snapshot of https://github.com/ent/ent.git (master, 2026-09-15; blobs > 131072B omitted)

entc/integration/edgefield/edgefield_test.go

@@ -0,0 +1,145 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package edgefield
+
+import (
+	"context"
+	"encoding/json"
+	"testing"
+	"time"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/entc/integration/edgefield/ent"
+	"entgo.io/ent/entc/integration/edgefield/ent/migrate"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/stretchr/testify/require"
+)
+
+func TestEdgeField(t *testing.T) {
+	client, err := ent.Open(dialect.SQLite, "file:ent?mode=memory&cache=shared&_fk=1")
+	require.NoError(t, err)
+	defer client.Close()
+	ctx := context.Background()
+	require.NoError(t, client.Schema.Create(ctx, migrate.WithGlobalUniqueID(true)))
+
+	a8m := client.User.Create().SaveX(ctx)
+	p1 := client.Pet.Create().SetOwner(a8m).SaveX(ctx)
+	require.Equal(t, a8m.ID, p1.OwnerID)
+	f1 := client.Pet.Query().Where(pet.OwnerID(a8m.ID)).OnlyX(ctx)
+	require.Equal(t, p1.ID, f1.ID)
+	require.Equal(t, p1.OwnerID, f1.OwnerID)
+
+	c1 := client.User.Create().SetParent(a8m).SaveX(ctx)
+	require.Equal(t, c1.ParentID, a8m.ID)
+	c2 := client.User.Create().SetParentID(a8m.ID).SaveX(ctx)
+	require.Equal(t, c2.ParentID, a8m.ID)
+	pid := a8m.QueryChildren().GroupBy(user.FieldParentID).IntX(ctx)
+	require.Equal(t, pid, a8m.ID)
+	c3 := client.User.Create().SetParentID(c2.ID).SaveX(ctx)
+	require.Equal(t,
+		client.User.Query().
+			Where(
+				user.HasParentWith(
+					user.ParentID(a8m.ID),
+				),
+			).OnlyIDX(ctx),
+		c3.ID,
+	)
+
+	ps1 := client.Post.Create().SetText("entgo.io").SaveX(ctx)
+	require.Nil(t, ps1.AuthorID)
+	ps1 = ps1.Update().SetAuthorID(a8m.ID).SaveX(ctx)
+	require.NotNil(t, ps1.AuthorID)
+	require.Equal(t, a8m.ID, *ps1.AuthorID)
+	ps1 = client.Post.Query().WithAuthor().OnlyX(ctx)
+	require.NotNil(t, ps1.AuthorID)
+	require.Equal(t, a8m.ID, *ps1.AuthorID)
+	require.Equal(t, a8m.ID, ps1.Edges.Author.ID)
+
+	nati := client.User.Create().SetSpouse(a8m).SaveX(ctx)
+	require.Equal(t, nati.SpouseID, a8m.ID)
+	require.Equal(t, nati.ID, a8m.QuerySpouse().OnlyIDX(ctx))
+
+	visa := client.Card.Create().SetOwnerID(a8m.ID).SaveX(ctx)
+	require.Equal(t, a8m.ID, visa.OwnerID)
+	require.Equal(t, nati.ID, visa.QueryOwner().QuerySpouse().OnlyIDX(ctx))
+	require.Equal(t, nati.ID, client.Card.Query().QueryOwner().QuerySpouse().OnlyIDX(ctx))
+
+	m1 := client.Metadata.Create().SetUser(a8m).SetAge(10).SaveX(ctx)
+	require.Equal(t, a8m.ID, m1.ID)
+	require.Equal(t, 10, m1.Age)
+	m1 = a8m.QueryMetadata().OnlyX(ctx)
+	require.Equal(t, a8m.ID, m1.ID)
+	require.Equal(t, a8m.ID, m1.QueryUser().OnlyIDX(ctx))
+	_, err = client.Metadata.Create().SetID(a8m.ID).SetAge(10).Save(ctx)
+	require.True(t, ent.IsConstraintError(err), "UNIQUE constraint failed: metadata.id")
+	err = m1.Update().ClearUser().Exec(ctx)
+	require.Error(t, err, "clearing primary key is not allowed")
+
+	client.Info.Create().SetUser(a8m).SetContent(json.RawMessage("{}")).SaveX(ctx)
+	inf := a8m.QueryInfo().OnlyX(ctx)
+	require.Equal(t, a8m.ID, inf.ID)
+	_, err = client.Info.Create().SetID(a8m.ID).SetContent(json.RawMessage("10")).Save(ctx)
+	require.True(t, ent.IsConstraintError(err), "UNIQUE constraint failed: metadata.id")
+
+	require.NotZero(t, client.Pet.Query().QueryOwner().CountX(ctx))
+	client.Pet.Update().ClearOwnerID().ExecX(ctx)
+	require.Zero(t, client.Pet.Query().QueryOwner().CountX(ctx))
+
+	require.False(t, client.Rental.Query().ExistX(ctx))
+	car1 := client.Car.Create().SetNumber("102030").SaveX(ctx)
+	car2 := client.Car.Create().SetNumber("102030").SaveX(ctx)
+	client.Rental.Create().SetUserID(a8m.ID).SetCarID(car1.ID).SaveX(ctx)
+	require.Equal(t, car1.ID, a8m.QueryRentals().QueryCar().OnlyIDX(ctx))
+	dt, err := time.Parse(time.RFC3339, "1906-01-02T00:00:00+00:00")
+	require.NoError(t, err)
+	client.Rental.Create().SetUserID(a8m.ID).SetCarID(car2.ID).SetDate(dt).SaveX(ctx)
+	require.Equal(t, 2, a8m.QueryRentals().QueryCar().CountX(ctx))
+	require.Equal(t, car2.ID, a8m.QueryRentals().Where(rental.DateLTE(dt)).QueryCar().OnlyIDX(ctx))
+	_, err = client.Rental.Create().SetUserID(a8m.ID).SetCarID(car2.ID).SetDate(dt).Save(ctx)
+	require.Error(t, err)
+	require.True(t, ent.IsConstraintError(err))
+
+	curr := client.Node.Create().SaveX(ctx)
+	for i := 0; i < 5; i++ {
+		curr = client.Node.Create().SetPrevID(curr.ID).SetValue(curr.Value + 1).SaveX(ctx)
+	}
+	head := client.Node.Query().Where(node.Not(node.HasPrev())).OnlyX(ctx)
+	for i := 0; i < 5; i++ {
+		curr = head.QueryNext().OnlyX(ctx)
+		require.Equal(t, head.Value+1, curr.Value)
+		head = curr
+	}
+}
+
+func TestNamedEdges(t *testing.T) {
+	client, err := ent.Open(dialect.SQLite, "file:ent?mode=memory&_fk=1")
+	require.NoError(t, err)
+	defer client.Close()
+	ctx := context.Background()
+	require.NoError(t, client.Schema.Create(ctx, migrate.WithGlobalUniqueID(true)))
+	u1 := client.User.Create().SaveX(ctx)
+	client.Pet.Create().SetOwner(u1).SaveX(ctx)
+
+	u1 = client.User.Query().
+		WithPets(func(q *ent.PetQuery) {
+			q.Select(pet.FieldID)
+		}).
+		WithNamedPets("Named", func(q *ent.PetQuery) {
+			q.Select(pet.FieldID)
+		}).
+		OnlyX(ctx)
+	require.Len(t, u1.Edges.Pets, 1)
+	require.Equal(t, u1.Edges.Pets[0].OwnerID, u1.ID)
+	pets, err := u1.NamedPets("Named")
+	require.NoError(t, err)
+	require.Len(t, pets, 1)
+	require.Equal(t, pets[0].OwnerID, u1.ID)
+}

entc/integration/edgefield/ent/car.go

@@ -0,0 +1,159 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"github.com/google/uuid"
+)
+
+// Car is the model entity for the Car schema.
+type Car struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID uuid.UUID `json:"id,omitempty"`
+	// Number holds the value of the "number" field.
+	Number string `json:"number,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the CarQuery when eager-loading is set.
+	Edges        CarEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// CarEdges holds the relations/edges for other nodes in the graph.
+type CarEdges struct {
+	// Rentals holds the value of the rentals edge.
+	Rentals []*Rental `json:"rentals,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes  [1]bool
+	namedRentals map[string][]*Rental
+}
+
+// RentalsOrErr returns the Rentals value or an error if the edge
+// was not loaded in eager-loading.
+func (e CarEdges) RentalsOrErr() ([]*Rental, error) {
+	if e.loadedTypes[0] {
+		return e.Rentals, nil
+	}
+	return nil, &NotLoadedError{edge: "rentals"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Car) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case car.FieldNumber:
+			values[i] = new(sql.NullString)
+		case car.FieldID:
+			values[i] = new(uuid.UUID)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Car fields.
+func (_m *Car) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case car.FieldID:
+			if value, ok := values[i].(*uuid.UUID); !ok {
+				return fmt.Errorf("unexpected type %T for field id", values[i])
+			} else if value != nil {
+				_m.ID = *value
+			}
+		case car.FieldNumber:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field number", values[i])
+			} else if value.Valid {
+				_m.Number = value.String
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Car.
+// This includes values selected through modifiers, order, etc.
+func (_m *Car) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryRentals queries the "rentals" edge of the Car entity.
+func (_m *Car) QueryRentals() *RentalQuery {
+	return NewCarClient(_m.config).QueryRentals(_m)
+}
+
+// Update returns a builder for updating this Car.
+// Note that you need to call Car.Unwrap() before calling this method if this Car
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Car) Update() *CarUpdateOne {
+	return NewCarClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Car entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Car) Unwrap() *Car {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Car is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Car) String() string {
+	var builder strings.Builder
+	builder.WriteString("Car(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("number=")
+	builder.WriteString(_m.Number)
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// NamedRentals returns the Rentals named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *Car) NamedRentals(name string) ([]*Rental, error) {
+	if _m.Edges.namedRentals == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedRentals[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *Car) appendNamedRentals(name string, edges ...*Rental) {
+	if _m.Edges.namedRentals == nil {
+		_m.Edges.namedRentals = make(map[string][]*Rental)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedRentals[name] = []*Rental{}
+	} else {
+		_m.Edges.namedRentals[name] = append(_m.Edges.namedRentals[name], edges...)
+	}
+}
+
+// Cars is a parsable slice of Car.
+type Cars []*Car

entc/integration/edgefield/ent/car/car.go

@@ -0,0 +1,88 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package car
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/google/uuid"
+)
+
+const (
+	// Label holds the string label denoting the car type in the database.
+	Label = "car"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldNumber holds the string denoting the number field in the database.
+	FieldNumber = "number"
+	// EdgeRentals holds the string denoting the rentals edge name in mutations.
+	EdgeRentals = "rentals"
+	// Table holds the table name of the car in the database.
+	Table = "cars"
+	// RentalsTable is the table that holds the rentals relation/edge.
+	RentalsTable = "rentals"
+	// RentalsInverseTable is the table name for the Rental entity.
+	// It exists in this package in order to avoid circular dependency with the "rental" package.
+	RentalsInverseTable = "rentals"
+	// RentalsColumn is the table column denoting the rentals relation/edge.
+	RentalsColumn = "car_id"
+)
+
+// Columns holds all SQL columns for car fields.
+var Columns = []string{
+	FieldID,
+	FieldNumber,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultID holds the default value on creation for the "id" field.
+	DefaultID func() uuid.UUID
+)
+
+// OrderOption defines the ordering options for the Car queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByNumber orders the results by the number field.
+func ByNumber(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldNumber, opts...).ToFunc()
+}
+
+// ByRentalsCount orders the results by rentals count.
+func ByRentalsCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newRentalsStep(), opts...)
+	}
+}
+
+// ByRentals orders the results by rentals terms.
+func ByRentals(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newRentalsStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+func newRentalsStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(RentalsInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, false, RentalsTable, RentalsColumn),
+	)
+}

entc/integration/edgefield/ent/car/mutation.go

@@ -0,0 +1,348 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package car
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Car nodes in the graph.
+type Mutation struct {
+	op             ent.Op
+	typ            string
+	number         *string
+	clearedFields  map[string]struct{}
+	rentals        map[int]struct{}
+	removedrentals map[int]struct{}
+	clearedrentals bool
+	predicates     []predicate.Car
+}
+
+// NewMutation creates a new Mutation for the Car entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Car",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Car {
+	return m.predicates
+}
+
+// SetNumber sets the "number" field.
+func (m *Mutation) SetNumber(s string) {
+	m.number = &s
+}
+
+// Number returns the value of the "number" field in the mutation.
+func (m *Mutation) Number() (r string, exists bool) {
+	v := m.number
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearNumber clears the value of the "number" field.
+func (m *Mutation) ClearNumber() {
+	m.number = nil
+	m.clearedFields[FieldNumber] = struct{}{}
+}
+
+// NumberCleared returns if the "number" field was cleared in this mutation.
+func (m *Mutation) NumberCleared() bool {
+	_, ok := m.clearedFields[FieldNumber]
+	return ok
+}
+
+// ResetNumber resets all changes to the "number" field.
+func (m *Mutation) ResetNumber() {
+	m.number = nil
+	delete(m.clearedFields, FieldNumber)
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by ids.
+func (m *Mutation) AddRentalIDs(ids ...int) {
+	if m.rentals == nil {
+		m.rentals = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.rentals[ids[i]] = struct{}{}
+	}
+}
+
+// ClearRentals clears the "rentals" edge to the Rental entity.
+func (m *Mutation) ClearRentals() {
+	m.clearedrentals = true
+}
+
+// RentalsCleared reports if the "rentals" edge to the Rental entity was cleared.
+func (m *Mutation) RentalsCleared() bool {
+	return m.clearedrentals
+}
+
+// RemoveRentalIDs removes the "rentals" edge to the Rental entity by IDs.
+func (m *Mutation) RemoveRentalIDs(ids ...int) {
+	if m.removedrentals == nil {
+		m.removedrentals = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.rentals, ids[i])
+		m.removedrentals[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedRentals returns the removed IDs of the "rentals" edge to the Rental entity.
+func (m *Mutation) RemovedRentalsIDs() (ids []int) {
+	for id := range m.removedrentals {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// RentalsIDs returns the "rentals" edge IDs in the mutation.
+func (m *Mutation) RentalsIDs() (ids []int) {
+	for id := range m.rentals {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetRentals resets all changes to the "rentals" edge.
+func (m *Mutation) ResetRentals() {
+	m.rentals = nil
+	m.clearedrentals = false
+	m.removedrentals = nil
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Car) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Car, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Car).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 1)
+	if m.number != nil {
+		fields = append(fields, FieldNumber)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldNumber:
+		return m.Number()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Car field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldNumber:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetNumber(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Car field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	return nil
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Car numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldNumber) {
+		fields = append(fields, FieldNumber)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldNumber:
+		m.ClearNumber()
+		return nil
+	}
+	return fmt.Errorf("unknown Car nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldNumber:
+		m.ResetNumber()
+		return nil
+	}
+	return fmt.Errorf("unknown Car field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.rentals != nil {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeRentals:
+		ids := make([]ent.Value, 0, len(m.rentals))
+		for id := range m.rentals {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.removedrentals != nil {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeRentals:
+		ids := make([]ent.Value, 0, len(m.removedrentals))
+		for id := range m.removedrentals {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedrentals {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeRentals:
+		return m.clearedrentals
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Car unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeRentals:
+		m.ResetRentals()
+		return nil
+	}
+	return fmt.Errorf("unknown Car edge %s", name)
+}

entc/integration/edgefield/ent/car/where.go

@@ -0,0 +1,177 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package car
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"github.com/google/uuid"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id uuid.UUID) predicate.Car {
+	return predicate.Car(sql.FieldLTE(FieldID, id))
+}
+
+// Number applies equality check predicate on the "number" field. It's identical to NumberEQ.
+func Number(v string) predicate.Car {
+	return predicate.Car(sql.FieldEQ(FieldNumber, v))
+}
+
+// NumberEQ applies the EQ predicate on the "number" field.
+func NumberEQ(v string) predicate.Car {
+	return predicate.Car(sql.FieldEQ(FieldNumber, v))
+}
+
+// NumberNEQ applies the NEQ predicate on the "number" field.
+func NumberNEQ(v string) predicate.Car {
+	return predicate.Car(sql.FieldNEQ(FieldNumber, v))
+}
+
+// NumberIn applies the In predicate on the "number" field.
+func NumberIn(vs ...string) predicate.Car {
+	return predicate.Car(sql.FieldIn(FieldNumber, vs...))
+}
+
+// NumberNotIn applies the NotIn predicate on the "number" field.
+func NumberNotIn(vs ...string) predicate.Car {
+	return predicate.Car(sql.FieldNotIn(FieldNumber, vs...))
+}
+
+// NumberGT applies the GT predicate on the "number" field.
+func NumberGT(v string) predicate.Car {
+	return predicate.Car(sql.FieldGT(FieldNumber, v))
+}
+
+// NumberGTE applies the GTE predicate on the "number" field.
+func NumberGTE(v string) predicate.Car {
+	return predicate.Car(sql.FieldGTE(FieldNumber, v))
+}
+
+// NumberLT applies the LT predicate on the "number" field.
+func NumberLT(v string) predicate.Car {
+	return predicate.Car(sql.FieldLT(FieldNumber, v))
+}
+
+// NumberLTE applies the LTE predicate on the "number" field.
+func NumberLTE(v string) predicate.Car {
+	return predicate.Car(sql.FieldLTE(FieldNumber, v))
+}
+
+// NumberContains applies the Contains predicate on the "number" field.
+func NumberContains(v string) predicate.Car {
+	return predicate.Car(sql.FieldContains(FieldNumber, v))
+}
+
+// NumberHasPrefix applies the HasPrefix predicate on the "number" field.
+func NumberHasPrefix(v string) predicate.Car {
+	return predicate.Car(sql.FieldHasPrefix(FieldNumber, v))
+}
+
+// NumberHasSuffix applies the HasSuffix predicate on the "number" field.
+func NumberHasSuffix(v string) predicate.Car {
+	return predicate.Car(sql.FieldHasSuffix(FieldNumber, v))
+}
+
+// NumberIsNil applies the IsNil predicate on the "number" field.
+func NumberIsNil() predicate.Car {
+	return predicate.Car(sql.FieldIsNull(FieldNumber))
+}
+
+// NumberNotNil applies the NotNil predicate on the "number" field.
+func NumberNotNil() predicate.Car {
+	return predicate.Car(sql.FieldNotNull(FieldNumber))
+}
+
+// NumberEqualFold applies the EqualFold predicate on the "number" field.
+func NumberEqualFold(v string) predicate.Car {
+	return predicate.Car(sql.FieldEqualFold(FieldNumber, v))
+}
+
+// NumberContainsFold applies the ContainsFold predicate on the "number" field.
+func NumberContainsFold(v string) predicate.Car {
+	return predicate.Car(sql.FieldContainsFold(FieldNumber, v))
+}
+
+// HasRentals applies the HasEdge predicate on the "rentals" edge.
+func HasRentals() predicate.Car {
+	return predicate.Car(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, false, RentalsTable, RentalsColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasRentalsWith applies the HasEdge predicate on the "rentals" edge with a given conditions (other predicates).
+func HasRentalsWith(preds ...predicate.Rental) predicate.Car {
+	return predicate.Car(func(s *sql.Selector) {
+		step := newRentalsStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Car) predicate.Car {
+	return predicate.Car(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Car) predicate.Car {
+	return predicate.Car(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Car) predicate.Car {
+	return predicate.Car(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/car_create.go

@@ -0,0 +1,253 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// CarCreate is the builder for creating a Car entity.
+type CarCreate struct {
+	config
+	mutation *CarMutation
+	hooks    []Hook
+}
+
+// SetNumber sets the "number" field.
+func (_c *CarCreate) SetNumber(v string) *CarCreate {
+	_c.mutation.SetNumber(v)
+	return _c
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_c *CarCreate) SetNillableNumber(v *string) *CarCreate {
+	if v != nil {
+		_c.SetNumber(*v)
+	}
+	return _c
+}
+
+// SetID sets the "id" field.
+func (_c *CarCreate) SetID(v uuid.UUID) *CarCreate {
+	_c.mutation.SetID(v)
+	return _c
+}
+
+// SetNillableID sets the "id" field if the given value is not nil.
+func (_c *CarCreate) SetNillableID(v *uuid.UUID) *CarCreate {
+	if v != nil {
+		_c.SetID(*v)
+	}
+	return _c
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by IDs.
+func (_c *CarCreate) AddRentalIDs(ids ...int) *CarCreate {
+	_c.mutation.AddRentalIDs(ids...)
+	return _c
+}
+
+// AddRentals adds the "rentals" edges to the Rental entity.
+func (_c *CarCreate) AddRentals(v ...*Rental) *CarCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddRentalIDs(ids...)
+}
+
+// Mutation returns the CarMutation object of the builder.
+func (_c *CarCreate) Mutation() *CarMutation {
+	return _c.mutation
+}
+
+// Save creates the Car in the database.
+func (_c *CarCreate) Save(ctx context.Context) (*Car, error) {
+	_c.defaults()
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *CarCreate) SaveX(ctx context.Context) *Car {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *CarCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *CarCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *CarCreate) defaults() {
+	if _, ok := _c.mutation.ID(); !ok {
+		v := car.DefaultID()
+		_c.mutation.SetID(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *CarCreate) check() error {
+	return nil
+}
+
+func (_c *CarCreate) sqlSave(ctx context.Context) (*Car, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != nil {
+		if id, ok := _spec.ID.Value.(*uuid.UUID); ok {
+			_node.ID = *id
+		} else if err := _node.ID.Scan(_spec.ID.Value); err != nil {
+			return nil, err
+		}
+	}
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *CarCreate) createSpec() (*Car, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Car{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(car.Table, sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID))
+	)
+	if id, ok := _c.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = &id
+	}
+	if value, ok := _c.mutation.Number(); ok {
+		_spec.SetField(car.FieldNumber, field.TypeString, value)
+		_node.Number = value
+	}
+	if nodes := _c.mutation.RentalsIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// CarCreateBulk is the builder for creating many Car entities in bulk.
+type CarCreateBulk struct {
+	config
+	err      error
+	builders []*CarCreate
+}
+
+// Save creates the Car entities in the database.
+func (_c *CarCreateBulk) Save(ctx context.Context) ([]*Car, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Car, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*CarMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *CarCreateBulk) SaveX(ctx context.Context) []*Car {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *CarCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *CarCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/car_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// CarDelete is the builder for deleting a Car entity.
+type CarDelete struct {
+	config
+	hooks    []Hook
+	mutation *CarMutation
+}
+
+// Where appends a list predicates to the CarDelete builder.
+func (_d *CarDelete) Where(ps ...predicate.Car) *CarDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *CarDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *CarDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *CarDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(car.Table, sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// CarDeleteOne is the builder for deleting a single Car entity.
+type CarDeleteOne struct {
+	_d *CarDelete
+}
+
+// Where appends a list predicates to the CarDelete builder.
+func (_d *CarDeleteOne) Where(ps ...predicate.Car) *CarDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *CarDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{car.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *CarDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/car_query.go

@@ -0,0 +1,633 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"database/sql/driver"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// CarQuery is the builder for querying Car entities.
+type CarQuery struct {
+	config
+	ctx              *QueryContext
+	order            []car.OrderOption
+	inters           []Interceptor
+	predicates       []predicate.Car
+	withRentals      *RentalQuery
+	withNamedRentals map[string]*RentalQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the CarQuery builder.
+func (_q *CarQuery) Where(ps ...predicate.Car) *CarQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *CarQuery) Limit(limit int) *CarQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *CarQuery) Offset(offset int) *CarQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *CarQuery) Unique(unique bool) *CarQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *CarQuery) Order(o ...car.OrderOption) *CarQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryRentals chains the current query on the "rentals" edge.
+func (_q *CarQuery) QueryRentals() *RentalQuery {
+	query := (&RentalClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(car.Table, car.FieldID, selector),
+			sqlgraph.To(rental.Table, rental.FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, false, car.RentalsTable, car.RentalsColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Car entity from the query.
+// Returns a *NotFoundError when no Car was found.
+func (_q *CarQuery) First(ctx context.Context) (*Car, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{car.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *CarQuery) FirstX(ctx context.Context) *Car {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Car ID from the query.
+// Returns a *NotFoundError when no Car ID was found.
+func (_q *CarQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{car.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *CarQuery) FirstIDX(ctx context.Context) uuid.UUID {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Car entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Car entity is found.
+// Returns a *NotFoundError when no Car entities are found.
+func (_q *CarQuery) Only(ctx context.Context) (*Car, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{car.Label}
+	default:
+		return nil, &NotSingularError{car.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *CarQuery) OnlyX(ctx context.Context) *Car {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Car ID in the query.
+// Returns a *NotSingularError when more than one Car ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *CarQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{car.Label}
+	default:
+		err = &NotSingularError{car.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *CarQuery) OnlyIDX(ctx context.Context) uuid.UUID {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Cars.
+func (_q *CarQuery) All(ctx context.Context) ([]*Car, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Car, *CarQuery]()
+	return withInterceptors[[]*Car](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *CarQuery) AllX(ctx context.Context) []*Car {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Car IDs.
+func (_q *CarQuery) IDs(ctx context.Context) (ids []uuid.UUID, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(car.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *CarQuery) IDsX(ctx context.Context) []uuid.UUID {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *CarQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*CarQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *CarQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *CarQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *CarQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the CarQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *CarQuery) Clone() *CarQuery {
+	if _q == nil {
+		return nil
+	}
+	return &CarQuery{
+		config:      _q.config,
+		ctx:         _q.ctx.Clone(),
+		order:       append([]car.OrderOption{}, _q.order...),
+		inters:      append([]Interceptor{}, _q.inters...),
+		predicates:  append([]predicate.Car{}, _q.predicates...),
+		withRentals: _q.withRentals.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithRentals tells the query-builder to eager-load the nodes that are connected to
+// the "rentals" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *CarQuery) WithRentals(opts ...func(*RentalQuery)) *CarQuery {
+	query := (&RentalClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withRentals = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Number string `json:"number,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Car.Query().
+//		GroupBy(car.FieldNumber).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *CarQuery) GroupBy(field string, fields ...string) *CarGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &CarGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = car.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Number string `json:"number,omitempty"`
+//	}
+//
+//	client.Car.Query().
+//		Select(car.FieldNumber).
+//		Scan(ctx, &v)
+func (_q *CarQuery) Select(fields ...string) *CarSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &CarSelect{CarQuery: _q}
+	sbuild.label = car.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a CarSelect configured with the given aggregations.
+func (_q *CarQuery) Aggregate(fns ...AggregateFunc) *CarSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *CarQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !car.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *CarQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Car, error) {
+	var (
+		nodes       = []*Car{}
+		_spec       = _q.querySpec()
+		loadedTypes = [1]bool{
+			_q.withRentals != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Car).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Car{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withRentals; query != nil {
+		if err := _q.loadRentals(ctx, query, nodes,
+			func(n *Car) { n.Edges.Rentals = []*Rental{} },
+			func(n *Car, e *Rental) { n.Edges.Rentals = append(n.Edges.Rentals, e) }); err != nil {
+			return nil, err
+		}
+	}
+	for name, query := range _q.withNamedRentals {
+		if err := _q.loadRentals(ctx, query, nodes,
+			func(n *Car) { n.appendNamedRentals(name) },
+			func(n *Car, e *Rental) { n.appendNamedRentals(name, e) }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *CarQuery) loadRentals(ctx context.Context, query *RentalQuery, nodes []*Car, init func(*Car), assign func(*Car, *Rental)) error {
+	fks := make([]driver.Value, 0, len(nodes))
+	nodeids := make(map[uuid.UUID]*Car)
+	for i := range nodes {
+		fks = append(fks, nodes[i].ID)
+		nodeids[nodes[i].ID] = nodes[i]
+		if init != nil {
+			init(nodes[i])
+		}
+	}
+	if len(query.ctx.Fields) > 0 {
+		query.ctx.AppendFieldOnce(rental.FieldCarID)
+	}
+	query.Where(predicate.Rental(func(s *sql.Selector) {
+		s.Where(sql.InValues(s.C(car.RentalsColumn), fks...))
+	}))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		fk := n.CarID
+		node, ok := nodeids[fk]
+		if !ok {
+			return fmt.Errorf(`unexpected referenced foreign-key "car_id" returned %v for node %v`, fk, n.ID)
+		}
+		assign(node, n)
+	}
+	return nil
+}
+
+func (_q *CarQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *CarQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(car.Table, car.Columns, sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, car.FieldID)
+		for i := range fields {
+			if fields[i] != car.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *CarQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(car.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = car.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// WithNamedRentals tells the query-builder to eager-load the nodes that are connected to the "rentals"
+// edge with the given name. The optional arguments are used to configure the query builder of the edge.
+func (_q *CarQuery) WithNamedRentals(name string, opts ...func(*RentalQuery)) *CarQuery {
+	query := (&RentalClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	if _q.withNamedRentals == nil {
+		_q.withNamedRentals = make(map[string]*RentalQuery)
+	}
+	_q.withNamedRentals[name] = query
+	return _q
+}
+
+// CarGroupBy is the group-by builder for Car entities.
+type CarGroupBy struct {
+	selector
+	build *CarQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *CarGroupBy) Aggregate(fns ...AggregateFunc) *CarGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *CarGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*CarQuery, *CarGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *CarGroupBy) sqlScan(ctx context.Context, root *CarQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// CarSelect is the builder for selecting fields of Car entities.
+type CarSelect struct {
+	*CarQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *CarSelect) Aggregate(fns ...AggregateFunc) *CarSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *CarSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*CarQuery, *CarSelect](ctx, _s.CarQuery, _s, _s.inters, v)
+}
+
+func (_s *CarSelect) sqlScan(ctx context.Context, root *CarQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/car_update.go

@@ -0,0 +1,394 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/schema/field"
+)
+
+// CarUpdate is the builder for updating Car entities.
+type CarUpdate struct {
+	config
+	hooks    []Hook
+	mutation *CarMutation
+}
+
+// Where appends a list predicates to the CarUpdate builder.
+func (_u *CarUpdate) Where(ps ...predicate.Car) *CarUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetNumber sets the "number" field.
+func (_u *CarUpdate) SetNumber(v string) *CarUpdate {
+	_u.mutation.SetNumber(v)
+	return _u
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_u *CarUpdate) SetNillableNumber(v *string) *CarUpdate {
+	if v != nil {
+		_u.SetNumber(*v)
+	}
+	return _u
+}
+
+// ClearNumber clears the value of the "number" field.
+func (_u *CarUpdate) ClearNumber() *CarUpdate {
+	_u.mutation.ClearNumber()
+	return _u
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by IDs.
+func (_u *CarUpdate) AddRentalIDs(ids ...int) *CarUpdate {
+	_u.mutation.AddRentalIDs(ids...)
+	return _u
+}
+
+// AddRentals adds the "rentals" edges to the Rental entity.
+func (_u *CarUpdate) AddRentals(v ...*Rental) *CarUpdate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.AddRentalIDs(ids...)
+}
+
+// Mutation returns the CarMutation object of the builder.
+func (_u *CarUpdate) Mutation() *CarMutation {
+	return _u.mutation
+}
+
+// ClearRentals clears all "rentals" edges to the Rental entity.
+func (_u *CarUpdate) ClearRentals() *CarUpdate {
+	_u.mutation.ClearRentals()
+	return _u
+}
+
+// RemoveRentalIDs removes the "rentals" edge to Rental entities by IDs.
+func (_u *CarUpdate) RemoveRentalIDs(ids ...int) *CarUpdate {
+	_u.mutation.RemoveRentalIDs(ids...)
+	return _u
+}
+
+// RemoveRentals removes "rentals" edges to Rental entities.
+func (_u *CarUpdate) RemoveRentals(v ...*Rental) *CarUpdate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.RemoveRentalIDs(ids...)
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *CarUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *CarUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *CarUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *CarUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *CarUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(car.Table, car.Columns, sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Number(); ok {
+		_spec.SetField(car.FieldNumber, field.TypeString, value)
+	}
+	if _u.mutation.NumberCleared() {
+		_spec.ClearField(car.FieldNumber, field.TypeString)
+	}
+	if _u.mutation.RentalsCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RemovedRentalsIDs(); len(nodes) > 0 && !_u.mutation.RentalsCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RentalsIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{car.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// CarUpdateOne is the builder for updating a single Car entity.
+type CarUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *CarMutation
+}
+
+// SetNumber sets the "number" field.
+func (_u *CarUpdateOne) SetNumber(v string) *CarUpdateOne {
+	_u.mutation.SetNumber(v)
+	return _u
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_u *CarUpdateOne) SetNillableNumber(v *string) *CarUpdateOne {
+	if v != nil {
+		_u.SetNumber(*v)
+	}
+	return _u
+}
+
+// ClearNumber clears the value of the "number" field.
+func (_u *CarUpdateOne) ClearNumber() *CarUpdateOne {
+	_u.mutation.ClearNumber()
+	return _u
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by IDs.
+func (_u *CarUpdateOne) AddRentalIDs(ids ...int) *CarUpdateOne {
+	_u.mutation.AddRentalIDs(ids...)
+	return _u
+}
+
+// AddRentals adds the "rentals" edges to the Rental entity.
+func (_u *CarUpdateOne) AddRentals(v ...*Rental) *CarUpdateOne {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.AddRentalIDs(ids...)
+}
+
+// Mutation returns the CarMutation object of the builder.
+func (_u *CarUpdateOne) Mutation() *CarMutation {
+	return _u.mutation
+}
+
+// ClearRentals clears all "rentals" edges to the Rental entity.
+func (_u *CarUpdateOne) ClearRentals() *CarUpdateOne {
+	_u.mutation.ClearRentals()
+	return _u
+}
+
+// RemoveRentalIDs removes the "rentals" edge to Rental entities by IDs.
+func (_u *CarUpdateOne) RemoveRentalIDs(ids ...int) *CarUpdateOne {
+	_u.mutation.RemoveRentalIDs(ids...)
+	return _u
+}
+
+// RemoveRentals removes "rentals" edges to Rental entities.
+func (_u *CarUpdateOne) RemoveRentals(v ...*Rental) *CarUpdateOne {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.RemoveRentalIDs(ids...)
+}
+
+// Where appends a list predicates to the CarUpdate builder.
+func (_u *CarUpdateOne) Where(ps ...predicate.Car) *CarUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *CarUpdateOne) Select(field string, fields ...string) *CarUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Car entity.
+func (_u *CarUpdateOne) Save(ctx context.Context) (*Car, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *CarUpdateOne) SaveX(ctx context.Context) *Car {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *CarUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *CarUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *CarUpdateOne) sqlSave(ctx context.Context) (_node *Car, err error) {
+	_spec := sqlgraph.NewUpdateSpec(car.Table, car.Columns, sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Car.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, car.FieldID)
+		for _, f := range fields {
+			if !car.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != car.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Number(); ok {
+		_spec.SetField(car.FieldNumber, field.TypeString, value)
+	}
+	if _u.mutation.NumberCleared() {
+		_spec.ClearField(car.FieldNumber, field.TypeString)
+	}
+	if _u.mutation.RentalsCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RemovedRentalsIDs(); len(nodes) > 0 && !_u.mutation.RentalsCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RentalsIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   car.RentalsTable,
+			Columns: []string{car.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Car{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{car.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/card.go

