snapshot of https://github.com/ent/ent.git (master, 2026-09-15; blobs > 131072B omitted)
This commit is contained in:
upstream-mirror
44
examples/fs/README.md
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44
examples/fs/README.md
Normal file
@@ -0,0 +1,44 @@
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# Recursive Traversal Using [CTE](https://en.wikipedia.org/wiki/Hierarchical_and_recursive_queries_in_SQL#Common_table_expression)
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In this example, we create a file system with a tree structure, and want to query all "undeleted" files.
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A file is considered as "deleted", if it's marked as "deleted" (a bool field), or any of its parents is
|
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marked as "deleted".
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Given the following tree structure:
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```console
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a/
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├─ b/
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│ ├─ ba
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│ ├─ bb
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│ └─ bc (deleted)
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├─ c/ (deleted)
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│ ├─ ca
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│ └─ cb
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└─ d (deleted)
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```
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Query "undeleted" files should return the following structure:
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```console
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a/
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└─ b/
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├─ ba
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└─ bb
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```
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As you can see, in order to check if "cb" (or "ca") is "deleted", we need to "look behind" recursively
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until we find a "deleted" parent, or reach the root ("a").
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### Generate Assets
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```console
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go generate ./...
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```
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### Run Example
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```console
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go test
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```
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377
examples/fs/ent/client.go
Normal file
377
examples/fs/ent/client.go
Normal file
@@ -0,0 +1,377 @@
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// 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.
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||||
|
||||
// Code generated by ent, DO NOT EDIT.
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||||
|
||||
package ent
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||||
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"reflect"
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"entgo.io/ent"
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"entgo.io/ent/examples/fs/ent/migrate"
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"entgo.io/ent/dialect"
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"entgo.io/ent/dialect/sql"
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"entgo.io/ent/dialect/sql/sqlgraph"
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"entgo.io/ent/examples/fs/ent/file"
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)
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// Client is the client that holds all ent builders.
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type Client struct {
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config
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// Schema is the client for creating, migrating and dropping schema.
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Schema *migrate.Schema
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// File is the client for interacting with the File builders.
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File *FileClient
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}
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|
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// NewClient creates a new client configured with the given options.
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func NewClient(opts ...Option) *Client {
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client := &Client{config: newConfig(opts...)}
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client.init()
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return client
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}
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func (c *Client) init() {
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c.Schema = migrate.NewSchema(c.driver)
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c.File = NewFileClient(c.config)
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}
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type (
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// config is the configuration for the client and its builder.
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config struct {
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// driver used for executing database requests.
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driver dialect.Driver
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// debug enable a debug logging.
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debug bool
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// log used for logging on debug mode.
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log func(...any)
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// hooks to execute on mutations.
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hooks *hooks
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// interceptors to execute on queries.
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inters *inters
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}
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// Option function to configure the client.
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Option func(*config)
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)
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// newConfig creates a new config for the client.
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func newConfig(opts ...Option) config {
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cfg := config{log: log.Println, hooks: &hooks{}, inters: &inters{}}
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cfg.options(opts...)
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return cfg
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}
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|
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// options applies the options on the config object.
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func (c *config) options(opts ...Option) {
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for _, opt := range opts {
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opt(c)
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}
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if c.debug {
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c.driver = dialect.Debug(c.driver, c.log)
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}
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}
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// Debug enables debug logging on the ent.Driver.
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func Debug() Option {
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return func(c *config) {
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c.debug = true
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}
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}
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// Log sets the logging function for debug mode.
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func Log(fn func(...any)) Option {
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return func(c *config) {
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c.log = fn
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}
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}
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// Driver configures the client driver.
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func Driver(driver dialect.Driver) Option {
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return func(c *config) {
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c.driver = driver
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}
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}
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// Open opens a database/sql.DB specified by the driver name and
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// the data source name, and returns a new client attached to it.
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// Optional parameters can be added for configuring the client.
