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

examples/fs/ent/file/file.go

@@ -0,0 +1,120 @@
+// 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 file
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the file type in the database.
+	Label = "file"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldName holds the string denoting the name field in the database.
+	FieldName = "name"
+	// FieldDeleted holds the string denoting the deleted field in the database.
+	FieldDeleted = "deleted"
+	// FieldParentID holds the string denoting the parent_id field in the database.
+	FieldParentID = "parent_id"
+	// 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"
+	// Table holds the table name of the file in the database.
+	Table = "files"
+	// ParentTable is the table that holds the parent relation/edge.
+	ParentTable = "files"
+	// ParentColumn is the table column denoting the parent relation/edge.
+	ParentColumn = "parent_id"
+	// ChildrenTable is the table that holds the children relation/edge.
+	ChildrenTable = "files"
+	// ChildrenColumn is the table column denoting the children relation/edge.
+	ChildrenColumn = "parent_id"
+)
+
+// Columns holds all SQL columns for file fields.
+var Columns = []string{
+	FieldID,
+	FieldName,
+	FieldDeleted,
+	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 (
+	// DefaultDeleted holds the default value on creation for the "deleted" field.
+	DefaultDeleted bool
+)
+
+// OrderOption defines the ordering options for the File 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()
+}
+
+// ByName orders the results by the name field.
+func ByName(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldName, opts...).ToFunc()
+}
+
+// ByDeleted orders the results by the deleted field.
+func ByDeleted(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldDeleted, opts...).ToFunc()
+}
+
+// ByParentID orders the results by the parent_id field.
+func ByParentID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldParentID, opts...).ToFunc()
+}
+
+// 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...)...)
+	}
+}
+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),
+	)
+}

examples/fs/ent/file/mutation.go

@@ -0,0 +1,467 @@
+// 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 file
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/examples/fs/ent/predicate"
+)
+
+// Mutation represents an operation that mutates the File nodes in the graph.
+type Mutation struct {
+	op              ent.Op
+	typ             string
+	name            *string
+	deleted         *bool
+	clearedFields   map[string]struct{}
+	parent          *int
+	clearedparent   bool
+	children        map[int]struct{}
+	removedchildren map[int]struct{}
+	clearedchildren bool
+	predicates      []predicate.File
+}
+
+// NewMutation creates a new Mutation for the File entity.
+func NewMutation(op ent.Op) *Mutation {
+	return &Mutation{
+		op:            op,
+		typ:           "File",
+		clearedFields: make(map[string]struct{}),
+	}
+}
+
+// Predicates returns the list of predicates set on the mutation.
+func (m *Mutation) Predicates() []predicate.File {
+	return m.predicates
+}
+
+// SetName sets the "name" field.
+func (m *Mutation) SetName(s string) {
+	m.name = &s
+}
+
+// Name returns the value of the "name" field in the mutation.
+func (m *Mutation) Name() (r string, exists bool) {
+	v := m.name
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetName resets all changes to the "name" field.
+func (m *Mutation) ResetName() {
+	m.name = nil
+}
+
+// SetDeleted sets the "deleted" field.
+func (m *Mutation) SetDeleted(b bool) {
+	m.deleted = &b
+}
+
+// Deleted returns the value of the "deleted" field in the mutation.
+func (m *Mutation) Deleted() (r bool, exists bool) {
+	v := m.deleted
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetDeleted resets all changes to the "deleted" field.
+func (m *Mutation) ResetDeleted() {
+	m.deleted = 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)
+}
+
+// ClearParent clears the "parent" edge to the File entity.
+func (m *Mutation) ClearParent() {
+	m.clearedparent = true
+	m.clearedFields[FieldParentID] = struct{}{}
+}
+
+// ParentCleared reports if the "parent" edge to the File 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 File 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 File entity.
+func (m *Mutation) ClearChildren() {
+	m.clearedchildren = true
+}
+
+// ChildrenCleared reports if the "children" edge to the File entity was cleared.
+func (m *Mutation) ChildrenCleared() bool {
+	return m.clearedchildren
+}
+
+// RemoveChildIDs removes the "children" edge to the File 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 File 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
+}
+
+// Where appends a list predicates to the Mutation builder.
+func (m *Mutation) Where(ps ...predicate.File) {
+	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.File, 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 (File).
+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.name != nil {
+		fields = append(fields, FieldName)
+	}
+	if m.deleted != nil {
+		fields = append(fields, FieldDeleted)
+	}
+	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 FieldName:
+		return m.Name()
+	case FieldDeleted:
+		return m.Deleted()
+	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 File 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 FieldName:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetName(v)
+		return nil
+	case FieldDeleted:
+		v, ok := value.(bool)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetDeleted(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 File 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 File 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 File 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 FieldName:
+		m.ResetName()
+		return nil
+	case FieldDeleted:
+		m.ResetDeleted()
+		return nil
+	case FieldParentID:
+		m.ResetParentID()
+		return nil
+	}
+	return fmt.Errorf("unknown File 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.parent != nil {
+		edges = append(edges, EdgeParent)
+	}
+	if m.children != nil {
+		edges = append(edges, EdgeChildren)
+	}
+	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 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
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *Mutation) RemovedEdges() []string {
+	edges := make([]string, 0, 2)
+	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, 2)
+	if m.clearedparent {
+		edges = append(edges, EdgeParent)
+	}
+	if m.clearedchildren {
+		edges = append(edges, EdgeChildren)
+	}
+	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 EdgeParent:
+		return m.clearedparent
+	case EdgeChildren:
+		return m.clearedchildren
+	}
+	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
+	}
+	return fmt.Errorf("unknown File 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 EdgeParent:
+		m.ResetParent()
+		return nil
+	case EdgeChildren:
+		m.ResetChildren()
+		return nil
+	}
+	return fmt.Errorf("unknown File edge %s", name)
+}