@@ -0,0 +1,147 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// Card is the model entity for the Card schema.
+type Card struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Number holds the value of the "number" field.
+	Number string `json:"number,omitempty"`
+	// OwnerID holds the value of the "owner_id" field.
+	OwnerID int `json:"owner_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the CardQuery when eager-loading is set.
+	Edges        CardEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// CardEdges holds the relations/edges for other nodes in the graph.
+type CardEdges struct {
+	// Owner holds the value of the owner edge.
+	Owner *User `json:"owner,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// OwnerOrErr returns the Owner value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e CardEdges) OwnerOrErr() (*User, error) {
+	if e.Owner != nil {
+		return e.Owner, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "owner"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Card) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case card.FieldID, card.FieldOwnerID:
+			values[i] = new(sql.NullInt64)
+		case card.FieldNumber:
+			values[i] = new(sql.NullString)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Card fields.
+func (_m *Card) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case card.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case card.FieldNumber:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field number", values[i])
+			} else if value.Valid {
+				_m.Number = value.String
+			}
+		case card.FieldOwnerID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field owner_id", values[i])
+			} else if value.Valid {
+				_m.OwnerID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Card.
+// This includes values selected through modifiers, order, etc.
+func (_m *Card) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryOwner queries the "owner" edge of the Card entity.
+func (_m *Card) QueryOwner() *UserQuery {
+	return NewCardClient(_m.config).QueryOwner(_m)
+}
+
+// Update returns a builder for updating this Card.
+// Note that you need to call Card.Unwrap() before calling this method if this Card
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Card) Update() *CardUpdateOne {
+	return NewCardClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Card entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Card) Unwrap() *Card {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Card is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Card) String() string {
+	var builder strings.Builder
+	builder.WriteString("Card(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("number=")
+	builder.WriteString(_m.Number)
+	builder.WriteString(", ")
+	builder.WriteString("owner_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.OwnerID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Cards is a parsable slice of Card.
+type Cards []*Card

entc/integration/edgefield/ent/card/card.go

@@ -0,0 +1,83 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package card
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the card type in the database.
+	Label = "card"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldNumber holds the string denoting the number field in the database.
+	FieldNumber = "number"
+	// FieldOwnerID holds the string denoting the owner_id field in the database.
+	FieldOwnerID = "owner_id"
+	// EdgeOwner holds the string denoting the owner edge name in mutations.
+	EdgeOwner = "owner"
+	// Table holds the table name of the card in the database.
+	Table = "cards"
+	// OwnerTable is the table that holds the owner relation/edge.
+	OwnerTable = "cards"
+	// OwnerInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	OwnerInverseTable = "users"
+	// OwnerColumn is the table column denoting the owner relation/edge.
+	OwnerColumn = "owner_id"
+)
+
+// Columns holds all SQL columns for card fields.
+var Columns = []string{
+	FieldID,
+	FieldNumber,
+	FieldOwnerID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// OrderOption defines the ordering options for the Card queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByNumber orders the results by the number field.
+func ByNumber(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldNumber, opts...).ToFunc()
+}
+
+// ByOwnerID orders the results by the owner_id field.
+func ByOwnerID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldOwnerID, opts...).ToFunc()
+}
+
+// ByOwnerField orders the results by owner field.
+func ByOwnerField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newOwnerStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newOwnerStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(OwnerInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, true, OwnerTable, OwnerColumn),
+	)
+}

entc/integration/edgefield/ent/card/mutation.go

@@ -0,0 +1,366 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package card
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Card nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	number        *string
+	clearedFields map[string]struct{}
+	owner         *int
+	clearedowner  bool
+	predicates    []predicate.Card
+}
+
+// NewMutation creates a new Mutation for the Card entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Card",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Card {
+	return m.predicates
+}
+
+// SetNumber sets the "number" field.
+func (m *Mutation) SetNumber(s string) {
+	m.number = &s
+}
+
+// Number returns the value of the "number" field in the mutation.
+func (m *Mutation) Number() (r string, exists bool) {
+	v := m.number
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearNumber clears the value of the "number" field.
+func (m *Mutation) ClearNumber() {
+	m.number = nil
+	m.clearedFields[FieldNumber] = struct{}{}
+}
+
+// NumberCleared returns if the "number" field was cleared in this mutation.
+func (m *Mutation) NumberCleared() bool {
+	_, ok := m.clearedFields[FieldNumber]
+	return ok
+}
+
+// ResetNumber resets all changes to the "number" field.
+func (m *Mutation) ResetNumber() {
+	m.number = nil
+	delete(m.clearedFields, FieldNumber)
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (m *Mutation) SetOwnerID(i int) {
+	m.owner = &i
+}
+
+// OwnerID returns the value of the "owner_id" field in the mutation.
+func (m *Mutation) OwnerID() (r int, exists bool) {
+	v := m.owner
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (m *Mutation) ClearOwnerID() {
+	m.owner = nil
+	m.clearedFields[FieldOwnerID] = struct{}{}
+}
+
+// OwnerIDCleared returns if the "owner_id" field was cleared in this mutation.
+func (m *Mutation) OwnerIDCleared() bool {
+	_, ok := m.clearedFields[FieldOwnerID]
+	return ok
+}
+
+// ResetOwnerID resets all changes to the "owner_id" field.
+func (m *Mutation) ResetOwnerID() {
+	m.owner = nil
+	delete(m.clearedFields, FieldOwnerID)
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (m *Mutation) ClearOwner() {
+	m.clearedowner = true
+	m.clearedFields[FieldOwnerID] = struct{}{}
+}
+
+// OwnerCleared reports if the "owner" edge to the User entity was cleared.
+func (m *Mutation) OwnerCleared() bool {
+	return m.OwnerIDCleared() || m.clearedowner
+}
+
+// OwnerIDs returns the "owner" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// OwnerID instead. It exists only for internal usage by the builders.
+func (m *Mutation) OwnerIDs() (ids []int) {
+	if id := m.owner; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetOwner resets all changes to the "owner" edge.
+func (m *Mutation) ResetOwner() {
+	m.owner = nil
+	m.clearedowner = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Card) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Card, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Card).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.number != nil {
+		fields = append(fields, FieldNumber)
+	}
+	if m.owner != nil {
+		fields = append(fields, FieldOwnerID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldNumber:
+		return m.Number()
+	case FieldOwnerID:
+		return m.OwnerID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Card field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldNumber:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetNumber(v)
+		return nil
+	case FieldOwnerID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetOwnerID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Card field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Card numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldNumber) {
+		fields = append(fields, FieldNumber)
+	}
+	if m.FieldCleared(FieldOwnerID) {
+		fields = append(fields, FieldOwnerID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldNumber:
+		m.ClearNumber()
+		return nil
+	case FieldOwnerID:
+		m.ClearOwnerID()
+		return nil
+	}
+	return fmt.Errorf("unknown Card nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldNumber:
+		m.ResetNumber()
+		return nil
+	case FieldOwnerID:
+		m.ResetOwnerID()
+		return nil
+	}
+	return fmt.Errorf("unknown Card field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.owner != nil {
+		edges = append(edges, EdgeOwner)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeOwner:
+		if id := m.owner; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedowner {
+		edges = append(edges, EdgeOwner)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeOwner:
+		return m.clearedowner
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeOwner:
+		m.ClearOwner()
+		return nil
+	}
+	return fmt.Errorf("unknown Card unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeOwner:
+		m.ResetOwner()
+		return nil
+	}
+	return fmt.Errorf("unknown Card edge %s", name)
+}

entc/integration/edgefield/ent/card/where.go

@@ -0,0 +1,211 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package card
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Card {
+	return predicate.Card(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Card {
+	return predicate.Card(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Card {
+	return predicate.Card(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Card {
+	return predicate.Card(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Card {
+	return predicate.Card(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Card {
+	return predicate.Card(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Card {
+	return predicate.Card(sql.FieldLTE(FieldID, id))
+}
+
+// Number applies equality check predicate on the "number" field. It's identical to NumberEQ.
+func Number(v string) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldNumber, v))
+}
+
+// OwnerID applies equality check predicate on the "owner_id" field. It's identical to OwnerIDEQ.
+func OwnerID(v int) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldOwnerID, v))
+}
+
+// NumberEQ applies the EQ predicate on the "number" field.
+func NumberEQ(v string) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldNumber, v))
+}
+
+// NumberNEQ applies the NEQ predicate on the "number" field.
+func NumberNEQ(v string) predicate.Card {
+	return predicate.Card(sql.FieldNEQ(FieldNumber, v))
+}
+
+// NumberIn applies the In predicate on the "number" field.
+func NumberIn(vs ...string) predicate.Card {
+	return predicate.Card(sql.FieldIn(FieldNumber, vs...))
+}
+
+// NumberNotIn applies the NotIn predicate on the "number" field.
+func NumberNotIn(vs ...string) predicate.Card {
+	return predicate.Card(sql.FieldNotIn(FieldNumber, vs...))
+}
+
+// NumberGT applies the GT predicate on the "number" field.
+func NumberGT(v string) predicate.Card {
+	return predicate.Card(sql.FieldGT(FieldNumber, v))
+}
+
+// NumberGTE applies the GTE predicate on the "number" field.
+func NumberGTE(v string) predicate.Card {
+	return predicate.Card(sql.FieldGTE(FieldNumber, v))
+}
+
+// NumberLT applies the LT predicate on the "number" field.
+func NumberLT(v string) predicate.Card {
+	return predicate.Card(sql.FieldLT(FieldNumber, v))
+}
+
+// NumberLTE applies the LTE predicate on the "number" field.
+func NumberLTE(v string) predicate.Card {
+	return predicate.Card(sql.FieldLTE(FieldNumber, v))
+}
+
+// NumberContains applies the Contains predicate on the "number" field.
+func NumberContains(v string) predicate.Card {
+	return predicate.Card(sql.FieldContains(FieldNumber, v))
+}
+
+// NumberHasPrefix applies the HasPrefix predicate on the "number" field.
+func NumberHasPrefix(v string) predicate.Card {
+	return predicate.Card(sql.FieldHasPrefix(FieldNumber, v))
+}
+
+// NumberHasSuffix applies the HasSuffix predicate on the "number" field.
+func NumberHasSuffix(v string) predicate.Card {
+	return predicate.Card(sql.FieldHasSuffix(FieldNumber, v))
+}
+
+// NumberIsNil applies the IsNil predicate on the "number" field.
+func NumberIsNil() predicate.Card {
+	return predicate.Card(sql.FieldIsNull(FieldNumber))
+}
+
+// NumberNotNil applies the NotNil predicate on the "number" field.
+func NumberNotNil() predicate.Card {
+	return predicate.Card(sql.FieldNotNull(FieldNumber))
+}
+
+// NumberEqualFold applies the EqualFold predicate on the "number" field.
+func NumberEqualFold(v string) predicate.Card {
+	return predicate.Card(sql.FieldEqualFold(FieldNumber, v))
+}
+
+// NumberContainsFold applies the ContainsFold predicate on the "number" field.
+func NumberContainsFold(v string) predicate.Card {
+	return predicate.Card(sql.FieldContainsFold(FieldNumber, v))
+}
+
+// OwnerIDEQ applies the EQ predicate on the "owner_id" field.
+func OwnerIDEQ(v int) predicate.Card {
+	return predicate.Card(sql.FieldEQ(FieldOwnerID, v))
+}
+
+// OwnerIDNEQ applies the NEQ predicate on the "owner_id" field.
+func OwnerIDNEQ(v int) predicate.Card {
+	return predicate.Card(sql.FieldNEQ(FieldOwnerID, v))
+}
+
+// OwnerIDIn applies the In predicate on the "owner_id" field.
+func OwnerIDIn(vs ...int) predicate.Card {
+	return predicate.Card(sql.FieldIn(FieldOwnerID, vs...))
+}
+
+// OwnerIDNotIn applies the NotIn predicate on the "owner_id" field.
+func OwnerIDNotIn(vs ...int) predicate.Card {
+	return predicate.Card(sql.FieldNotIn(FieldOwnerID, vs...))
+}
+
+// OwnerIDIsNil applies the IsNil predicate on the "owner_id" field.
+func OwnerIDIsNil() predicate.Card {
+	return predicate.Card(sql.FieldIsNull(FieldOwnerID))
+}
+
+// OwnerIDNotNil applies the NotNil predicate on the "owner_id" field.
+func OwnerIDNotNil() predicate.Card {
+	return predicate.Card(sql.FieldNotNull(FieldOwnerID))
+}
+
+// HasOwner applies the HasEdge predicate on the "owner" edge.
+func HasOwner() predicate.Card {
+	return predicate.Card(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, OwnerTable, OwnerColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasOwnerWith applies the HasEdge predicate on the "owner" edge with a given conditions (other predicates).
+func HasOwnerWith(preds ...predicate.User) predicate.Card {
+	return predicate.Card(func(s *sql.Selector) {
+		step := newOwnerStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Card) predicate.Card {
+	return predicate.Card(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Card) predicate.Card {
+	return predicate.Card(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Card) predicate.Card {
+	return predicate.Card(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/card_create.go

@@ -0,0 +1,228 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// CardCreate is the builder for creating a Card entity.
+type CardCreate struct {
+	config
+	mutation *CardMutation
+	hooks    []Hook
+}
+
+// SetNumber sets the "number" field.
+func (_c *CardCreate) SetNumber(v string) *CardCreate {
+	_c.mutation.SetNumber(v)
+	return _c
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_c *CardCreate) SetNillableNumber(v *string) *CardCreate {
+	if v != nil {
+		_c.SetNumber(*v)
+	}
+	return _c
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_c *CardCreate) SetOwnerID(v int) *CardCreate {
+	_c.mutation.SetOwnerID(v)
+	return _c
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_c *CardCreate) SetNillableOwnerID(v *int) *CardCreate {
+	if v != nil {
+		_c.SetOwnerID(*v)
+	}
+	return _c
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_c *CardCreate) SetOwner(v *User) *CardCreate {
+	return _c.SetOwnerID(v.ID)
+}
+
+// Mutation returns the CardMutation object of the builder.
+func (_c *CardCreate) Mutation() *CardMutation {
+	return _c.mutation
+}
+
+// Save creates the Card in the database.
+func (_c *CardCreate) Save(ctx context.Context) (*Card, error) {
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *CardCreate) SaveX(ctx context.Context) *Card {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *CardCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *CardCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *CardCreate) check() error {
+	return nil
+}
+
+func (_c *CardCreate) sqlSave(ctx context.Context) (*Card, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *CardCreate) createSpec() (*Card, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Card{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(card.Table, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
+	)
+	if value, ok := _c.mutation.Number(); ok {
+		_spec.SetField(card.FieldNumber, field.TypeString, value)
+		_node.Number = value
+	}
+	if nodes := _c.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   card.OwnerTable,
+			Columns: []string{card.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.OwnerID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// CardCreateBulk is the builder for creating many Card entities in bulk.
+type CardCreateBulk struct {
+	config
+	err      error
+	builders []*CardCreate
+}
+
+// Save creates the Card entities in the database.
+func (_c *CardCreateBulk) Save(ctx context.Context) ([]*Card, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Card, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*CardMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *CardCreateBulk) SaveX(ctx context.Context) []*Card {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *CardCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *CardCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/card_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// CardDelete is the builder for deleting a Card entity.
+type CardDelete struct {
+	config
+	hooks    []Hook
+	mutation *CardMutation
+}
+
+// Where appends a list predicates to the CardDelete builder.
+func (_d *CardDelete) Where(ps ...predicate.Card) *CardDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *CardDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *CardDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *CardDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(card.Table, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// CardDeleteOne is the builder for deleting a single Card entity.
+type CardDeleteOne struct {
+	_d *CardDelete
+}
+
+// Where appends a list predicates to the CardDelete builder.
+func (_d *CardDeleteOne) Where(ps ...predicate.Card) *CardDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *CardDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{card.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *CardDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/card_query.go

@@ -0,0 +1,610 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// CardQuery is the builder for querying Card entities.
+type CardQuery struct {
+	config
+	ctx        *QueryContext
+	order      []card.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Card
+	withOwner  *UserQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the CardQuery builder.
+func (_q *CardQuery) Where(ps ...predicate.Card) *CardQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *CardQuery) Limit(limit int) *CardQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *CardQuery) Offset(offset int) *CardQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *CardQuery) Unique(unique bool) *CardQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *CardQuery) Order(o ...card.OrderOption) *CardQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryOwner chains the current query on the "owner" edge.
+func (_q *CardQuery) QueryOwner() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(card.Table, card.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, card.OwnerTable, card.OwnerColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Card entity from the query.
+// Returns a *NotFoundError when no Card was found.
+func (_q *CardQuery) First(ctx context.Context) (*Card, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{card.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *CardQuery) FirstX(ctx context.Context) *Card {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Card ID from the query.
+// Returns a *NotFoundError when no Card ID was found.
+func (_q *CardQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{card.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *CardQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Card entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Card entity is found.
+// Returns a *NotFoundError when no Card entities are found.
+func (_q *CardQuery) Only(ctx context.Context) (*Card, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{card.Label}
+	default:
+		return nil, &NotSingularError{card.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *CardQuery) OnlyX(ctx context.Context) *Card {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Card ID in the query.
+// Returns a *NotSingularError when more than one Card ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *CardQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{card.Label}
+	default:
+		err = &NotSingularError{card.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *CardQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Cards.
+func (_q *CardQuery) All(ctx context.Context) ([]*Card, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Card, *CardQuery]()
+	return withInterceptors[[]*Card](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *CardQuery) AllX(ctx context.Context) []*Card {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Card IDs.
+func (_q *CardQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(card.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *CardQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *CardQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*CardQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *CardQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *CardQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *CardQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the CardQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *CardQuery) Clone() *CardQuery {
+	if _q == nil {
+		return nil
+	}
+	return &CardQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]card.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Card{}, _q.predicates...),
+		withOwner:  _q.withOwner.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithOwner tells the query-builder to eager-load the nodes that are connected to
+// the "owner" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *CardQuery) WithOwner(opts ...func(*UserQuery)) *CardQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withOwner = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Number string `json:"number,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Card.Query().
+//		GroupBy(card.FieldNumber).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *CardQuery) GroupBy(field string, fields ...string) *CardGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &CardGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = card.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Number string `json:"number,omitempty"`
+//	}
+//
+//	client.Card.Query().
+//		Select(card.FieldNumber).
+//		Scan(ctx, &v)
+func (_q *CardQuery) Select(fields ...string) *CardSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &CardSelect{CardQuery: _q}
+	sbuild.label = card.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a CardSelect configured with the given aggregations.
+func (_q *CardQuery) Aggregate(fns ...AggregateFunc) *CardSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *CardQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !card.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *CardQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Card, error) {
+	var (
+		nodes       = []*Card{}
+		_spec       = _q.querySpec()
+		loadedTypes = [1]bool{
+			_q.withOwner != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Card).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Card{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withOwner; query != nil {
+		if err := _q.loadOwner(ctx, query, nodes, nil,
+			func(n *Card, e *User) { n.Edges.Owner = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *CardQuery) loadOwner(ctx context.Context, query *UserQuery, nodes []*Card, init func(*Card), assign func(*Card, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Card)
+	for i := range nodes {
+		fk := nodes[i].OwnerID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "owner_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *CardQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *CardQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(card.Table, card.Columns, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, card.FieldID)
+		for i := range fields {
+			if fields[i] != card.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withOwner != nil {
+			_spec.Node.AddColumnOnce(card.FieldOwnerID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *CardQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(card.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = card.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// CardGroupBy is the group-by builder for Card entities.
+type CardGroupBy struct {
+	selector
+	build *CardQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *CardGroupBy) Aggregate(fns ...AggregateFunc) *CardGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *CardGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*CardQuery, *CardGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *CardGroupBy) sqlScan(ctx context.Context, root *CardQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// CardSelect is the builder for selecting fields of Card entities.
+type CardSelect struct {
+	*CardQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *CardSelect) Aggregate(fns ...AggregateFunc) *CardSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *CardSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*CardQuery, *CardSelect](ctx, _s.CardQuery, _s, _s.inters, v)
+}
+
+func (_s *CardSelect) sqlScan(ctx context.Context, root *CardQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/card_update.go

@@ -0,0 +1,352 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// CardUpdate is the builder for updating Card entities.
+type CardUpdate struct {
+	config
+	hooks    []Hook
+	mutation *CardMutation
+}
+
+// Where appends a list predicates to the CardUpdate builder.
+func (_u *CardUpdate) Where(ps ...predicate.Card) *CardUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetNumber sets the "number" field.
+func (_u *CardUpdate) SetNumber(v string) *CardUpdate {
+	_u.mutation.SetNumber(v)
+	return _u
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_u *CardUpdate) SetNillableNumber(v *string) *CardUpdate {
+	if v != nil {
+		_u.SetNumber(*v)
+	}
+	return _u
+}
+
+// ClearNumber clears the value of the "number" field.
+func (_u *CardUpdate) ClearNumber() *CardUpdate {
+	_u.mutation.ClearNumber()
+	return _u
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_u *CardUpdate) SetOwnerID(v int) *CardUpdate {
+	_u.mutation.SetOwnerID(v)
+	return _u
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_u *CardUpdate) SetNillableOwnerID(v *int) *CardUpdate {
+	if v != nil {
+		_u.SetOwnerID(*v)
+	}
+	return _u
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (_u *CardUpdate) ClearOwnerID() *CardUpdate {
+	_u.mutation.ClearOwnerID()
+	return _u
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_u *CardUpdate) SetOwner(v *User) *CardUpdate {
+	return _u.SetOwnerID(v.ID)
+}
+
+// Mutation returns the CardMutation object of the builder.
+func (_u *CardUpdate) Mutation() *CardMutation {
+	return _u.mutation
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (_u *CardUpdate) ClearOwner() *CardUpdate {
+	_u.mutation.ClearOwner()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *CardUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *CardUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *CardUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *CardUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *CardUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(card.Table, card.Columns, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Number(); ok {
+		_spec.SetField(card.FieldNumber, field.TypeString, value)
+	}
+	if _u.mutation.NumberCleared() {
+		_spec.ClearField(card.FieldNumber, field.TypeString)
+	}
+	if _u.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   card.OwnerTable,
+			Columns: []string{card.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   card.OwnerTable,
+			Columns: []string{card.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{card.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// CardUpdateOne is the builder for updating a single Card entity.
+type CardUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *CardMutation
+}
+
+// SetNumber sets the "number" field.
+func (_u *CardUpdateOne) SetNumber(v string) *CardUpdateOne {
+	_u.mutation.SetNumber(v)
+	return _u
+}
+
+// SetNillableNumber sets the "number" field if the given value is not nil.
+func (_u *CardUpdateOne) SetNillableNumber(v *string) *CardUpdateOne {
+	if v != nil {
+		_u.SetNumber(*v)
+	}
+	return _u
+}
+
+// ClearNumber clears the value of the "number" field.
+func (_u *CardUpdateOne) ClearNumber() *CardUpdateOne {
+	_u.mutation.ClearNumber()
+	return _u
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_u *CardUpdateOne) SetOwnerID(v int) *CardUpdateOne {
+	_u.mutation.SetOwnerID(v)
+	return _u
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_u *CardUpdateOne) SetNillableOwnerID(v *int) *CardUpdateOne {
+	if v != nil {
+		_u.SetOwnerID(*v)
+	}
+	return _u
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (_u *CardUpdateOne) ClearOwnerID() *CardUpdateOne {
+	_u.mutation.ClearOwnerID()
+	return _u
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_u *CardUpdateOne) SetOwner(v *User) *CardUpdateOne {
+	return _u.SetOwnerID(v.ID)
+}
+
+// Mutation returns the CardMutation object of the builder.
+func (_u *CardUpdateOne) Mutation() *CardMutation {
+	return _u.mutation
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (_u *CardUpdateOne) ClearOwner() *CardUpdateOne {
+	_u.mutation.ClearOwner()
+	return _u
+}
+
+// Where appends a list predicates to the CardUpdate builder.
+func (_u *CardUpdateOne) Where(ps ...predicate.Card) *CardUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *CardUpdateOne) Select(field string, fields ...string) *CardUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Card entity.
+func (_u *CardUpdateOne) Save(ctx context.Context) (*Card, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *CardUpdateOne) SaveX(ctx context.Context) *Card {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *CardUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *CardUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *CardUpdateOne) sqlSave(ctx context.Context) (_node *Card, err error) {
+	_spec := sqlgraph.NewUpdateSpec(card.Table, card.Columns, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Card.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, card.FieldID)
+		for _, f := range fields {
+			if !card.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != card.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Number(); ok {
+		_spec.SetField(card.FieldNumber, field.TypeString, value)
+	}
+	if _u.mutation.NumberCleared() {
+		_spec.ClearField(card.FieldNumber, field.TypeString)
+	}
+	if _u.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   card.OwnerTable,
+			Columns: []string{card.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   card.OwnerTable,
+			Columns: []string{card.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Card{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{card.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/ent.go

@@ -0,0 +1,628 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"reflect"
+	"sync"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// ent aliases to avoid import conflicts in user's code.
+type (
+	Op            = ent.Op
+	Hook          = ent.Hook
+	Value         = ent.Value
+	Query         = ent.Query
+	QueryContext  = ent.QueryContext
+	Querier       = ent.Querier
+	QuerierFunc   = ent.QuerierFunc
+	Interceptor   = ent.Interceptor
+	InterceptFunc = ent.InterceptFunc
+	Traverser     = ent.Traverser
+	TraverseFunc  = ent.TraverseFunc
+	Policy        = ent.Policy
+	Mutator       = ent.Mutator
+	Mutation      = ent.Mutation
+	MutateFunc    = ent.MutateFunc
+)
+
+type clientCtxKey struct{}
+
+// FromContext returns a Client stored inside a context, or nil if there isn't one.
+func FromContext(ctx context.Context) *Client {
+	c, _ := ctx.Value(clientCtxKey{}).(*Client)
+	return c
+}
+
+// NewContext returns a new context with the given Client attached.
+func NewContext(parent context.Context, c *Client) context.Context {
+	return context.WithValue(parent, clientCtxKey{}, c)
+}
+
+type txCtxKey struct{}
+
+// TxFromContext returns a Tx stored inside a context, or nil if there isn't one.
+func TxFromContext(ctx context.Context) *Tx {
+	tx, _ := ctx.Value(txCtxKey{}).(*Tx)
+	return tx
+}
+
+// NewTxContext returns a new context with the given Tx attached.
+func NewTxContext(parent context.Context, tx *Tx) context.Context {
+	return context.WithValue(parent, txCtxKey{}, tx)
+}
+
+// OrderFunc applies an ordering on the sql selector.
+// Deprecated: Use Asc/Desc functions or the package builders instead.
+type OrderFunc func(*sql.Selector)
+
+var (
+	initCheck   sync.Once
+	columnCheck sql.ColumnCheck
+)
+
+// checkColumn checks if the column exists in the given table.
+func checkColumn(t, c string) error {
+	initCheck.Do(func() {
+		columnCheck = sql.NewColumnCheck(map[string]func(string) bool{
+			car.Table:      car.ValidColumn,
+			card.Table:     card.ValidColumn,
+			info.Table:     info.ValidColumn,
+			metadata.Table: metadata.ValidColumn,
+			node.Table:     node.ValidColumn,
+			pet.Table:      pet.ValidColumn,
+			post.Table:     post.ValidColumn,
+			rental.Table:   rental.ValidColumn,
+			user.Table:     user.ValidColumn,
+		})
+	})
+	return columnCheck(t, c)
+}
+
+// Asc applies the given fields in ASC order.
+func Asc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Asc(s.C(f)))
+		}
+	}
+}
+
+// Desc applies the given fields in DESC order.
+func Desc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Desc(s.C(f)))
+		}
+	}
+}
+
+// AggregateFunc applies an aggregation step on the group-by traversal/selector.
+type AggregateFunc func(*sql.Selector) string
+
+// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
+//
+//	GroupBy(field1, field2).
+//	Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
+//	Scan(ctx, &v)
+func As(fn AggregateFunc, end string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.As(fn(s), end)
+	}
+}
+
+// Count applies the "count" aggregation function on each group.
+func Count() AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.Count("*")
+	}
+}
+
+// Max applies the "max" aggregation function on the given field of each group.
+func Max(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Max(s.C(field))
+	}
+}
+
+// Mean applies the "mean" aggregation function on the given field of each group.
+func Mean(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Avg(s.C(field))
+	}
+}
+
+// Min applies the "min" aggregation function on the given field of each group.
+func Min(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Min(s.C(field))
+	}
+}
+
+// Sum applies the "sum" aggregation function on the given field of each group.
+func Sum(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Sum(s.C(field))
+	}
+}
+
+// ValidationError returns when validating a field or edge fails.
+type ValidationError struct {
+	Name string // Field or edge name.
+	err  error
+}
+
+// Error implements the error interface.
+func (e *ValidationError) Error() string {
+	return e.err.Error()
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ValidationError) Unwrap() error {
+	return e.err
+}
+
+// IsValidationError returns a boolean indicating whether the error is a validation error.
+func IsValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ValidationError
+	return errors.As(err, &e)
+}
+
+// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
+type NotFoundError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotFoundError) Error() string {
+	return "ent: " + e.label + " not found"
+}
+
+// IsNotFound returns a boolean indicating whether the error is a not found error.
+func IsNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotFoundError
+	return errors.As(err, &e)
+}
+
+// MaskNotFound masks not found error.
+func MaskNotFound(err error) error {
+	if IsNotFound(err) {
+		return nil
+	}
+	return err
+}
+
+// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
+type NotSingularError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotSingularError) Error() string {
+	return "ent: " + e.label + " not singular"
+}
+
+// IsNotSingular returns a boolean indicating whether the error is a not singular error.
+func IsNotSingular(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotSingularError
+	return errors.As(err, &e)
+}
+
+// NotLoadedError returns when trying to get a node that was not loaded by the query.
+type NotLoadedError struct {
+	edge string
+}
+
+// Error implements the error interface.
+func (e *NotLoadedError) Error() string {
+	return "ent: " + e.edge + " edge was not loaded"
+}
+
+// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
+func IsNotLoaded(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotLoadedError
+	return errors.As(err, &e)
+}
+
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
+	msg  string
+	wrap error
+}
+
+// Error implements the error interface.
+func (e ConstraintError) Error() string {
+	return "ent: constraint failed: " + e.msg
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ConstraintError) Unwrap() error {
+	return e.wrap
+}
+
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ConstraintError
+	return errors.As(err, &e)
+}
+
+// selector embedded by the different Select/GroupBy builders.
+type selector struct {
+	label string
+	flds  *[]string
+	fns   []AggregateFunc
+	scan  func(context.Context, any) error
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (s *selector) ScanX(ctx context.Context, v any) {
+	if err := s.scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from a selector. It is only allowed when selecting one field.
+func (s *selector) Strings(ctx context.Context) ([]string, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Strings is not achievable when selecting more than 1 field")
+	}
+	var v []string
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (s *selector) StringsX(ctx context.Context) []string {
+	v, err := s.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a selector. It is only allowed when selecting one field.
+func (s *selector) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = s.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (s *selector) StringX(ctx context.Context) string {
+	v, err := s.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from a selector. It is only allowed when selecting one field.
+func (s *selector) Ints(ctx context.Context) ([]int, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Ints is not achievable when selecting more than 1 field")
+	}
+	var v []int
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (s *selector) IntsX(ctx context.Context) []int {
+	v, err := s.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a selector. It is only allowed when selecting one field.
+func (s *selector) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = s.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (s *selector) IntX(ctx context.Context) int {
+	v, err := s.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64s(ctx context.Context) ([]float64, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Float64s is not achievable when selecting more than 1 field")
+	}
+	var v []float64
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (s *selector) Float64sX(ctx context.Context) []float64 {
+	v, err := s.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = s.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (s *selector) Float64X(ctx context.Context) float64 {
+	v, err := s.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from a selector. It is only allowed when selecting one field.
+func (s *selector) Bools(ctx context.Context) ([]bool, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Bools is not achievable when selecting more than 1 field")
+	}
+	var v []bool
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (s *selector) BoolsX(ctx context.Context) []bool {
+	v, err := s.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a selector. It is only allowed when selecting one field.
+func (s *selector) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = s.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (s *selector) BoolX(ctx context.Context) bool {
+	v, err := s.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// withHooks invokes the builder operation with the given hooks, if any.
+func withHooks[V Value, M any, PM interface {
+	*M
+	Mutation
+}](ctx context.Context, exec func(context.Context) (V, error), mutation PM, hooks []Hook) (value V, err error) {
+	if len(hooks) == 0 {
+		return exec(ctx)
+	}
+	var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+		mutationT, ok := any(m).(PM)
+		if !ok {
+			return nil, fmt.Errorf("unexpected mutation type %T", m)
+		}
+		// Set the mutation to the builder.
+		*mutation = *mutationT
+		return exec(ctx)
+	})
+	for i := len(hooks) - 1; i >= 0; i-- {
+		if hooks[i] == nil {
+			return value, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+		}
+		mut = hooks[i](mut)
+	}
+	v, err := mut.Mutate(ctx, mutation)
+	if err != nil {
+		return value, err
+	}
+	nv, ok := v.(V)
+	if !ok {
+		return value, fmt.Errorf("unexpected node type %T returned from %T", v, mutation)
+	}
+	return nv, nil
+}
+
+// setContextOp returns a new context with the given QueryContext attached (including its op) in case it does not exist.
+func setContextOp(ctx context.Context, qc *QueryContext, op string) context.Context {
+	if ent.QueryFromContext(ctx) == nil {
+		qc.Op = op
+		ctx = ent.NewQueryContext(ctx, qc)
+	}
+	return ctx
+}
+
+func querierAll[V Value, Q interface {
+	sqlAll(context.Context, ...queryHook) (V, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlAll(ctx)
+	})
+}
+
+func querierCount[Q interface {
+	sqlCount(context.Context) (int, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlCount(ctx)
+	})
+}
+
+func withInterceptors[V Value](ctx context.Context, q Query, qr Querier, inters []Interceptor) (v V, err error) {
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	rv, err := qr.Query(ctx, q)
+	if err != nil {
+		return v, err
+	}
+	vt, ok := rv.(V)
+	if !ok {
+		return v, fmt.Errorf("unexpected type %T returned from %T. expected type: %T", vt, q, v)
+	}
+	return vt, nil
+}
+
+func scanWithInterceptors[Q1 ent.Query, Q2 interface {
+	sqlScan(context.Context, Q1, any) error
+}](ctx context.Context, rootQuery Q1, selectOrGroup Q2, inters []Interceptor, v any) error {
+	rv := reflect.ValueOf(v)
+	var qr Querier = QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q1)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		if err := selectOrGroup.sqlScan(ctx, query, v); err != nil {
+			return nil, err
+		}
+		if k := rv.Kind(); k == reflect.Pointer && rv.Elem().CanInterface() {
+			return rv.Elem().Interface(), nil
+		}
+		return v, nil
+	})
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	vv, err := qr.Query(ctx, rootQuery)
+	if err != nil {
+		return err
+	}
+	switch rv2 := reflect.ValueOf(vv); {
+	case rv.IsNil(), rv2.IsNil(), rv.Kind() != reflect.Pointer:
+	case rv.Type() == rv2.Type():
+		rv.Elem().Set(rv2.Elem())
+	case rv.Elem().Type() == rv2.Type():
+		rv.Elem().Set(rv2)
+	}
+	return nil
+}
+
+// queryHook describes an internal hook for the different sqlAll methods.
+type queryHook func(context.Context, *sqlgraph.QuerySpec)

entc/integration/edgefield/ent/enttest/enttest.go

@@ -0,0 +1,88 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package enttest
+
+import (
+	"context"
+
+	"entgo.io/ent/entc/integration/edgefield/ent"
+	// required by schema hooks.
+	_ "entgo.io/ent/entc/integration/edgefield/ent/runtime"
+
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/entc/integration/edgefield/ent/migrate"
+)
+
+type (
+	// TestingT is the interface that is shared between
+	// testing.T and testing.B and used by enttest.
+	TestingT interface {
+		FailNow()
+		Error(...any)
+	}
+
+	// Option configures client creation.
+	Option func(*options)
+
+	options struct {
+		opts        []ent.Option
+		migrateOpts []schema.MigrateOption
+	}
+)
+
+// WithOptions forwards options to client creation.
+func WithOptions(opts ...ent.Option) Option {
+	return func(o *options) {
+		o.opts = append(o.opts, opts...)
+	}
+}
+
+// WithMigrateOptions forwards options to auto migration.
+func WithMigrateOptions(opts ...schema.MigrateOption) Option {
+	return func(o *options) {
+		o.migrateOpts = append(o.migrateOpts, opts...)
+	}
+}
+
+func newOptions(opts []Option) *options {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+	return o
+}
+
+// Open calls ent.Open and auto-run migration.
+func Open(t TestingT, driverName, dataSourceName string, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c, err := ent.Open(driverName, dataSourceName, o.opts...)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	migrateSchema(t, c, o)
+	return c
+}
+
+// NewClient calls ent.NewClient and auto-run migration.
+func NewClient(t TestingT, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c := ent.NewClient(o.opts...)
+	migrateSchema(t, c, o)
+	return c
+}
+func migrateSchema(t TestingT, c *ent.Client, o *options) {
+	tables, err := schema.CopyTables(migrate.Tables)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	if err := migrate.Create(context.Background(), c.Schema, tables, o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+}

entc/integration/edgefield/ent/generate.go

@@ -0,0 +1,7 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package ent
+
+//go:generate go run entgo.io/ent/cmd/ent generate --feature namedges --header "// Copyright 2019-present Facebook Inc. All rights reserved.\n// This source code is licensed under the Apache 2.0 license found\n// in the LICENSE file in the root directory of this source tree.\n\n// Code generated by ent, DO NOT EDIT." ./schema

entc/integration/edgefield/ent/hook/hook.go

@@ -0,0 +1,299 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/entc/integration/edgefield/ent"
+)
+
+// The CarFunc type is an adapter to allow the use of ordinary
+// function as Car mutator.
+type CarFunc func(context.Context, *ent.CarMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f CarFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.CarMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.CarMutation", m)
+}
+
+// The CardFunc type is an adapter to allow the use of ordinary
+// function as Card mutator.
+type CardFunc func(context.Context, *ent.CardMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f CardFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.CardMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.CardMutation", m)
+}
+
+// The InfoFunc type is an adapter to allow the use of ordinary
+// function as Info mutator.
+type InfoFunc func(context.Context, *ent.InfoMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f InfoFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.InfoMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.InfoMutation", m)
+}
+
+// The MetadataFunc type is an adapter to allow the use of ordinary
+// function as Metadata mutator.
+type MetadataFunc func(context.Context, *ent.MetadataMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f MetadataFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.MetadataMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.MetadataMutation", m)
+}
+
+// The NodeFunc type is an adapter to allow the use of ordinary
+// function as Node mutator.
+type NodeFunc func(context.Context, *ent.NodeMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f NodeFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.NodeMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.NodeMutation", m)
+}
+
+// The PetFunc type is an adapter to allow the use of ordinary
+// function as Pet mutator.
+type PetFunc func(context.Context, *ent.PetMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f PetFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.PetMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.PetMutation", m)
+}
+
+// The PostFunc type is an adapter to allow the use of ordinary
+// function as Post mutator.
+type PostFunc func(context.Context, *ent.PostMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f PostFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.PostMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.PostMutation", m)
+}
+
+// The RentalFunc type is an adapter to allow the use of ordinary
+// function as Rental mutator.
+type RentalFunc func(context.Context, *ent.RentalMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f RentalFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.RentalMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.RentalMutation", m)
+}
+
+// The UserFunc type is an adapter to allow the use of ordinary
+// function as User mutator.
+type UserFunc func(context.Context, *ent.UserMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UserFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.UserMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UserMutation", m)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

entc/integration/edgefield/ent/info.go

@@ -0,0 +1,139 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// Info is the model entity for the Info schema.
+type Info struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Content holds the value of the "content" field.
+	Content json.RawMessage `json:"content,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the InfoQuery when eager-loading is set.
+	Edges        InfoEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// InfoEdges holds the relations/edges for other nodes in the graph.
+type InfoEdges struct {
+	// User holds the value of the user edge.
+	User *User `json:"user,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// UserOrErr returns the User value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e InfoEdges) UserOrErr() (*User, error) {
+	if e.User != nil {
+		return e.User, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "user"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Info) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case info.FieldContent:
+			values[i] = new([]byte)
+		case info.FieldID:
+			values[i] = new(sql.NullInt64)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Info fields.
+func (_m *Info) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case info.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case info.FieldContent:
+			if value, ok := values[i].(*[]byte); !ok {
+				return fmt.Errorf("unexpected type %T for field content", values[i])
+			} else if value != nil && len(*value) > 0 {
+				if err := json.Unmarshal(*value, &_m.Content); err != nil {
+					return fmt.Errorf("unmarshal field content: %w", err)
+				}
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Info.
+// This includes values selected through modifiers, order, etc.
+func (_m *Info) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryUser queries the "user" edge of the Info entity.
+func (_m *Info) QueryUser() *UserQuery {
+	return NewInfoClient(_m.config).QueryUser(_m)
+}
+
+// Update returns a builder for updating this Info.
+// Note that you need to call Info.Unwrap() before calling this method if this Info
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Info) Update() *InfoUpdateOne {
+	return NewInfoClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Info entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Info) Unwrap() *Info {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Info is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Info) String() string {
+	var builder strings.Builder
+	builder.WriteString("Info(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("content=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Content))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Infos is a parsable slice of Info.
+type Infos []*Info

entc/integration/edgefield/ent/info/info.go

@@ -0,0 +1,70 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package info
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the info type in the database.
+	Label = "info"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldContent holds the string denoting the content field in the database.
+	FieldContent = "content"
+	// EdgeUser holds the string denoting the user edge name in mutations.
+	EdgeUser = "user"
+	// Table holds the table name of the info in the database.
+	Table = "infos"
+	// UserTable is the table that holds the user relation/edge.
+	UserTable = "infos"
+	// UserInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	UserInverseTable = "users"
+	// UserColumn is the table column denoting the user relation/edge.
+	UserColumn = "id"
+)
+
+// Columns holds all SQL columns for info fields.
+var Columns = []string{
+	FieldID,
+	FieldContent,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// OrderOption defines the ordering options for the Info queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByUserField orders the results by user field.
+func ByUserField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newUserStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newUserStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(UserInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, false, UserTable, UserColumn),
+	)
+}

entc/integration/edgefield/ent/info/mutation.go

@@ -0,0 +1,317 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package info
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Info nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	content       *json.RawMessage
+	appendcontent json.RawMessage
+	clearedFields map[string]struct{}
+	user          *int
+	cleareduser   bool
+	predicates    []predicate.Info
+}
+
+// NewMutation creates a new Mutation for the Info entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Info",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Info {
+	return m.predicates
+}
+
+// SetContent sets the "content" field.
+func (m *Mutation) SetContent(jm json.RawMessage) {
+	m.content = &jm
+	m.appendcontent = nil
+}
+
+// Content returns the value of the "content" field in the mutation.
+func (m *Mutation) Content() (r json.RawMessage, exists bool) {
+	v := m.content
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// AppendContent adds jm to the "content" field.
+func (m *Mutation) AppendContent(jm json.RawMessage) {
+	m.appendcontent = append(m.appendcontent, jm...)
+}
+
+// AppendedContent returns the list of values that were appended to the "content" field in this mutation.
+func (m *Mutation) AppendedContent() (json.RawMessage, bool) {
+	if len(m.appendcontent) == 0 {
+		return nil, false
+	}
+	return m.appendcontent, true
+}
+
+// ResetContent resets all changes to the "content" field.
+func (m *Mutation) ResetContent() {
+	m.content = nil
+	m.appendcontent = nil
+}
+
+// SetUserID sets the "user" edge to the User entity by id.
+func (m *Mutation) SetUserID(id int) {
+	m.user = &id
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (m *Mutation) ClearUser() {
+	m.cleareduser = true
+}
+
+// UserCleared reports if the "user" edge to the User entity was cleared.
+func (m *Mutation) UserCleared() bool {
+	return m.cleareduser
+}
+
+// UserID returns the "user" edge ID in the mutation.
+func (m *Mutation) UserID() (id int, exists bool) {
+	if m.user != nil {
+		return *m.user, true
+	}
+	return
+}
+
+// UserIDs returns the "user" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// UserID instead. It exists only for internal usage by the builders.
+func (m *Mutation) UserIDs() (ids []int) {
+	if id := m.user; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetUser resets all changes to the "user" edge.
+func (m *Mutation) ResetUser() {
+	m.user = nil
+	m.cleareduser = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Info) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Info, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Info).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 1)
+	if m.content != nil {
+		fields = append(fields, FieldContent)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldContent:
+		return m.Content()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Info field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldContent:
+		v, ok := value.(json.RawMessage)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetContent(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Info field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	return nil
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Info numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	return nil
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	return fmt.Errorf("unknown Info nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldContent:
+		m.ResetContent()
+		return nil
+	}
+	return fmt.Errorf("unknown Info field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.user != nil {
+		edges = append(edges, EdgeUser)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeUser:
+		if id := m.user; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.cleareduser {
+		edges = append(edges, EdgeUser)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeUser:
+		return m.cleareduser
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ClearUser()
+		return nil
+	}
+	return fmt.Errorf("unknown Info unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ResetUser()
+		return nil
+	}
+	return fmt.Errorf("unknown Info edge %s", name)
+}

entc/integration/edgefield/ent/info/where.go

@@ -0,0 +1,96 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package info
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Info {
+	return predicate.Info(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Info {
+	return predicate.Info(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Info {
+	return predicate.Info(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Info {
+	return predicate.Info(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Info {
+	return predicate.Info(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Info {
+	return predicate.Info(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Info {
+	return predicate.Info(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Info {
+	return predicate.Info(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Info {
+	return predicate.Info(sql.FieldLTE(FieldID, id))
+}
+
+// HasUser applies the HasEdge predicate on the "user" edge.
+func HasUser() predicate.Info {
+	return predicate.Info(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, UserTable, UserColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasUserWith applies the HasEdge predicate on the "user" edge with a given conditions (other predicates).
+func HasUserWith(preds ...predicate.User) predicate.Info {
+	return predicate.Info(func(s *sql.Selector) {
+		step := newUserStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Info) predicate.Info {
+	return predicate.Info(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Info) predicate.Info {
+	return predicate.Info(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Info) predicate.Info {
+	return predicate.Info(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/info_create.go