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func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
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switch driverName {
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case dialect.MySQL, dialect.Postgres, dialect.SQLite:
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drv, err := sql.Open(driverName, dataSourceName)
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if err != nil {
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return nil, err
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}
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return NewClient(append(options, Driver(drv))...), nil
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default:
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return nil, fmt.Errorf("unsupported driver: %q", driverName)
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}
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}
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// ErrTxStarted is returned when trying to start a new transaction from a transactional client.
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var ErrTxStarted = errors.New("ent: cannot start a transaction within a transaction")
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// Tx returns a new transactional client. The provided context
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// is used until the transaction is committed or rolled back.
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func (c *Client) Tx(ctx context.Context) (*Tx, error) {
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if _, ok := c.driver.(*txDriver); ok {
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return nil, ErrTxStarted
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}
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tx, err := newTx(ctx, c.driver)
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if err != nil {
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return nil, fmt.Errorf("ent: starting a transaction: %w", err)
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}
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cfg := c.config
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cfg.driver = tx
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return &Tx{
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ctx: ctx,
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config: cfg,
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File: NewFileClient(cfg),
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}, nil
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}
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// BeginTx returns a transactional client with specified options.
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func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
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if _, ok := c.driver.(*txDriver); ok {
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return nil, errors.New("ent: cannot start a transaction within a transaction")
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||||
}
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tx, err := c.driver.(interface {
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||||
BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
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||||
}).BeginTx(ctx, opts)
|
||||
if err != nil {
|
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return nil, fmt.Errorf("ent: starting a transaction: %w", err)
|
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}
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cfg := c.config
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cfg.driver = &txDriver{tx: tx, drv: c.driver}
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return &Tx{
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ctx: ctx,
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config: cfg,
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File: NewFileClient(cfg),
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}, nil
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}
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||||
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// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
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//
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// client.Debug().
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// File.
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// Query().
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// Count(ctx)
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||||
func (c *Client) Debug() *Client {
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if c.debug {
|
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return c
|
||||
}
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||||
cfg := c.config
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||||
cfg.driver = dialect.Debug(c.driver, c.log)
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client := &Client{config: cfg}
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||||
client.init()
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||||
return client
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||||
}
|
||||
|
||||
// Close closes the database connection and prevents new queries from starting.
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||||
func (c *Client) Close() error {
|
||||
return c.driver.Close()
|
||||
}
|
||||
|
||||
// Use adds the mutation hooks to all the entity clients.
|
||||
// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
|
||||
func (c *Client) Use(hooks ...Hook) {
|
||||
c.File.Use(hooks...)
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||||
}
|
||||
|
||||
// Intercept adds the query interceptors to all the entity clients.
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||||
// In order to add interceptors to a specific client, call: `client.Node.Intercept(...)`.
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||||
func (c *Client) Intercept(interceptors ...Interceptor) {
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||||
c.File.Intercept(interceptors...)
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||||
}
|
||||
|
||||
// Mutate implements the ent.Mutator interface.
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||||
func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error) {
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||||
switch m := m.(type) {
|
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case *FileMutation:
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||||
return c.File.mutate(ctx, m)
|
||||
default:
|
||||
return nil, fmt.Errorf("ent: unknown mutation type %T", m)
|
||||
}
|
||||
}
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||||
|
||||
// FileClient is a client for the File schema.
|
||||
type FileClient struct {
|
||||
config
|
||||
}
|
||||
|
||||
// NewFileClient returns a client for the File from the given config.
|
||||
func NewFileClient(c config) *FileClient {
|
||||
return &FileClient{config: c}
|
||||
}
|
||||
|
||||
// Use adds a list of mutation hooks to the hooks stack.
|
||||
// A call to `Use(f, g, h)` equals to `file.Hooks(f(g(h())))`.
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||||
func (c *FileClient) Use(hooks ...Hook) {
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||||
c.hooks.File = append(c.hooks.File, hooks...)
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||||
}
|
||||
|
||||
// Intercept adds a list of query interceptors to the interceptors stack.
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||||
// A call to `Intercept(f, g, h)` equals to `file.Intercept(f(g(h())))`.