examples/fs/ent/file/where.go

@@ -0,0 +1,239 @@
+// 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 file
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/examples/fs/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.File {
+	return predicate.File(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.File {
+	return predicate.File(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.File {
+	return predicate.File(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.File {
+	return predicate.File(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.File {
+	return predicate.File(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.File {
+	return predicate.File(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.File {
+	return predicate.File(sql.FieldLTE(FieldID, id))
+}
+
+// Name applies equality check predicate on the "name" field. It's identical to NameEQ.
+func Name(v string) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldName, v))
+}
+
+// Deleted applies equality check predicate on the "deleted" field. It's identical to DeletedEQ.
+func Deleted(v bool) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldDeleted, v))
+}
+
+// ParentID applies equality check predicate on the "parent_id" field. It's identical to ParentIDEQ.
+func ParentID(v int) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldParentID, v))
+}
+
+// NameEQ applies the EQ predicate on the "name" field.
+func NameEQ(v string) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldName, v))
+}
+
+// NameNEQ applies the NEQ predicate on the "name" field.
+func NameNEQ(v string) predicate.File {
+	return predicate.File(sql.FieldNEQ(FieldName, v))
+}
+
+// NameIn applies the In predicate on the "name" field.
+func NameIn(vs ...string) predicate.File {
+	return predicate.File(sql.FieldIn(FieldName, vs...))
+}
+
+// NameNotIn applies the NotIn predicate on the "name" field.
+func NameNotIn(vs ...string) predicate.File {
+	return predicate.File(sql.FieldNotIn(FieldName, vs...))
+}
+
+// NameGT applies the GT predicate on the "name" field.
+func NameGT(v string) predicate.File {
+	return predicate.File(sql.FieldGT(FieldName, v))
+}
+
+// NameGTE applies the GTE predicate on the "name" field.
+func NameGTE(v string) predicate.File {
+	return predicate.File(sql.FieldGTE(FieldName, v))
+}
+
+// NameLT applies the LT predicate on the "name" field.
+func NameLT(v string) predicate.File {
+	return predicate.File(sql.FieldLT(FieldName, v))
+}
+
+// NameLTE applies the LTE predicate on the "name" field.
+func NameLTE(v string) predicate.File {
+	return predicate.File(sql.FieldLTE(FieldName, v))
+}
+
+// NameContains applies the Contains predicate on the "name" field.
+func NameContains(v string) predicate.File {
+	return predicate.File(sql.FieldContains(FieldName, v))
+}
+
+// NameHasPrefix applies the HasPrefix predicate on the "name" field.
+func NameHasPrefix(v string) predicate.File {
+	return predicate.File(sql.FieldHasPrefix(FieldName, v))
+}
+
+// NameHasSuffix applies the HasSuffix predicate on the "name" field.
+func NameHasSuffix(v string) predicate.File {
+	return predicate.File(sql.FieldHasSuffix(FieldName, v))
+}
+
+// NameEqualFold applies the EqualFold predicate on the "name" field.
+func NameEqualFold(v string) predicate.File {
+	return predicate.File(sql.FieldEqualFold(FieldName, v))
+}
+
+// NameContainsFold applies the ContainsFold predicate on the "name" field.
+func NameContainsFold(v string) predicate.File {
+	return predicate.File(sql.FieldContainsFold(FieldName, v))
+}
+
+// DeletedEQ applies the EQ predicate on the "deleted" field.
+func DeletedEQ(v bool) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldDeleted, v))
+}
+
+// DeletedNEQ applies the NEQ predicate on the "deleted" field.
+func DeletedNEQ(v bool) predicate.File {
+	return predicate.File(sql.FieldNEQ(FieldDeleted, v))
+}
+
+// ParentIDEQ applies the EQ predicate on the "parent_id" field.
+func ParentIDEQ(v int) predicate.File {
+	return predicate.File(sql.FieldEQ(FieldParentID, v))
+}
+
+// ParentIDNEQ applies the NEQ predicate on the "parent_id" field.
+func ParentIDNEQ(v int) predicate.File {
+	return predicate.File(sql.FieldNEQ(FieldParentID, v))
+}
+
+// ParentIDIn applies the In predicate on the "parent_id" field.
+func ParentIDIn(vs ...int) predicate.File {
+	return predicate.File(sql.FieldIn(FieldParentID, vs...))
+}
+
+// ParentIDNotIn applies the NotIn predicate on the "parent_id" field.
+func ParentIDNotIn(vs ...int) predicate.File {
+	return predicate.File(sql.FieldNotIn(FieldParentID, vs...))
+}
+
+// ParentIDIsNil applies the IsNil predicate on the "parent_id" field.
+func ParentIDIsNil() predicate.File {
+	return predicate.File(sql.FieldIsNull(FieldParentID))
+}
+
+// ParentIDNotNil applies the NotNil predicate on the "parent_id" field.
+func ParentIDNotNil() predicate.File {
+	return predicate.File(sql.FieldNotNull(FieldParentID))
+}
+
+// HasParent applies the HasEdge predicate on the "parent" edge.
+func HasParent() predicate.File {
+	return predicate.File(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.File) predicate.File {
+	return predicate.File(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.File {
+	return predicate.File(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.File) predicate.File {
+	return predicate.File(func(s *sql.Selector) {
+		step := newChildrenStep()
+		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.File) predicate.File {
+	return predicate.File(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.File) predicate.File {
+	return predicate.File(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.File) predicate.File {
+	return predicate.File(sql.NotPredicates(p))
+}