@@ -0,0 +1,237 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// InfoCreate is the builder for creating a Info entity.
+type InfoCreate struct {
+	config
+	mutation *InfoMutation
+	hooks    []Hook
+}
+
+// SetContent sets the "content" field.
+func (_c *InfoCreate) SetContent(v json.RawMessage) *InfoCreate {
+	_c.mutation.SetContent(v)
+	return _c
+}
+
+// SetID sets the "id" field.
+func (_c *InfoCreate) SetID(v int) *InfoCreate {
+	_c.mutation.SetID(v)
+	return _c
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_c *InfoCreate) SetUserID(id int) *InfoCreate {
+	_c.mutation.SetUserID(id)
+	return _c
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_c *InfoCreate) SetNillableUserID(id *int) *InfoCreate {
+	if id != nil {
+		_c = _c.SetUserID(*id)
+	}
+	return _c
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_c *InfoCreate) SetUser(v *User) *InfoCreate {
+	return _c.SetUserID(v.ID)
+}
+
+// Mutation returns the InfoMutation object of the builder.
+func (_c *InfoCreate) Mutation() *InfoMutation {
+	return _c.mutation
+}
+
+// Save creates the Info in the database.
+func (_c *InfoCreate) Save(ctx context.Context) (*Info, error) {
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *InfoCreate) SaveX(ctx context.Context) *Info {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *InfoCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *InfoCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *InfoCreate) check() error {
+	if _, ok := _c.mutation.Content(); !ok {
+		return &ValidationError{Name: "content", err: errors.New(`ent: missing required field "Info.content"`)}
+	}
+	return nil
+}
+
+func (_c *InfoCreate) sqlSave(ctx context.Context) (*Info, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != _node.ID {
+		id := _spec.ID.Value.(int64)
+		_node.ID = int(id)
+	}
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *InfoCreate) createSpec() (*Info, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Info{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(info.Table, sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt))
+	)
+	if id, ok := _c.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = id
+	}
+	if value, ok := _c.mutation.Content(); ok {
+		_spec.SetField(info.FieldContent, field.TypeJSON, value)
+		_node.Content = value
+	}
+	if nodes := _c.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   info.UserTable,
+			Columns: []string{info.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.ID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// InfoCreateBulk is the builder for creating many Info entities in bulk.
+type InfoCreateBulk struct {
+	config
+	err      error
+	builders []*InfoCreate
+}
+
+// Save creates the Info entities in the database.
+func (_c *InfoCreateBulk) Save(ctx context.Context) ([]*Info, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Info, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*InfoMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil && nodes[i].ID == 0 {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *InfoCreateBulk) SaveX(ctx context.Context) []*Info {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *InfoCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *InfoCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/info_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// InfoDelete is the builder for deleting a Info entity.
+type InfoDelete struct {
+	config
+	hooks    []Hook
+	mutation *InfoMutation
+}
+
+// Where appends a list predicates to the InfoDelete builder.
+func (_d *InfoDelete) Where(ps ...predicate.Info) *InfoDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *InfoDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *InfoDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *InfoDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(info.Table, sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// InfoDeleteOne is the builder for deleting a single Info entity.
+type InfoDeleteOne struct {
+	_d *InfoDelete
+}
+
+// Where appends a list predicates to the InfoDelete builder.
+func (_d *InfoDeleteOne) Where(ps ...predicate.Info) *InfoDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *InfoDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{info.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *InfoDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/info_query.go

@@ -0,0 +1,607 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// InfoQuery is the builder for querying Info entities.
+type InfoQuery struct {
+	config
+	ctx        *QueryContext
+	order      []info.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Info
+	withUser   *UserQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the InfoQuery builder.
+func (_q *InfoQuery) Where(ps ...predicate.Info) *InfoQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *InfoQuery) Limit(limit int) *InfoQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *InfoQuery) Offset(offset int) *InfoQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *InfoQuery) Unique(unique bool) *InfoQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *InfoQuery) Order(o ...info.OrderOption) *InfoQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryUser chains the current query on the "user" edge.
+func (_q *InfoQuery) QueryUser() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(info.Table, info.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, info.UserTable, info.UserColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Info entity from the query.
+// Returns a *NotFoundError when no Info was found.
+func (_q *InfoQuery) First(ctx context.Context) (*Info, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{info.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *InfoQuery) FirstX(ctx context.Context) *Info {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Info ID from the query.
+// Returns a *NotFoundError when no Info ID was found.
+func (_q *InfoQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{info.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *InfoQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Info entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Info entity is found.
+// Returns a *NotFoundError when no Info entities are found.
+func (_q *InfoQuery) Only(ctx context.Context) (*Info, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{info.Label}
+	default:
+		return nil, &NotSingularError{info.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *InfoQuery) OnlyX(ctx context.Context) *Info {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Info ID in the query.
+// Returns a *NotSingularError when more than one Info ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *InfoQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{info.Label}
+	default:
+		err = &NotSingularError{info.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *InfoQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Infos.
+func (_q *InfoQuery) All(ctx context.Context) ([]*Info, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Info, *InfoQuery]()
+	return withInterceptors[[]*Info](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *InfoQuery) AllX(ctx context.Context) []*Info {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Info IDs.
+func (_q *InfoQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(info.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *InfoQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *InfoQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*InfoQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *InfoQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *InfoQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *InfoQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the InfoQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *InfoQuery) Clone() *InfoQuery {
+	if _q == nil {
+		return nil
+	}
+	return &InfoQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]info.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Info{}, _q.predicates...),
+		withUser:   _q.withUser.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithUser tells the query-builder to eager-load the nodes that are connected to
+// the "user" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *InfoQuery) WithUser(opts ...func(*UserQuery)) *InfoQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withUser = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Content json.RawMessage `json:"content,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Info.Query().
+//		GroupBy(info.FieldContent).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *InfoQuery) GroupBy(field string, fields ...string) *InfoGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &InfoGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = info.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Content json.RawMessage `json:"content,omitempty"`
+//	}
+//
+//	client.Info.Query().
+//		Select(info.FieldContent).
+//		Scan(ctx, &v)
+func (_q *InfoQuery) Select(fields ...string) *InfoSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &InfoSelect{InfoQuery: _q}
+	sbuild.label = info.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a InfoSelect configured with the given aggregations.
+func (_q *InfoQuery) Aggregate(fns ...AggregateFunc) *InfoSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *InfoQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !info.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *InfoQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Info, error) {
+	var (
+		nodes       = []*Info{}
+		_spec       = _q.querySpec()
+		loadedTypes = [1]bool{
+			_q.withUser != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Info).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Info{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withUser; query != nil {
+		if err := _q.loadUser(ctx, query, nodes, nil,
+			func(n *Info, e *User) { n.Edges.User = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *InfoQuery) loadUser(ctx context.Context, query *UserQuery, nodes []*Info, init func(*Info), assign func(*Info, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Info)
+	for i := range nodes {
+		fk := nodes[i].ID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *InfoQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *InfoQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(info.Table, info.Columns, sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, info.FieldID)
+		for i := range fields {
+			if fields[i] != info.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *InfoQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(info.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = info.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// InfoGroupBy is the group-by builder for Info entities.
+type InfoGroupBy struct {
+	selector
+	build *InfoQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *InfoGroupBy) Aggregate(fns ...AggregateFunc) *InfoGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *InfoGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*InfoQuery, *InfoGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *InfoGroupBy) sqlScan(ctx context.Context, root *InfoQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// InfoSelect is the builder for selecting fields of Info entities.
+type InfoSelect struct {
+	*InfoQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *InfoSelect) Aggregate(fns ...AggregateFunc) *InfoSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *InfoSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*InfoQuery, *InfoSelect](ctx, _s.InfoQuery, _s, _s.inters, v)
+}
+
+func (_s *InfoSelect) sqlScan(ctx context.Context, root *InfoQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/info_update.go

@@ -0,0 +1,330 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/dialect/sql/sqljson"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// InfoUpdate is the builder for updating Info entities.
+type InfoUpdate struct {
+	config
+	hooks    []Hook
+	mutation *InfoMutation
+}
+
+// Where appends a list predicates to the InfoUpdate builder.
+func (_u *InfoUpdate) Where(ps ...predicate.Info) *InfoUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetContent sets the "content" field.
+func (_u *InfoUpdate) SetContent(v json.RawMessage) *InfoUpdate {
+	_u.mutation.SetContent(v)
+	return _u
+}
+
+// AppendContent appends value to the "content" field.
+func (_u *InfoUpdate) AppendContent(v json.RawMessage) *InfoUpdate {
+	_u.mutation.AppendContent(v)
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *InfoUpdate) SetUserID(id int) *InfoUpdate {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *InfoUpdate) SetNillableUserID(id *int) *InfoUpdate {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *InfoUpdate) SetUser(v *User) *InfoUpdate {
+	return _u.SetUserID(v.ID)
+}
+
+// Mutation returns the InfoMutation object of the builder.
+func (_u *InfoUpdate) Mutation() *InfoMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *InfoUpdate) ClearUser() *InfoUpdate {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *InfoUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *InfoUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *InfoUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *InfoUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *InfoUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(info.Table, info.Columns, sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Content(); ok {
+		_spec.SetField(info.FieldContent, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedContent(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, info.FieldContent, value)
+		})
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   info.UserTable,
+			Columns: []string{info.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   info.UserTable,
+			Columns: []string{info.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{info.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// InfoUpdateOne is the builder for updating a single Info entity.
+type InfoUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *InfoMutation
+}
+
+// SetContent sets the "content" field.
+func (_u *InfoUpdateOne) SetContent(v json.RawMessage) *InfoUpdateOne {
+	_u.mutation.SetContent(v)
+	return _u
+}
+
+// AppendContent appends value to the "content" field.
+func (_u *InfoUpdateOne) AppendContent(v json.RawMessage) *InfoUpdateOne {
+	_u.mutation.AppendContent(v)
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *InfoUpdateOne) SetUserID(id int) *InfoUpdateOne {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *InfoUpdateOne) SetNillableUserID(id *int) *InfoUpdateOne {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *InfoUpdateOne) SetUser(v *User) *InfoUpdateOne {
+	return _u.SetUserID(v.ID)
+}
+
+// Mutation returns the InfoMutation object of the builder.
+func (_u *InfoUpdateOne) Mutation() *InfoMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *InfoUpdateOne) ClearUser() *InfoUpdateOne {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// Where appends a list predicates to the InfoUpdate builder.
+func (_u *InfoUpdateOne) Where(ps ...predicate.Info) *InfoUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *InfoUpdateOne) Select(field string, fields ...string) *InfoUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Info entity.
+func (_u *InfoUpdateOne) Save(ctx context.Context) (*Info, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *InfoUpdateOne) SaveX(ctx context.Context) *Info {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *InfoUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *InfoUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *InfoUpdateOne) sqlSave(ctx context.Context) (_node *Info, err error) {
+	_spec := sqlgraph.NewUpdateSpec(info.Table, info.Columns, sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Info.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, info.FieldID)
+		for _, f := range fields {
+			if !info.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != info.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Content(); ok {
+		_spec.SetField(info.FieldContent, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedContent(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, info.FieldContent, value)
+		})
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   info.UserTable,
+			Columns: []string{info.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   info.UserTable,
+			Columns: []string{info.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Info{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{info.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/metadata.go

@@ -0,0 +1,204 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// Metadata is the model entity for the Metadata schema.
+type Metadata struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Age holds the value of the "age" field.
+	Age int `json:"age,omitempty"`
+	// ParentID holds the value of the "parent_id" field.
+	ParentID int `json:"parent_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the MetadataQuery when eager-loading is set.
+	Edges        MetadataEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// MetadataEdges holds the relations/edges for other nodes in the graph.
+type MetadataEdges struct {
+	// User holds the value of the user edge.
+	User *User `json:"user,omitempty"`
+	// Children holds the value of the children edge.
+	Children []*Metadata `json:"children,omitempty"`
+	// Parent holds the value of the parent edge.
+	Parent *Metadata `json:"parent,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes   [3]bool
+	namedChildren map[string][]*Metadata
+}
+
+// UserOrErr returns the User value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e MetadataEdges) UserOrErr() (*User, error) {
+	if e.User != nil {
+		return e.User, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "user"}
+}
+
+// ChildrenOrErr returns the Children value or an error if the edge
+// was not loaded in eager-loading.
+func (e MetadataEdges) ChildrenOrErr() ([]*Metadata, error) {
+	if e.loadedTypes[1] {
+		return e.Children, nil
+	}
+	return nil, &NotLoadedError{edge: "children"}
+}
+
+// ParentOrErr returns the Parent value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e MetadataEdges) ParentOrErr() (*Metadata, error) {
+	if e.Parent != nil {
+		return e.Parent, nil
+	} else if e.loadedTypes[2] {
+		return nil, &NotFoundError{label: metadata.Label}
+	}
+	return nil, &NotLoadedError{edge: "parent"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Metadata) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case metadata.FieldID, metadata.FieldAge, metadata.FieldParentID:
+			values[i] = new(sql.NullInt64)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Metadata fields.
+func (_m *Metadata) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case metadata.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case metadata.FieldAge:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field age", values[i])
+			} else if value.Valid {
+				_m.Age = int(value.Int64)
+			}
+		case metadata.FieldParentID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field parent_id", values[i])
+			} else if value.Valid {
+				_m.ParentID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Metadata.
+// This includes values selected through modifiers, order, etc.
+func (_m *Metadata) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryUser queries the "user" edge of the Metadata entity.
+func (_m *Metadata) QueryUser() *UserQuery {
+	return NewMetadataClient(_m.config).QueryUser(_m)
+}
+
+// QueryChildren queries the "children" edge of the Metadata entity.
+func (_m *Metadata) QueryChildren() *MetadataQuery {
+	return NewMetadataClient(_m.config).QueryChildren(_m)
+}
+
+// QueryParent queries the "parent" edge of the Metadata entity.
+func (_m *Metadata) QueryParent() *MetadataQuery {
+	return NewMetadataClient(_m.config).QueryParent(_m)
+}
+
+// Update returns a builder for updating this Metadata.
+// Note that you need to call Metadata.Unwrap() before calling this method if this Metadata
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Metadata) Update() *MetadataUpdateOne {
+	return NewMetadataClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Metadata entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Metadata) Unwrap() *Metadata {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Metadata is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Metadata) String() string {
+	var builder strings.Builder
+	builder.WriteString("Metadata(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("age=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Age))
+	builder.WriteString(", ")
+	builder.WriteString("parent_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.ParentID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// NamedChildren returns the Children named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *Metadata) NamedChildren(name string) ([]*Metadata, error) {
+	if _m.Edges.namedChildren == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedChildren[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *Metadata) appendNamedChildren(name string, edges ...*Metadata) {
+	if _m.Edges.namedChildren == nil {
+		_m.Edges.namedChildren = make(map[string][]*Metadata)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedChildren[name] = []*Metadata{}
+	} else {
+		_m.Edges.namedChildren[name] = append(_m.Edges.namedChildren[name], edges...)
+	}
+}
+
+// MetadataSlice is a parsable slice of Metadata.
+type MetadataSlice []*Metadata

entc/integration/edgefield/ent/metadata/metadata.go

@@ -0,0 +1,135 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package metadata
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the metadata type in the database.
+	Label = "metadata"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldAge holds the string denoting the age field in the database.
+	FieldAge = "age"
+	// FieldParentID holds the string denoting the parent_id field in the database.
+	FieldParentID = "parent_id"
+	// EdgeUser holds the string denoting the user edge name in mutations.
+	EdgeUser = "user"
+	// EdgeChildren holds the string denoting the children edge name in mutations.
+	EdgeChildren = "children"
+	// EdgeParent holds the string denoting the parent edge name in mutations.
+	EdgeParent = "parent"
+	// Table holds the table name of the metadata in the database.
+	Table = "metadata"
+	// UserTable is the table that holds the user relation/edge.
+	UserTable = "metadata"
+	// UserInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	UserInverseTable = "users"
+	// UserColumn is the table column denoting the user relation/edge.
+	UserColumn = "id"
+	// ChildrenTable is the table that holds the children relation/edge.
+	ChildrenTable = "metadata"
+	// ChildrenColumn is the table column denoting the children relation/edge.
+	ChildrenColumn = "parent_id"
+	// ParentTable is the table that holds the parent relation/edge.
+	ParentTable = "metadata"
+	// ParentColumn is the table column denoting the parent relation/edge.
+	ParentColumn = "parent_id"
+)
+
+// Columns holds all SQL columns for metadata fields.
+var Columns = []string{
+	FieldID,
+	FieldAge,
+	FieldParentID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultAge holds the default value on creation for the "age" field.
+	DefaultAge int
+)
+
+// OrderOption defines the ordering options for the Metadata queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByAge orders the results by the age field.
+func ByAge(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldAge, opts...).ToFunc()
+}
+
+// ByParentID orders the results by the parent_id field.
+func ByParentID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldParentID, opts...).ToFunc()
+}
+
+// ByUserField orders the results by user field.
+func ByUserField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newUserStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByChildrenCount orders the results by children count.
+func ByChildrenCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newChildrenStep(), opts...)
+	}
+}
+
+// ByChildren orders the results by children terms.
+func ByChildren(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newChildrenStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+
+// ByParentField orders the results by parent field.
+func ByParentField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newParentStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newUserStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(UserInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, true, UserTable, UserColumn),
+	)
+}
+func newChildrenStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, true, ChildrenTable, ChildrenColumn),
+	)
+}
+func newParentStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, false, ParentTable, ParentColumn),
+	)
+}

entc/integration/edgefield/ent/metadata/mutation.go

@@ -0,0 +1,524 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package metadata
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Metadata nodes in the graph.
+type Mutation struct {
+	op              ent.Op
+	typ             string
+	age             *int
+	addage          *int
+	clearedFields   map[string]struct{}
+	user            *int
+	cleareduser     bool
+	children        map[int]struct{}
+	removedchildren map[int]struct{}
+	clearedchildren bool
+	parent          *int
+	clearedparent   bool
+	predicates      []predicate.Metadata
+}
+
+// NewMutation creates a new Mutation for the Metadata entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Metadata",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Metadata {
+	return m.predicates
+}
+
+// SetAge sets the "age" field.
+func (m *Mutation) SetAge(i int) {
+	m.age = &i
+	m.addage = nil
+}
+
+// Age returns the value of the "age" field in the mutation.
+func (m *Mutation) Age() (r int, exists bool) {
+	v := m.age
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// AddAge adds i to the "age" field.
+func (m *Mutation) AddAge(i int) {
+	if m.addage != nil {
+		*m.addage += i
+	} else {
+		m.addage = &i
+	}
+}
+
+// AddedAge returns the value that was added to the "age" field in this mutation.
+func (m *Mutation) AddedAge() (r int, exists bool) {
+	v := m.addage
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetAge resets all changes to the "age" field.
+func (m *Mutation) ResetAge() {
+	m.age = nil
+	m.addage = nil
+}
+
+// SetParentID sets the "parent_id" field.
+func (m *Mutation) SetParentID(i int) {
+	m.parent = &i
+}
+
+// ParentID returns the value of the "parent_id" field in the mutation.
+func (m *Mutation) ParentID() (r int, exists bool) {
+	v := m.parent
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearParentID clears the value of the "parent_id" field.
+func (m *Mutation) ClearParentID() {
+	m.parent = nil
+	m.clearedFields[FieldParentID] = struct{}{}
+}
+
+// ParentIDCleared returns if the "parent_id" field was cleared in this mutation.
+func (m *Mutation) ParentIDCleared() bool {
+	_, ok := m.clearedFields[FieldParentID]
+	return ok
+}
+
+// ResetParentID resets all changes to the "parent_id" field.
+func (m *Mutation) ResetParentID() {
+	m.parent = nil
+	delete(m.clearedFields, FieldParentID)
+}
+
+// SetUserID sets the "user" edge to the User entity by id.
+func (m *Mutation) SetUserID(id int) {
+	m.user = &id
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (m *Mutation) ClearUser() {
+	m.cleareduser = true
+}
+
+// UserCleared reports if the "user" edge to the User entity was cleared.
+func (m *Mutation) UserCleared() bool {
+	return m.cleareduser
+}
+
+// UserID returns the "user" edge ID in the mutation.
+func (m *Mutation) UserID() (id int, exists bool) {
+	if m.user != nil {
+		return *m.user, true
+	}
+	return
+}
+
+// UserIDs returns the "user" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// UserID instead. It exists only for internal usage by the builders.
+func (m *Mutation) UserIDs() (ids []int) {
+	if id := m.user; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetUser resets all changes to the "user" edge.
+func (m *Mutation) ResetUser() {
+	m.user = nil
+	m.cleareduser = false
+}
+
+// AddChildIDs adds the "children" edge to the Metadata entity by ids.
+func (m *Mutation) AddChildIDs(ids ...int) {
+	if m.children == nil {
+		m.children = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.children[ids[i]] = struct{}{}
+	}
+}
+
+// ClearChildren clears the "children" edge to the Metadata entity.
+func (m *Mutation) ClearChildren() {
+	m.clearedchildren = true
+}
+
+// ChildrenCleared reports if the "children" edge to the Metadata entity was cleared.
+func (m *Mutation) ChildrenCleared() bool {
+	return m.clearedchildren
+}
+
+// RemoveChildIDs removes the "children" edge to the Metadata entity by IDs.
+func (m *Mutation) RemoveChildIDs(ids ...int) {
+	if m.removedchildren == nil {
+		m.removedchildren = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.children, ids[i])
+		m.removedchildren[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedChildren returns the removed IDs of the "children" edge to the Metadata entity.
+func (m *Mutation) RemovedChildrenIDs() (ids []int) {
+	for id := range m.removedchildren {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ChildrenIDs returns the "children" edge IDs in the mutation.
+func (m *Mutation) ChildrenIDs() (ids []int) {
+	for id := range m.children {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetChildren resets all changes to the "children" edge.
+func (m *Mutation) ResetChildren() {
+	m.children = nil
+	m.clearedchildren = false
+	m.removedchildren = nil
+}
+
+// ClearParent clears the "parent" edge to the Metadata entity.
+func (m *Mutation) ClearParent() {
+	m.clearedparent = true
+	m.clearedFields[FieldParentID] = struct{}{}
+}
+
+// ParentCleared reports if the "parent" edge to the Metadata entity was cleared.
+func (m *Mutation) ParentCleared() bool {
+	return m.ParentIDCleared() || m.clearedparent
+}
+
+// ParentIDs returns the "parent" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// ParentID instead. It exists only for internal usage by the builders.
+func (m *Mutation) ParentIDs() (ids []int) {
+	if id := m.parent; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetParent resets all changes to the "parent" edge.
+func (m *Mutation) ResetParent() {
+	m.parent = nil
+	m.clearedparent = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Metadata) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Metadata, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Metadata).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.age != nil {
+		fields = append(fields, FieldAge)
+	}
+	if m.parent != nil {
+		fields = append(fields, FieldParentID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldAge:
+		return m.Age()
+	case FieldParentID:
+		return m.ParentID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Metadata field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldAge:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetAge(v)
+		return nil
+	case FieldParentID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetParentID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	if m.addage != nil {
+		fields = append(fields, FieldAge)
+	}
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	case FieldAge:
+		return m.AddedAge()
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	case FieldAge:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.AddAge(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldParentID) {
+		fields = append(fields, FieldParentID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldParentID:
+		m.ClearParentID()
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldAge:
+		m.ResetAge()
+		return nil
+	case FieldParentID:
+		m.ResetParentID()
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 3)
+	if m.user != nil {
+		edges = append(edges, EdgeUser)
+	}
+	if m.children != nil {
+		edges = append(edges, EdgeChildren)
+	}
+	if m.parent != nil {
+		edges = append(edges, EdgeParent)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeUser:
+		if id := m.user; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeChildren:
+		ids := make([]ent.Value, 0, len(m.children))
+		for id := range m.children {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeParent:
+		if id := m.parent; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 3)
+	if m.removedchildren != nil {
+		edges = append(edges, EdgeChildren)
+	}
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeChildren:
+		ids := make([]ent.Value, 0, len(m.removedchildren))
+		for id := range m.removedchildren {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 3)
+	if m.cleareduser {
+		edges = append(edges, EdgeUser)
+	}
+	if m.clearedchildren {
+		edges = append(edges, EdgeChildren)
+	}
+	if m.clearedparent {
+		edges = append(edges, EdgeParent)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeUser:
+		return m.cleareduser
+	case EdgeChildren:
+		return m.clearedchildren
+	case EdgeParent:
+		return m.clearedparent
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ClearUser()
+		return nil
+	case EdgeParent:
+		m.ClearParent()
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ResetUser()
+		return nil
+	case EdgeChildren:
+		m.ResetChildren()
+		return nil
+	case EdgeParent:
+		m.ResetParent()
+		return nil
+	}
+	return fmt.Errorf("unknown Metadata edge %s", name)
+}

entc/integration/edgefield/ent/metadata/where.go

@@ -0,0 +1,222 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package metadata
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldLTE(FieldID, id))
+}
+
+// Age applies equality check predicate on the "age" field. It's identical to AgeEQ.
+func Age(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldAge, v))
+}
+
+// ParentID applies equality check predicate on the "parent_id" field. It's identical to ParentIDEQ.
+func ParentID(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldParentID, v))
+}
+
+// AgeEQ applies the EQ predicate on the "age" field.
+func AgeEQ(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldAge, v))
+}
+
+// AgeNEQ applies the NEQ predicate on the "age" field.
+func AgeNEQ(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNEQ(FieldAge, v))
+}
+
+// AgeIn applies the In predicate on the "age" field.
+func AgeIn(vs ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldIn(FieldAge, vs...))
+}
+
+// AgeNotIn applies the NotIn predicate on the "age" field.
+func AgeNotIn(vs ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNotIn(FieldAge, vs...))
+}
+
+// AgeGT applies the GT predicate on the "age" field.
+func AgeGT(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldGT(FieldAge, v))
+}
+
+// AgeGTE applies the GTE predicate on the "age" field.
+func AgeGTE(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldGTE(FieldAge, v))
+}
+
+// AgeLT applies the LT predicate on the "age" field.
+func AgeLT(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldLT(FieldAge, v))
+}
+
+// AgeLTE applies the LTE predicate on the "age" field.
+func AgeLTE(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldLTE(FieldAge, v))
+}
+
+// ParentIDEQ applies the EQ predicate on the "parent_id" field.
+func ParentIDEQ(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldEQ(FieldParentID, v))
+}
+
+// ParentIDNEQ applies the NEQ predicate on the "parent_id" field.
+func ParentIDNEQ(v int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNEQ(FieldParentID, v))
+}
+
+// ParentIDIn applies the In predicate on the "parent_id" field.
+func ParentIDIn(vs ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldIn(FieldParentID, vs...))
+}
+
+// ParentIDNotIn applies the NotIn predicate on the "parent_id" field.
+func ParentIDNotIn(vs ...int) predicate.Metadata {
+	return predicate.Metadata(sql.FieldNotIn(FieldParentID, vs...))
+}
+
+// ParentIDIsNil applies the IsNil predicate on the "parent_id" field.
+func ParentIDIsNil() predicate.Metadata {
+	return predicate.Metadata(sql.FieldIsNull(FieldParentID))
+}
+
+// ParentIDNotNil applies the NotNil predicate on the "parent_id" field.
+func ParentIDNotNil() predicate.Metadata {
+	return predicate.Metadata(sql.FieldNotNull(FieldParentID))
+}
+
+// HasUser applies the HasEdge predicate on the "user" edge.
+func HasUser() predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, UserTable, UserColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasUserWith applies the HasEdge predicate on the "user" edge with a given conditions (other predicates).
+func HasUserWith(preds ...predicate.User) predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := newUserStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasChildren applies the HasEdge predicate on the "children" edge.
+func HasChildren() predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, true, ChildrenTable, ChildrenColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasChildrenWith applies the HasEdge predicate on the "children" edge with a given conditions (other predicates).
+func HasChildrenWith(preds ...predicate.Metadata) predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := newChildrenStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasParent applies the HasEdge predicate on the "parent" edge.
+func HasParent() predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, ParentTable, ParentColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasParentWith applies the HasEdge predicate on the "parent" edge with a given conditions (other predicates).
+func HasParentWith(preds ...predicate.Metadata) predicate.Metadata {
+	return predicate.Metadata(func(s *sql.Selector) {
+		step := newParentStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Metadata) predicate.Metadata {
+	return predicate.Metadata(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Metadata) predicate.Metadata {
+	return predicate.Metadata(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Metadata) predicate.Metadata {
+	return predicate.Metadata(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/metadata_create.go

@@ -0,0 +1,321 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// MetadataCreate is the builder for creating a Metadata entity.
+type MetadataCreate struct {
+	config
+	mutation *MetadataMutation
+	hooks    []Hook
+}
+
+// SetAge sets the "age" field.
+func (_c *MetadataCreate) SetAge(v int) *MetadataCreate {
+	_c.mutation.SetAge(v)
+	return _c
+}
+
+// SetNillableAge sets the "age" field if the given value is not nil.
+func (_c *MetadataCreate) SetNillableAge(v *int) *MetadataCreate {
+	if v != nil {
+		_c.SetAge(*v)
+	}
+	return _c
+}
+
+// SetParentID sets the "parent_id" field.
+func (_c *MetadataCreate) SetParentID(v int) *MetadataCreate {
+	_c.mutation.SetParentID(v)
+	return _c
+}
+
+// SetNillableParentID sets the "parent_id" field if the given value is not nil.
+func (_c *MetadataCreate) SetNillableParentID(v *int) *MetadataCreate {
+	if v != nil {
+		_c.SetParentID(*v)
+	}
+	return _c
+}
+
+// SetID sets the "id" field.
+func (_c *MetadataCreate) SetID(v int) *MetadataCreate {
+	_c.mutation.SetID(v)
+	return _c
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_c *MetadataCreate) SetUserID(id int) *MetadataCreate {
+	_c.mutation.SetUserID(id)
+	return _c
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_c *MetadataCreate) SetNillableUserID(id *int) *MetadataCreate {
+	if id != nil {
+		_c = _c.SetUserID(*id)
+	}
+	return _c
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_c *MetadataCreate) SetUser(v *User) *MetadataCreate {
+	return _c.SetUserID(v.ID)
+}
+
+// AddChildIDs adds the "children" edge to the Metadata entity by IDs.
+func (_c *MetadataCreate) AddChildIDs(ids ...int) *MetadataCreate {
+	_c.mutation.AddChildIDs(ids...)
+	return _c
+}
+
+// AddChildren adds the "children" edges to the Metadata entity.
+func (_c *MetadataCreate) AddChildren(v ...*Metadata) *MetadataCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddChildIDs(ids...)
+}
+
+// SetParent sets the "parent" edge to the Metadata entity.
+func (_c *MetadataCreate) SetParent(v *Metadata) *MetadataCreate {
+	return _c.SetParentID(v.ID)
+}
+
+// Mutation returns the MetadataMutation object of the builder.
+func (_c *MetadataCreate) Mutation() *MetadataMutation {
+	return _c.mutation
+}
+
+// Save creates the Metadata in the database.
+func (_c *MetadataCreate) Save(ctx context.Context) (*Metadata, error) {
+	_c.defaults()
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *MetadataCreate) SaveX(ctx context.Context) *Metadata {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *MetadataCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *MetadataCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *MetadataCreate) defaults() {
+	if _, ok := _c.mutation.Age(); !ok {
+		v := metadata.DefaultAge
+		_c.mutation.SetAge(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *MetadataCreate) check() error {
+	if _, ok := _c.mutation.Age(); !ok {
+		return &ValidationError{Name: "age", err: errors.New(`ent: missing required field "Metadata.age"`)}
+	}
+	return nil
+}
+
+func (_c *MetadataCreate) sqlSave(ctx context.Context) (*Metadata, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != _node.ID {
+		id := _spec.ID.Value.(int64)
+		_node.ID = int(id)
+	}
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *MetadataCreate) createSpec() (*Metadata, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Metadata{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(metadata.Table, sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt))
+	)
+	if id, ok := _c.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = id
+	}
+	if value, ok := _c.mutation.Age(); ok {
+		_spec.SetField(metadata.FieldAge, field.TypeInt, value)
+		_node.Age = value
+	}
+	if nodes := _c.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   metadata.UserTable,
+			Columns: []string{metadata.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.ID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.ChildrenIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.ParentIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   metadata.ParentTable,
+			Columns: []string{metadata.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.ParentID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// MetadataCreateBulk is the builder for creating many Metadata entities in bulk.
+type MetadataCreateBulk struct {
+	config
+	err      error
+	builders []*MetadataCreate
+}
+
+// Save creates the Metadata entities in the database.
+func (_c *MetadataCreateBulk) Save(ctx context.Context) ([]*Metadata, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Metadata, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*MetadataMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil && nodes[i].ID == 0 {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *MetadataCreateBulk) SaveX(ctx context.Context) []*Metadata {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *MetadataCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *MetadataCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/metadata_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// MetadataDelete is the builder for deleting a Metadata entity.
+type MetadataDelete struct {
+	config
+	hooks    []Hook
+	mutation *MetadataMutation
+}
+
+// Where appends a list predicates to the MetadataDelete builder.
+func (_d *MetadataDelete) Where(ps ...predicate.Metadata) *MetadataDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *MetadataDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *MetadataDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *MetadataDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(metadata.Table, sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// MetadataDeleteOne is the builder for deleting a single Metadata entity.
+type MetadataDeleteOne struct {
+	_d *MetadataDelete
+}
+
+// Where appends a list predicates to the MetadataDelete builder.
+func (_d *MetadataDeleteOne) Where(ps ...predicate.Metadata) *MetadataDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *MetadataDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{metadata.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *MetadataDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/metadata_query.go