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||||
func (c *FileClient) Intercept(interceptors ...Interceptor) {
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||||
c.inters.File = append(c.inters.File, interceptors...)
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||||
}
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||||
|
||||
// Create returns a builder for creating a File entity.
|
||||
func (c *FileClient) Create() *FileCreate {
|
||||
mutation := newFileMutation(c.config, OpCreate)
|
||||
return &FileCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
|
||||
}
|
||||
|
||||
// CreateBulk returns a builder for creating a bulk of File entities.
|
||||
func (c *FileClient) CreateBulk(builders ...*FileCreate) *FileCreateBulk {
|
||||
return &FileCreateBulk{config: c.config, builders: builders}
|
||||
}
|
||||
|
||||
// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
|
||||
// a builder and applies setFunc on it.
|
||||
func (c *FileClient) MapCreateBulk(slice any, setFunc func(*FileCreate, int)) *FileCreateBulk {
|
||||
rv := reflect.ValueOf(slice)
|
||||
if rv.Kind() != reflect.Slice {
|
||||
return &FileCreateBulk{err: fmt.Errorf("calling to FileClient.MapCreateBulk with wrong type %T, need slice", slice)}
|
||||
}
|
||||
builders := make([]*FileCreate, rv.Len())
|
||||
for i := 0; i < rv.Len(); i++ {
|
||||
builders[i] = c.Create()
|
||||
setFunc(builders[i], i)
|
||||
}
|
||||
return &FileCreateBulk{config: c.config, builders: builders}
|
||||
}
|
||||
|
||||
// Update returns an update builder for File.
|
||||
func (c *FileClient) Update() *FileUpdate {
|
||||
mutation := newFileMutation(c.config, OpUpdate)
|
||||
return &FileUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
|
||||
}
|
||||
|
||||
// UpdateOne returns an update builder for the given entity.
|
||||
func (c *FileClient) UpdateOne(_m *File) *FileUpdateOne {
|
||||
mutation := newFileMutation(c.config, OpUpdateOne, withFile(_m))
|
||||
return &FileUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
|
||||
}
|
||||
|
||||
// UpdateOneID returns an update builder for the given id.
|
||||
func (c *FileClient) UpdateOneID(id int) *FileUpdateOne {
|
||||
mutation := newFileMutation(c.config, OpUpdateOne, withFileID(id))
|
||||
return &FileUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
|
||||
}
|
||||
|
||||
// Delete returns a delete builder for File.
|
||||
func (c *FileClient) Delete() *FileDelete {
|
||||
mutation := newFileMutation(c.config, OpDelete)
|
||||
return &FileDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
|
||||
}
|
||||
|
||||
// DeleteOne returns a builder for deleting the given entity.
|
||||
func (c *FileClient) DeleteOne(_m *File) *FileDeleteOne {
|
||||
return c.DeleteOneID(_m.ID)
|
||||
}
|
||||
|
||||
// DeleteOneID returns a builder for deleting the given entity by its id.
|
||||
func (c *FileClient) DeleteOneID(id int) *FileDeleteOne {
|
||||
builder := c.Delete().Where(file.ID(id))
|
||||
builder.mutation.id = &id
|
||||
builder.mutation.SetOp(OpDeleteOne)
|
||||
return &FileDeleteOne{builder}
|
||||
}
|
||||
|
||||
// Query returns a query builder for File.
|
||||
func (c *FileClient) Query() *FileQuery {
|
||||
return &FileQuery{
|
||||
config: c.config,
|
||||
ctx: &QueryContext{Type: TypeFile},
|
||||
inters: c.Interceptors(),
|
||||
}
|
||||
}
|
||||
|
||||
// Get returns a File entity by its id.
|
||||
func (c *FileClient) Get(ctx context.Context, id int) (*File, error) {
|
||||
return c.Query().Where(file.ID(id)).Only(ctx)
|
||||
}
|
||||
|
||||
// GetX is like Get, but panics if an error occurs.
|
||||
func (c *FileClient) GetX(ctx context.Context, id int) *File {
|
||||
obj, err := c.Get(ctx, id)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return obj
|
||||
}
|
||||
|
||||
// QueryParent queries the parent edge of a File.
|
||||
func (c *FileClient) QueryParent(_m *File) *FileQuery {
|
||||
query := (&FileClient{config: c.config}).Query()
|
||||
query.path = func(context.Context) (fromV *sql.Selector, _ error) {
|
||||
id := _m.ID
|
||||
step := sqlgraph.NewStep(
|
||||
sqlgraph.From(file.Table, file.FieldID, id),
|
||||
sqlgraph.To(file.Table, file.FieldID),
|
||||
sqlgraph.Edge(sqlgraph.M2O, true, file.ParentTable, file.ParentColumn),
|
||||
)
|
||||
fromV = sqlgraph.Neighbors(_m.driver.Dialect(), step)
|
||||
return fromV, nil
|
||||
}
|
||||
return query
|
||||
}
|
||||
|
||||
// QueryChildren queries the children edge of a File.
|
||||
func (c *FileClient) QueryChildren(_m *File) *FileQuery {
|
||||
query := (&FileClient{config: c.config}).Query()
|
||||
query.path = func(context.Context) (fromV *sql.Selector, _ error) {
|
||||
id := _m.ID
|
||||
step := sqlgraph.NewStep(
|
||||
sqlgraph.From(file.Table, file.FieldID, id),
|
||||
sqlgraph.To(file.Table, file.FieldID),
|
||||
sqlgraph.Edge(sqlgraph.O2M, false, file.ChildrenTable, file.ChildrenColumn),
|
||||
)
|
||||
fromV = sqlgraph.Neighbors(_m.driver.Dialect(), step)
|
||||
return fromV, nil
|
||||
}
|
||||
return query
|
||||
}
|
||||
|
||||
// Hooks returns the client hooks.
|
||||
func (c *FileClient) Hooks() []Hook {
|
||||
return c.hooks.File
|
||||
}
|
||||
|
||||
// Interceptors returns the client interceptors.
|
||||
func (c *FileClient) Interceptors() []Interceptor {
|
||||
return c.inters.File
|
||||
}
|
||||
|
||||
func (c *FileClient) mutate(ctx context.Context, m *FileMutation) (Value, error) {
|
||||
switch m.Op() {
|
||||
case OpCreate:
|
||||
return (&FileCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
|
||||
case OpUpdate:
|
||||
return (&FileUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
|
||||
case OpUpdateOne:
|
||||
return (&FileUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
|
||||
case OpDelete, OpDeleteOne:
|
||||
return (&FileDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
|
||||
default:
|
||||
return nil, fmt.Errorf("ent: unknown File mutation op: %q", m.Op())
|
||||
}
|
||||
}
|
||||
|
||||
// hooks and interceptors per client, for fast access.
|
||||
type (
|
||||
hooks struct {
|
||||
File []ent.Hook
|
||||
}
|
||||
inters struct {
|
||||
File []ent.Interceptor
|
||||
}
|
||||
)
|
||||
612
examples/fs/ent/ent.go
Normal file
612
examples/fs/ent/ent.go
Normal file
@@ -0,0 +1,612 @@
|
||||
// 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/examples/fs/ent/file"
|
||||
)
|
||||
|
||||
// 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{
|
||||
file.Table: file.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)
|
||||
88
examples/fs/ent/enttest/enttest.go
Normal file
88
examples/fs/ent/enttest/enttest.go
Normal file
@@ -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/examples/fs/ent"
|
||||
// required by schema hooks.
|
||||
_ "entgo.io/ent/examples/fs/ent/runtime"
|
||||
|
||||
"entgo.io/ent/dialect/sql/schema"
|
||||
"entgo.io/ent/examples/fs/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()
|
||||
}
|
||||
}
|
||||
175
examples/fs/ent/file.go
Normal file
175
examples/fs/ent/file.go
Normal file
@@ -0,0 +1,175 @@
|
||||
// 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/examples/fs/ent/file"
|
||||
)
|
||||
|
||||
// File is the model entity for the File schema.