@@ -0,0 +1,777 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"database/sql/driver"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// MetadataQuery is the builder for querying Metadata entities.
+type MetadataQuery struct {
+	config
+	ctx               *QueryContext
+	order             []metadata.OrderOption
+	inters            []Interceptor
+	predicates        []predicate.Metadata
+	withUser          *UserQuery
+	withChildren      *MetadataQuery
+	withParent        *MetadataQuery
+	withNamedChildren map[string]*MetadataQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the MetadataQuery builder.
+func (_q *MetadataQuery) Where(ps ...predicate.Metadata) *MetadataQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *MetadataQuery) Limit(limit int) *MetadataQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *MetadataQuery) Offset(offset int) *MetadataQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *MetadataQuery) Unique(unique bool) *MetadataQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *MetadataQuery) Order(o ...metadata.OrderOption) *MetadataQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryUser chains the current query on the "user" edge.
+func (_q *MetadataQuery) QueryUser() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(metadata.Table, metadata.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, metadata.UserTable, metadata.UserColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// QueryChildren chains the current query on the "children" edge.
+func (_q *MetadataQuery) QueryChildren() *MetadataQuery {
+	query := (&MetadataClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(metadata.Table, metadata.FieldID, selector),
+			sqlgraph.To(metadata.Table, metadata.FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, true, metadata.ChildrenTable, metadata.ChildrenColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// QueryParent chains the current query on the "parent" edge.
+func (_q *MetadataQuery) QueryParent() *MetadataQuery {
+	query := (&MetadataClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(metadata.Table, metadata.FieldID, selector),
+			sqlgraph.To(metadata.Table, metadata.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, metadata.ParentTable, metadata.ParentColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Metadata entity from the query.
+// Returns a *NotFoundError when no Metadata was found.
+func (_q *MetadataQuery) First(ctx context.Context) (*Metadata, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{metadata.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *MetadataQuery) FirstX(ctx context.Context) *Metadata {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Metadata ID from the query.
+// Returns a *NotFoundError when no Metadata ID was found.
+func (_q *MetadataQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{metadata.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *MetadataQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Metadata entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Metadata entity is found.
+// Returns a *NotFoundError when no Metadata entities are found.
+func (_q *MetadataQuery) Only(ctx context.Context) (*Metadata, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{metadata.Label}
+	default:
+		return nil, &NotSingularError{metadata.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *MetadataQuery) OnlyX(ctx context.Context) *Metadata {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Metadata ID in the query.
+// Returns a *NotSingularError when more than one Metadata ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *MetadataQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{metadata.Label}
+	default:
+		err = &NotSingularError{metadata.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *MetadataQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of MetadataSlice.
+func (_q *MetadataQuery) All(ctx context.Context) ([]*Metadata, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Metadata, *MetadataQuery]()
+	return withInterceptors[[]*Metadata](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *MetadataQuery) AllX(ctx context.Context) []*Metadata {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Metadata IDs.
+func (_q *MetadataQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(metadata.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *MetadataQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *MetadataQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*MetadataQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *MetadataQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *MetadataQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *MetadataQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the MetadataQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *MetadataQuery) Clone() *MetadataQuery {
+	if _q == nil {
+		return nil
+	}
+	return &MetadataQuery{
+		config:       _q.config,
+		ctx:          _q.ctx.Clone(),
+		order:        append([]metadata.OrderOption{}, _q.order...),
+		inters:       append([]Interceptor{}, _q.inters...),
+		predicates:   append([]predicate.Metadata{}, _q.predicates...),
+		withUser:     _q.withUser.Clone(),
+		withChildren: _q.withChildren.Clone(),
+		withParent:   _q.withParent.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithUser tells the query-builder to eager-load the nodes that are connected to
+// the "user" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *MetadataQuery) WithUser(opts ...func(*UserQuery)) *MetadataQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withUser = query
+	return _q
+}
+
+// WithChildren tells the query-builder to eager-load the nodes that are connected to
+// the "children" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *MetadataQuery) WithChildren(opts ...func(*MetadataQuery)) *MetadataQuery {
+	query := (&MetadataClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withChildren = query
+	return _q
+}
+
+// WithParent tells the query-builder to eager-load the nodes that are connected to
+// the "parent" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *MetadataQuery) WithParent(opts ...func(*MetadataQuery)) *MetadataQuery {
+	query := (&MetadataClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withParent = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Age int `json:"age,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Metadata.Query().
+//		GroupBy(metadata.FieldAge).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *MetadataQuery) GroupBy(field string, fields ...string) *MetadataGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &MetadataGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = metadata.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Age int `json:"age,omitempty"`
+//	}
+//
+//	client.Metadata.Query().
+//		Select(metadata.FieldAge).
+//		Scan(ctx, &v)
+func (_q *MetadataQuery) Select(fields ...string) *MetadataSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &MetadataSelect{MetadataQuery: _q}
+	sbuild.label = metadata.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a MetadataSelect configured with the given aggregations.
+func (_q *MetadataQuery) Aggregate(fns ...AggregateFunc) *MetadataSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *MetadataQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !metadata.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *MetadataQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Metadata, error) {
+	var (
+		nodes       = []*Metadata{}
+		_spec       = _q.querySpec()
+		loadedTypes = [3]bool{
+			_q.withUser != nil,
+			_q.withChildren != nil,
+			_q.withParent != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Metadata).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Metadata{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withUser; query != nil {
+		if err := _q.loadUser(ctx, query, nodes, nil,
+			func(n *Metadata, e *User) { n.Edges.User = e }); err != nil {
+			return nil, err
+		}
+	}
+	if query := _q.withChildren; query != nil {
+		if err := _q.loadChildren(ctx, query, nodes,
+			func(n *Metadata) { n.Edges.Children = []*Metadata{} },
+			func(n *Metadata, e *Metadata) { n.Edges.Children = append(n.Edges.Children, e) }); err != nil {
+			return nil, err
+		}
+	}
+	if query := _q.withParent; query != nil {
+		if err := _q.loadParent(ctx, query, nodes, nil,
+			func(n *Metadata, e *Metadata) { n.Edges.Parent = e }); err != nil {
+			return nil, err
+		}
+	}
+	for name, query := range _q.withNamedChildren {
+		if err := _q.loadChildren(ctx, query, nodes,
+			func(n *Metadata) { n.appendNamedChildren(name) },
+			func(n *Metadata, e *Metadata) { n.appendNamedChildren(name, e) }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *MetadataQuery) loadUser(ctx context.Context, query *UserQuery, nodes []*Metadata, init func(*Metadata), assign func(*Metadata, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Metadata)
+	for i := range nodes {
+		fk := nodes[i].ID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+func (_q *MetadataQuery) loadChildren(ctx context.Context, query *MetadataQuery, nodes []*Metadata, init func(*Metadata), assign func(*Metadata, *Metadata)) error {
+	fks := make([]driver.Value, 0, len(nodes))
+	nodeids := make(map[int]*Metadata)
+	for i := range nodes {
+		fks = append(fks, nodes[i].ID)
+		nodeids[nodes[i].ID] = nodes[i]
+		if init != nil {
+			init(nodes[i])
+		}
+	}
+	if len(query.ctx.Fields) > 0 {
+		query.ctx.AppendFieldOnce(metadata.FieldParentID)
+	}
+	query.Where(predicate.Metadata(func(s *sql.Selector) {
+		s.Where(sql.InValues(s.C(metadata.ChildrenColumn), fks...))
+	}))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		fk := n.ParentID
+		node, ok := nodeids[fk]
+		if !ok {
+			return fmt.Errorf(`unexpected referenced foreign-key "parent_id" returned %v for node %v`, fk, n.ID)
+		}
+		assign(node, n)
+	}
+	return nil
+}
+func (_q *MetadataQuery) loadParent(ctx context.Context, query *MetadataQuery, nodes []*Metadata, init func(*Metadata), assign func(*Metadata, *Metadata)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Metadata)
+	for i := range nodes {
+		fk := nodes[i].ParentID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(metadata.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "parent_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *MetadataQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *MetadataQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(metadata.Table, metadata.Columns, sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, metadata.FieldID)
+		for i := range fields {
+			if fields[i] != metadata.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withParent != nil {
+			_spec.Node.AddColumnOnce(metadata.FieldParentID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *MetadataQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(metadata.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = metadata.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// WithNamedChildren tells the query-builder to eager-load the nodes that are connected to the "children"
+// edge with the given name. The optional arguments are used to configure the query builder of the edge.
+func (_q *MetadataQuery) WithNamedChildren(name string, opts ...func(*MetadataQuery)) *MetadataQuery {
+	query := (&MetadataClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	if _q.withNamedChildren == nil {
+		_q.withNamedChildren = make(map[string]*MetadataQuery)
+	}
+	_q.withNamedChildren[name] = query
+	return _q
+}
+
+// MetadataGroupBy is the group-by builder for Metadata entities.
+type MetadataGroupBy struct {
+	selector
+	build *MetadataQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *MetadataGroupBy) Aggregate(fns ...AggregateFunc) *MetadataGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *MetadataGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*MetadataQuery, *MetadataGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *MetadataGroupBy) sqlScan(ctx context.Context, root *MetadataQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// MetadataSelect is the builder for selecting fields of Metadata entities.
+type MetadataSelect struct {
+	*MetadataQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *MetadataSelect) Aggregate(fns ...AggregateFunc) *MetadataSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *MetadataSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*MetadataQuery, *MetadataSelect](ctx, _s.MetadataQuery, _s, _s.inters, v)
+}
+
+func (_s *MetadataSelect) sqlScan(ctx context.Context, root *MetadataQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/metadata_update.go

@@ -0,0 +1,624 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// MetadataUpdate is the builder for updating Metadata entities.
+type MetadataUpdate struct {
+	config
+	hooks    []Hook
+	mutation *MetadataMutation
+}
+
+// Where appends a list predicates to the MetadataUpdate builder.
+func (_u *MetadataUpdate) Where(ps ...predicate.Metadata) *MetadataUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetAge sets the "age" field.
+func (_u *MetadataUpdate) SetAge(v int) *MetadataUpdate {
+	_u.mutation.ResetAge()
+	_u.mutation.SetAge(v)
+	return _u
+}
+
+// SetNillableAge sets the "age" field if the given value is not nil.
+func (_u *MetadataUpdate) SetNillableAge(v *int) *MetadataUpdate {
+	if v != nil {
+		_u.SetAge(*v)
+	}
+	return _u
+}
+
+// AddAge adds value to the "age" field.
+func (_u *MetadataUpdate) AddAge(v int) *MetadataUpdate {
+	_u.mutation.AddAge(v)
+	return _u
+}
+
+// SetParentID sets the "parent_id" field.
+func (_u *MetadataUpdate) SetParentID(v int) *MetadataUpdate {
+	_u.mutation.SetParentID(v)
+	return _u
+}
+
+// SetNillableParentID sets the "parent_id" field if the given value is not nil.
+func (_u *MetadataUpdate) SetNillableParentID(v *int) *MetadataUpdate {
+	if v != nil {
+		_u.SetParentID(*v)
+	}
+	return _u
+}
+
+// ClearParentID clears the value of the "parent_id" field.
+func (_u *MetadataUpdate) ClearParentID() *MetadataUpdate {
+	_u.mutation.ClearParentID()
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *MetadataUpdate) SetUserID(id int) *MetadataUpdate {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *MetadataUpdate) SetNillableUserID(id *int) *MetadataUpdate {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *MetadataUpdate) SetUser(v *User) *MetadataUpdate {
+	return _u.SetUserID(v.ID)
+}
+
+// AddChildIDs adds the "children" edge to the Metadata entity by IDs.
+func (_u *MetadataUpdate) AddChildIDs(ids ...int) *MetadataUpdate {
+	_u.mutation.AddChildIDs(ids...)
+	return _u
+}
+
+// AddChildren adds the "children" edges to the Metadata entity.
+func (_u *MetadataUpdate) AddChildren(v ...*Metadata) *MetadataUpdate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.AddChildIDs(ids...)
+}
+
+// SetParent sets the "parent" edge to the Metadata entity.
+func (_u *MetadataUpdate) SetParent(v *Metadata) *MetadataUpdate {
+	return _u.SetParentID(v.ID)
+}
+
+// Mutation returns the MetadataMutation object of the builder.
+func (_u *MetadataUpdate) Mutation() *MetadataMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *MetadataUpdate) ClearUser() *MetadataUpdate {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// ClearChildren clears all "children" edges to the Metadata entity.
+func (_u *MetadataUpdate) ClearChildren() *MetadataUpdate {
+	_u.mutation.ClearChildren()
+	return _u
+}
+
+// RemoveChildIDs removes the "children" edge to Metadata entities by IDs.
+func (_u *MetadataUpdate) RemoveChildIDs(ids ...int) *MetadataUpdate {
+	_u.mutation.RemoveChildIDs(ids...)
+	return _u
+}
+
+// RemoveChildren removes "children" edges to Metadata entities.
+func (_u *MetadataUpdate) RemoveChildren(v ...*Metadata) *MetadataUpdate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.RemoveChildIDs(ids...)
+}
+
+// ClearParent clears the "parent" edge to the Metadata entity.
+func (_u *MetadataUpdate) ClearParent() *MetadataUpdate {
+	_u.mutation.ClearParent()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *MetadataUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *MetadataUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *MetadataUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *MetadataUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *MetadataUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(metadata.Table, metadata.Columns, sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Age(); ok {
+		_spec.SetField(metadata.FieldAge, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedAge(); ok {
+		_spec.AddField(metadata.FieldAge, field.TypeInt, value)
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   metadata.UserTable,
+			Columns: []string{metadata.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   metadata.UserTable,
+			Columns: []string{metadata.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.ChildrenCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RemovedChildrenIDs(); len(nodes) > 0 && !_u.mutation.ChildrenCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.ChildrenIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.ParentCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   metadata.ParentTable,
+			Columns: []string{metadata.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.ParentIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   metadata.ParentTable,
+			Columns: []string{metadata.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{metadata.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// MetadataUpdateOne is the builder for updating a single Metadata entity.
+type MetadataUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *MetadataMutation
+}
+
+// SetAge sets the "age" field.
+func (_u *MetadataUpdateOne) SetAge(v int) *MetadataUpdateOne {
+	_u.mutation.ResetAge()
+	_u.mutation.SetAge(v)
+	return _u
+}
+
+// SetNillableAge sets the "age" field if the given value is not nil.
+func (_u *MetadataUpdateOne) SetNillableAge(v *int) *MetadataUpdateOne {
+	if v != nil {
+		_u.SetAge(*v)
+	}
+	return _u
+}
+
+// AddAge adds value to the "age" field.
+func (_u *MetadataUpdateOne) AddAge(v int) *MetadataUpdateOne {
+	_u.mutation.AddAge(v)
+	return _u
+}
+
+// SetParentID sets the "parent_id" field.
+func (_u *MetadataUpdateOne) SetParentID(v int) *MetadataUpdateOne {
+	_u.mutation.SetParentID(v)
+	return _u
+}
+
+// SetNillableParentID sets the "parent_id" field if the given value is not nil.
+func (_u *MetadataUpdateOne) SetNillableParentID(v *int) *MetadataUpdateOne {
+	if v != nil {
+		_u.SetParentID(*v)
+	}
+	return _u
+}
+
+// ClearParentID clears the value of the "parent_id" field.
+func (_u *MetadataUpdateOne) ClearParentID() *MetadataUpdateOne {
+	_u.mutation.ClearParentID()
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *MetadataUpdateOne) SetUserID(id int) *MetadataUpdateOne {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *MetadataUpdateOne) SetNillableUserID(id *int) *MetadataUpdateOne {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *MetadataUpdateOne) SetUser(v *User) *MetadataUpdateOne {
+	return _u.SetUserID(v.ID)
+}
+
+// AddChildIDs adds the "children" edge to the Metadata entity by IDs.
+func (_u *MetadataUpdateOne) AddChildIDs(ids ...int) *MetadataUpdateOne {
+	_u.mutation.AddChildIDs(ids...)
+	return _u
+}
+
+// AddChildren adds the "children" edges to the Metadata entity.
+func (_u *MetadataUpdateOne) AddChildren(v ...*Metadata) *MetadataUpdateOne {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.AddChildIDs(ids...)
+}
+
+// SetParent sets the "parent" edge to the Metadata entity.
+func (_u *MetadataUpdateOne) SetParent(v *Metadata) *MetadataUpdateOne {
+	return _u.SetParentID(v.ID)
+}
+
+// Mutation returns the MetadataMutation object of the builder.
+func (_u *MetadataUpdateOne) Mutation() *MetadataMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *MetadataUpdateOne) ClearUser() *MetadataUpdateOne {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// ClearChildren clears all "children" edges to the Metadata entity.
+func (_u *MetadataUpdateOne) ClearChildren() *MetadataUpdateOne {
+	_u.mutation.ClearChildren()
+	return _u
+}
+
+// RemoveChildIDs removes the "children" edge to Metadata entities by IDs.
+func (_u *MetadataUpdateOne) RemoveChildIDs(ids ...int) *MetadataUpdateOne {
+	_u.mutation.RemoveChildIDs(ids...)
+	return _u
+}
+
+// RemoveChildren removes "children" edges to Metadata entities.
+func (_u *MetadataUpdateOne) RemoveChildren(v ...*Metadata) *MetadataUpdateOne {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _u.RemoveChildIDs(ids...)
+}
+
+// ClearParent clears the "parent" edge to the Metadata entity.
+func (_u *MetadataUpdateOne) ClearParent() *MetadataUpdateOne {
+	_u.mutation.ClearParent()
+	return _u
+}
+
+// Where appends a list predicates to the MetadataUpdate builder.
+func (_u *MetadataUpdateOne) Where(ps ...predicate.Metadata) *MetadataUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *MetadataUpdateOne) Select(field string, fields ...string) *MetadataUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Metadata entity.
+func (_u *MetadataUpdateOne) Save(ctx context.Context) (*Metadata, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *MetadataUpdateOne) SaveX(ctx context.Context) *Metadata {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *MetadataUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *MetadataUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *MetadataUpdateOne) sqlSave(ctx context.Context) (_node *Metadata, err error) {
+	_spec := sqlgraph.NewUpdateSpec(metadata.Table, metadata.Columns, sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Metadata.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, metadata.FieldID)
+		for _, f := range fields {
+			if !metadata.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != metadata.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Age(); ok {
+		_spec.SetField(metadata.FieldAge, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedAge(); ok {
+		_spec.AddField(metadata.FieldAge, field.TypeInt, value)
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   metadata.UserTable,
+			Columns: []string{metadata.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   metadata.UserTable,
+			Columns: []string{metadata.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.ChildrenCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.RemovedChildrenIDs(); len(nodes) > 0 && !_u.mutation.ChildrenCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.ChildrenIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   metadata.ChildrenTable,
+			Columns: []string{metadata.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.ParentCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   metadata.ParentTable,
+			Columns: []string{metadata.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.ParentIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   metadata.ParentTable,
+			Columns: []string{metadata.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Metadata{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{metadata.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/migrate/migrate.go

@@ -0,0 +1,68 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	return Create(ctx, s, Tables, opts...)
+}
+
+// Create creates all table resources using the given schema driver.
+func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+//	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+//	}
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
+}

entc/integration/edgefield/ent/migrate/schema.go

@@ -0,0 +1,250 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// CarsColumns holds the columns for the "cars" table.
+	CarsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeUUID},
+		{Name: "number", Type: field.TypeString, Nullable: true},
+	}
+	// CarsTable holds the schema information for the "cars" table.
+	CarsTable = &schema.Table{
+		Name:       "cars",
+		Columns:    CarsColumns,
+		PrimaryKey: []*schema.Column{CarsColumns[0]},
+	}
+	// CardsColumns holds the columns for the "cards" table.
+	CardsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "number", Type: field.TypeString, Nullable: true},
+		{Name: "owner_id", Type: field.TypeInt, Unique: true, Nullable: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+	}
+	// CardsTable holds the schema information for the "cards" table.
+	CardsTable = &schema.Table{
+		Name:       "cards",
+		Columns:    CardsColumns,
+		PrimaryKey: []*schema.Column{CardsColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "cards_users_card",
+				Columns:    []*schema.Column{CardsColumns[2]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "card_number_owner_id",
+				Unique:  false,
+				Columns: []*schema.Column{CardsColumns[1], CardsColumns[2]},
+			},
+		},
+	}
+	// InfosColumns holds the columns for the "infos" table.
+	InfosColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "content", Type: field.TypeJSON},
+	}
+	// InfosTable holds the schema information for the "infos" table.
+	InfosTable = &schema.Table{
+		Name:       "infos",
+		Columns:    InfosColumns,
+		PrimaryKey: []*schema.Column{InfosColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "infos_users_user",
+				Columns:    []*schema.Column{InfosColumns[0]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+	}
+	// MetadataColumns holds the columns for the "metadata" table.
+	MetadataColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "age", Type: field.TypeInt, Default: 0},
+		{Name: "parent_id", Type: field.TypeInt, Nullable: true},
+	}
+	// MetadataTable holds the schema information for the "metadata" table.
+	MetadataTable = &schema.Table{
+		Name:       "metadata",
+		Columns:    MetadataColumns,
+		PrimaryKey: []*schema.Column{MetadataColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "metadata_metadata_parent",
+				Columns:    []*schema.Column{MetadataColumns[2]},
+				RefColumns: []*schema.Column{MetadataColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+			{
+				Symbol:     "metadata_users_metadata",
+				Columns:    []*schema.Column{MetadataColumns[0]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+	}
+	// NodesColumns holds the columns for the "nodes" table.
+	NodesColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "value", Type: field.TypeInt, Default: 0},
+		{Name: "prev_id", Type: field.TypeInt, Unique: true, Nullable: true},
+	}
+	// NodesTable holds the schema information for the "nodes" table.
+	NodesTable = &schema.Table{
+		Name:       "nodes",
+		Columns:    NodesColumns,
+		PrimaryKey: []*schema.Column{NodesColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "nodes_nodes_next",
+				Columns:    []*schema.Column{NodesColumns[2]},
+				RefColumns: []*schema.Column{NodesColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+	}
+	// PetsColumns holds the columns for the "pets" table.
+	PetsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "owner_id", Type: field.TypeInt, Nullable: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+	}
+	// PetsTable holds the schema information for the "pets" table.
+	PetsTable = &schema.Table{
+		Name:       "pets",
+		Columns:    PetsColumns,
+		PrimaryKey: []*schema.Column{PetsColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "pets_users_pets",
+				Columns:    []*schema.Column{PetsColumns[1]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+	}
+	// PostsColumns holds the columns for the "posts" table.
+	PostsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "text", Type: field.TypeString},
+		{Name: "author_id", Type: field.TypeInt, Nullable: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+	}
+	// PostsTable holds the schema information for the "posts" table.
+	PostsTable = &schema.Table{
+		Name:       "posts",
+		Columns:    PostsColumns,
+		PrimaryKey: []*schema.Column{PostsColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "posts_users_author",
+				Columns:    []*schema.Column{PostsColumns[2]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "post_author_id_text",
+				Unique:  false,
+				Columns: []*schema.Column{PostsColumns[2], PostsColumns[1]},
+			},
+		},
+	}
+	// RentalsColumns holds the columns for the "rentals" table.
+	RentalsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "date", Type: field.TypeTime},
+		{Name: "car_id", Type: field.TypeUUID},
+		{Name: "user_id", Type: field.TypeInt, SchemaType: map[string]string{"sqlite3": "integer"}},
+	}
+	// RentalsTable holds the schema information for the "rentals" table.
+	RentalsTable = &schema.Table{
+		Name:       "rentals",
+		Columns:    RentalsColumns,
+		PrimaryKey: []*schema.Column{RentalsColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "rentals_cars_rentals",
+				Columns:    []*schema.Column{RentalsColumns[2]},
+				RefColumns: []*schema.Column{CarsColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+			{
+				Symbol:     "rentals_users_rentals",
+				Columns:    []*schema.Column{RentalsColumns[3]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "rental_car_id_user_id",
+				Unique:  true,
+				Columns: []*schema.Column{RentalsColumns[2], RentalsColumns[3]},
+			},
+		},
+	}
+	// UsersColumns holds the columns for the "users" table.
+	UsersColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+		{Name: "parent_id", Type: field.TypeInt, Nullable: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+		{Name: "spouse_id", Type: field.TypeInt, Unique: true, Nullable: true, SchemaType: map[string]string{"sqlite3": "integer"}},
+	}
+	// UsersTable holds the schema information for the "users" table.
+	UsersTable = &schema.Table{
+		Name:       "users",
+		Columns:    UsersColumns,
+		PrimaryKey: []*schema.Column{UsersColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "users_users_children",
+				Columns:    []*schema.Column{UsersColumns[1]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+			{
+				Symbol:     "users_users_spouse",
+				Columns:    []*schema.Column{UsersColumns[2]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		CarsTable,
+		CardsTable,
+		InfosTable,
+		MetadataTable,
+		NodesTable,
+		PetsTable,
+		PostsTable,
+		RentalsTable,
+		UsersTable,
+	}
+)
+
+func init() {
+	CardsTable.ForeignKeys[0].RefTable = UsersTable
+	InfosTable.ForeignKeys[0].RefTable = UsersTable
+	MetadataTable.ForeignKeys[0].RefTable = MetadataTable
+	MetadataTable.ForeignKeys[1].RefTable = UsersTable
+	NodesTable.ForeignKeys[0].RefTable = NodesTable
+	PetsTable.ForeignKeys[0].RefTable = UsersTable
+	PostsTable.ForeignKeys[0].RefTable = UsersTable
+	RentalsTable.ForeignKeys[0].RefTable = CarsTable
+	RentalsTable.ForeignKeys[1].RefTable = UsersTable
+	UsersTable.ForeignKeys[0].RefTable = UsersTable
+	UsersTable.ForeignKeys[1].RefTable = UsersTable
+}

entc/integration/edgefield/ent/node.go

@@ -0,0 +1,162 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+)
+
+// Node is the model entity for the Node schema.
+type Node struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Value holds the value of the "value" field.
+	Value int `json:"value,omitempty"`
+	// PrevID holds the value of the "prev_id" field.
+	PrevID int `json:"prev_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the NodeQuery when eager-loading is set.
+	Edges        NodeEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// NodeEdges holds the relations/edges for other nodes in the graph.
+type NodeEdges struct {
+	// Prev holds the value of the prev edge.
+	Prev *Node `json:"prev,omitempty"`
+	// Next holds the value of the next edge.
+	Next *Node `json:"next,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [2]bool
+}
+
+// PrevOrErr returns the Prev value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e NodeEdges) PrevOrErr() (*Node, error) {
+	if e.Prev != nil {
+		return e.Prev, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: node.Label}
+	}
+	return nil, &NotLoadedError{edge: "prev"}
+}
+
+// NextOrErr returns the Next value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e NodeEdges) NextOrErr() (*Node, error) {
+	if e.Next != nil {
+		return e.Next, nil
+	} else if e.loadedTypes[1] {
+		return nil, &NotFoundError{label: node.Label}
+	}
+	return nil, &NotLoadedError{edge: "next"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Node) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case node.FieldID, node.FieldValue, node.FieldPrevID:
+			values[i] = new(sql.NullInt64)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Node fields.
+func (_m *Node) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case node.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case node.FieldValue:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field value", values[i])
+			} else if value.Valid {
+				_m.Value = int(value.Int64)
+			}
+		case node.FieldPrevID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field prev_id", values[i])
+			} else if value.Valid {
+				_m.PrevID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// GetValue returns the ent.Value that was dynamically selected and assigned to the Node.
+// This includes values selected through modifiers, order, etc.
+func (_m *Node) GetValue(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryPrev queries the "prev" edge of the Node entity.
+func (_m *Node) QueryPrev() *NodeQuery {
+	return NewNodeClient(_m.config).QueryPrev(_m)
+}
+
+// QueryNext queries the "next" edge of the Node entity.
+func (_m *Node) QueryNext() *NodeQuery {
+	return NewNodeClient(_m.config).QueryNext(_m)
+}
+
+// Update returns a builder for updating this Node.
+// Note that you need to call Node.Unwrap() before calling this method if this Node
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Node) Update() *NodeUpdateOne {
+	return NewNodeClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Node entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Node) Unwrap() *Node {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Node is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Node) String() string {
+	var builder strings.Builder
+	builder.WriteString("Node(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("value=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Value))
+	builder.WriteString(", ")
+	builder.WriteString("prev_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.PrevID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Nodes is a parsable slice of Node.
+type Nodes []*Node

entc/integration/edgefield/ent/node/mutation.go

@@ -0,0 +1,439 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package node
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Node nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	value         *int
+	addvalue      *int
+	clearedFields map[string]struct{}
+	prev          *int
+	clearedprev   bool
+	next          *int
+	clearednext   bool
+	predicates    []predicate.Node
+}
+
+// NewMutation creates a new Mutation for the Node entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Node",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Node {
+	return m.predicates
+}
+
+// SetValue sets the "value" field.
+func (m *Mutation) SetValue(i int) {
+	m.value = &i
+	m.addvalue = nil
+}
+
+// Value returns the value of the "value" field in the mutation.
+func (m *Mutation) Value() (r int, exists bool) {
+	v := m.value
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// AddValue adds i to the "value" field.
+func (m *Mutation) AddValue(i int) {
+	if m.addvalue != nil {
+		*m.addvalue += i
+	} else {
+		m.addvalue = &i
+	}
+}
+
+// AddedValue returns the value that was added to the "value" field in this mutation.
+func (m *Mutation) AddedValue() (r int, exists bool) {
+	v := m.addvalue
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetValue resets all changes to the "value" field.
+func (m *Mutation) ResetValue() {
+	m.value = nil
+	m.addvalue = nil
+}
+
+// SetPrevID sets the "prev_id" field.
+func (m *Mutation) SetPrevID(i int) {
+	m.prev = &i
+}
+
+// PrevID returns the value of the "prev_id" field in the mutation.
+func (m *Mutation) PrevID() (r int, exists bool) {
+	v := m.prev
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearPrevID clears the value of the "prev_id" field.
+func (m *Mutation) ClearPrevID() {
+	m.prev = nil
+	m.clearedFields[FieldPrevID] = struct{}{}
+}
+
+// PrevIDCleared returns if the "prev_id" field was cleared in this mutation.
+func (m *Mutation) PrevIDCleared() bool {
+	_, ok := m.clearedFields[FieldPrevID]
+	return ok
+}
+
+// ResetPrevID resets all changes to the "prev_id" field.
+func (m *Mutation) ResetPrevID() {
+	m.prev = nil
+	delete(m.clearedFields, FieldPrevID)
+}
+
+// ClearPrev clears the "prev" edge to the Node entity.
+func (m *Mutation) ClearPrev() {
+	m.clearedprev = true
+	m.clearedFields[FieldPrevID] = struct{}{}
+}
+
+// PrevCleared reports if the "prev" edge to the Node entity was cleared.
+func (m *Mutation) PrevCleared() bool {
+	return m.PrevIDCleared() || m.clearedprev
+}
+
+// PrevIDs returns the "prev" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// PrevID instead. It exists only for internal usage by the builders.
+func (m *Mutation) PrevIDs() (ids []int) {
+	if id := m.prev; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetPrev resets all changes to the "prev" edge.
+func (m *Mutation) ResetPrev() {
+	m.prev = nil
+	m.clearedprev = false
+}
+
+// SetNextID sets the "next" edge to the Node entity by id.
+func (m *Mutation) SetNextID(id int) {
+	m.next = &id
+}
+
+// ClearNext clears the "next" edge to the Node entity.
+func (m *Mutation) ClearNext() {
+	m.clearednext = true
+}
+
+// NextCleared reports if the "next" edge to the Node entity was cleared.
+func (m *Mutation) NextCleared() bool {
+	return m.clearednext
+}
+
+// NextID returns the "next" edge ID in the mutation.
+func (m *Mutation) NextID() (id int, exists bool) {
+	if m.next != nil {
+		return *m.next, true
+	}
+	return
+}
+
+// NextIDs returns the "next" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// NextID instead. It exists only for internal usage by the builders.
+func (m *Mutation) NextIDs() (ids []int) {
+	if id := m.next; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetNext resets all changes to the "next" edge.
+func (m *Mutation) ResetNext() {
+	m.next = nil
+	m.clearednext = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Node) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Node, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Node).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.value != nil {
+		fields = append(fields, FieldValue)
+	}
+	if m.prev != nil {
+		fields = append(fields, FieldPrevID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldValue:
+		return m.Value()
+	case FieldPrevID:
+		return m.PrevID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Node field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldValue:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetValue(v)
+		return nil
+	case FieldPrevID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetPrevID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Node field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	if m.addvalue != nil {
+		fields = append(fields, FieldValue)
+	}
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	case FieldValue:
+		return m.AddedValue()
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	case FieldValue:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.AddValue(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Node numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldPrevID) {
+		fields = append(fields, FieldPrevID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldPrevID:
+		m.ClearPrevID()
+		return nil
+	}
+	return fmt.Errorf("unknown Node nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldValue:
+		m.ResetValue()
+		return nil
+	case FieldPrevID:
+		m.ResetPrevID()
+		return nil
+	}
+	return fmt.Errorf("unknown Node field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 2)
+	if m.prev != nil {
+		edges = append(edges, EdgePrev)
+	}
+	if m.next != nil {
+		edges = append(edges, EdgeNext)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgePrev:
+		if id := m.prev; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeNext:
+		if id := m.next; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 2)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 2)
+	if m.clearedprev {
+		edges = append(edges, EdgePrev)
+	}
+	if m.clearednext {
+		edges = append(edges, EdgeNext)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgePrev:
+		return m.clearedprev
+	case EdgeNext:
+		return m.clearednext
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgePrev:
+		m.ClearPrev()
+		return nil
+	case EdgeNext:
+		m.ClearNext()
+		return nil
+	}
+	return fmt.Errorf("unknown Node unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgePrev:
+		m.ResetPrev()
+		return nil
+	case EdgeNext:
+		m.ResetNext()
+		return nil
+	}
+	return fmt.Errorf("unknown Node edge %s", name)
+}

entc/integration/edgefield/ent/node/node.go

@@ -0,0 +1,105 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package node
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the node type in the database.
+	Label = "node"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldValue holds the string denoting the value field in the database.
+	FieldValue = "value"
+	// FieldPrevID holds the string denoting the prev_id field in the database.
+	FieldPrevID = "prev_id"
+	// EdgePrev holds the string denoting the prev edge name in mutations.
+	EdgePrev = "prev"
+	// EdgeNext holds the string denoting the next edge name in mutations.
+	EdgeNext = "next"
+	// Table holds the table name of the node in the database.
+	Table = "nodes"
+	// PrevTable is the table that holds the prev relation/edge.
+	PrevTable = "nodes"
+	// PrevColumn is the table column denoting the prev relation/edge.
+	PrevColumn = "prev_id"
+	// NextTable is the table that holds the next relation/edge.
+	NextTable = "nodes"
+	// NextColumn is the table column denoting the next relation/edge.
+	NextColumn = "prev_id"
+)
+
+// Columns holds all SQL columns for node fields.
+var Columns = []string{
+	FieldID,
+	FieldValue,
+	FieldPrevID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultValue holds the default value on creation for the "value" field.
+	DefaultValue int
+)
+
+// OrderOption defines the ordering options for the Node queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByValue orders the results by the value field.
+func ByValue(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldValue, opts...).ToFunc()
+}
+
+// ByPrevID orders the results by the prev_id field.
+func ByPrevID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPrevID, opts...).ToFunc()
+}
+
+// ByPrevField orders the results by prev field.
+func ByPrevField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newPrevStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByNextField orders the results by next field.
+func ByNextField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newNextStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newPrevStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, true, PrevTable, PrevColumn),
+	)
+}
+func newNextStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, false, NextTable, NextColumn),
+	)
+}

entc/integration/edgefield/ent/node/where.go

@@ -0,0 +1,199 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package node
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Node {
+	return predicate.Node(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Node {
+	return predicate.Node(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Node {
+	return predicate.Node(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Node {
+	return predicate.Node(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Node {
+	return predicate.Node(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Node {
+	return predicate.Node(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Node {
+	return predicate.Node(sql.FieldLTE(FieldID, id))
+}
+
+// Value applies equality check predicate on the "value" field. It's identical to ValueEQ.
+func Value(v int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldValue, v))
+}
+
+// PrevID applies equality check predicate on the "prev_id" field. It's identical to PrevIDEQ.
+func PrevID(v int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldPrevID, v))
+}
+
+// ValueEQ applies the EQ predicate on the "value" field.
+func ValueEQ(v int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldValue, v))
+}
+
+// ValueNEQ applies the NEQ predicate on the "value" field.
+func ValueNEQ(v int) predicate.Node {
+	return predicate.Node(sql.FieldNEQ(FieldValue, v))
+}
+
+// ValueIn applies the In predicate on the "value" field.
+func ValueIn(vs ...int) predicate.Node {
+	return predicate.Node(sql.FieldIn(FieldValue, vs...))
+}
+
+// ValueNotIn applies the NotIn predicate on the "value" field.
+func ValueNotIn(vs ...int) predicate.Node {
+	return predicate.Node(sql.FieldNotIn(FieldValue, vs...))
+}
+
+// ValueGT applies the GT predicate on the "value" field.
+func ValueGT(v int) predicate.Node {
+	return predicate.Node(sql.FieldGT(FieldValue, v))
+}
+
+// ValueGTE applies the GTE predicate on the "value" field.
+func ValueGTE(v int) predicate.Node {
+	return predicate.Node(sql.FieldGTE(FieldValue, v))
+}
+
+// ValueLT applies the LT predicate on the "value" field.
+func ValueLT(v int) predicate.Node {
+	return predicate.Node(sql.FieldLT(FieldValue, v))
+}
+
+// ValueLTE applies the LTE predicate on the "value" field.
+func ValueLTE(v int) predicate.Node {
+	return predicate.Node(sql.FieldLTE(FieldValue, v))
+}
+
+// PrevIDEQ applies the EQ predicate on the "prev_id" field.
+func PrevIDEQ(v int) predicate.Node {
+	return predicate.Node(sql.FieldEQ(FieldPrevID, v))
+}
+
+// PrevIDNEQ applies the NEQ predicate on the "prev_id" field.
+func PrevIDNEQ(v int) predicate.Node {
+	return predicate.Node(sql.FieldNEQ(FieldPrevID, v))
+}
+
+// PrevIDIn applies the In predicate on the "prev_id" field.
+func PrevIDIn(vs ...int) predicate.Node {
+	return predicate.Node(sql.FieldIn(FieldPrevID, vs...))
+}
+
+// PrevIDNotIn applies the NotIn predicate on the "prev_id" field.
+func PrevIDNotIn(vs ...int) predicate.Node {
+	return predicate.Node(sql.FieldNotIn(FieldPrevID, vs...))
+}
+
+// PrevIDIsNil applies the IsNil predicate on the "prev_id" field.
+func PrevIDIsNil() predicate.Node {
+	return predicate.Node(sql.FieldIsNull(FieldPrevID))
+}
+
+// PrevIDNotNil applies the NotNil predicate on the "prev_id" field.
+func PrevIDNotNil() predicate.Node {
+	return predicate.Node(sql.FieldNotNull(FieldPrevID))
+}
+
+// HasPrev applies the HasEdge predicate on the "prev" edge.
+func HasPrev() predicate.Node {
+	return predicate.Node(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, PrevTable, PrevColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasPrevWith applies the HasEdge predicate on the "prev" edge with a given conditions (other predicates).
+func HasPrevWith(preds ...predicate.Node) predicate.Node {
+	return predicate.Node(func(s *sql.Selector) {
+		step := newPrevStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasNext applies the HasEdge predicate on the "next" edge.
+func HasNext() predicate.Node {
+	return predicate.Node(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, false, NextTable, NextColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasNextWith applies the HasEdge predicate on the "next" edge with a given conditions (other predicates).
+func HasNextWith(preds ...predicate.Node) predicate.Node {
+	return predicate.Node(func(s *sql.Selector) {
+		step := newNextStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Node) predicate.Node {
+	return predicate.Node(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Node) predicate.Node {
+	return predicate.Node(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Node) predicate.Node {
+	return predicate.Node(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/node_create.go