|
||||
type File struct {
|
||||
config `json:"-"`
|
||||
// ID of the ent.
|
||||
ID int `json:"id,omitempty"`
|
||||
// Name holds the value of the "name" field.
|
||||
Name string `json:"name,omitempty"`
|
||||
// Deleted holds the value of the "deleted" field.
|
||||
Deleted bool `json:"deleted,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 FileQuery when eager-loading is set.
|
||||
Edges FileEdges `json:"edges"`
|
||||
selectValues sql.SelectValues
|
||||
}
|
||||
|
||||
// FileEdges holds the relations/edges for other nodes in the graph.
|
||||
type FileEdges struct {
|
||||
// Parent holds the value of the parent edge.
|
||||
Parent *File `json:"parent,omitempty"`
|
||||
// Children holds the value of the children edge.
|
||||
Children []*File `json:"children,omitempty"`
|
||||
// loadedTypes holds the information for reporting if a
|
||||
// type was loaded (or requested) in eager-loading or not.
|
||||
loadedTypes [2]bool
|
||||
}
|
||||
|
||||
// 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 FileEdges) ParentOrErr() (*File, error) {
|
||||
if e.Parent != nil {
|
||||
return e.Parent, nil
|
||||
} else if e.loadedTypes[0] {
|
||||
return nil, &NotFoundError{label: file.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 FileEdges) ChildrenOrErr() ([]*File, error) {
|
||||
if e.loadedTypes[1] {
|
||||
return e.Children, nil
|
||||
}
|
||||
return nil, &NotLoadedError{edge: "children"}
|
||||
}
|
||||
|
||||
// scanValues returns the types for scanning values from sql.Rows.
|
||||
func (*File) scanValues(columns []string) ([]any, error) {
|
||||
values := make([]any, len(columns))
|
||||
for i := range columns {
|
||||
switch columns[i] {
|
||||
case file.FieldDeleted:
|
||||
values[i] = new(sql.NullBool)
|
||||
case file.FieldID, file.FieldParentID:
|
||||
values[i] = new(sql.NullInt64)
|
||||
case file.FieldName:
|
||||
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 File fields.
|
||||
func (_m *File) 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 file.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 file.FieldName:
|
||||
if value, ok := values[i].(*sql.NullString); !ok {
|
||||
return fmt.Errorf("unexpected type %T for field name", values[i])
|
||||
} else if value.Valid {
|
||||
_m.Name = value.String
|
||||
}
|
||||
case file.FieldDeleted:
|
||||
if value, ok := values[i].(*sql.NullBool); !ok {
|
||||
return fmt.Errorf("unexpected type %T for field deleted", values[i])
|
||||
} else if value.Valid {
|
||||
_m.Deleted = value.Bool
|
||||
}
|
||||
case file.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 File.
|
||||
// This includes values selected through modifiers, order, etc.
|
||||
func (_m *File) Value(name string) (ent.Value, error) {
|
||||
return _m.selectValues.Get(name)
|
||||
}
|
||||
|
||||
// QueryParent queries the "parent" edge of the File entity.
|
||||
func (_m *File) QueryParent() *FileQuery {
|
||||
return NewFileClient(_m.config).QueryParent(_m)
|
||||
}
|
||||
|
||||
// QueryChildren queries the "children" edge of the File entity.
|
||||
func (_m *File) QueryChildren() *FileQuery {
|
||||
return NewFileClient(_m.config).QueryChildren(_m)
|
||||
}
|
||||
|
||||
// Update returns a builder for updating this File.
|
||||
// Note that you need to call File.Unwrap() before calling this method if this File
|
||||
// was returned from a transaction, and the transaction was committed or rolled back.
|
||||
func (_m *File) Update() *FileUpdateOne {
|
||||
return NewFileClient(_m.config).UpdateOne(_m)
|
||||
}
|
||||
|
||||
// Unwrap unwraps the File 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 *File) Unwrap() *File {
|
||||
_tx, ok := _m.config.driver.(*txDriver)
|
||||
if !ok {
|
||||
panic("ent: File is not a transactional entity")
|
||||
}
|
||||
_m.config.driver = _tx.drv
|
||||
return _m
|
||||
}
|
||||
|
||||
// String implements the fmt.Stringer.