@@ -0,0 +1,276 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/schema/field"
+)
+
+// NodeCreate is the builder for creating a Node entity.
+type NodeCreate struct {
+	config
+	mutation *NodeMutation
+	hooks    []Hook
+}
+
+// SetValue sets the "value" field.
+func (_c *NodeCreate) SetValue(v int) *NodeCreate {
+	_c.mutation.SetValue(v)
+	return _c
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_c *NodeCreate) SetNillableValue(v *int) *NodeCreate {
+	if v != nil {
+		_c.SetValue(*v)
+	}
+	return _c
+}
+
+// SetPrevID sets the "prev_id" field.
+func (_c *NodeCreate) SetPrevID(v int) *NodeCreate {
+	_c.mutation.SetPrevID(v)
+	return _c
+}
+
+// SetNillablePrevID sets the "prev_id" field if the given value is not nil.
+func (_c *NodeCreate) SetNillablePrevID(v *int) *NodeCreate {
+	if v != nil {
+		_c.SetPrevID(*v)
+	}
+	return _c
+}
+
+// SetPrev sets the "prev" edge to the Node entity.
+func (_c *NodeCreate) SetPrev(v *Node) *NodeCreate {
+	return _c.SetPrevID(v.ID)
+}
+
+// SetNextID sets the "next" edge to the Node entity by ID.
+func (_c *NodeCreate) SetNextID(id int) *NodeCreate {
+	_c.mutation.SetNextID(id)
+	return _c
+}
+
+// SetNillableNextID sets the "next" edge to the Node entity by ID if the given value is not nil.
+func (_c *NodeCreate) SetNillableNextID(id *int) *NodeCreate {
+	if id != nil {
+		_c = _c.SetNextID(*id)
+	}
+	return _c
+}
+
+// SetNext sets the "next" edge to the Node entity.
+func (_c *NodeCreate) SetNext(v *Node) *NodeCreate {
+	return _c.SetNextID(v.ID)
+}
+
+// Mutation returns the NodeMutation object of the builder.
+func (_c *NodeCreate) Mutation() *NodeMutation {
+	return _c.mutation
+}
+
+// Save creates the Node in the database.
+func (_c *NodeCreate) Save(ctx context.Context) (*Node, error) {
+	_c.defaults()
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *NodeCreate) SaveX(ctx context.Context) *Node {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *NodeCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *NodeCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *NodeCreate) defaults() {
+	if _, ok := _c.mutation.Value(); !ok {
+		v := node.DefaultValue
+		_c.mutation.SetValue(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *NodeCreate) check() error {
+	if _, ok := _c.mutation.Value(); !ok {
+		return &ValidationError{Name: "value", err: errors.New(`ent: missing required field "Node.value"`)}
+	}
+	return nil
+}
+
+func (_c *NodeCreate) sqlSave(ctx context.Context) (*Node, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *NodeCreate) createSpec() (*Node, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Node{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(node.Table, sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt))
+	)
+	if value, ok := _c.mutation.Value(); ok {
+		_spec.SetField(node.FieldValue, field.TypeInt, value)
+		_node.Value = value
+	}
+	if nodes := _c.mutation.PrevIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   node.PrevTable,
+			Columns: []string{node.PrevColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.PrevID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.NextIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   node.NextTable,
+			Columns: []string{node.NextColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// NodeCreateBulk is the builder for creating many Node entities in bulk.
+type NodeCreateBulk struct {
+	config
+	err      error
+	builders []*NodeCreate
+}
+
+// Save creates the Node entities in the database.
+func (_c *NodeCreateBulk) Save(ctx context.Context) ([]*Node, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Node, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*NodeMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *NodeCreateBulk) SaveX(ctx context.Context) []*Node {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *NodeCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *NodeCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/node_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// NodeDelete is the builder for deleting a Node entity.
+type NodeDelete struct {
+	config
+	hooks    []Hook
+	mutation *NodeMutation
+}
+
+// Where appends a list predicates to the NodeDelete builder.
+func (_d *NodeDelete) Where(ps ...predicate.Node) *NodeDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *NodeDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *NodeDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *NodeDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(node.Table, sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// NodeDeleteOne is the builder for deleting a single Node entity.
+type NodeDeleteOne struct {
+	_d *NodeDelete
+}
+
+// Where appends a list predicates to the NodeDelete builder.
+func (_d *NodeDeleteOne) Where(ps ...predicate.Node) *NodeDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *NodeDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{node.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *NodeDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/node_query.go

@@ -0,0 +1,679 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"database/sql/driver"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// NodeQuery is the builder for querying Node entities.
+type NodeQuery struct {
+	config
+	ctx        *QueryContext
+	order      []node.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Node
+	withPrev   *NodeQuery
+	withNext   *NodeQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the NodeQuery builder.
+func (_q *NodeQuery) Where(ps ...predicate.Node) *NodeQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *NodeQuery) Limit(limit int) *NodeQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *NodeQuery) Offset(offset int) *NodeQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *NodeQuery) Unique(unique bool) *NodeQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *NodeQuery) Order(o ...node.OrderOption) *NodeQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryPrev chains the current query on the "prev" edge.
+func (_q *NodeQuery) QueryPrev() *NodeQuery {
+	query := (&NodeClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(node.Table, node.FieldID, selector),
+			sqlgraph.To(node.Table, node.FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, true, node.PrevTable, node.PrevColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// QueryNext chains the current query on the "next" edge.
+func (_q *NodeQuery) QueryNext() *NodeQuery {
+	query := (&NodeClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(node.Table, node.FieldID, selector),
+			sqlgraph.To(node.Table, node.FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, false, node.NextTable, node.NextColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Node entity from the query.
+// Returns a *NotFoundError when no Node was found.
+func (_q *NodeQuery) First(ctx context.Context) (*Node, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{node.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *NodeQuery) FirstX(ctx context.Context) *Node {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Node ID from the query.
+// Returns a *NotFoundError when no Node ID was found.
+func (_q *NodeQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{node.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *NodeQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Node entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Node entity is found.
+// Returns a *NotFoundError when no Node entities are found.
+func (_q *NodeQuery) Only(ctx context.Context) (*Node, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{node.Label}
+	default:
+		return nil, &NotSingularError{node.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *NodeQuery) OnlyX(ctx context.Context) *Node {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Node ID in the query.
+// Returns a *NotSingularError when more than one Node ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *NodeQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{node.Label}
+	default:
+		err = &NotSingularError{node.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *NodeQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Nodes.
+func (_q *NodeQuery) All(ctx context.Context) ([]*Node, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Node, *NodeQuery]()
+	return withInterceptors[[]*Node](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *NodeQuery) AllX(ctx context.Context) []*Node {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Node IDs.
+func (_q *NodeQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(node.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *NodeQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *NodeQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*NodeQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *NodeQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *NodeQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *NodeQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the NodeQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *NodeQuery) Clone() *NodeQuery {
+	if _q == nil {
+		return nil
+	}
+	return &NodeQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]node.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Node{}, _q.predicates...),
+		withPrev:   _q.withPrev.Clone(),
+		withNext:   _q.withNext.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithPrev tells the query-builder to eager-load the nodes that are connected to
+// the "prev" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *NodeQuery) WithPrev(opts ...func(*NodeQuery)) *NodeQuery {
+	query := (&NodeClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withPrev = query
+	return _q
+}
+
+// WithNext tells the query-builder to eager-load the nodes that are connected to
+// the "next" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *NodeQuery) WithNext(opts ...func(*NodeQuery)) *NodeQuery {
+	query := (&NodeClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withNext = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Value int `json:"value,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Node.Query().
+//		GroupBy(node.FieldValue).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *NodeQuery) GroupBy(field string, fields ...string) *NodeGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &NodeGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = node.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Value int `json:"value,omitempty"`
+//	}
+//
+//	client.Node.Query().
+//		Select(node.FieldValue).
+//		Scan(ctx, &v)
+func (_q *NodeQuery) Select(fields ...string) *NodeSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &NodeSelect{NodeQuery: _q}
+	sbuild.label = node.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a NodeSelect configured with the given aggregations.
+func (_q *NodeQuery) Aggregate(fns ...AggregateFunc) *NodeSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *NodeQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !node.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *NodeQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Node, error) {
+	var (
+		nodes       = []*Node{}
+		_spec       = _q.querySpec()
+		loadedTypes = [2]bool{
+			_q.withPrev != nil,
+			_q.withNext != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Node).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Node{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withPrev; query != nil {
+		if err := _q.loadPrev(ctx, query, nodes, nil,
+			func(n *Node, e *Node) { n.Edges.Prev = e }); err != nil {
+			return nil, err
+		}
+	}
+	if query := _q.withNext; query != nil {
+		if err := _q.loadNext(ctx, query, nodes, nil,
+			func(n *Node, e *Node) { n.Edges.Next = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *NodeQuery) loadPrev(ctx context.Context, query *NodeQuery, nodes []*Node, init func(*Node), assign func(*Node, *Node)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Node)
+	for i := range nodes {
+		fk := nodes[i].PrevID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(node.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "prev_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+func (_q *NodeQuery) loadNext(ctx context.Context, query *NodeQuery, nodes []*Node, init func(*Node), assign func(*Node, *Node)) error {
+	fks := make([]driver.Value, 0, len(nodes))
+	nodeids := make(map[int]*Node)
+	for i := range nodes {
+		fks = append(fks, nodes[i].ID)
+		nodeids[nodes[i].ID] = nodes[i]
+	}
+	if len(query.ctx.Fields) > 0 {
+		query.ctx.AppendFieldOnce(node.FieldPrevID)
+	}
+	query.Where(predicate.Node(func(s *sql.Selector) {
+		s.Where(sql.InValues(s.C(node.NextColumn), fks...))
+	}))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		fk := n.PrevID
+		node, ok := nodeids[fk]
+		if !ok {
+			return fmt.Errorf(`unexpected referenced foreign-key "prev_id" returned %v for node %v`, fk, n.ID)
+		}
+		assign(node, n)
+	}
+	return nil
+}
+
+func (_q *NodeQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *NodeQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(node.Table, node.Columns, sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, node.FieldID)
+		for i := range fields {
+			if fields[i] != node.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withPrev != nil {
+			_spec.Node.AddColumnOnce(node.FieldPrevID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *NodeQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(node.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = node.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// NodeGroupBy is the group-by builder for Node entities.
+type NodeGroupBy struct {
+	selector
+	build *NodeQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *NodeGroupBy) Aggregate(fns ...AggregateFunc) *NodeGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *NodeGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*NodeQuery, *NodeGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *NodeGroupBy) sqlScan(ctx context.Context, root *NodeQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// NodeSelect is the builder for selecting fields of Node entities.
+type NodeSelect struct {
+	*NodeQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *NodeSelect) Aggregate(fns ...AggregateFunc) *NodeSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *NodeSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*NodeQuery, *NodeSelect](ctx, _s.NodeQuery, _s, _s.inters, v)
+}
+
+func (_s *NodeSelect) sqlScan(ctx context.Context, root *NodeQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/node_update.go

@@ -0,0 +1,461 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// NodeUpdate is the builder for updating Node entities.
+type NodeUpdate struct {
+	config
+	hooks    []Hook
+	mutation *NodeMutation
+}
+
+// Where appends a list predicates to the NodeUpdate builder.
+func (_u *NodeUpdate) Where(ps ...predicate.Node) *NodeUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetValue sets the "value" field.
+func (_u *NodeUpdate) SetValue(v int) *NodeUpdate {
+	_u.mutation.ResetValue()
+	_u.mutation.SetValue(v)
+	return _u
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_u *NodeUpdate) SetNillableValue(v *int) *NodeUpdate {
+	if v != nil {
+		_u.SetValue(*v)
+	}
+	return _u
+}
+
+// AddValue adds value to the "value" field.
+func (_u *NodeUpdate) AddValue(v int) *NodeUpdate {
+	_u.mutation.AddValue(v)
+	return _u
+}
+
+// SetPrevID sets the "prev_id" field.
+func (_u *NodeUpdate) SetPrevID(v int) *NodeUpdate {
+	_u.mutation.SetPrevID(v)
+	return _u
+}
+
+// SetNillablePrevID sets the "prev_id" field if the given value is not nil.
+func (_u *NodeUpdate) SetNillablePrevID(v *int) *NodeUpdate {
+	if v != nil {
+		_u.SetPrevID(*v)
+	}
+	return _u
+}
+
+// ClearPrevID clears the value of the "prev_id" field.
+func (_u *NodeUpdate) ClearPrevID() *NodeUpdate {
+	_u.mutation.ClearPrevID()
+	return _u
+}
+
+// SetPrev sets the "prev" edge to the Node entity.
+func (_u *NodeUpdate) SetPrev(v *Node) *NodeUpdate {
+	return _u.SetPrevID(v.ID)
+}
+
+// SetNextID sets the "next" edge to the Node entity by ID.
+func (_u *NodeUpdate) SetNextID(id int) *NodeUpdate {
+	_u.mutation.SetNextID(id)
+	return _u
+}
+
+// SetNillableNextID sets the "next" edge to the Node entity by ID if the given value is not nil.
+func (_u *NodeUpdate) SetNillableNextID(id *int) *NodeUpdate {
+	if id != nil {
+		_u = _u.SetNextID(*id)
+	}
+	return _u
+}
+
+// SetNext sets the "next" edge to the Node entity.
+func (_u *NodeUpdate) SetNext(v *Node) *NodeUpdate {
+	return _u.SetNextID(v.ID)
+}
+
+// Mutation returns the NodeMutation object of the builder.
+func (_u *NodeUpdate) Mutation() *NodeMutation {
+	return _u.mutation
+}
+
+// ClearPrev clears the "prev" edge to the Node entity.
+func (_u *NodeUpdate) ClearPrev() *NodeUpdate {
+	_u.mutation.ClearPrev()
+	return _u
+}
+
+// ClearNext clears the "next" edge to the Node entity.
+func (_u *NodeUpdate) ClearNext() *NodeUpdate {
+	_u.mutation.ClearNext()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *NodeUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *NodeUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *NodeUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *NodeUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *NodeUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(node.Table, node.Columns, sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Value(); ok {
+		_spec.SetField(node.FieldValue, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedValue(); ok {
+		_spec.AddField(node.FieldValue, field.TypeInt, value)
+	}
+	if _u.mutation.PrevCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   node.PrevTable,
+			Columns: []string{node.PrevColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.PrevIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   node.PrevTable,
+			Columns: []string{node.PrevColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.NextCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   node.NextTable,
+			Columns: []string{node.NextColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.NextIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   node.NextTable,
+			Columns: []string{node.NextColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{node.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// NodeUpdateOne is the builder for updating a single Node entity.
+type NodeUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *NodeMutation
+}
+
+// SetValue sets the "value" field.
+func (_u *NodeUpdateOne) SetValue(v int) *NodeUpdateOne {
+	_u.mutation.ResetValue()
+	_u.mutation.SetValue(v)
+	return _u
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_u *NodeUpdateOne) SetNillableValue(v *int) *NodeUpdateOne {
+	if v != nil {
+		_u.SetValue(*v)
+	}
+	return _u
+}
+
+// AddValue adds value to the "value" field.
+func (_u *NodeUpdateOne) AddValue(v int) *NodeUpdateOne {
+	_u.mutation.AddValue(v)
+	return _u
+}
+
+// SetPrevID sets the "prev_id" field.
+func (_u *NodeUpdateOne) SetPrevID(v int) *NodeUpdateOne {
+	_u.mutation.SetPrevID(v)
+	return _u
+}
+
+// SetNillablePrevID sets the "prev_id" field if the given value is not nil.
+func (_u *NodeUpdateOne) SetNillablePrevID(v *int) *NodeUpdateOne {
+	if v != nil {
+		_u.SetPrevID(*v)
+	}
+	return _u
+}
+
+// ClearPrevID clears the value of the "prev_id" field.
+func (_u *NodeUpdateOne) ClearPrevID() *NodeUpdateOne {
+	_u.mutation.ClearPrevID()
+	return _u
+}
+
+// SetPrev sets the "prev" edge to the Node entity.
+func (_u *NodeUpdateOne) SetPrev(v *Node) *NodeUpdateOne {
+	return _u.SetPrevID(v.ID)
+}
+
+// SetNextID sets the "next" edge to the Node entity by ID.
+func (_u *NodeUpdateOne) SetNextID(id int) *NodeUpdateOne {
+	_u.mutation.SetNextID(id)
+	return _u
+}
+
+// SetNillableNextID sets the "next" edge to the Node entity by ID if the given value is not nil.
+func (_u *NodeUpdateOne) SetNillableNextID(id *int) *NodeUpdateOne {
+	if id != nil {
+		_u = _u.SetNextID(*id)
+	}
+	return _u
+}
+
+// SetNext sets the "next" edge to the Node entity.
+func (_u *NodeUpdateOne) SetNext(v *Node) *NodeUpdateOne {
+	return _u.SetNextID(v.ID)
+}
+
+// Mutation returns the NodeMutation object of the builder.
+func (_u *NodeUpdateOne) Mutation() *NodeMutation {
+	return _u.mutation
+}
+
+// ClearPrev clears the "prev" edge to the Node entity.
+func (_u *NodeUpdateOne) ClearPrev() *NodeUpdateOne {
+	_u.mutation.ClearPrev()
+	return _u
+}
+
+// ClearNext clears the "next" edge to the Node entity.
+func (_u *NodeUpdateOne) ClearNext() *NodeUpdateOne {
+	_u.mutation.ClearNext()
+	return _u
+}
+
+// Where appends a list predicates to the NodeUpdate builder.
+func (_u *NodeUpdateOne) Where(ps ...predicate.Node) *NodeUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *NodeUpdateOne) Select(field string, fields ...string) *NodeUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Node entity.
+func (_u *NodeUpdateOne) Save(ctx context.Context) (*Node, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *NodeUpdateOne) SaveX(ctx context.Context) *Node {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *NodeUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *NodeUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *NodeUpdateOne) sqlSave(ctx context.Context) (_node *Node, err error) {
+	_spec := sqlgraph.NewUpdateSpec(node.Table, node.Columns, sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Node.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, node.FieldID)
+		for _, f := range fields {
+			if !node.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != node.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Value(); ok {
+		_spec.SetField(node.FieldValue, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedValue(); ok {
+		_spec.AddField(node.FieldValue, field.TypeInt, value)
+	}
+	if _u.mutation.PrevCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   node.PrevTable,
+			Columns: []string{node.PrevColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.PrevIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: true,
+			Table:   node.PrevTable,
+			Columns: []string{node.PrevColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.NextCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   node.NextTable,
+			Columns: []string{node.NextColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.NextIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   node.NextTable,
+			Columns: []string{node.NextColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(node.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Node{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{node.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/pet.go

@@ -0,0 +1,134 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// Pet is the model entity for the Pet schema.
+type Pet struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// OwnerID holds the value of the "owner_id" field.
+	OwnerID int `json:"owner_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the PetQuery when eager-loading is set.
+	Edges        PetEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// PetEdges holds the relations/edges for other nodes in the graph.
+type PetEdges struct {
+	// Owner holds the value of the owner edge.
+	Owner *User `json:"owner,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// OwnerOrErr returns the Owner value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e PetEdges) OwnerOrErr() (*User, error) {
+	if e.Owner != nil {
+		return e.Owner, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "owner"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Pet) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case pet.FieldID, pet.FieldOwnerID:
+			values[i] = new(sql.NullInt64)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Pet fields.
+func (_m *Pet) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case pet.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case pet.FieldOwnerID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field owner_id", values[i])
+			} else if value.Valid {
+				_m.OwnerID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Pet.
+// This includes values selected through modifiers, order, etc.
+func (_m *Pet) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryOwner queries the "owner" edge of the Pet entity.
+func (_m *Pet) QueryOwner() *UserQuery {
+	return NewPetClient(_m.config).QueryOwner(_m)
+}
+
+// Update returns a builder for updating this Pet.
+// Note that you need to call Pet.Unwrap() before calling this method if this Pet
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Pet) Update() *PetUpdateOne {
+	return NewPetClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Pet entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Pet) Unwrap() *Pet {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Pet is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Pet) String() string {
+	var builder strings.Builder
+	builder.WriteString("Pet(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("owner_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.OwnerID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Pets is a parsable slice of Pet.
+type Pets []*Pet

entc/integration/edgefield/ent/pet/mutation.go

@@ -0,0 +1,312 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package pet
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Pet nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	clearedFields map[string]struct{}
+	owner         *int
+	clearedowner  bool
+	predicates    []predicate.Pet
+}
+
+// NewMutation creates a new Mutation for the Pet entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Pet",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Pet {
+	return m.predicates
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (m *Mutation) SetOwnerID(i int) {
+	m.owner = &i
+}
+
+// OwnerID returns the value of the "owner_id" field in the mutation.
+func (m *Mutation) OwnerID() (r int, exists bool) {
+	v := m.owner
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (m *Mutation) ClearOwnerID() {
+	m.owner = nil
+	m.clearedFields[FieldOwnerID] = struct{}{}
+}
+
+// OwnerIDCleared returns if the "owner_id" field was cleared in this mutation.
+func (m *Mutation) OwnerIDCleared() bool {
+	_, ok := m.clearedFields[FieldOwnerID]
+	return ok
+}
+
+// ResetOwnerID resets all changes to the "owner_id" field.
+func (m *Mutation) ResetOwnerID() {
+	m.owner = nil
+	delete(m.clearedFields, FieldOwnerID)
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (m *Mutation) ClearOwner() {
+	m.clearedowner = true
+	m.clearedFields[FieldOwnerID] = struct{}{}
+}
+
+// OwnerCleared reports if the "owner" edge to the User entity was cleared.
+func (m *Mutation) OwnerCleared() bool {
+	return m.OwnerIDCleared() || m.clearedowner
+}
+
+// OwnerIDs returns the "owner" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// OwnerID instead. It exists only for internal usage by the builders.
+func (m *Mutation) OwnerIDs() (ids []int) {
+	if id := m.owner; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetOwner resets all changes to the "owner" edge.
+func (m *Mutation) ResetOwner() {
+	m.owner = nil
+	m.clearedowner = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Pet) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Pet, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Pet).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 1)
+	if m.owner != nil {
+		fields = append(fields, FieldOwnerID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldOwnerID:
+		return m.OwnerID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Pet field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldOwnerID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetOwnerID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Pet field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Pet numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldOwnerID) {
+		fields = append(fields, FieldOwnerID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldOwnerID:
+		m.ClearOwnerID()
+		return nil
+	}
+	return fmt.Errorf("unknown Pet nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldOwnerID:
+		m.ResetOwnerID()
+		return nil
+	}
+	return fmt.Errorf("unknown Pet field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.owner != nil {
+		edges = append(edges, EdgeOwner)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeOwner:
+		if id := m.owner; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedowner {
+		edges = append(edges, EdgeOwner)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeOwner:
+		return m.clearedowner
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeOwner:
+		m.ClearOwner()
+		return nil
+	}
+	return fmt.Errorf("unknown Pet unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeOwner:
+		m.ResetOwner()
+		return nil
+	}
+	return fmt.Errorf("unknown Pet edge %s", name)
+}

entc/integration/edgefield/ent/pet/pet.go

@@ -0,0 +1,75 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package pet
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the pet type in the database.
+	Label = "pet"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldOwnerID holds the string denoting the owner_id field in the database.
+	FieldOwnerID = "owner_id"
+	// EdgeOwner holds the string denoting the owner edge name in mutations.
+	EdgeOwner = "owner"
+	// Table holds the table name of the pet in the database.
+	Table = "pets"
+	// OwnerTable is the table that holds the owner relation/edge.
+	OwnerTable = "pets"
+	// OwnerInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	OwnerInverseTable = "users"
+	// OwnerColumn is the table column denoting the owner relation/edge.
+	OwnerColumn = "owner_id"
+)
+
+// Columns holds all SQL columns for pet fields.
+var Columns = []string{
+	FieldID,
+	FieldOwnerID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// OrderOption defines the ordering options for the Pet queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByOwnerID orders the results by the owner_id field.
+func ByOwnerID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldOwnerID, opts...).ToFunc()
+}
+
+// ByOwnerField orders the results by owner field.
+func ByOwnerField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newOwnerStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newOwnerStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(OwnerInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, OwnerTable, OwnerColumn),
+	)
+}

entc/integration/edgefield/ent/pet/where.go

@@ -0,0 +1,131 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package pet
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Pet {
+	return predicate.Pet(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Pet {
+	return predicate.Pet(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Pet {
+	return predicate.Pet(sql.FieldLTE(FieldID, id))
+}
+
+// OwnerID applies equality check predicate on the "owner_id" field. It's identical to OwnerIDEQ.
+func OwnerID(v int) predicate.Pet {
+	return predicate.Pet(sql.FieldEQ(FieldOwnerID, v))
+}
+
+// OwnerIDEQ applies the EQ predicate on the "owner_id" field.
+func OwnerIDEQ(v int) predicate.Pet {
+	return predicate.Pet(sql.FieldEQ(FieldOwnerID, v))
+}
+
+// OwnerIDNEQ applies the NEQ predicate on the "owner_id" field.
+func OwnerIDNEQ(v int) predicate.Pet {
+	return predicate.Pet(sql.FieldNEQ(FieldOwnerID, v))
+}
+
+// OwnerIDIn applies the In predicate on the "owner_id" field.
+func OwnerIDIn(vs ...int) predicate.Pet {
+	return predicate.Pet(sql.FieldIn(FieldOwnerID, vs...))
+}
+
+// OwnerIDNotIn applies the NotIn predicate on the "owner_id" field.
+func OwnerIDNotIn(vs ...int) predicate.Pet {
+	return predicate.Pet(sql.FieldNotIn(FieldOwnerID, vs...))
+}
+
+// OwnerIDIsNil applies the IsNil predicate on the "owner_id" field.
+func OwnerIDIsNil() predicate.Pet {
+	return predicate.Pet(sql.FieldIsNull(FieldOwnerID))
+}
+
+// OwnerIDNotNil applies the NotNil predicate on the "owner_id" field.
+func OwnerIDNotNil() predicate.Pet {
+	return predicate.Pet(sql.FieldNotNull(FieldOwnerID))
+}
+
+// HasOwner applies the HasEdge predicate on the "owner" edge.
+func HasOwner() predicate.Pet {
+	return predicate.Pet(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, OwnerTable, OwnerColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasOwnerWith applies the HasEdge predicate on the "owner" edge with a given conditions (other predicates).
+func HasOwnerWith(preds ...predicate.User) predicate.Pet {
+	return predicate.Pet(func(s *sql.Selector) {
+		step := newOwnerStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Pet) predicate.Pet {
+	return predicate.Pet(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Pet) predicate.Pet {
+	return predicate.Pet(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Pet) predicate.Pet {
+	return predicate.Pet(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/pet_create.go

@@ -0,0 +1,210 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PetCreate is the builder for creating a Pet entity.
+type PetCreate struct {
+	config
+	mutation *PetMutation
+	hooks    []Hook
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_c *PetCreate) SetOwnerID(v int) *PetCreate {
+	_c.mutation.SetOwnerID(v)
+	return _c
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_c *PetCreate) SetNillableOwnerID(v *int) *PetCreate {
+	if v != nil {
+		_c.SetOwnerID(*v)
+	}
+	return _c
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_c *PetCreate) SetOwner(v *User) *PetCreate {
+	return _c.SetOwnerID(v.ID)
+}
+
+// Mutation returns the PetMutation object of the builder.
+func (_c *PetCreate) Mutation() *PetMutation {
+	return _c.mutation
+}
+
+// Save creates the Pet in the database.
+func (_c *PetCreate) Save(ctx context.Context) (*Pet, error) {
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *PetCreate) SaveX(ctx context.Context) *Pet {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *PetCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *PetCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *PetCreate) check() error {
+	return nil
+}
+
+func (_c *PetCreate) sqlSave(ctx context.Context) (*Pet, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *PetCreate) createSpec() (*Pet, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Pet{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(pet.Table, sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt))
+	)
+	if nodes := _c.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   pet.OwnerTable,
+			Columns: []string{pet.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.OwnerID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// PetCreateBulk is the builder for creating many Pet entities in bulk.
+type PetCreateBulk struct {
+	config
+	err      error
+	builders []*PetCreate
+}
+
+// Save creates the Pet entities in the database.
+func (_c *PetCreateBulk) Save(ctx context.Context) ([]*Pet, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Pet, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*PetMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *PetCreateBulk) SaveX(ctx context.Context) []*Pet {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *PetCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *PetCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/pet_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// PetDelete is the builder for deleting a Pet entity.
+type PetDelete struct {
+	config
+	hooks    []Hook
+	mutation *PetMutation
+}
+
+// Where appends a list predicates to the PetDelete builder.
+func (_d *PetDelete) Where(ps ...predicate.Pet) *PetDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *PetDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *PetDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *PetDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(pet.Table, sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// PetDeleteOne is the builder for deleting a single Pet entity.
+type PetDeleteOne struct {
+	_d *PetDelete
+}
+
+// Where appends a list predicates to the PetDelete builder.
+func (_d *PetDeleteOne) Where(ps ...predicate.Pet) *PetDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *PetDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{pet.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *PetDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/pet_query.go

@@ -0,0 +1,610 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PetQuery is the builder for querying Pet entities.
+type PetQuery struct {
+	config
+	ctx        *QueryContext
+	order      []pet.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Pet
+	withOwner  *UserQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the PetQuery builder.
+func (_q *PetQuery) Where(ps ...predicate.Pet) *PetQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *PetQuery) Limit(limit int) *PetQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *PetQuery) Offset(offset int) *PetQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *PetQuery) Unique(unique bool) *PetQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *PetQuery) Order(o ...pet.OrderOption) *PetQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryOwner chains the current query on the "owner" edge.
+func (_q *PetQuery) QueryOwner() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(pet.Table, pet.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, pet.OwnerTable, pet.OwnerColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Pet entity from the query.
+// Returns a *NotFoundError when no Pet was found.
+func (_q *PetQuery) First(ctx context.Context) (*Pet, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{pet.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *PetQuery) FirstX(ctx context.Context) *Pet {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Pet ID from the query.
+// Returns a *NotFoundError when no Pet ID was found.
+func (_q *PetQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{pet.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *PetQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Pet entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Pet entity is found.
+// Returns a *NotFoundError when no Pet entities are found.
+func (_q *PetQuery) Only(ctx context.Context) (*Pet, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{pet.Label}
+	default:
+		return nil, &NotSingularError{pet.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *PetQuery) OnlyX(ctx context.Context) *Pet {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Pet ID in the query.
+// Returns a *NotSingularError when more than one Pet ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *PetQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{pet.Label}
+	default:
+		err = &NotSingularError{pet.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *PetQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Pets.
+func (_q *PetQuery) All(ctx context.Context) ([]*Pet, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Pet, *PetQuery]()
+	return withInterceptors[[]*Pet](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *PetQuery) AllX(ctx context.Context) []*Pet {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Pet IDs.
+func (_q *PetQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(pet.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *PetQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *PetQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*PetQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *PetQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *PetQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *PetQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the PetQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *PetQuery) Clone() *PetQuery {
+	if _q == nil {
+		return nil
+	}
+	return &PetQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]pet.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Pet{}, _q.predicates...),
+		withOwner:  _q.withOwner.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithOwner tells the query-builder to eager-load the nodes that are connected to
+// the "owner" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *PetQuery) WithOwner(opts ...func(*UserQuery)) *PetQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withOwner = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		OwnerID int `json:"owner_id,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Pet.Query().
+//		GroupBy(pet.FieldOwnerID).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *PetQuery) GroupBy(field string, fields ...string) *PetGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &PetGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = pet.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		OwnerID int `json:"owner_id,omitempty"`
+//	}
+//
+//	client.Pet.Query().
+//		Select(pet.FieldOwnerID).
+//		Scan(ctx, &v)
+func (_q *PetQuery) Select(fields ...string) *PetSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &PetSelect{PetQuery: _q}
+	sbuild.label = pet.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a PetSelect configured with the given aggregations.
+func (_q *PetQuery) Aggregate(fns ...AggregateFunc) *PetSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *PetQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !pet.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *PetQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Pet, error) {
+	var (
+		nodes       = []*Pet{}
+		_spec       = _q.querySpec()
+		loadedTypes = [1]bool{
+			_q.withOwner != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Pet).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Pet{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withOwner; query != nil {
+		if err := _q.loadOwner(ctx, query, nodes, nil,
+			func(n *Pet, e *User) { n.Edges.Owner = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *PetQuery) loadOwner(ctx context.Context, query *UserQuery, nodes []*Pet, init func(*Pet), assign func(*Pet, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Pet)
+	for i := range nodes {
+		fk := nodes[i].OwnerID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "owner_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *PetQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *PetQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(pet.Table, pet.Columns, sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, pet.FieldID)
+		for i := range fields {
+			if fields[i] != pet.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withOwner != nil {
+			_spec.Node.AddColumnOnce(pet.FieldOwnerID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *PetQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(pet.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = pet.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// PetGroupBy is the group-by builder for Pet entities.
+type PetGroupBy struct {
+	selector
+	build *PetQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *PetGroupBy) Aggregate(fns ...AggregateFunc) *PetGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *PetGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*PetQuery, *PetGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *PetGroupBy) sqlScan(ctx context.Context, root *PetQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// PetSelect is the builder for selecting fields of Pet entities.
+type PetSelect struct {
+	*PetQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *PetSelect) Aggregate(fns ...AggregateFunc) *PetSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *PetSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*PetQuery, *PetSelect](ctx, _s.PetQuery, _s, _s.inters, v)
+}
+
+func (_s *PetSelect) sqlScan(ctx context.Context, root *PetQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/pet_update.go

@@ -0,0 +1,300 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PetUpdate is the builder for updating Pet entities.
+type PetUpdate struct {
+	config
+	hooks    []Hook
+	mutation *PetMutation
+}
+
+// Where appends a list predicates to the PetUpdate builder.
+func (_u *PetUpdate) Where(ps ...predicate.Pet) *PetUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_u *PetUpdate) SetOwnerID(v int) *PetUpdate {
+	_u.mutation.SetOwnerID(v)
+	return _u
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_u *PetUpdate) SetNillableOwnerID(v *int) *PetUpdate {
+	if v != nil {
+		_u.SetOwnerID(*v)
+	}
+	return _u
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (_u *PetUpdate) ClearOwnerID() *PetUpdate {
+	_u.mutation.ClearOwnerID()
+	return _u
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_u *PetUpdate) SetOwner(v *User) *PetUpdate {
+	return _u.SetOwnerID(v.ID)
+}
+
+// Mutation returns the PetMutation object of the builder.
+func (_u *PetUpdate) Mutation() *PetMutation {
+	return _u.mutation
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (_u *PetUpdate) ClearOwner() *PetUpdate {
+	_u.mutation.ClearOwner()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *PetUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *PetUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *PetUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *PetUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *PetUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(pet.Table, pet.Columns, sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if _u.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   pet.OwnerTable,
+			Columns: []string{pet.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   pet.OwnerTable,
+			Columns: []string{pet.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{pet.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// PetUpdateOne is the builder for updating a single Pet entity.
+type PetUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *PetMutation
+}
+
+// SetOwnerID sets the "owner_id" field.
+func (_u *PetUpdateOne) SetOwnerID(v int) *PetUpdateOne {
+	_u.mutation.SetOwnerID(v)
+	return _u
+}
+
+// SetNillableOwnerID sets the "owner_id" field if the given value is not nil.
+func (_u *PetUpdateOne) SetNillableOwnerID(v *int) *PetUpdateOne {
+	if v != nil {
+		_u.SetOwnerID(*v)
+	}
+	return _u
+}
+
+// ClearOwnerID clears the value of the "owner_id" field.
+func (_u *PetUpdateOne) ClearOwnerID() *PetUpdateOne {
+	_u.mutation.ClearOwnerID()
+	return _u
+}
+
+// SetOwner sets the "owner" edge to the User entity.
+func (_u *PetUpdateOne) SetOwner(v *User) *PetUpdateOne {
+	return _u.SetOwnerID(v.ID)
+}
+
+// Mutation returns the PetMutation object of the builder.
+func (_u *PetUpdateOne) Mutation() *PetMutation {
+	return _u.mutation
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (_u *PetUpdateOne) ClearOwner() *PetUpdateOne {
+	_u.mutation.ClearOwner()
+	return _u
+}
+
+// Where appends a list predicates to the PetUpdate builder.
+func (_u *PetUpdateOne) Where(ps ...predicate.Pet) *PetUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *PetUpdateOne) Select(field string, fields ...string) *PetUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Pet entity.
+func (_u *PetUpdateOne) Save(ctx context.Context) (*Pet, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *PetUpdateOne) SaveX(ctx context.Context) *Pet {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *PetUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *PetUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *PetUpdateOne) sqlSave(ctx context.Context) (_node *Pet, err error) {
+	_spec := sqlgraph.NewUpdateSpec(pet.Table, pet.Columns, sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Pet.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, pet.FieldID)
+		for _, f := range fields {
+			if !pet.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != pet.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if _u.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   pet.OwnerTable,
+			Columns: []string{pet.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   pet.OwnerTable,
+			Columns: []string{pet.OwnerColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Pet{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{pet.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/post.go