|
||||
func (_m *File) String() string {
|
||||
var builder strings.Builder
|
||||
builder.WriteString("File(")
|
||||
builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
|
||||
builder.WriteString("name=")
|
||||
builder.WriteString(_m.Name)
|
||||
builder.WriteString(", ")
|
||||
builder.WriteString("deleted=")
|
||||
builder.WriteString(fmt.Sprintf("%v", _m.Deleted))
|
||||
builder.WriteString(", ")
|
||||
builder.WriteString("parent_id=")
|
||||
builder.WriteString(fmt.Sprintf("%v", _m.ParentID))
|
||||
builder.WriteByte(')')
|
||||
return builder.String()
|
||||
}
|
||||
|
||||
// Files is a parsable slice of File.
|
||||
type Files []*File
|
||||
120
examples/fs/ent/file/file.go
Normal file
120
examples/fs/ent/file/file.go
Normal file
@@ -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),
|
||||
)
|
||||
}
|
||||
467
examples/fs/ent/file/mutation.go
Normal file
467
examples/fs/ent/file/mutation.go
Normal file
@@ -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)
|
||||
}
|
||||
239
examples/fs/ent/file/where.go
Normal file
239
examples/fs/ent/file/where.go
Normal file
@@ -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))
|
||||
}
|
||||
285
examples/fs/ent/file_create.go
Normal file
285
examples/fs/ent/file_create.go
Normal file
@@ -0,0 +1,285 @@
|
||||
// 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/examples/fs/ent/file"
|
||||
"entgo.io/ent/schema/field"
|
||||
)
|
||||
|
||||
// FileCreate is the builder for creating a File entity.
|
||||
type FileCreate struct {
|
||||
config
|
||||
mutation *FileMutation
|
||||
hooks []Hook
|
||||
}
|
||||
|
||||
// SetName sets the "name" field.
|
||||
func (_c *FileCreate) SetName(v string) *FileCreate {
|
||||
_c.mutation.SetName(v)
|
||||
return _c
|
||||
}
|
||||
|
||||
// SetDeleted sets the "deleted" field.
|
||||
func (_c *FileCreate) SetDeleted(v bool) *FileCreate {
|
||||
_c.mutation.SetDeleted(v)
|
||||
return _c
|
||||
}
|
||||
|
||||
// SetNillableDeleted sets the "deleted" field if the given value is not nil.
|
||||
func (_c *FileCreate) SetNillableDeleted(v *bool) *FileCreate {
|
||||
if v != nil {
|
||||
_c.SetDeleted(*v)
|
||||
}
|
||||
return _c
|
||||
}
|
||||
|
||||
// SetParentID sets the "parent_id" field.
|
||||
func (_c *FileCreate) SetParentID(v int) *FileCreate {
|
||||
_c.mutation.SetParentID(v)
|
||||
return _c
|
||||
}
|
||||
|
||||
// SetNillableParentID sets the "parent_id" field if the given value is not nil.
|
||||
func (_c *FileCreate) SetNillableParentID(v *int) *FileCreate {
|
||||
if v != nil {
|
||||
_c.SetParentID(*v)
|
||||
}
|
||||
return _c
|
||||
}
|
||||
|
||||
// SetParent sets the "parent" edge to the File entity.
|
||||
func (_c *FileCreate) SetParent(v *File) *FileCreate {
|
||||
return _c.SetParentID(v.ID)
|
||||
}
|
||||
|
||||
// AddChildIDs adds the "children" edge to the File entity by IDs.
|
||||
func (_c *FileCreate) AddChildIDs(ids ...int) *FileCreate {
|
||||
_c.mutation.AddChildIDs(ids...)
|
||||
return _c
|
||||
}
|
||||
|
||||
// AddChildren adds the "children" edges to the File entity.