@@ -0,0 +1,150 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// Post is the model entity for the Post schema.
+type Post struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Text holds the value of the "text" field.
+	Text string `json:"text,omitempty"`
+	// AuthorID holds the value of the "author_id" field.
+	AuthorID *int `json:"author_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the PostQuery when eager-loading is set.
+	Edges        PostEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// PostEdges holds the relations/edges for other nodes in the graph.
+type PostEdges struct {
+	// Author holds the value of the author edge.
+	Author *User `json:"author,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// AuthorOrErr returns the Author value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e PostEdges) AuthorOrErr() (*User, error) {
+	if e.Author != nil {
+		return e.Author, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "author"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Post) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case post.FieldID, post.FieldAuthorID:
+			values[i] = new(sql.NullInt64)
+		case post.FieldText:
+			values[i] = new(sql.NullString)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Post fields.
+func (_m *Post) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case post.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case post.FieldText:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field text", values[i])
+			} else if value.Valid {
+				_m.Text = value.String
+			}
+		case post.FieldAuthorID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field author_id", values[i])
+			} else if value.Valid {
+				_m.AuthorID = new(int)
+				*_m.AuthorID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Post.
+// This includes values selected through modifiers, order, etc.
+func (_m *Post) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryAuthor queries the "author" edge of the Post entity.
+func (_m *Post) QueryAuthor() *UserQuery {
+	return NewPostClient(_m.config).QueryAuthor(_m)
+}
+
+// Update returns a builder for updating this Post.
+// Note that you need to call Post.Unwrap() before calling this method if this Post
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Post) Update() *PostUpdateOne {
+	return NewPostClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Post entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Post) Unwrap() *Post {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Post is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Post) String() string {
+	var builder strings.Builder
+	builder.WriteString("Post(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("text=")
+	builder.WriteString(_m.Text)
+	builder.WriteString(", ")
+	if v := _m.AuthorID; v != nil {
+		builder.WriteString("author_id=")
+		builder.WriteString(fmt.Sprintf("%v", *v))
+	}
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Posts is a parsable slice of Post.
+type Posts []*Post

entc/integration/edgefield/ent/post/mutation.go

@@ -0,0 +1,347 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package post
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the Post nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	text          *string
+	clearedFields map[string]struct{}
+	author        *int
+	clearedauthor bool
+	predicates    []predicate.Post
+}
+
+// NewMutation creates a new Mutation for the Post entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Post",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Post {
+	return m.predicates
+}
+
+// SetText sets the "text" field.
+func (m *Mutation) SetText(s string) {
+	m.text = &s
+}
+
+// Text returns the value of the "text" field in the mutation.
+func (m *Mutation) Text() (r string, exists bool) {
+	v := m.text
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetText resets all changes to the "text" field.
+func (m *Mutation) ResetText() {
+	m.text = nil
+}
+
+// SetAuthorID sets the "author_id" field.
+func (m *Mutation) SetAuthorID(i int) {
+	m.author = &i
+}
+
+// AuthorID returns the value of the "author_id" field in the mutation.
+func (m *Mutation) AuthorID() (r int, exists bool) {
+	v := m.author
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearAuthorID clears the value of the "author_id" field.
+func (m *Mutation) ClearAuthorID() {
+	m.author = nil
+	m.clearedFields[FieldAuthorID] = struct{}{}
+}
+
+// AuthorIDCleared returns if the "author_id" field was cleared in this mutation.
+func (m *Mutation) AuthorIDCleared() bool {
+	_, ok := m.clearedFields[FieldAuthorID]
+	return ok
+}
+
+// ResetAuthorID resets all changes to the "author_id" field.
+func (m *Mutation) ResetAuthorID() {
+	m.author = nil
+	delete(m.clearedFields, FieldAuthorID)
+}
+
+// ClearAuthor clears the "author" edge to the User entity.
+func (m *Mutation) ClearAuthor() {
+	m.clearedauthor = true
+	m.clearedFields[FieldAuthorID] = struct{}{}
+}
+
+// AuthorCleared reports if the "author" edge to the User entity was cleared.
+func (m *Mutation) AuthorCleared() bool {
+	return m.AuthorIDCleared() || m.clearedauthor
+}
+
+// AuthorIDs returns the "author" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// AuthorID instead. It exists only for internal usage by the builders.
+func (m *Mutation) AuthorIDs() (ids []int) {
+	if id := m.author; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetAuthor resets all changes to the "author" edge.
+func (m *Mutation) ResetAuthor() {
+	m.author = nil
+	m.clearedauthor = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Post) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Post, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Post).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.text != nil {
+		fields = append(fields, FieldText)
+	}
+	if m.author != nil {
+		fields = append(fields, FieldAuthorID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldText:
+		return m.Text()
+	case FieldAuthorID:
+		return m.AuthorID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Post field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldText:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetText(v)
+		return nil
+	case FieldAuthorID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetAuthorID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Post field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Post numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldAuthorID) {
+		fields = append(fields, FieldAuthorID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldAuthorID:
+		m.ClearAuthorID()
+		return nil
+	}
+	return fmt.Errorf("unknown Post nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldText:
+		m.ResetText()
+		return nil
+	case FieldAuthorID:
+		m.ResetAuthorID()
+		return nil
+	}
+	return fmt.Errorf("unknown Post field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.author != nil {
+		edges = append(edges, EdgeAuthor)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeAuthor:
+		if id := m.author; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedauthor {
+		edges = append(edges, EdgeAuthor)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeAuthor:
+		return m.clearedauthor
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeAuthor:
+		m.ClearAuthor()
+		return nil
+	}
+	return fmt.Errorf("unknown Post unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeAuthor:
+		m.ResetAuthor()
+		return nil
+	}
+	return fmt.Errorf("unknown Post edge %s", name)
+}

entc/integration/edgefield/ent/post/post.go

@@ -0,0 +1,83 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package post
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the post type in the database.
+	Label = "post"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldText holds the string denoting the text field in the database.
+	FieldText = "text"
+	// FieldAuthorID holds the string denoting the author_id field in the database.
+	FieldAuthorID = "author_id"
+	// EdgeAuthor holds the string denoting the author edge name in mutations.
+	EdgeAuthor = "author"
+	// Table holds the table name of the post in the database.
+	Table = "posts"
+	// AuthorTable is the table that holds the author relation/edge.
+	AuthorTable = "posts"
+	// AuthorInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	AuthorInverseTable = "users"
+	// AuthorColumn is the table column denoting the author relation/edge.
+	AuthorColumn = "author_id"
+)
+
+// Columns holds all SQL columns for post fields.
+var Columns = []string{
+	FieldID,
+	FieldText,
+	FieldAuthorID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// OrderOption defines the ordering options for the Post queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByText orders the results by the text field.
+func ByText(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldText, opts...).ToFunc()
+}
+
+// ByAuthorID orders the results by the author_id field.
+func ByAuthorID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldAuthorID, opts...).ToFunc()
+}
+
+// ByAuthorField orders the results by author field.
+func ByAuthorField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newAuthorStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newAuthorStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(AuthorInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, false, AuthorTable, AuthorColumn),
+	)
+}

entc/integration/edgefield/ent/post/where.go

@@ -0,0 +1,201 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package post
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Post {
+	return predicate.Post(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Post {
+	return predicate.Post(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Post {
+	return predicate.Post(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Post {
+	return predicate.Post(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Post {
+	return predicate.Post(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Post {
+	return predicate.Post(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Post {
+	return predicate.Post(sql.FieldLTE(FieldID, id))
+}
+
+// Text applies equality check predicate on the "text" field. It's identical to TextEQ.
+func Text(v string) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldText, v))
+}
+
+// AuthorID applies equality check predicate on the "author_id" field. It's identical to AuthorIDEQ.
+func AuthorID(v int) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldAuthorID, v))
+}
+
+// TextEQ applies the EQ predicate on the "text" field.
+func TextEQ(v string) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldText, v))
+}
+
+// TextNEQ applies the NEQ predicate on the "text" field.
+func TextNEQ(v string) predicate.Post {
+	return predicate.Post(sql.FieldNEQ(FieldText, v))
+}
+
+// TextIn applies the In predicate on the "text" field.
+func TextIn(vs ...string) predicate.Post {
+	return predicate.Post(sql.FieldIn(FieldText, vs...))
+}
+
+// TextNotIn applies the NotIn predicate on the "text" field.
+func TextNotIn(vs ...string) predicate.Post {
+	return predicate.Post(sql.FieldNotIn(FieldText, vs...))
+}
+
+// TextGT applies the GT predicate on the "text" field.
+func TextGT(v string) predicate.Post {
+	return predicate.Post(sql.FieldGT(FieldText, v))
+}
+
+// TextGTE applies the GTE predicate on the "text" field.
+func TextGTE(v string) predicate.Post {
+	return predicate.Post(sql.FieldGTE(FieldText, v))
+}
+
+// TextLT applies the LT predicate on the "text" field.
+func TextLT(v string) predicate.Post {
+	return predicate.Post(sql.FieldLT(FieldText, v))
+}
+
+// TextLTE applies the LTE predicate on the "text" field.
+func TextLTE(v string) predicate.Post {
+	return predicate.Post(sql.FieldLTE(FieldText, v))
+}
+
+// TextContains applies the Contains predicate on the "text" field.
+func TextContains(v string) predicate.Post {
+	return predicate.Post(sql.FieldContains(FieldText, v))
+}
+
+// TextHasPrefix applies the HasPrefix predicate on the "text" field.
+func TextHasPrefix(v string) predicate.Post {
+	return predicate.Post(sql.FieldHasPrefix(FieldText, v))
+}
+
+// TextHasSuffix applies the HasSuffix predicate on the "text" field.
+func TextHasSuffix(v string) predicate.Post {
+	return predicate.Post(sql.FieldHasSuffix(FieldText, v))
+}
+
+// TextEqualFold applies the EqualFold predicate on the "text" field.
+func TextEqualFold(v string) predicate.Post {
+	return predicate.Post(sql.FieldEqualFold(FieldText, v))
+}
+
+// TextContainsFold applies the ContainsFold predicate on the "text" field.
+func TextContainsFold(v string) predicate.Post {
+	return predicate.Post(sql.FieldContainsFold(FieldText, v))
+}
+
+// AuthorIDEQ applies the EQ predicate on the "author_id" field.
+func AuthorIDEQ(v int) predicate.Post {
+	return predicate.Post(sql.FieldEQ(FieldAuthorID, v))
+}
+
+// AuthorIDNEQ applies the NEQ predicate on the "author_id" field.
+func AuthorIDNEQ(v int) predicate.Post {
+	return predicate.Post(sql.FieldNEQ(FieldAuthorID, v))
+}
+
+// AuthorIDIn applies the In predicate on the "author_id" field.
+func AuthorIDIn(vs ...int) predicate.Post {
+	return predicate.Post(sql.FieldIn(FieldAuthorID, vs...))
+}
+
+// AuthorIDNotIn applies the NotIn predicate on the "author_id" field.
+func AuthorIDNotIn(vs ...int) predicate.Post {
+	return predicate.Post(sql.FieldNotIn(FieldAuthorID, vs...))
+}
+
+// AuthorIDIsNil applies the IsNil predicate on the "author_id" field.
+func AuthorIDIsNil() predicate.Post {
+	return predicate.Post(sql.FieldIsNull(FieldAuthorID))
+}
+
+// AuthorIDNotNil applies the NotNil predicate on the "author_id" field.
+func AuthorIDNotNil() predicate.Post {
+	return predicate.Post(sql.FieldNotNull(FieldAuthorID))
+}
+
+// HasAuthor applies the HasEdge predicate on the "author" edge.
+func HasAuthor() predicate.Post {
+	return predicate.Post(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, AuthorTable, AuthorColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasAuthorWith applies the HasEdge predicate on the "author" edge with a given conditions (other predicates).
+func HasAuthorWith(preds ...predicate.User) predicate.Post {
+	return predicate.Post(func(s *sql.Selector) {
+		step := newAuthorStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Post) predicate.Post {
+	return predicate.Post(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Post) predicate.Post {
+	return predicate.Post(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Post) predicate.Post {
+	return predicate.Post(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/post_create.go

@@ -0,0 +1,224 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PostCreate is the builder for creating a Post entity.
+type PostCreate struct {
+	config
+	mutation *PostMutation
+	hooks    []Hook
+}
+
+// SetText sets the "text" field.
+func (_c *PostCreate) SetText(v string) *PostCreate {
+	_c.mutation.SetText(v)
+	return _c
+}
+
+// SetAuthorID sets the "author_id" field.
+func (_c *PostCreate) SetAuthorID(v int) *PostCreate {
+	_c.mutation.SetAuthorID(v)
+	return _c
+}
+
+// SetNillableAuthorID sets the "author_id" field if the given value is not nil.
+func (_c *PostCreate) SetNillableAuthorID(v *int) *PostCreate {
+	if v != nil {
+		_c.SetAuthorID(*v)
+	}
+	return _c
+}
+
+// SetAuthor sets the "author" edge to the User entity.
+func (_c *PostCreate) SetAuthor(v *User) *PostCreate {
+	return _c.SetAuthorID(v.ID)
+}
+
+// Mutation returns the PostMutation object of the builder.
+func (_c *PostCreate) Mutation() *PostMutation {
+	return _c.mutation
+}
+
+// Save creates the Post in the database.
+func (_c *PostCreate) Save(ctx context.Context) (*Post, error) {
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *PostCreate) SaveX(ctx context.Context) *Post {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *PostCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *PostCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *PostCreate) check() error {
+	if _, ok := _c.mutation.Text(); !ok {
+		return &ValidationError{Name: "text", err: errors.New(`ent: missing required field "Post.text"`)}
+	}
+	return nil
+}
+
+func (_c *PostCreate) sqlSave(ctx context.Context) (*Post, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *PostCreate) createSpec() (*Post, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Post{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(post.Table, sqlgraph.NewFieldSpec(post.FieldID, field.TypeInt))
+	)
+	if value, ok := _c.mutation.Text(); ok {
+		_spec.SetField(post.FieldText, field.TypeString, value)
+		_node.Text = value
+	}
+	if nodes := _c.mutation.AuthorIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   post.AuthorTable,
+			Columns: []string{post.AuthorColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.AuthorID = &nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// PostCreateBulk is the builder for creating many Post entities in bulk.
+type PostCreateBulk struct {
+	config
+	err      error
+	builders []*PostCreate
+}
+
+// Save creates the Post entities in the database.
+func (_c *PostCreateBulk) Save(ctx context.Context) ([]*Post, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Post, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*PostMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *PostCreateBulk) SaveX(ctx context.Context) []*Post {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *PostCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *PostCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/post_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/schema/field"
+)
+
+// PostDelete is the builder for deleting a Post entity.
+type PostDelete struct {
+	config
+	hooks    []Hook
+	mutation *PostMutation
+}
+
+// Where appends a list predicates to the PostDelete builder.
+func (_d *PostDelete) Where(ps ...predicate.Post) *PostDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *PostDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *PostDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *PostDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(post.Table, sqlgraph.NewFieldSpec(post.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// PostDeleteOne is the builder for deleting a single Post entity.
+type PostDeleteOne struct {
+	_d *PostDelete
+}
+
+// Where appends a list predicates to the PostDelete builder.
+func (_d *PostDeleteOne) Where(ps ...predicate.Post) *PostDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *PostDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{post.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *PostDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/post_query.go

@@ -0,0 +1,613 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PostQuery is the builder for querying Post entities.
+type PostQuery struct {
+	config
+	ctx        *QueryContext
+	order      []post.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Post
+	withAuthor *UserQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the PostQuery builder.
+func (_q *PostQuery) Where(ps ...predicate.Post) *PostQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *PostQuery) Limit(limit int) *PostQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *PostQuery) Offset(offset int) *PostQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *PostQuery) Unique(unique bool) *PostQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *PostQuery) Order(o ...post.OrderOption) *PostQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryAuthor chains the current query on the "author" edge.
+func (_q *PostQuery) QueryAuthor() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(post.Table, post.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, false, post.AuthorTable, post.AuthorColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Post entity from the query.
+// Returns a *NotFoundError when no Post was found.
+func (_q *PostQuery) First(ctx context.Context) (*Post, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{post.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *PostQuery) FirstX(ctx context.Context) *Post {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Post ID from the query.
+// Returns a *NotFoundError when no Post ID was found.
+func (_q *PostQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{post.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *PostQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Post entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Post entity is found.
+// Returns a *NotFoundError when no Post entities are found.
+func (_q *PostQuery) Only(ctx context.Context) (*Post, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{post.Label}
+	default:
+		return nil, &NotSingularError{post.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *PostQuery) OnlyX(ctx context.Context) *Post {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Post ID in the query.
+// Returns a *NotSingularError when more than one Post ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *PostQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{post.Label}
+	default:
+		err = &NotSingularError{post.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *PostQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Posts.
+func (_q *PostQuery) All(ctx context.Context) ([]*Post, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Post, *PostQuery]()
+	return withInterceptors[[]*Post](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *PostQuery) AllX(ctx context.Context) []*Post {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Post IDs.
+func (_q *PostQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(post.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *PostQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *PostQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*PostQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *PostQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *PostQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *PostQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the PostQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *PostQuery) Clone() *PostQuery {
+	if _q == nil {
+		return nil
+	}
+	return &PostQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]post.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Post{}, _q.predicates...),
+		withAuthor: _q.withAuthor.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithAuthor tells the query-builder to eager-load the nodes that are connected to
+// the "author" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *PostQuery) WithAuthor(opts ...func(*UserQuery)) *PostQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withAuthor = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Text string `json:"text,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Post.Query().
+//		GroupBy(post.FieldText).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *PostQuery) GroupBy(field string, fields ...string) *PostGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &PostGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = post.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Text string `json:"text,omitempty"`
+//	}
+//
+//	client.Post.Query().
+//		Select(post.FieldText).
+//		Scan(ctx, &v)
+func (_q *PostQuery) Select(fields ...string) *PostSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &PostSelect{PostQuery: _q}
+	sbuild.label = post.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a PostSelect configured with the given aggregations.
+func (_q *PostQuery) Aggregate(fns ...AggregateFunc) *PostSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *PostQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !post.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *PostQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Post, error) {
+	var (
+		nodes       = []*Post{}
+		_spec       = _q.querySpec()
+		loadedTypes = [1]bool{
+			_q.withAuthor != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Post).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Post{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withAuthor; query != nil {
+		if err := _q.loadAuthor(ctx, query, nodes, nil,
+			func(n *Post, e *User) { n.Edges.Author = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *PostQuery) loadAuthor(ctx context.Context, query *UserQuery, nodes []*Post, init func(*Post), assign func(*Post, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Post)
+	for i := range nodes {
+		if nodes[i].AuthorID == nil {
+			continue
+		}
+		fk := *nodes[i].AuthorID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "author_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *PostQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *PostQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(post.Table, post.Columns, sqlgraph.NewFieldSpec(post.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, post.FieldID)
+		for i := range fields {
+			if fields[i] != post.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withAuthor != nil {
+			_spec.Node.AddColumnOnce(post.FieldAuthorID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *PostQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(post.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = post.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// PostGroupBy is the group-by builder for Post entities.
+type PostGroupBy struct {
+	selector
+	build *PostQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *PostGroupBy) Aggregate(fns ...AggregateFunc) *PostGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *PostGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*PostQuery, *PostGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *PostGroupBy) sqlScan(ctx context.Context, root *PostQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// PostSelect is the builder for selecting fields of Post entities.
+type PostSelect struct {
+	*PostQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *PostSelect) Aggregate(fns ...AggregateFunc) *PostSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *PostSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*PostQuery, *PostSelect](ctx, _s.PostQuery, _s, _s.inters, v)
+}
+
+func (_s *PostSelect) sqlScan(ctx context.Context, root *PostQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/post_update.go

@@ -0,0 +1,334 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/post"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// PostUpdate is the builder for updating Post entities.
+type PostUpdate struct {
+	config
+	hooks    []Hook
+	mutation *PostMutation
+}
+
+// Where appends a list predicates to the PostUpdate builder.
+func (_u *PostUpdate) Where(ps ...predicate.Post) *PostUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetText sets the "text" field.
+func (_u *PostUpdate) SetText(v string) *PostUpdate {
+	_u.mutation.SetText(v)
+	return _u
+}
+
+// SetNillableText sets the "text" field if the given value is not nil.
+func (_u *PostUpdate) SetNillableText(v *string) *PostUpdate {
+	if v != nil {
+		_u.SetText(*v)
+	}
+	return _u
+}
+
+// SetAuthorID sets the "author_id" field.
+func (_u *PostUpdate) SetAuthorID(v int) *PostUpdate {
+	_u.mutation.SetAuthorID(v)
+	return _u
+}
+
+// SetNillableAuthorID sets the "author_id" field if the given value is not nil.
+func (_u *PostUpdate) SetNillableAuthorID(v *int) *PostUpdate {
+	if v != nil {
+		_u.SetAuthorID(*v)
+	}
+	return _u
+}
+
+// ClearAuthorID clears the value of the "author_id" field.
+func (_u *PostUpdate) ClearAuthorID() *PostUpdate {
+	_u.mutation.ClearAuthorID()
+	return _u
+}
+
+// SetAuthor sets the "author" edge to the User entity.
+func (_u *PostUpdate) SetAuthor(v *User) *PostUpdate {
+	return _u.SetAuthorID(v.ID)
+}
+
+// Mutation returns the PostMutation object of the builder.
+func (_u *PostUpdate) Mutation() *PostMutation {
+	return _u.mutation
+}
+
+// ClearAuthor clears the "author" edge to the User entity.
+func (_u *PostUpdate) ClearAuthor() *PostUpdate {
+	_u.mutation.ClearAuthor()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *PostUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *PostUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *PostUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *PostUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *PostUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(post.Table, post.Columns, sqlgraph.NewFieldSpec(post.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Text(); ok {
+		_spec.SetField(post.FieldText, field.TypeString, value)
+	}
+	if _u.mutation.AuthorCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   post.AuthorTable,
+			Columns: []string{post.AuthorColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.AuthorIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   post.AuthorTable,
+			Columns: []string{post.AuthorColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{post.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// PostUpdateOne is the builder for updating a single Post entity.
+type PostUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *PostMutation
+}
+
+// SetText sets the "text" field.
+func (_u *PostUpdateOne) SetText(v string) *PostUpdateOne {
+	_u.mutation.SetText(v)
+	return _u
+}
+
+// SetNillableText sets the "text" field if the given value is not nil.
+func (_u *PostUpdateOne) SetNillableText(v *string) *PostUpdateOne {
+	if v != nil {
+		_u.SetText(*v)
+	}
+	return _u
+}
+
+// SetAuthorID sets the "author_id" field.
+func (_u *PostUpdateOne) SetAuthorID(v int) *PostUpdateOne {
+	_u.mutation.SetAuthorID(v)
+	return _u
+}
+
+// SetNillableAuthorID sets the "author_id" field if the given value is not nil.
+func (_u *PostUpdateOne) SetNillableAuthorID(v *int) *PostUpdateOne {
+	if v != nil {
+		_u.SetAuthorID(*v)
+	}
+	return _u
+}
+
+// ClearAuthorID clears the value of the "author_id" field.
+func (_u *PostUpdateOne) ClearAuthorID() *PostUpdateOne {
+	_u.mutation.ClearAuthorID()
+	return _u
+}
+
+// SetAuthor sets the "author" edge to the User entity.
+func (_u *PostUpdateOne) SetAuthor(v *User) *PostUpdateOne {
+	return _u.SetAuthorID(v.ID)
+}
+
+// Mutation returns the PostMutation object of the builder.
+func (_u *PostUpdateOne) Mutation() *PostMutation {
+	return _u.mutation
+}
+
+// ClearAuthor clears the "author" edge to the User entity.
+func (_u *PostUpdateOne) ClearAuthor() *PostUpdateOne {
+	_u.mutation.ClearAuthor()
+	return _u
+}
+
+// Where appends a list predicates to the PostUpdate builder.
+func (_u *PostUpdateOne) Where(ps ...predicate.Post) *PostUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *PostUpdateOne) Select(field string, fields ...string) *PostUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Post entity.
+func (_u *PostUpdateOne) Save(ctx context.Context) (*Post, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *PostUpdateOne) SaveX(ctx context.Context) *Post {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *PostUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *PostUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (_u *PostUpdateOne) sqlSave(ctx context.Context) (_node *Post, err error) {
+	_spec := sqlgraph.NewUpdateSpec(post.Table, post.Columns, sqlgraph.NewFieldSpec(post.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Post.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, post.FieldID)
+		for _, f := range fields {
+			if !post.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != post.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Text(); ok {
+		_spec.SetField(post.FieldText, field.TypeString, value)
+	}
+	if _u.mutation.AuthorCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   post.AuthorTable,
+			Columns: []string{post.AuthorColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.AuthorIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: false,
+			Table:   post.AuthorTable,
+			Columns: []string{post.AuthorColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Post{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{post.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/predicate/predicate.go

@@ -0,0 +1,38 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Car is the predicate function for car builders.
+type Car func(*sql.Selector)
+
+// Card is the predicate function for card builders.
+type Card func(*sql.Selector)
+
+// Info is the predicate function for info builders.
+type Info func(*sql.Selector)
+
+// Metadata is the predicate function for metadata builders.
+type Metadata func(*sql.Selector)
+
+// Node is the predicate function for node builders.
+type Node func(*sql.Selector)
+
+// Pet is the predicate function for pet builders.
+type Pet func(*sql.Selector)
+
+// Post is the predicate function for post builders.
+type Post func(*sql.Selector)
+
+// Rental is the predicate function for rental builders.
+type Rental func(*sql.Selector)
+
+// User is the predicate function for user builders.
+type User func(*sql.Selector)

entc/integration/edgefield/ent/rental.go

@@ -0,0 +1,181 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"github.com/google/uuid"
+)
+
+// Rental is the model entity for the Rental schema.
+type Rental struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Date holds the value of the "date" field.
+	Date time.Time `json:"date,omitempty"`
+	// UserID holds the value of the "user_id" field.
+	UserID int `json:"user_id,omitempty"`
+	// CarID holds the value of the "car_id" field.
+	CarID uuid.UUID `json:"car_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the RentalQuery when eager-loading is set.
+	Edges        RentalEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// RentalEdges holds the relations/edges for other nodes in the graph.
+type RentalEdges struct {
+	// User holds the value of the user edge.
+	User *User `json:"user,omitempty"`
+	// Car holds the value of the car edge.
+	Car *Car `json:"car,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [2]bool
+}
+
+// UserOrErr returns the User value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e RentalEdges) UserOrErr() (*User, error) {
+	if e.User != nil {
+		return e.User, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "user"}
+}
+
+// CarOrErr returns the Car value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e RentalEdges) CarOrErr() (*Car, error) {
+	if e.Car != nil {
+		return e.Car, nil
+	} else if e.loadedTypes[1] {
+		return nil, &NotFoundError{label: car.Label}
+	}
+	return nil, &NotLoadedError{edge: "car"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Rental) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case rental.FieldID, rental.FieldUserID:
+			values[i] = new(sql.NullInt64)
+		case rental.FieldDate:
+			values[i] = new(sql.NullTime)
+		case rental.FieldCarID:
+			values[i] = new(uuid.UUID)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Rental fields.
+func (_m *Rental) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case rental.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case rental.FieldDate:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field date", values[i])
+			} else if value.Valid {
+				_m.Date = value.Time
+			}
+		case rental.FieldUserID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field user_id", values[i])
+			} else if value.Valid {
+				_m.UserID = int(value.Int64)
+			}
+		case rental.FieldCarID:
+			if value, ok := values[i].(*uuid.UUID); !ok {
+				return fmt.Errorf("unexpected type %T for field car_id", values[i])
+			} else if value != nil {
+				_m.CarID = *value
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Rental.
+// This includes values selected through modifiers, order, etc.
+func (_m *Rental) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryUser queries the "user" edge of the Rental entity.
+func (_m *Rental) QueryUser() *UserQuery {
+	return NewRentalClient(_m.config).QueryUser(_m)
+}
+
+// QueryCar queries the "car" edge of the Rental entity.
+func (_m *Rental) QueryCar() *CarQuery {
+	return NewRentalClient(_m.config).QueryCar(_m)
+}
+
+// Update returns a builder for updating this Rental.
+// Note that you need to call Rental.Unwrap() before calling this method if this Rental
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Rental) Update() *RentalUpdateOne {
+	return NewRentalClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Rental entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Rental) Unwrap() *Rental {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Rental is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Rental) String() string {
+	var builder strings.Builder
+	builder.WriteString("Rental(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("date=")
+	builder.WriteString(_m.Date.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("user_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.UserID))
+	builder.WriteString(", ")
+	builder.WriteString("car_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.CarID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Rentals is a parsable slice of Rental.
+type Rentals []*Rental

entc/integration/edgefield/ent/rental/mutation.go

@@ -0,0 +1,408 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package rental
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"github.com/google/uuid"
+)
+
+// Mutation represents an operation that mutates the Rental nodes in the graph.
+type Mutation struct {
+	op            ent.Op
+	typ           string
+	date          *time.Time
+	clearedFields map[string]struct{}
+	user          *int
+	cleareduser   bool
+	car           *uuid.UUID
+	clearedcar    bool
+	predicates    []predicate.Rental
+}
+
+// NewMutation creates a new Mutation for the Rental entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "Rental",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.Rental {
+	return m.predicates
+}
+
+// SetDate sets the "date" field.
+func (m *Mutation) SetDate(t time.Time) {
+	m.date = &t
+}
+
+// Date returns the value of the "date" field in the mutation.
+func (m *Mutation) Date() (r time.Time, exists bool) {
+	v := m.date
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetDate resets all changes to the "date" field.
+func (m *Mutation) ResetDate() {
+	m.date = nil
+}
+
+// SetUserID sets the "user_id" field.
+func (m *Mutation) SetUserID(i int) {
+	m.user = &i
+}
+
+// UserID returns the value of the "user_id" field in the mutation.
+func (m *Mutation) UserID() (r int, exists bool) {
+	v := m.user
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetUserID resets all changes to the "user_id" field.
+func (m *Mutation) ResetUserID() {
+	m.user = nil
+}
+
+// SetCarID sets the "car_id" field.
+func (m *Mutation) SetCarID(u uuid.UUID) {
+	m.car = &u
+}
+
+// CarID returns the value of the "car_id" field in the mutation.
+func (m *Mutation) CarID() (r uuid.UUID, exists bool) {
+	v := m.car
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetCarID resets all changes to the "car_id" field.
+func (m *Mutation) ResetCarID() {
+	m.car = nil
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (m *Mutation) ClearUser() {
+	m.cleareduser = true
+	m.clearedFields[FieldUserID] = struct{}{}
+}
+
+// UserCleared reports if the "user" edge to the User entity was cleared.
+func (m *Mutation) UserCleared() bool {
+	return m.cleareduser
+}
+
+// UserIDs returns the "user" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// UserID instead. It exists only for internal usage by the builders.
+func (m *Mutation) UserIDs() (ids []int) {
+	if id := m.user; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetUser resets all changes to the "user" edge.
+func (m *Mutation) ResetUser() {
+	m.user = nil
+	m.cleareduser = false
+}
+
+// ClearCar clears the "car" edge to the Car entity.
+func (m *Mutation) ClearCar() {
+	m.clearedcar = true
+	m.clearedFields[FieldCarID] = struct{}{}
+}
+
+// CarCleared reports if the "car" edge to the Car entity was cleared.
+func (m *Mutation) CarCleared() bool {
+	return m.clearedcar
+}
+
+// CarIDs returns the "car" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// CarID instead. It exists only for internal usage by the builders.
+func (m *Mutation) CarIDs() (ids []uuid.UUID) {
+	if id := m.car; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetCar resets all changes to the "car" edge.
+func (m *Mutation) ResetCar() {
+	m.car = nil
+	m.clearedcar = false
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.Rental) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Rental, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Rental).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 3)
+	if m.date != nil {
+		fields = append(fields, FieldDate)
+	}
+	if m.user != nil {
+		fields = append(fields, FieldUserID)
+	}
+	if m.car != nil {
+		fields = append(fields, FieldCarID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldDate:
+		return m.Date()
+	case FieldUserID:
+		return m.UserID()
+	case FieldCarID:
+		return m.CarID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown Rental field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldDate:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetDate(v)
+		return nil
+	case FieldUserID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetUserID(v)
+		return nil
+	case FieldCarID:
+		v, ok := value.(uuid.UUID)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetCarID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Rental field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Rental numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	return nil
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	return fmt.Errorf("unknown Rental nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldDate:
+		m.ResetDate()
+		return nil
+	case FieldUserID:
+		m.ResetUserID()
+		return nil
+	case FieldCarID:
+		m.ResetCarID()
+		return nil
+	}
+	return fmt.Errorf("unknown Rental field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 2)
+	if m.user != nil {
+		edges = append(edges, EdgeUser)
+	}
+	if m.car != nil {
+		edges = append(edges, EdgeCar)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgeUser:
+		if id := m.user; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeCar:
+		if id := m.car; id != nil {
+			return []ent.Value{*id}
+		}
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 2)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 2)
+	if m.cleareduser {
+		edges = append(edges, EdgeUser)
+	}
+	if m.clearedcar {
+		edges = append(edges, EdgeCar)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgeUser:
+		return m.cleareduser
+	case EdgeCar:
+		return m.clearedcar
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ClearUser()
+		return nil
+	case EdgeCar:
+		m.ClearCar()
+		return nil
+	}
+	return fmt.Errorf("unknown Rental unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgeUser:
+		m.ResetUser()
+		return nil
+	case EdgeCar:
+		m.ResetCar()
+		return nil
+	}
+	return fmt.Errorf("unknown Rental edge %s", name)
+}

entc/integration/edgefield/ent/rental/rental.go

@@ -0,0 +1,121 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package rental
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the rental type in the database.
+	Label = "rental"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldDate holds the string denoting the date field in the database.
+	FieldDate = "date"
+	// FieldUserID holds the string denoting the user_id field in the database.
+	FieldUserID = "user_id"
+	// FieldCarID holds the string denoting the car_id field in the database.
+	FieldCarID = "car_id"
+	// EdgeUser holds the string denoting the user edge name in mutations.
+	EdgeUser = "user"
+	// EdgeCar holds the string denoting the car edge name in mutations.
+	EdgeCar = "car"
+	// Table holds the table name of the rental in the database.
+	Table = "rentals"
+	// UserTable is the table that holds the user relation/edge.
+	UserTable = "rentals"
+	// UserInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	UserInverseTable = "users"
+	// UserColumn is the table column denoting the user relation/edge.
+	UserColumn = "user_id"
+	// CarTable is the table that holds the car relation/edge.
+	CarTable = "rentals"
+	// CarInverseTable is the table name for the Car entity.
+	// It exists in this package in order to avoid circular dependency with the "car" package.
+	CarInverseTable = "cars"
+	// CarColumn is the table column denoting the car relation/edge.
+	CarColumn = "car_id"
+)
+
+// Columns holds all SQL columns for rental fields.
+var Columns = []string{
+	FieldID,
+	FieldDate,
+	FieldUserID,
+	FieldCarID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultDate holds the default value on creation for the "date" field.
+	DefaultDate func() time.Time
+)
+
+// OrderOption defines the ordering options for the Rental queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByDate orders the results by the date field.
+func ByDate(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldDate, opts...).ToFunc()
+}
+
+// ByUserID orders the results by the user_id field.
+func ByUserID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUserID, opts...).ToFunc()
+}
+
+// ByCarID orders the results by the car_id field.
+func ByCarID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCarID, opts...).ToFunc()
+}
+
+// ByUserField orders the results by user field.
+func ByUserField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newUserStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByCarField orders the results by car field.
+func ByCarField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newCarStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newUserStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(UserInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, UserTable, UserColumn),
+	)
+}
+func newCarStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(CarInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, CarTable, CarColumn),
+	)
+}

entc/integration/edgefield/ent/rental/where.go

@@ -0,0 +1,217 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package rental
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"github.com/google/uuid"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Rental {
+	return predicate.Rental(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Rental {
+	return predicate.Rental(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Rental {
+	return predicate.Rental(sql.FieldLTE(FieldID, id))
+}
+
+// Date applies equality check predicate on the "date" field. It's identical to DateEQ.
+func Date(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldDate, v))
+}
+
+// UserID applies equality check predicate on the "user_id" field. It's identical to UserIDEQ.
+func UserID(v int) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldUserID, v))
+}
+
+// CarID applies equality check predicate on the "car_id" field. It's identical to CarIDEQ.
+func CarID(v uuid.UUID) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldCarID, v))
+}
+
+// DateEQ applies the EQ predicate on the "date" field.
+func DateEQ(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldDate, v))
+}
+
+// DateNEQ applies the NEQ predicate on the "date" field.
+func DateNEQ(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldNEQ(FieldDate, v))
+}
+
+// DateIn applies the In predicate on the "date" field.
+func DateIn(vs ...time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldIn(FieldDate, vs...))
+}
+
+// DateNotIn applies the NotIn predicate on the "date" field.
+func DateNotIn(vs ...time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldNotIn(FieldDate, vs...))
+}
+
+// DateGT applies the GT predicate on the "date" field.
+func DateGT(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldGT(FieldDate, v))
+}
+
+// DateGTE applies the GTE predicate on the "date" field.
+func DateGTE(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldGTE(FieldDate, v))
+}
+
+// DateLT applies the LT predicate on the "date" field.
+func DateLT(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldLT(FieldDate, v))
+}
+
+// DateLTE applies the LTE predicate on the "date" field.
+func DateLTE(v time.Time) predicate.Rental {
+	return predicate.Rental(sql.FieldLTE(FieldDate, v))
+}
+
+// UserIDEQ applies the EQ predicate on the "user_id" field.
+func UserIDEQ(v int) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldUserID, v))
+}
+
+// UserIDNEQ applies the NEQ predicate on the "user_id" field.
+func UserIDNEQ(v int) predicate.Rental {
+	return predicate.Rental(sql.FieldNEQ(FieldUserID, v))
+}
+
+// UserIDIn applies the In predicate on the "user_id" field.
+func UserIDIn(vs ...int) predicate.Rental {
+	return predicate.Rental(sql.FieldIn(FieldUserID, vs...))
+}
+
+// UserIDNotIn applies the NotIn predicate on the "user_id" field.
+func UserIDNotIn(vs ...int) predicate.Rental {
+	return predicate.Rental(sql.FieldNotIn(FieldUserID, vs...))
+}
+
+// CarIDEQ applies the EQ predicate on the "car_id" field.
+func CarIDEQ(v uuid.UUID) predicate.Rental {
+	return predicate.Rental(sql.FieldEQ(FieldCarID, v))
+}
+
+// CarIDNEQ applies the NEQ predicate on the "car_id" field.
+func CarIDNEQ(v uuid.UUID) predicate.Rental {
+	return predicate.Rental(sql.FieldNEQ(FieldCarID, v))
+}
+
+// CarIDIn applies the In predicate on the "car_id" field.
+func CarIDIn(vs ...uuid.UUID) predicate.Rental {
+	return predicate.Rental(sql.FieldIn(FieldCarID, vs...))
+}
+
+// CarIDNotIn applies the NotIn predicate on the "car_id" field.
+func CarIDNotIn(vs ...uuid.UUID) predicate.Rental {
+	return predicate.Rental(sql.FieldNotIn(FieldCarID, vs...))
+}
+
+// HasUser applies the HasEdge predicate on the "user" edge.
+func HasUser() predicate.Rental {
+	return predicate.Rental(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, UserTable, UserColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasUserWith applies the HasEdge predicate on the "user" edge with a given conditions (other predicates).
+func HasUserWith(preds ...predicate.User) predicate.Rental {
+	return predicate.Rental(func(s *sql.Selector) {
+		step := newUserStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasCar applies the HasEdge predicate on the "car" edge.
+func HasCar() predicate.Rental {
+	return predicate.Rental(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, CarTable, CarColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasCarWith applies the HasEdge predicate on the "car" edge with a given conditions (other predicates).
+func HasCarWith(preds ...predicate.Car) predicate.Rental {
+	return predicate.Rental(func(s *sql.Selector) {
+		step := newCarStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Rental) predicate.Rental {
+	return predicate.Rental(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Rental) predicate.Rental {
+	return predicate.Rental(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Rental) predicate.Rental {
+	return predicate.Rental(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/rental_create.go

@@ -0,0 +1,277 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// RentalCreate is the builder for creating a Rental entity.
+type RentalCreate struct {
+	config
+	mutation *RentalMutation
+	hooks    []Hook
+}
+
+// SetDate sets the "date" field.
+func (_c *RentalCreate) SetDate(v time.Time) *RentalCreate {
+	_c.mutation.SetDate(v)
+	return _c
+}
+
+// SetNillableDate sets the "date" field if the given value is not nil.
+func (_c *RentalCreate) SetNillableDate(v *time.Time) *RentalCreate {
+	if v != nil {
+		_c.SetDate(*v)
+	}
+	return _c
+}
+
+// SetUserID sets the "user_id" field.
+func (_c *RentalCreate) SetUserID(v int) *RentalCreate {
+	_c.mutation.SetUserID(v)
+	return _c
+}
+
+// SetCarID sets the "car_id" field.
+func (_c *RentalCreate) SetCarID(v uuid.UUID) *RentalCreate {
+	_c.mutation.SetCarID(v)
+	return _c
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_c *RentalCreate) SetUser(v *User) *RentalCreate {
+	return _c.SetUserID(v.ID)
+}
+
+// SetCar sets the "car" edge to the Car entity.
+func (_c *RentalCreate) SetCar(v *Car) *RentalCreate {
+	return _c.SetCarID(v.ID)
+}
+
+// Mutation returns the RentalMutation object of the builder.
+func (_c *RentalCreate) Mutation() *RentalMutation {
+	return _c.mutation
+}
+
+// Save creates the Rental in the database.
+func (_c *RentalCreate) Save(ctx context.Context) (*Rental, error) {
+	_c.defaults()
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *RentalCreate) SaveX(ctx context.Context) *Rental {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *RentalCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *RentalCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *RentalCreate) defaults() {
+	if _, ok := _c.mutation.Date(); !ok {
+		v := rental.DefaultDate()
+		_c.mutation.SetDate(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *RentalCreate) check() error {
+	if _, ok := _c.mutation.Date(); !ok {
+		return &ValidationError{Name: "date", err: errors.New(`ent: missing required field "Rental.date"`)}
+	}
+	if _, ok := _c.mutation.UserID(); !ok {
+		return &ValidationError{Name: "user_id", err: errors.New(`ent: missing required field "Rental.user_id"`)}
+	}
+	if _, ok := _c.mutation.CarID(); !ok {
+		return &ValidationError{Name: "car_id", err: errors.New(`ent: missing required field "Rental.car_id"`)}
+	}
+	if len(_c.mutation.UserIDs()) == 0 {
+		return &ValidationError{Name: "user", err: errors.New(`ent: missing required edge "Rental.user"`)}
+	}
+	if len(_c.mutation.CarIDs()) == 0 {
+		return &ValidationError{Name: "car", err: errors.New(`ent: missing required edge "Rental.car"`)}
+	}
+	return nil
+}
+
+func (_c *RentalCreate) sqlSave(ctx context.Context) (*Rental, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *RentalCreate) createSpec() (*Rental, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Rental{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(rental.Table, sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt))
+	)
+	if value, ok := _c.mutation.Date(); ok {
+		_spec.SetField(rental.FieldDate, field.TypeTime, value)
+		_node.Date = value
+	}
+	if nodes := _c.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   rental.UserTable,
+			Columns: []string{rental.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.UserID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.CarIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   rental.CarTable,
+			Columns: []string{rental.CarColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(car.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.CarID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// RentalCreateBulk is the builder for creating many Rental entities in bulk.
+type RentalCreateBulk struct {
+	config
+	err      error
+	builders []*RentalCreate
+}
+
+// Save creates the Rental entities in the database.
+func (_c *RentalCreateBulk) Save(ctx context.Context) ([]*Rental, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Rental, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*RentalMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *RentalCreateBulk) SaveX(ctx context.Context) []*Rental {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *RentalCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *RentalCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/rental_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/schema/field"
+)
+
+// RentalDelete is the builder for deleting a Rental entity.
+type RentalDelete struct {
+	config
+	hooks    []Hook
+	mutation *RentalMutation
+}
+
+// Where appends a list predicates to the RentalDelete builder.
+func (_d *RentalDelete) Where(ps ...predicate.Rental) *RentalDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *RentalDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *RentalDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *RentalDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(rental.Table, sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// RentalDeleteOne is the builder for deleting a single Rental entity.
+type RentalDeleteOne struct {
+	_d *RentalDelete
+}
+
+// Where appends a list predicates to the RentalDelete builder.
+func (_d *RentalDeleteOne) Where(ps ...predicate.Rental) *RentalDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *RentalDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{rental.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *RentalDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/rental_query.go

@@ -0,0 +1,686 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// RentalQuery is the builder for querying Rental entities.
+type RentalQuery struct {
+	config
+	ctx        *QueryContext
+	order      []rental.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Rental
+	withUser   *UserQuery
+	withCar    *CarQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the RentalQuery builder.
+func (_q *RentalQuery) Where(ps ...predicate.Rental) *RentalQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *RentalQuery) Limit(limit int) *RentalQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *RentalQuery) Offset(offset int) *RentalQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *RentalQuery) Unique(unique bool) *RentalQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *RentalQuery) Order(o ...rental.OrderOption) *RentalQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryUser chains the current query on the "user" edge.
+func (_q *RentalQuery) QueryUser() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(rental.Table, rental.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, rental.UserTable, rental.UserColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// QueryCar chains the current query on the "car" edge.
+func (_q *RentalQuery) QueryCar() *CarQuery {
+	query := (&CarClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(rental.Table, rental.FieldID, selector),
+			sqlgraph.To(car.Table, car.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, rental.CarTable, rental.CarColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Rental entity from the query.
+// Returns a *NotFoundError when no Rental was found.
+func (_q *RentalQuery) First(ctx context.Context) (*Rental, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{rental.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *RentalQuery) FirstX(ctx context.Context) *Rental {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Rental ID from the query.
+// Returns a *NotFoundError when no Rental ID was found.
+func (_q *RentalQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{rental.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *RentalQuery) FirstIDX(ctx context.Context) int {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Rental entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Rental entity is found.
+// Returns a *NotFoundError when no Rental entities are found.
+func (_q *RentalQuery) Only(ctx context.Context) (*Rental, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{rental.Label}
+	default:
+		return nil, &NotSingularError{rental.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *RentalQuery) OnlyX(ctx context.Context) *Rental {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Rental ID in the query.
+// Returns a *NotSingularError when more than one Rental ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *RentalQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{rental.Label}
+	default:
+		err = &NotSingularError{rental.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *RentalQuery) OnlyIDX(ctx context.Context) int {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Rentals.
+func (_q *RentalQuery) All(ctx context.Context) ([]*Rental, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Rental, *RentalQuery]()
+	return withInterceptors[[]*Rental](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *RentalQuery) AllX(ctx context.Context) []*Rental {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Rental IDs.
+func (_q *RentalQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(rental.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *RentalQuery) IDsX(ctx context.Context) []int {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *RentalQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*RentalQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *RentalQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *RentalQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *RentalQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the RentalQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *RentalQuery) Clone() *RentalQuery {
+	if _q == nil {
+		return nil
+	}
+	return &RentalQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]rental.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Rental{}, _q.predicates...),
+		withUser:   _q.withUser.Clone(),
+		withCar:    _q.withCar.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithUser tells the query-builder to eager-load the nodes that are connected to
+// the "user" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *RentalQuery) WithUser(opts ...func(*UserQuery)) *RentalQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withUser = query
+	return _q
+}
+
+// WithCar tells the query-builder to eager-load the nodes that are connected to
+// the "car" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *RentalQuery) WithCar(opts ...func(*CarQuery)) *RentalQuery {
+	query := (&CarClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withCar = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Date time.Time `json:"date,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Rental.Query().
+//		GroupBy(rental.FieldDate).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *RentalQuery) GroupBy(field string, fields ...string) *RentalGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &RentalGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = rental.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Date time.Time `json:"date,omitempty"`
+//	}
+//
+//	client.Rental.Query().
+//		Select(rental.FieldDate).
+//		Scan(ctx, &v)
+func (_q *RentalQuery) Select(fields ...string) *RentalSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &RentalSelect{RentalQuery: _q}
+	sbuild.label = rental.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a RentalSelect configured with the given aggregations.
+func (_q *RentalQuery) Aggregate(fns ...AggregateFunc) *RentalSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *RentalQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !rental.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *RentalQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Rental, error) {
+	var (
+		nodes       = []*Rental{}
+		_spec       = _q.querySpec()
+		loadedTypes = [2]bool{
+			_q.withUser != nil,
+			_q.withCar != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Rental).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Rental{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withUser; query != nil {
+		if err := _q.loadUser(ctx, query, nodes, nil,
+			func(n *Rental, e *User) { n.Edges.User = e }); err != nil {
+			return nil, err
+		}
+	}
+	if query := _q.withCar; query != nil {
+		if err := _q.loadCar(ctx, query, nodes, nil,
+			func(n *Rental, e *Car) { n.Edges.Car = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *RentalQuery) loadUser(ctx context.Context, query *UserQuery, nodes []*Rental, init func(*Rental), assign func(*Rental, *User)) error {
+	ids := make([]int, 0, len(nodes))
+	nodeids := make(map[int][]*Rental)
+	for i := range nodes {
+		fk := nodes[i].UserID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "user_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+func (_q *RentalQuery) loadCar(ctx context.Context, query *CarQuery, nodes []*Rental, init func(*Rental), assign func(*Rental, *Car)) error {
+	ids := make([]uuid.UUID, 0, len(nodes))
+	nodeids := make(map[uuid.UUID][]*Rental)
+	for i := range nodes {
+		fk := nodes[i].CarID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(car.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "car_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *RentalQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *RentalQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(rental.Table, rental.Columns, sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, rental.FieldID)
+		for i := range fields {
+			if fields[i] != rental.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withUser != nil {
+			_spec.Node.AddColumnOnce(rental.FieldUserID)
+		}
+		if _q.withCar != nil {
+			_spec.Node.AddColumnOnce(rental.FieldCarID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *RentalQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(rental.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = rental.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// RentalGroupBy is the group-by builder for Rental entities.
+type RentalGroupBy struct {
+	selector
+	build *RentalQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *RentalGroupBy) Aggregate(fns ...AggregateFunc) *RentalGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *RentalGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*RentalQuery, *RentalGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *RentalGroupBy) sqlScan(ctx context.Context, root *RentalQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// RentalSelect is the builder for selecting fields of Rental entities.
+type RentalSelect struct {
+	*RentalQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *RentalSelect) Aggregate(fns ...AggregateFunc) *RentalSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *RentalSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*RentalQuery, *RentalSelect](ctx, _s.RentalQuery, _s, _s.inters, v)
+}
+
+func (_s *RentalSelect) sqlScan(ctx context.Context, root *RentalQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

entc/integration/edgefield/ent/rental_update.go

@@ -0,0 +1,242 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/schema/field"
+)
+
+// RentalUpdate is the builder for updating Rental entities.
+type RentalUpdate struct {
+	config
+	hooks    []Hook
+	mutation *RentalMutation
+}
+
+// Where appends a list predicates to the RentalUpdate builder.
+func (_u *RentalUpdate) Where(ps ...predicate.Rental) *RentalUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetDate sets the "date" field.
+func (_u *RentalUpdate) SetDate(v time.Time) *RentalUpdate {
+	_u.mutation.SetDate(v)
+	return _u
+}
+
+// SetNillableDate sets the "date" field if the given value is not nil.
+func (_u *RentalUpdate) SetNillableDate(v *time.Time) *RentalUpdate {
+	if v != nil {
+		_u.SetDate(*v)
+	}
+	return _u
+}
+
+// Mutation returns the RentalMutation object of the builder.
+func (_u *RentalUpdate) Mutation() *RentalMutation {
+	return _u.mutation
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *RentalUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *RentalUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *RentalUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *RentalUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *RentalUpdate) check() error {
+	if _u.mutation.UserCleared() && len(_u.mutation.UserIDs()) > 0 {
+		return errors.New(`ent: clearing a required unique edge "Rental.user"`)
+	}
+	if _u.mutation.CarCleared() && len(_u.mutation.CarIDs()) > 0 {
+		return errors.New(`ent: clearing a required unique edge "Rental.car"`)
+	}
+	return nil
+}
+
+func (_u *RentalUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(rental.Table, rental.Columns, sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt))
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Date(); ok {
+		_spec.SetField(rental.FieldDate, field.TypeTime, value)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{rental.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// RentalUpdateOne is the builder for updating a single Rental entity.
+type RentalUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *RentalMutation
+}
+
+// SetDate sets the "date" field.
+func (_u *RentalUpdateOne) SetDate(v time.Time) *RentalUpdateOne {
+	_u.mutation.SetDate(v)
+	return _u
+}
+
+// SetNillableDate sets the "date" field if the given value is not nil.
+func (_u *RentalUpdateOne) SetNillableDate(v *time.Time) *RentalUpdateOne {
+	if v != nil {
+		_u.SetDate(*v)
+	}
+	return _u
+}
+
+// Mutation returns the RentalMutation object of the builder.
+func (_u *RentalUpdateOne) Mutation() *RentalMutation {
+	return _u.mutation
+}
+
+// Where appends a list predicates to the RentalUpdate builder.
+func (_u *RentalUpdateOne) Where(ps ...predicate.Rental) *RentalUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *RentalUpdateOne) Select(field string, fields ...string) *RentalUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Rental entity.
+func (_u *RentalUpdateOne) Save(ctx context.Context) (*Rental, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *RentalUpdateOne) SaveX(ctx context.Context) *Rental {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *RentalUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *RentalUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *RentalUpdateOne) check() error {
+	if _u.mutation.UserCleared() && len(_u.mutation.UserIDs()) > 0 {
+		return errors.New(`ent: clearing a required unique edge "Rental.user"`)
+	}
+	if _u.mutation.CarCleared() && len(_u.mutation.CarIDs()) > 0 {
+		return errors.New(`ent: clearing a required unique edge "Rental.car"`)
+	}
+	return nil
+}
+
+func (_u *RentalUpdateOne) sqlSave(ctx context.Context) (_node *Rental, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(rental.Table, rental.Columns, sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Rental.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, rental.FieldID)
+		for _, f := range fields {
+			if !rental.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != rental.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Date(); ok {
+		_spec.SetField(rental.FieldDate, field.TypeTime, value)
+	}
+	_node = &Rental{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{rental.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

entc/integration/edgefield/ent/runtime.go

@@ -0,0 +1,48 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"time"
+
+	"entgo.io/ent/entc/integration/edgefield/ent/car"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/node"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/schema"
+	"github.com/google/uuid"
+)
+
+// The init function reads all schema descriptors with runtime code
+// (default values, validators, hooks and policies) and stitches it
+// to their package variables.
+func init() {
+	carFields := schema.Car{}.Fields()
+	_ = carFields
+	// carDescID is the schema descriptor for id field.
+	carDescID := carFields[0].Descriptor()
+	// car.DefaultID holds the default value on creation for the id field.
+	car.DefaultID = carDescID.Default.(func() uuid.UUID)
+	metadataFields := schema.Metadata{}.Fields()
+	_ = metadataFields
+	// metadataDescAge is the schema descriptor for age field.
+	metadataDescAge := metadataFields[1].Descriptor()
+	// metadata.DefaultAge holds the default value on creation for the age field.
+	metadata.DefaultAge = metadataDescAge.Default.(int)
+	nodeFields := schema.Node{}.Fields()
+	_ = nodeFields
+	// nodeDescValue is the schema descriptor for value field.
+	nodeDescValue := nodeFields[0].Descriptor()
+	// node.DefaultValue holds the default value on creation for the value field.
+	node.DefaultValue = nodeDescValue.Default.(int)
+	rentalFields := schema.Rental{}.Fields()
+	_ = rentalFields
+	// rentalDescDate is the schema descriptor for date field.
+	rentalDescDate := rentalFields[0].Descriptor()
+	// rental.DefaultDate holds the default value on creation for the date field.
+	rental.DefaultDate = rentalDescDate.Default.(func() time.Time)
+}

entc/integration/edgefield/ent/runtime/runtime.go

@@ -0,0 +1,13 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in entgo.io/ent/entc/integration/edgefield/ent/runtime.go
+
+const (
+	Version = "v0.0.0-00010101000000-000000000000" // Version of ent codegen.
+)

entc/integration/edgefield/ent/schema/car.go

@@ -0,0 +1,34 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// Car holds the schema definition for the Car entity.
+type Car struct {
+	ent.Schema
+}
+
+// Fields of the Car.
+func (Car) Fields() []ent.Field {
+	return []ent.Field{
+		field.UUID("id", uuid.UUID{}).
+			Default(uuid.New),
+		field.String("number").
+			Optional(),
+	}
+}
+
+// Edges of the Car.
+func (Car) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("rentals", Rental.Type),
+	}
+}

entc/integration/edgefield/ent/schema/card.go

@@ -0,0 +1,44 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// Card holds the schema definition for the Card entity.
+type Card struct {
+	ent.Schema
+}
+
+// Fields of the Card.
+func (Card) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("number").
+			Optional(),
+		field.Int("owner_id").
+			Optional(),
+	}
+}
+
+// Edges of the Card.
+func (Card) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("owner", User.Type).
+			Ref("card").
+			Field("owner_id").
+			Unique(),
+	}
+}
+
+// Indexes of the Card.
+func (Card) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("number", "owner_id"),
+	}
+}

entc/integration/edgefield/ent/schema/info.go

@@ -0,0 +1,33 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"encoding/json"
+
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// Info holds the schema definition for the Info entity.
+type Info struct {
+	ent.Schema
+}
+
+func (Info) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("id"),
+		field.JSON("content", json.RawMessage{}),
+	}
+}
+
+func (Info) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("user", User.Type).
+			Unique().
+			StorageKey(edge.Column("id")),
+	}
+}

entc/integration/edgefield/ent/schema/metadata.go

@@ -0,0 +1,37 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// Metadata holds the schema definition for the Metadata entity.
+type Metadata struct {
+	ent.Schema
+}
+
+func (Metadata) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("id"),
+		field.Int("age").
+			Default(0),
+		field.Int("parent_id").
+			Optional(),
+	}
+}
+func (Metadata) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("user", User.Type).
+			Ref("metadata").
+			Unique(),
+		edge.To("parent", Metadata.Type).
+			Field("parent_id").
+			Unique().
+			From("children"),
+	}
+}

entc/integration/edgefield/ent/schema/node.go

@@ -0,0 +1,37 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// Node holds the schema definition for the Node entity.
+type Node struct {
+	ent.Schema
+}
+
+// Fields of the Node.
+func (Node) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("value").
+			Default(0),
+		field.Int("prev_id").
+			Optional(),
+	}
+}
+
+// Edges of the Node.
+func (Node) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("next", Node.Type).
+			Unique().
+			From("prev").
+			Field("prev_id").
+			Unique(),
+	}
+}

entc/integration/edgefield/ent/schema/pet.go

@@ -0,0 +1,34 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// Pet holds the schema definition for the Pet entity.
+type Pet struct {
+	ent.Schema
+}
+
+// Fields of the Pet.
+func (Pet) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("owner_id").
+			Optional(),
+	}
+}
+
+// Edges of the Dog.
+func (Pet) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("owner", User.Type).
+			Ref("pets").
+			Field("owner_id").
+			Unique(),
+	}
+}

entc/integration/edgefield/ent/schema/post.go

@@ -0,0 +1,43 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// Post holds the schema definition for the Post entity.
+type Post struct {
+	ent.Schema
+}
+
+// Fields of the Post.
+func (Post) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("text"),
+		field.Int("author_id").
+			Optional().
+			Nillable(),
+	}
+}
+
+// Edges of the Post.
+func (Post) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("author", User.Type).
+			Field("author_id").
+			Unique(),
+	}
+}
+
+// Indexes of the Post.
+func (Post) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("author_id", "text"),
+	}
+}

entc/integration/edgefield/ent/schema/rental.go

@@ -0,0 +1,59 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// Rental holds the schema definition for the Rental entity.
+type Rental struct {
+	ent.Schema
+}
+
+// Fields of the Rental.
+func (Rental) Fields() []ent.Field {
+	return []ent.Field{
+		field.Time("date").
+			Default(time.Now),
+		field.Int("user_id").
+			Immutable(),
+		field.UUID("car_id", uuid.UUID{}).
+			Immutable(),
+	}
+}
+
+// Edges of the Rental.
+func (Rental) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("user", User.Type).
+			Ref("rentals").
+			Field("user_id").
+			Unique().
+			Required().
+			Immutable(),
+		edge.From("car", Car.Type).
+			Ref("rentals").
+			Field("car_id").
+			Unique().
+			Required().
+			Immutable(),
+	}
+}
+
+// Indexes of the Rental.
+func (Rental) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("car_id", "user_id").
+			Unique(),
+	}
+}

entc/integration/edgefield/ent/schema/user.go

@@ -0,0 +1,57 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// User holds the schema definition for the User entity.
+type User struct {
+	ent.Schema
+}
+
+// Fields of the User.
+func (User) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("id").
+			SchemaType(map[string]string{
+				dialect.SQLite: "integer",
+			}).
+			Immutable(),
+		field.Int("parent_id").
+			Optional().
+			Immutable(),
+		field.Int("spouse_id").
+			Optional(),
+	}
+}
+
+// Edges of the User.
+func (User) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("pets", Pet.Type),
+		edge.To("children", User.Type).
+			From("parent").
+			Field("parent_id").
+			Immutable().
+			Comment("The parent edge and its field are immutable").
+			Unique(),
+		edge.To("spouse", User.Type).
+			Field("spouse_id").
+			Unique(),
+		edge.To("card", Card.Type).
+			Unique(),
+		edge.To("metadata", Metadata.Type).
+			Unique().
+			StorageKey(edge.Column("id")),
+		edge.From("info", Info.Type).
+			Ref("user"),
+		edge.To("rentals", Rental.Type),
+	}
+}

entc/integration/edgefield/ent/tx.go

@@ -0,0 +1,238 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"sync"
+
+	"entgo.io/ent/dialect"
+)
+
+// Tx is a transactional client that is created by calling Client.Tx().
+type Tx struct {
+	config
+	// Car is the client for interacting with the Car builders.
+	Car *CarClient
+	// Card is the client for interacting with the Card builders.
+	Card *CardClient
+	// Info is the client for interacting with the Info builders.
+	Info *InfoClient
+	// Metadata is the client for interacting with the Metadata builders.
+	Metadata *MetadataClient
+	// Node is the client for interacting with the Node builders.
+	Node *NodeClient
+	// Pet is the client for interacting with the Pet builders.
+	Pet *PetClient
+	// Post is the client for interacting with the Post builders.
+	Post *PostClient
+	// Rental is the client for interacting with the Rental builders.
+	Rental *RentalClient
+	// User is the client for interacting with the User builders.
+	User *UserClient
+
+	// lazily loaded.
+	client     *Client
+	clientOnce sync.Once
+	// ctx lives for the life of the transaction. It is
+	// the same context used by the underlying connection.
+	ctx context.Context
+}
+
+type (
+	// Committer is the interface that wraps the Commit method.
+	Committer interface {
+		Commit(context.Context, *Tx) error
+	}
+
+	// The CommitFunc type is an adapter to allow the use of ordinary
+	// function as a Committer. If f is a function with the appropriate
+	// signature, CommitFunc(f) is a Committer that calls f.
+	CommitFunc func(context.Context, *Tx) error
+
+	// CommitHook defines the "commit middleware". A function that gets a Committer
+	// and returns a Committer. For example:
+	//
+	//	hook := func(next ent.Committer) ent.Committer {
+	//		return ent.CommitFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Commit(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	CommitHook func(Committer) Committer
+)
+
+// Commit calls f(ctx, m).
+func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Commit commits the transaction.
+func (tx *Tx) Commit() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Committer = CommitFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Commit()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]CommitHook(nil), txDriver.onCommit...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Commit(tx.ctx, tx)
+}
+
+// OnCommit adds a hook to call on commit.
+func (tx *Tx) OnCommit(f CommitHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onCommit = append(txDriver.onCommit, f)
+	txDriver.mu.Unlock()
+}
+
+type (
+	// Rollbacker is the interface that wraps the Rollback method.
+	Rollbacker interface {
+		Rollback(context.Context, *Tx) error
+	}
+
+	// The RollbackFunc type is an adapter to allow the use of ordinary
+	// function as a Rollbacker. If f is a function with the appropriate
+	// signature, RollbackFunc(f) is a Rollbacker that calls f.
+	RollbackFunc func(context.Context, *Tx) error
+
+	// RollbackHook defines the "rollback middleware". A function that gets a Rollbacker
+	// and returns a Rollbacker. For example:
+	//
+	//	hook := func(next ent.Rollbacker) ent.Rollbacker {
+	//		return ent.RollbackFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Rollback(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	RollbackHook func(Rollbacker) Rollbacker
+)
+
+// Rollback calls f(ctx, m).
+func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Rollback rollbacks the transaction.
+func (tx *Tx) Rollback() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Rollbacker = RollbackFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Rollback()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]RollbackHook(nil), txDriver.onRollback...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Rollback(tx.ctx, tx)
+}
+
+// OnRollback adds a hook to call on rollback.
+func (tx *Tx) OnRollback(f RollbackHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onRollback = append(txDriver.onRollback, f)
+	txDriver.mu.Unlock()
+}
+
+// Client returns a Client that binds to current transaction.
+func (tx *Tx) Client() *Client {
+	tx.clientOnce.Do(func() {
+		tx.client = &Client{config: tx.config}
+		tx.client.init()
+	})
+	return tx.client
+}
+
+func (tx *Tx) init() {
+	tx.Car = NewCarClient(tx.config)
+	tx.Card = NewCardClient(tx.config)
+	tx.Info = NewInfoClient(tx.config)
+	tx.Metadata = NewMetadataClient(tx.config)
+	tx.Node = NewNodeClient(tx.config)
+	tx.Pet = NewPetClient(tx.config)
+	tx.Post = NewPostClient(tx.config)
+	tx.Rental = NewRentalClient(tx.config)
+	tx.User = NewUserClient(tx.config)
+}
+
+// txDriver wraps the given dialect.Tx with a nop dialect.Driver implementation.
+// The idea is to support transactions without adding any extra code to the builders.
+// When a builder calls to driver.Tx(), it gets the same dialect.Tx instance.
+// Commit and Rollback are nop for the internal builders and the user must call one
+// of them in order to commit or rollback the transaction.
+//
+// If a closed transaction is embedded in one of the generated entities, and the entity
+// applies a query, for example: Car.QueryXXX(), the query will be executed
+// through the driver which created this transaction.
+//
+// Note that txDriver is not goroutine safe.
+type txDriver struct {
+	// the driver we started the transaction from.
+	drv dialect.Driver
+	// tx is the underlying transaction.
+	tx dialect.Tx
+	// completion hooks.
+	mu         sync.Mutex
+	onCommit   []CommitHook
+	onRollback []RollbackHook
+}
+
+// newTx creates a new transactional driver.
+func newTx(ctx context.Context, drv dialect.Driver) (*txDriver, error) {
+	tx, err := drv.Tx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &txDriver{tx: tx, drv: drv}, nil
+}
+
+// Tx returns the transaction wrapper (txDriver) to avoid Commit or Rollback calls
+// from the internal builders. Should be called only by the internal builders.
+func (tx *txDriver) Tx(context.Context) (dialect.Tx, error) { return tx, nil }
+
+// Dialect returns the dialect of the driver we started the transaction from.
+func (tx *txDriver) Dialect() string { return tx.drv.Dialect() }
+
+// Close is a nop close.
+func (*txDriver) Close() error { return nil }
+
+// Commit is a nop commit for the internal builders.
+// User must call `Tx.Commit` in order to commit the transaction.
+func (*txDriver) Commit() error { return nil }
+
+// Rollback is a nop rollback for the internal builders.
+// User must call `Tx.Rollback` in order to rollback the transaction.
+func (*txDriver) Rollback() error { return nil }
+
+// Exec calls tx.Exec.
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Exec(ctx, query, args, v)
+}
+
+// Query calls tx.Query.
+func (tx *txDriver) Query(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Query(ctx, query, args, v)
+}
+
+var _ dialect.Driver = (*txDriver)(nil)

entc/integration/edgefield/ent/user.go

@@ -0,0 +1,364 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+)
+
+// User is the model entity for the User schema.
+type User struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// ParentID holds the value of the "parent_id" field.
+	ParentID int `json:"parent_id,omitempty"`
+	// SpouseID holds the value of the "spouse_id" field.
+	SpouseID int `json:"spouse_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the UserQuery when eager-loading is set.
+	Edges        UserEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// UserEdges holds the relations/edges for other nodes in the graph.
+type UserEdges struct {
+	// Pets holds the value of the pets edge.
+	Pets []*Pet `json:"pets,omitempty"`
+	// The parent edge and its field are immutable
+	Parent *User `json:"parent,omitempty"`
+	// Children holds the value of the children edge.
+	Children []*User `json:"children,omitempty"`
+	// Spouse holds the value of the spouse edge.
+	Spouse *User `json:"spouse,omitempty"`
+	// Card holds the value of the card edge.
+	Card *Card `json:"card,omitempty"`
+	// Metadata holds the value of the metadata edge.
+	Metadata *Metadata `json:"metadata,omitempty"`
+	// Info holds the value of the info edge.
+	Info []*Info `json:"info,omitempty"`
+	// Rentals holds the value of the rentals edge.
+	Rentals []*Rental `json:"rentals,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes   [8]bool
+	namedPets     map[string][]*Pet
+	namedChildren map[string][]*User
+	namedInfo     map[string][]*Info
+	namedRentals  map[string][]*Rental
+}
+
+// PetsOrErr returns the Pets value or an error if the edge
+// was not loaded in eager-loading.
+func (e UserEdges) PetsOrErr() ([]*Pet, error) {
+	if e.loadedTypes[0] {
+		return e.Pets, nil
+	}
+	return nil, &NotLoadedError{edge: "pets"}
+}
+
+// ParentOrErr returns the Parent value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e UserEdges) ParentOrErr() (*User, error) {
+	if e.Parent != nil {
+		return e.Parent, nil
+	} else if e.loadedTypes[1] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "parent"}
+}
+
+// ChildrenOrErr returns the Children value or an error if the edge
+// was not loaded in eager-loading.
+func (e UserEdges) ChildrenOrErr() ([]*User, error) {
+	if e.loadedTypes[2] {
+		return e.Children, nil
+	}
+	return nil, &NotLoadedError{edge: "children"}
+}
+
+// SpouseOrErr returns the Spouse value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e UserEdges) SpouseOrErr() (*User, error) {
+	if e.Spouse != nil {
+		return e.Spouse, nil
+	} else if e.loadedTypes[3] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "spouse"}
+}
+
+// CardOrErr returns the Card value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e UserEdges) CardOrErr() (*Card, error) {
+	if e.Card != nil {
+		return e.Card, nil
+	} else if e.loadedTypes[4] {
+		return nil, &NotFoundError{label: card.Label}
+	}
+	return nil, &NotLoadedError{edge: "card"}
+}
+
+// MetadataOrErr returns the Metadata value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e UserEdges) MetadataOrErr() (*Metadata, error) {
+	if e.Metadata != nil {
+		return e.Metadata, nil
+	} else if e.loadedTypes[5] {
+		return nil, &NotFoundError{label: metadata.Label}
+	}
+	return nil, &NotLoadedError{edge: "metadata"}
+}
+
+// InfoOrErr returns the Info value or an error if the edge
+// was not loaded in eager-loading.
+func (e UserEdges) InfoOrErr() ([]*Info, error) {
+	if e.loadedTypes[6] {
+		return e.Info, nil
+	}
+	return nil, &NotLoadedError{edge: "info"}
+}
+
+// RentalsOrErr returns the Rentals value or an error if the edge
+// was not loaded in eager-loading.
+func (e UserEdges) RentalsOrErr() ([]*Rental, error) {
+	if e.loadedTypes[7] {
+		return e.Rentals, nil
+	}
+	return nil, &NotLoadedError{edge: "rentals"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*User) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case user.FieldID, user.FieldParentID, user.FieldSpouseID:
+			values[i] = new(sql.NullInt64)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the User fields.
+func (_m *User) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case user.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int(value.Int64)
+		case user.FieldParentID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field parent_id", values[i])
+			} else if value.Valid {
+				_m.ParentID = int(value.Int64)
+			}
+		case user.FieldSpouseID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field spouse_id", values[i])
+			} else if value.Valid {
+				_m.SpouseID = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the User.
+// This includes values selected through modifiers, order, etc.
+func (_m *User) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryPets queries the "pets" edge of the User entity.
+func (_m *User) QueryPets() *PetQuery {
+	return NewUserClient(_m.config).QueryPets(_m)
+}
+
+// QueryParent queries the "parent" edge of the User entity.
+func (_m *User) QueryParent() *UserQuery {
+	return NewUserClient(_m.config).QueryParent(_m)
+}
+
+// QueryChildren queries the "children" edge of the User entity.
+func (_m *User) QueryChildren() *UserQuery {
+	return NewUserClient(_m.config).QueryChildren(_m)
+}
+
+// QuerySpouse queries the "spouse" edge of the User entity.
+func (_m *User) QuerySpouse() *UserQuery {
+	return NewUserClient(_m.config).QuerySpouse(_m)
+}
+
+// QueryCard queries the "card" edge of the User entity.
+func (_m *User) QueryCard() *CardQuery {
+	return NewUserClient(_m.config).QueryCard(_m)
+}
+
+// QueryMetadata queries the "metadata" edge of the User entity.
+func (_m *User) QueryMetadata() *MetadataQuery {
+	return NewUserClient(_m.config).QueryMetadata(_m)
+}
+
+// QueryInfo queries the "info" edge of the User entity.
+func (_m *User) QueryInfo() *InfoQuery {
+	return NewUserClient(_m.config).QueryInfo(_m)
+}
+
+// QueryRentals queries the "rentals" edge of the User entity.
+func (_m *User) QueryRentals() *RentalQuery {
+	return NewUserClient(_m.config).QueryRentals(_m)
+}
+
+// Update returns a builder for updating this User.
+// Note that you need to call User.Unwrap() before calling this method if this User
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *User) Update() *UserUpdateOne {
+	return NewUserClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the User entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *User) Unwrap() *User {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: User is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *User) String() string {
+	var builder strings.Builder
+	builder.WriteString("User(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("parent_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.ParentID))
+	builder.WriteString(", ")
+	builder.WriteString("spouse_id=")
+	builder.WriteString(fmt.Sprintf("%v", _m.SpouseID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// NamedPets returns the Pets named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *User) NamedPets(name string) ([]*Pet, error) {
+	if _m.Edges.namedPets == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedPets[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *User) appendNamedPets(name string, edges ...*Pet) {
+	if _m.Edges.namedPets == nil {
+		_m.Edges.namedPets = make(map[string][]*Pet)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedPets[name] = []*Pet{}
+	} else {
+		_m.Edges.namedPets[name] = append(_m.Edges.namedPets[name], edges...)
+	}
+}
+
+// NamedChildren returns the Children named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *User) NamedChildren(name string) ([]*User, error) {
+	if _m.Edges.namedChildren == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedChildren[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *User) appendNamedChildren(name string, edges ...*User) {
+	if _m.Edges.namedChildren == nil {
+		_m.Edges.namedChildren = make(map[string][]*User)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedChildren[name] = []*User{}
+	} else {
+		_m.Edges.namedChildren[name] = append(_m.Edges.namedChildren[name], edges...)
+	}
+}
+
+// NamedInfo returns the Info named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *User) NamedInfo(name string) ([]*Info, error) {
+	if _m.Edges.namedInfo == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedInfo[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *User) appendNamedInfo(name string, edges ...*Info) {
+	if _m.Edges.namedInfo == nil {
+		_m.Edges.namedInfo = make(map[string][]*Info)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedInfo[name] = []*Info{}
+	} else {
+		_m.Edges.namedInfo[name] = append(_m.Edges.namedInfo[name], edges...)
+	}
+}
+
+// NamedRentals returns the Rentals named value or an error if the edge was not
+// loaded in eager-loading with this name.
+func (_m *User) NamedRentals(name string) ([]*Rental, error) {
+	if _m.Edges.namedRentals == nil {
+		return nil, &NotLoadedError{edge: name}
+	}
+	nodes, ok := _m.Edges.namedRentals[name]
+	if !ok {
+		return nil, &NotLoadedError{edge: name}
+	}
+	return nodes, nil
+}
+
+func (_m *User) appendNamedRentals(name string, edges ...*Rental) {
+	if _m.Edges.namedRentals == nil {
+		_m.Edges.namedRentals = make(map[string][]*Rental)
+	}
+	if len(edges) == 0 {
+		_m.Edges.namedRentals[name] = []*Rental{}
+	} else {
+		_m.Edges.namedRentals[name] = append(_m.Edges.namedRentals[name], edges...)
+	}
+}
+
+// Users is a parsable slice of User.
+type Users []*User

entc/integration/edgefield/ent/user/mutation.go

@@ -0,0 +1,864 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package user
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the User nodes in the graph.
+type Mutation struct {
+	op              ent.Op
+	typ             string
+	clearedFields   map[string]struct{}
+	pets            map[int]struct{}
+	removedpets     map[int]struct{}
+	clearedpets     bool
+	parent          *int
+	clearedparent   bool
+	children        map[int]struct{}
+	removedchildren map[int]struct{}
+	clearedchildren bool
+	spouse          *int
+	clearedspouse   bool
+	card            *int
+	clearedcard     bool
+	metadata        *int
+	clearedmetadata bool
+	info            map[int]struct{}
+	removedinfo     map[int]struct{}
+	clearedinfo     bool
+	rentals         map[int]struct{}
+	removedrentals  map[int]struct{}
+	clearedrentals  bool
+	predicates      []predicate.User
+}
+
+// NewMutation creates a new Mutation for the User entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "User",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.User {
+	return m.predicates
+}
+
+// SetParentID sets the "parent_id" field.
+func (m *Mutation) SetParentID(i int) {
+	m.parent = &i
+}
+
+// ParentID returns the value of the "parent_id" field in the mutation.
+func (m *Mutation) ParentID() (r int, exists bool) {
+	v := m.parent
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearParentID clears the value of the "parent_id" field.
+func (m *Mutation) ClearParentID() {
+	m.parent = nil
+	m.clearedFields[FieldParentID] = struct{}{}
+}
+
+// ParentIDCleared returns if the "parent_id" field was cleared in this mutation.
+func (m *Mutation) ParentIDCleared() bool {
+	_, ok := m.clearedFields[FieldParentID]
+	return ok
+}
+
+// ResetParentID resets all changes to the "parent_id" field.
+func (m *Mutation) ResetParentID() {
+	m.parent = nil
+	delete(m.clearedFields, FieldParentID)
+}
+
+// SetSpouseID sets the "spouse_id" field.
+func (m *Mutation) SetSpouseID(i int) {
+	m.spouse = &i
+}
+
+// SpouseID returns the value of the "spouse_id" field in the mutation.
+func (m *Mutation) SpouseID() (r int, exists bool) {
+	v := m.spouse
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearSpouseID clears the value of the "spouse_id" field.
+func (m *Mutation) ClearSpouseID() {
+	m.spouse = nil
+	m.clearedFields[FieldSpouseID] = struct{}{}
+}
+
+// SpouseIDCleared returns if the "spouse_id" field was cleared in this mutation.
+func (m *Mutation) SpouseIDCleared() bool {
+	_, ok := m.clearedFields[FieldSpouseID]
+	return ok
+}
+
+// ResetSpouseID resets all changes to the "spouse_id" field.
+func (m *Mutation) ResetSpouseID() {
+	m.spouse = nil
+	delete(m.clearedFields, FieldSpouseID)
+}
+
+// AddPetIDs adds the "pets" edge to the Pet entity by ids.
+func (m *Mutation) AddPetIDs(ids ...int) {
+	if m.pets == nil {
+		m.pets = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.pets[ids[i]] = struct{}{}
+	}
+}
+
+// ClearPets clears the "pets" edge to the Pet entity.
+func (m *Mutation) ClearPets() {
+	m.clearedpets = true
+}
+
+// PetsCleared reports if the "pets" edge to the Pet entity was cleared.
+func (m *Mutation) PetsCleared() bool {
+	return m.clearedpets
+}
+
+// RemovePetIDs removes the "pets" edge to the Pet entity by IDs.
+func (m *Mutation) RemovePetIDs(ids ...int) {
+	if m.removedpets == nil {
+		m.removedpets = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.pets, ids[i])
+		m.removedpets[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedPets returns the removed IDs of the "pets" edge to the Pet entity.
+func (m *Mutation) RemovedPetsIDs() (ids []int) {
+	for id := range m.removedpets {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// PetsIDs returns the "pets" edge IDs in the mutation.
+func (m *Mutation) PetsIDs() (ids []int) {
+	for id := range m.pets {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetPets resets all changes to the "pets" edge.
+func (m *Mutation) ResetPets() {
+	m.pets = nil
+	m.clearedpets = false
+	m.removedpets = nil
+}
+
+// ClearParent clears the "parent" edge to the User entity.
+func (m *Mutation) ClearParent() {
+	m.clearedparent = true
+	m.clearedFields[FieldParentID] = struct{}{}
+}
+
+// ParentCleared reports if the "parent" edge to the User entity was cleared.
+func (m *Mutation) ParentCleared() bool {
+	return m.ParentIDCleared() || m.clearedparent
+}
+
+// ParentIDs returns the "parent" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// ParentID instead. It exists only for internal usage by the builders.
+func (m *Mutation) ParentIDs() (ids []int) {
+	if id := m.parent; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetParent resets all changes to the "parent" edge.
+func (m *Mutation) ResetParent() {
+	m.parent = nil
+	m.clearedparent = false
+}
+
+// AddChildIDs adds the "children" edge to the User entity by ids.
+func (m *Mutation) AddChildIDs(ids ...int) {
+	if m.children == nil {
+		m.children = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.children[ids[i]] = struct{}{}
+	}
+}
+
+// ClearChildren clears the "children" edge to the User entity.
+func (m *Mutation) ClearChildren() {
+	m.clearedchildren = true
+}
+
+// ChildrenCleared reports if the "children" edge to the User entity was cleared.
+func (m *Mutation) ChildrenCleared() bool {
+	return m.clearedchildren
+}
+
+// RemoveChildIDs removes the "children" edge to the User entity by IDs.
+func (m *Mutation) RemoveChildIDs(ids ...int) {
+	if m.removedchildren == nil {
+		m.removedchildren = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.children, ids[i])
+		m.removedchildren[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedChildren returns the removed IDs of the "children" edge to the User entity.
+func (m *Mutation) RemovedChildrenIDs() (ids []int) {
+	for id := range m.removedchildren {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ChildrenIDs returns the "children" edge IDs in the mutation.
+func (m *Mutation) ChildrenIDs() (ids []int) {
+	for id := range m.children {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetChildren resets all changes to the "children" edge.
+func (m *Mutation) ResetChildren() {
+	m.children = nil
+	m.clearedchildren = false
+	m.removedchildren = nil
+}
+
+// ClearSpouse clears the "spouse" edge to the User entity.
+func (m *Mutation) ClearSpouse() {
+	m.clearedspouse = true
+	m.clearedFields[FieldSpouseID] = struct{}{}
+}
+
+// SpouseCleared reports if the "spouse" edge to the User entity was cleared.
+func (m *Mutation) SpouseCleared() bool {
+	return m.SpouseIDCleared() || m.clearedspouse
+}
+
+// SpouseIDs returns the "spouse" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// SpouseID instead. It exists only for internal usage by the builders.
+func (m *Mutation) SpouseIDs() (ids []int) {
+	if id := m.spouse; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetSpouse resets all changes to the "spouse" edge.
+func (m *Mutation) ResetSpouse() {
+	m.spouse = nil
+	m.clearedspouse = false
+}
+
+// SetCardID sets the "card" edge to the Card entity by id.
+func (m *Mutation) SetCardID(id int) {
+	m.card = &id
+}
+
+// ClearCard clears the "card" edge to the Card entity.
+func (m *Mutation) ClearCard() {
+	m.clearedcard = true
+}
+
+// CardCleared reports if the "card" edge to the Card entity was cleared.
+func (m *Mutation) CardCleared() bool {
+	return m.clearedcard
+}
+
+// CardID returns the "card" edge ID in the mutation.
+func (m *Mutation) CardID() (id int, exists bool) {
+	if m.card != nil {
+		return *m.card, true
+	}
+	return
+}
+
+// CardIDs returns the "card" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// CardID instead. It exists only for internal usage by the builders.
+func (m *Mutation) CardIDs() (ids []int) {
+	if id := m.card; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetCard resets all changes to the "card" edge.
+func (m *Mutation) ResetCard() {
+	m.card = nil
+	m.clearedcard = false
+}
+
+// SetMetadataID sets the "metadata" edge to the Metadata entity by id.
+func (m *Mutation) SetMetadataID(id int) {
+	m.metadata = &id
+}
+
+// ClearMetadata clears the "metadata" edge to the Metadata entity.
+func (m *Mutation) ClearMetadata() {
+	m.clearedmetadata = true
+}
+
+// MetadataCleared reports if the "metadata" edge to the Metadata entity was cleared.
+func (m *Mutation) MetadataCleared() bool {
+	return m.clearedmetadata
+}
+
+// MetadataID returns the "metadata" edge ID in the mutation.
+func (m *Mutation) MetadataID() (id int, exists bool) {
+	if m.metadata != nil {
+		return *m.metadata, true
+	}
+	return
+}
+
+// MetadataIDs returns the "metadata" edge IDs in the mutation.
+// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
+// MetadataID instead. It exists only for internal usage by the builders.
+func (m *Mutation) MetadataIDs() (ids []int) {
+	if id := m.metadata; id != nil {
+		ids = append(ids, *id)
+	}
+	return
+}
+
+// ResetMetadata resets all changes to the "metadata" edge.
+func (m *Mutation) ResetMetadata() {
+	m.metadata = nil
+	m.clearedmetadata = false
+}
+
+// AddInfoIDs adds the "info" edge to the Info entity by ids.
+func (m *Mutation) AddInfoIDs(ids ...int) {
+	if m.info == nil {
+		m.info = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.info[ids[i]] = struct{}{}
+	}
+}
+
+// ClearInfo clears the "info" edge to the Info entity.
+func (m *Mutation) ClearInfo() {
+	m.clearedinfo = true
+}
+
+// InfoCleared reports if the "info" edge to the Info entity was cleared.
+func (m *Mutation) InfoCleared() bool {
+	return m.clearedinfo
+}
+
+// RemoveInfoIDs removes the "info" edge to the Info entity by IDs.
+func (m *Mutation) RemoveInfoIDs(ids ...int) {
+	if m.removedinfo == nil {
+		m.removedinfo = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.info, ids[i])
+		m.removedinfo[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedInfo returns the removed IDs of the "info" edge to the Info entity.
+func (m *Mutation) RemovedInfoIDs() (ids []int) {
+	for id := range m.removedinfo {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// InfoIDs returns the "info" edge IDs in the mutation.
+func (m *Mutation) InfoIDs() (ids []int) {
+	for id := range m.info {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetInfo resets all changes to the "info" edge.
+func (m *Mutation) ResetInfo() {
+	m.info = nil
+	m.clearedinfo = false
+	m.removedinfo = nil
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by ids.
+func (m *Mutation) AddRentalIDs(ids ...int) {
+	if m.rentals == nil {
+		m.rentals = make(map[int]struct{})
+	}
+	for i := range ids {
+		m.rentals[ids[i]] = struct{}{}
+	}
+}
+
+// ClearRentals clears the "rentals" edge to the Rental entity.
+func (m *Mutation) ClearRentals() {
+	m.clearedrentals = true
+}
+
+// RentalsCleared reports if the "rentals" edge to the Rental entity was cleared.
+func (m *Mutation) RentalsCleared() bool {
+	return m.clearedrentals
+}
+
+// RemoveRentalIDs removes the "rentals" edge to the Rental entity by IDs.
+func (m *Mutation) RemoveRentalIDs(ids ...int) {
+	if m.removedrentals == nil {
+		m.removedrentals = make(map[int]struct{})
+	}
+	for i := range ids {
+		delete(m.rentals, ids[i])
+		m.removedrentals[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedRentals returns the removed IDs of the "rentals" edge to the Rental entity.
+func (m *Mutation) RemovedRentalsIDs() (ids []int) {
+	for id := range m.removedrentals {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// RentalsIDs returns the "rentals" edge IDs in the mutation.
+func (m *Mutation) RentalsIDs() (ids []int) {
+	for id := range m.rentals {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetRentals resets all changes to the "rentals" edge.
+func (m *Mutation) ResetRentals() {
+	m.rentals = nil
+	m.clearedrentals = false
+	m.removedrentals = nil
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.User) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the Mutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.User, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *Mutation) Op() ent.Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *Mutation) SetOp(op ent.Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (User).
+func (m *Mutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *Mutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.parent != nil {
+		fields = append(fields, FieldParentID)
+	}
+	if m.spouse != nil {
+		fields = append(fields, FieldSpouseID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *Mutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case FieldParentID:
+		return m.ParentID()
+	case FieldSpouseID:
+		return m.SpouseID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	return nil, fmt.Errorf("unknown User field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case FieldParentID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetParentID(v)
+		return nil
+	case FieldSpouseID:
+		v, ok := value.(int)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetSpouseID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown User field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *Mutation) AddedFields() []string {
+	var fields []string
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *Mutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *Mutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown User numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *Mutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(FieldParentID) {
+		fields = append(fields, FieldParentID)
+	}
+	if m.FieldCleared(FieldSpouseID) {
+		fields = append(fields, FieldSpouseID)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *Mutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *Mutation) ClearField(name string) error {
+	switch name {
+	case FieldParentID:
+		m.ClearParentID()
+		return nil
+	case FieldSpouseID:
+		m.ClearSpouseID()
+		return nil
+	}
+	return fmt.Errorf("unknown User nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *Mutation) ResetField(name string) error {
+	switch name {
+	case FieldParentID:
+		m.ResetParentID()
+		return nil
+	case FieldSpouseID:
+		m.ResetSpouseID()
+		return nil
+	}
+	return fmt.Errorf("unknown User field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *Mutation) AddedEdges() []string {
+	edges := make([]string, 0, 8)
+	if m.pets != nil {
+		edges = append(edges, EdgePets)
+	}
+	if m.parent != nil {
+		edges = append(edges, EdgeParent)
+	}
+	if m.children != nil {
+		edges = append(edges, EdgeChildren)
+	}
+	if m.spouse != nil {
+		edges = append(edges, EdgeSpouse)
+	}
+	if m.card != nil {
+		edges = append(edges, EdgeCard)
+	}
+	if m.metadata != nil {
+		edges = append(edges, EdgeMetadata)
+	}
+	if m.info != nil {
+		edges = append(edges, EdgeInfo)
+	}
+	if m.rentals != nil {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *Mutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case EdgePets:
+		ids := make([]ent.Value, 0, len(m.pets))
+		for id := range m.pets {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeParent:
+		if id := m.parent; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeChildren:
+		ids := make([]ent.Value, 0, len(m.children))
+		for id := range m.children {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeSpouse:
+		if id := m.spouse; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeCard:
+		if id := m.card; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeMetadata:
+		if id := m.metadata; id != nil {
+			return []ent.Value{*id}
+		}
+	case EdgeInfo:
+		ids := make([]ent.Value, 0, len(m.info))
+		for id := range m.info {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeRentals:
+		ids := make([]ent.Value, 0, len(m.rentals))
+		for id := range m.rentals {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 8)
+	if m.removedpets != nil {
+		edges = append(edges, EdgePets)
+	}
+	if m.removedchildren != nil {
+		edges = append(edges, EdgeChildren)
+	}
+	if m.removedinfo != nil {
+		edges = append(edges, EdgeInfo)
+	}
+	if m.removedrentals != nil {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *Mutation) RemovedIDs(name string) []ent.Value {
+	switch name {
+	case EdgePets:
+		ids := make([]ent.Value, 0, len(m.removedpets))
+		for id := range m.removedpets {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeChildren:
+		ids := make([]ent.Value, 0, len(m.removedchildren))
+		for id := range m.removedchildren {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeInfo:
+		ids := make([]ent.Value, 0, len(m.removedinfo))
+		for id := range m.removedinfo {
+			ids = append(ids, id)
+		}
+		return ids
+	case EdgeRentals:
+		ids := make([]ent.Value, 0, len(m.removedrentals))
+		for id := range m.removedrentals {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *Mutation) ClearedEdges() []string {
+	edges := make([]string, 0, 8)
+	if m.clearedpets {
+		edges = append(edges, EdgePets)
+	}
+	if m.clearedparent {
+		edges = append(edges, EdgeParent)
+	}
+	if m.clearedchildren {
+		edges = append(edges, EdgeChildren)
+	}
+	if m.clearedspouse {
+		edges = append(edges, EdgeSpouse)
+	}
+	if m.clearedcard {
+		edges = append(edges, EdgeCard)
+	}
+	if m.clearedmetadata {
+		edges = append(edges, EdgeMetadata)
+	}
+	if m.clearedinfo {
+		edges = append(edges, EdgeInfo)
+	}
+	if m.clearedrentals {
+		edges = append(edges, EdgeRentals)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *Mutation) EdgeCleared(name string) bool {
+	switch name {
+	case EdgePets:
+		return m.clearedpets
+	case EdgeParent:
+		return m.clearedparent
+	case EdgeChildren:
+		return m.clearedchildren
+	case EdgeSpouse:
+		return m.clearedspouse
+	case EdgeCard:
+		return m.clearedcard
+	case EdgeMetadata:
+		return m.clearedmetadata
+	case EdgeInfo:
+		return m.clearedinfo
+	case EdgeRentals:
+		return m.clearedrentals
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *Mutation) ClearEdge(name string) error {
+	switch name {
+	case EdgeParent:
+		m.ClearParent()
+		return nil
+	case EdgeSpouse:
+		m.ClearSpouse()
+		return nil
+	case EdgeCard:
+		m.ClearCard()
+		return nil
+	case EdgeMetadata:
+		m.ClearMetadata()
+		return nil
+	}
+	return fmt.Errorf("unknown User unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *Mutation) ResetEdge(name string) error {
+	switch name {
+	case EdgePets:
+		m.ResetPets()
+		return nil
+	case EdgeParent:
+		m.ResetParent()
+		return nil
+	case EdgeChildren:
+		m.ResetChildren()
+		return nil
+	case EdgeSpouse:
+		m.ResetSpouse()
+		return nil
+	case EdgeCard:
+		m.ResetCard()
+		return nil
+	case EdgeMetadata:
+		m.ResetMetadata()
+		return nil
+	case EdgeInfo:
+		m.ResetInfo()
+		return nil
+	case EdgeRentals:
+		m.ResetRentals()
+		return nil
+	}
+	return fmt.Errorf("unknown User edge %s", name)
+}

entc/integration/edgefield/ent/user/user.go

@@ -0,0 +1,263 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package user
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the user type in the database.
+	Label = "user"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldParentID holds the string denoting the parent_id field in the database.
+	FieldParentID = "parent_id"
+	// FieldSpouseID holds the string denoting the spouse_id field in the database.
+	FieldSpouseID = "spouse_id"
+	// EdgePets holds the string denoting the pets edge name in mutations.
+	EdgePets = "pets"
+	// EdgeParent holds the string denoting the parent edge name in mutations.
+	EdgeParent = "parent"
+	// EdgeChildren holds the string denoting the children edge name in mutations.
+	EdgeChildren = "children"
+	// EdgeSpouse holds the string denoting the spouse edge name in mutations.
+	EdgeSpouse = "spouse"
+	// EdgeCard holds the string denoting the card edge name in mutations.
+	EdgeCard = "card"
+	// EdgeMetadata holds the string denoting the metadata edge name in mutations.
+	EdgeMetadata = "metadata"
+	// EdgeInfo holds the string denoting the info edge name in mutations.
+	EdgeInfo = "info"
+	// EdgeRentals holds the string denoting the rentals edge name in mutations.
+	EdgeRentals = "rentals"
+	// Table holds the table name of the user in the database.
+	Table = "users"
+	// PetsTable is the table that holds the pets relation/edge.
+	PetsTable = "pets"
+	// PetsInverseTable is the table name for the Pet entity.
+	// It exists in this package in order to avoid circular dependency with the "pet" package.
+	PetsInverseTable = "pets"
+	// PetsColumn is the table column denoting the pets relation/edge.
+	PetsColumn = "owner_id"
+	// ParentTable is the table that holds the parent relation/edge.
+	ParentTable = "users"
+	// ParentColumn is the table column denoting the parent relation/edge.
+	ParentColumn = "parent_id"
+	// ChildrenTable is the table that holds the children relation/edge.
+	ChildrenTable = "users"
+	// ChildrenColumn is the table column denoting the children relation/edge.
+	ChildrenColumn = "parent_id"
+	// SpouseTable is the table that holds the spouse relation/edge.
+	SpouseTable = "users"
+	// SpouseColumn is the table column denoting the spouse relation/edge.
+	SpouseColumn = "spouse_id"
+	// CardTable is the table that holds the card relation/edge.
+	CardTable = "cards"
+	// CardInverseTable is the table name for the Card entity.
+	// It exists in this package in order to avoid circular dependency with the "card" package.
+	CardInverseTable = "cards"
+	// CardColumn is the table column denoting the card relation/edge.
+	CardColumn = "owner_id"
+	// MetadataTable is the table that holds the metadata relation/edge.
+	MetadataTable = "metadata"
+	// MetadataInverseTable is the table name for the Metadata entity.
+	// It exists in this package in order to avoid circular dependency with the "metadata" package.
+	MetadataInverseTable = "metadata"
+	// MetadataColumn is the table column denoting the metadata relation/edge.
+	MetadataColumn = "id"
+	// InfoTable is the table that holds the info relation/edge.
+	InfoTable = "infos"
+	// InfoInverseTable is the table name for the Info entity.
+	// It exists in this package in order to avoid circular dependency with the "info" package.
+	InfoInverseTable = "infos"
+	// InfoColumn is the table column denoting the info relation/edge.
+	InfoColumn = "id"
+	// RentalsTable is the table that holds the rentals relation/edge.
+	RentalsTable = "rentals"
+	// RentalsInverseTable is the table name for the Rental entity.
+	// It exists in this package in order to avoid circular dependency with the "rental" package.
+	RentalsInverseTable = "rentals"
+	// RentalsColumn is the table column denoting the rentals relation/edge.
+	RentalsColumn = "user_id"
+)
+
+// Columns holds all SQL columns for user fields.
+var Columns = []string{
+	FieldID,
+	FieldParentID,
+	FieldSpouseID,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// OrderOption defines the ordering options for the User queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByParentID orders the results by the parent_id field.
+func ByParentID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldParentID, opts...).ToFunc()
+}
+
+// BySpouseID orders the results by the spouse_id field.
+func BySpouseID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldSpouseID, opts...).ToFunc()
+}
+
+// ByPetsCount orders the results by pets count.
+func ByPetsCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newPetsStep(), opts...)
+	}
+}
+
+// ByPets orders the results by pets terms.
+func ByPets(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newPetsStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+
+// ByParentField orders the results by parent field.
+func ByParentField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newParentStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByChildrenCount orders the results by children count.
+func ByChildrenCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newChildrenStep(), opts...)
+	}
+}
+
+// ByChildren orders the results by children terms.
+func ByChildren(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newChildrenStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+
+// BySpouseField orders the results by spouse field.
+func BySpouseField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newSpouseStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByCardField orders the results by card field.
+func ByCardField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newCardStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByMetadataField orders the results by metadata field.
+func ByMetadataField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newMetadataStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByInfoCount orders the results by info count.
+func ByInfoCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newInfoStep(), opts...)
+	}
+}
+
+// ByInfo orders the results by info terms.
+func ByInfo(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newInfoStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+
+// ByRentalsCount orders the results by rentals count.
+func ByRentalsCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newRentalsStep(), opts...)
+	}
+}
+
+// ByRentals orders the results by rentals terms.
+func ByRentals(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newRentalsStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+func newPetsStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(PetsInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, false, PetsTable, PetsColumn),
+	)
+}
+func newParentStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, ParentTable, ParentColumn),
+	)
+}
+func newChildrenStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, false, ChildrenTable, ChildrenColumn),
+	)
+}
+func newSpouseStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(Table, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, false, SpouseTable, SpouseColumn),
+	)
+}
+func newCardStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(CardInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, false, CardTable, CardColumn),
+	)
+}
+func newMetadataStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(MetadataInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2O, false, MetadataTable, MetadataColumn),
+	)
+}
+func newInfoStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(InfoInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, true, InfoTable, InfoColumn),
+	)
+}
+func newRentalsStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(RentalsInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.O2M, false, RentalsTable, RentalsColumn),
+	)
+}

entc/integration/edgefield/ent/user/where.go

@@ -0,0 +1,327 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package user
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.User {
+	return predicate.User(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.User {
+	return predicate.User(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.User {
+	return predicate.User(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.User {
+	return predicate.User(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.User {
+	return predicate.User(sql.FieldLTE(FieldID, id))
+}
+
+// ParentID applies equality check predicate on the "parent_id" field. It's identical to ParentIDEQ.
+func ParentID(v int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldParentID, v))
+}
+
+// SpouseID applies equality check predicate on the "spouse_id" field. It's identical to SpouseIDEQ.
+func SpouseID(v int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldSpouseID, v))
+}
+
+// ParentIDEQ applies the EQ predicate on the "parent_id" field.
+func ParentIDEQ(v int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldParentID, v))
+}
+
+// ParentIDNEQ applies the NEQ predicate on the "parent_id" field.
+func ParentIDNEQ(v int) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldParentID, v))
+}
+
+// ParentIDIn applies the In predicate on the "parent_id" field.
+func ParentIDIn(vs ...int) predicate.User {
+	return predicate.User(sql.FieldIn(FieldParentID, vs...))
+}
+
+// ParentIDNotIn applies the NotIn predicate on the "parent_id" field.
+func ParentIDNotIn(vs ...int) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldParentID, vs...))
+}
+
+// ParentIDIsNil applies the IsNil predicate on the "parent_id" field.
+func ParentIDIsNil() predicate.User {
+	return predicate.User(sql.FieldIsNull(FieldParentID))
+}
+
+// ParentIDNotNil applies the NotNil predicate on the "parent_id" field.
+func ParentIDNotNil() predicate.User {
+	return predicate.User(sql.FieldNotNull(FieldParentID))
+}
+
+// SpouseIDEQ applies the EQ predicate on the "spouse_id" field.
+func SpouseIDEQ(v int) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldSpouseID, v))
+}
+
+// SpouseIDNEQ applies the NEQ predicate on the "spouse_id" field.
+func SpouseIDNEQ(v int) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldSpouseID, v))
+}
+
+// SpouseIDIn applies the In predicate on the "spouse_id" field.
+func SpouseIDIn(vs ...int) predicate.User {
+	return predicate.User(sql.FieldIn(FieldSpouseID, vs...))
+}
+
+// SpouseIDNotIn applies the NotIn predicate on the "spouse_id" field.
+func SpouseIDNotIn(vs ...int) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldSpouseID, vs...))
+}
+
+// SpouseIDIsNil applies the IsNil predicate on the "spouse_id" field.
+func SpouseIDIsNil() predicate.User {
+	return predicate.User(sql.FieldIsNull(FieldSpouseID))
+}
+
+// SpouseIDNotNil applies the NotNil predicate on the "spouse_id" field.
+func SpouseIDNotNil() predicate.User {
+	return predicate.User(sql.FieldNotNull(FieldSpouseID))
+}
+
+// HasPets applies the HasEdge predicate on the "pets" edge.
+func HasPets() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, false, PetsTable, PetsColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasPetsWith applies the HasEdge predicate on the "pets" edge with a given conditions (other predicates).
+func HasPetsWith(preds ...predicate.Pet) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newPetsStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasParent applies the HasEdge predicate on the "parent" edge.
+func HasParent() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, ParentTable, ParentColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasParentWith applies the HasEdge predicate on the "parent" edge with a given conditions (other predicates).
+func HasParentWith(preds ...predicate.User) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newParentStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasChildren applies the HasEdge predicate on the "children" edge.
+func HasChildren() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, false, ChildrenTable, ChildrenColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasChildrenWith applies the HasEdge predicate on the "children" edge with a given conditions (other predicates).
+func HasChildrenWith(preds ...predicate.User) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newChildrenStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasSpouse applies the HasEdge predicate on the "spouse" edge.
+func HasSpouse() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, false, SpouseTable, SpouseColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasSpouseWith applies the HasEdge predicate on the "spouse" edge with a given conditions (other predicates).
+func HasSpouseWith(preds ...predicate.User) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newSpouseStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasCard applies the HasEdge predicate on the "card" edge.
+func HasCard() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, false, CardTable, CardColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasCardWith applies the HasEdge predicate on the "card" edge with a given conditions (other predicates).
+func HasCardWith(preds ...predicate.Card) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newCardStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasMetadata applies the HasEdge predicate on the "metadata" edge.
+func HasMetadata() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2O, false, MetadataTable, MetadataColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasMetadataWith applies the HasEdge predicate on the "metadata" edge with a given conditions (other predicates).
+func HasMetadataWith(preds ...predicate.Metadata) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newMetadataStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasInfo applies the HasEdge predicate on the "info" edge.
+func HasInfo() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, true, InfoTable, InfoColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasInfoWith applies the HasEdge predicate on the "info" edge with a given conditions (other predicates).
+func HasInfoWith(preds ...predicate.Info) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newInfoStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasRentals applies the HasEdge predicate on the "rentals" edge.
+func HasRentals() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.O2M, false, RentalsTable, RentalsColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasRentalsWith applies the HasEdge predicate on the "rentals" edge with a given conditions (other predicates).
+func HasRentalsWith(preds ...predicate.Rental) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newRentalsStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.User) predicate.User {
+	return predicate.User(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.User) predicate.User {
+	return predicate.User(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.User) predicate.User {
+	return predicate.User(sql.NotPredicates(p))
+}

entc/integration/edgefield/ent/user_create.go

@@ -0,0 +1,456 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/card"
+	"entgo.io/ent/entc/integration/edgefield/ent/info"
+	"entgo.io/ent/entc/integration/edgefield/ent/metadata"
+	"entgo.io/ent/entc/integration/edgefield/ent/pet"
+	"entgo.io/ent/entc/integration/edgefield/ent/rental"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// UserCreate is the builder for creating a User entity.
+type UserCreate struct {
+	config
+	mutation *UserMutation
+	hooks    []Hook
+}
+
+// SetParentID sets the "parent_id" field.
+func (_c *UserCreate) SetParentID(v int) *UserCreate {
+	_c.mutation.SetParentID(v)
+	return _c
+}
+
+// SetNillableParentID sets the "parent_id" field if the given value is not nil.
+func (_c *UserCreate) SetNillableParentID(v *int) *UserCreate {
+	if v != nil {
+		_c.SetParentID(*v)
+	}
+	return _c
+}
+
+// SetSpouseID sets the "spouse_id" field.
+func (_c *UserCreate) SetSpouseID(v int) *UserCreate {
+	_c.mutation.SetSpouseID(v)
+	return _c
+}
+
+// SetNillableSpouseID sets the "spouse_id" field if the given value is not nil.
+func (_c *UserCreate) SetNillableSpouseID(v *int) *UserCreate {
+	if v != nil {
+		_c.SetSpouseID(*v)
+	}
+	return _c
+}
+
+// SetID sets the "id" field.
+func (_c *UserCreate) SetID(v int) *UserCreate {
+	_c.mutation.SetID(v)
+	return _c
+}
+
+// AddPetIDs adds the "pets" edge to the Pet entity by IDs.
+func (_c *UserCreate) AddPetIDs(ids ...int) *UserCreate {
+	_c.mutation.AddPetIDs(ids...)
+	return _c
+}
+
+// AddPets adds the "pets" edges to the Pet entity.
+func (_c *UserCreate) AddPets(v ...*Pet) *UserCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddPetIDs(ids...)
+}
+
+// SetParent sets the "parent" edge to the User entity.
+func (_c *UserCreate) SetParent(v *User) *UserCreate {
+	return _c.SetParentID(v.ID)
+}
+
+// AddChildIDs adds the "children" edge to the User entity by IDs.
+func (_c *UserCreate) AddChildIDs(ids ...int) *UserCreate {
+	_c.mutation.AddChildIDs(ids...)
+	return _c
+}
+
+// AddChildren adds the "children" edges to the User entity.
+func (_c *UserCreate) AddChildren(v ...*User) *UserCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddChildIDs(ids...)
+}
+
+// SetSpouse sets the "spouse" edge to the User entity.
+func (_c *UserCreate) SetSpouse(v *User) *UserCreate {
+	return _c.SetSpouseID(v.ID)
+}
+
+// SetCardID sets the "card" edge to the Card entity by ID.
+func (_c *UserCreate) SetCardID(id int) *UserCreate {
+	_c.mutation.SetCardID(id)
+	return _c
+}
+
+// SetNillableCardID sets the "card" edge to the Card entity by ID if the given value is not nil.
+func (_c *UserCreate) SetNillableCardID(id *int) *UserCreate {
+	if id != nil {
+		_c = _c.SetCardID(*id)
+	}
+	return _c
+}
+
+// SetCard sets the "card" edge to the Card entity.
+func (_c *UserCreate) SetCard(v *Card) *UserCreate {
+	return _c.SetCardID(v.ID)
+}
+
+// SetMetadataID sets the "metadata" edge to the Metadata entity by ID.
+func (_c *UserCreate) SetMetadataID(id int) *UserCreate {
+	_c.mutation.SetMetadataID(id)
+	return _c
+}
+
+// SetNillableMetadataID sets the "metadata" edge to the Metadata entity by ID if the given value is not nil.
+func (_c *UserCreate) SetNillableMetadataID(id *int) *UserCreate {
+	if id != nil {
+		_c = _c.SetMetadataID(*id)
+	}
+	return _c
+}
+
+// SetMetadata sets the "metadata" edge to the Metadata entity.
+func (_c *UserCreate) SetMetadata(v *Metadata) *UserCreate {
+	return _c.SetMetadataID(v.ID)
+}
+
+// AddInfoIDs adds the "info" edge to the Info entity by IDs.
+func (_c *UserCreate) AddInfoIDs(ids ...int) *UserCreate {
+	_c.mutation.AddInfoIDs(ids...)
+	return _c
+}
+
+// AddInfo adds the "info" edges to the Info entity.
+func (_c *UserCreate) AddInfo(v ...*Info) *UserCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddInfoIDs(ids...)
+}
+
+// AddRentalIDs adds the "rentals" edge to the Rental entity by IDs.
+func (_c *UserCreate) AddRentalIDs(ids ...int) *UserCreate {
+	_c.mutation.AddRentalIDs(ids...)
+	return _c
+}
+
+// AddRentals adds the "rentals" edges to the Rental entity.
+func (_c *UserCreate) AddRentals(v ...*Rental) *UserCreate {
+	ids := make([]int, len(v))
+	for i := range v {
+		ids[i] = v[i].ID
+	}
+	return _c.AddRentalIDs(ids...)
+}
+
+// Mutation returns the UserMutation object of the builder.
+func (_c *UserCreate) Mutation() *UserMutation {
+	return _c.mutation
+}
+
+// Save creates the User in the database.
+func (_c *UserCreate) Save(ctx context.Context) (*User, error) {
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *UserCreate) SaveX(ctx context.Context) *User {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *UserCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *UserCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *UserCreate) check() error {
+	return nil
+}
+
+func (_c *UserCreate) sqlSave(ctx context.Context) (*User, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != _node.ID {
+		id := _spec.ID.Value.(int64)
+		_node.ID = int(id)
+	}
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *UserCreate) createSpec() (*User, *sqlgraph.CreateSpec) {
+	var (
+		_node = &User{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(user.Table, sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt))
+	)
+	if id, ok := _c.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = id
+	}
+	if nodes := _c.mutation.PetsIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   user.PetsTable,
+			Columns: []string{user.PetsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(pet.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.ParentIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   user.ParentTable,
+			Columns: []string{user.ParentColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.ParentID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.ChildrenIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   user.ChildrenTable,
+			Columns: []string{user.ChildrenColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.SpouseIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   user.SpouseTable,
+			Columns: []string{user.SpouseColumn},
+			Bidi:    true,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.SpouseID = nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.CardIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   user.CardTable,
+			Columns: []string{user.CardColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.MetadataIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2O,
+			Inverse: false,
+			Table:   user.MetadataTable,
+			Columns: []string{user.MetadataColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(metadata.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.InfoIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: true,
+			Table:   user.InfoTable,
+			Columns: []string{user.InfoColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(info.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.RentalsIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.O2M,
+			Inverse: false,
+			Table:   user.RentalsTable,
+			Columns: []string{user.RentalsColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(rental.FieldID, field.TypeInt),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// UserCreateBulk is the builder for creating many User entities in bulk.
+type UserCreateBulk struct {
+	config
+	err      error
+	builders []*UserCreate
+}
+
+// Save creates the User entities in the database.
+func (_c *UserCreateBulk) Save(ctx context.Context) ([]*User, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*User, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*UserMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil && nodes[i].ID == 0 {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *UserCreateBulk) SaveX(ctx context.Context) []*User {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *UserCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *UserCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

entc/integration/edgefield/ent/user_delete.go

@@ -0,0 +1,92 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/entc/integration/edgefield/ent/predicate"
+	"entgo.io/ent/entc/integration/edgefield/ent/user"
+	"entgo.io/ent/schema/field"
+)
+
+// UserDelete is the builder for deleting a User entity.
+type UserDelete struct {
+	config
+	hooks    []Hook
+	mutation *UserMutation
+}
+
+// Where appends a list predicates to the UserDelete builder.
+func (_d *UserDelete) Where(ps ...predicate.User) *UserDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *UserDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *UserDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *UserDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(user.Table, sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt))
+	if ps := _d.mutation.Predicates(); len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// UserDeleteOne is the builder for deleting a single User entity.
+type UserDeleteOne struct {
+	_d *UserDelete
+}
+
+// Where appends a list predicates to the UserDelete builder.
+func (_d *UserDeleteOne) Where(ps ...predicate.User) *UserDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *UserDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{user.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *UserDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}