|
||||
func (_c *FileCreate) AddChildren(v ...*File) *FileCreate {
|
||||
ids := make([]int, len(v))
|
||||
for i := range v {
|
||||
ids[i] = v[i].ID
|
||||
}
|
||||
return _c.AddChildIDs(ids...)
|
||||
}
|
||||
|
||||
// Mutation returns the FileMutation object of the builder.
|
||||
func (_c *FileCreate) Mutation() *FileMutation {
|
||||
return _c.mutation
|
||||
}
|
||||
|
||||
// Save creates the File in the database.
|
||||
func (_c *FileCreate) Save(ctx context.Context) (*File, error) {
|
||||
_c.defaults()
|
||||
return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
|
||||
}
|
||||
|
||||
// SaveX calls Save and panics if Save returns an error.
|
||||
func (_c *FileCreate) SaveX(ctx context.Context) *File {
|
||||
v, err := _c.Save(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Exec executes the query.
|
||||
func (_c *FileCreate) Exec(ctx context.Context) error {
|
||||
_, err := _c.Save(ctx)
|
||||
return err
|
||||
}
|
||||
|
||||
// ExecX is like Exec, but panics if an error occurs.
|
||||
func (_c *FileCreate) 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 *FileCreate) defaults() {
|
||||
if _, ok := _c.mutation.Deleted(); !ok {
|
||||
v := file.DefaultDeleted
|
||||
_c.mutation.SetDeleted(v)
|
||||
}
|
||||
}
|
||||
|
||||
// check runs all checks and user-defined validators on the builder.
|
||||
func (_c *FileCreate) check() error {
|
||||
if _, ok := _c.mutation.Name(); !ok {
|
||||
return &ValidationError{Name: "name", err: errors.New(`ent: missing required field "File.name"`)}
|
||||
}
|
||||
if _, ok := _c.mutation.Deleted(); !ok {
|
||||
return &ValidationError{Name: "deleted", err: errors.New(`ent: missing required field "File.deleted"`)}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (_c *FileCreate) sqlSave(ctx context.Context) (*File, 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 *FileCreate) createSpec() (*File, *sqlgraph.CreateSpec) {
|
||||
var (
|
||||
_node = &File{config: _c.config}
|
||||
_spec = sqlgraph.NewCreateSpec(file.Table, sqlgraph.NewFieldSpec(file.FieldID, field.TypeInt))
|
||||
)
|
||||
if value, ok := _c.mutation.Name(); ok {
|
||||
_spec.SetField(file.FieldName, field.TypeString, value)
|
||||
_node.Name = value
|
||||
}
|
||||
if value, ok := _c.mutation.Deleted(); ok {
|
||||
_spec.SetField(file.FieldDeleted, field.TypeBool, value)
|
||||
_node.Deleted = value
|
||||
}
|
||||
if nodes := _c.mutation.ParentIDs(); len(nodes) > 0 {
|
||||
edge := &sqlgraph.EdgeSpec{
|
||||
Rel: sqlgraph.M2O,
|
||||
Inverse: true,
|
||||
Table: file.ParentTable,
|
||||
Columns: []string{file.ParentColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.FieldID, field.TypeInt),
|
||||
},
|
||||
}
|
||||
for _, k := range nodes {
|
||||
edge.Target.Nodes = append(edge.Target.Nodes, k)
|
||||
}
|
||||
_spec.Edges = append(_spec.Edges, edge)
|
||||
}
|
||||
return _node, _spec
|
||||
}
|
||||
|
||||
// FileCreateBulk is the builder for creating many File entities in bulk.
|
||||
type FileCreateBulk struct {
|
||||
config
|
||||
err error
|
||||
builders []*FileCreate
|
||||
}
|
||||
|
||||
// Save creates the File entities in the database.
|
||||
func (_c *FileCreateBulk) Save(ctx context.Context) ([]*File, error) {
|
||||
if _c.err != nil {
|
||||
return nil, _c.err
|
||||
}
|
||||
specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
|
||||
nodes := make([]*File, 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.(*FileMutation)
|
||||
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 *FileCreateBulk) SaveX(ctx context.Context) []*File {
|
||||
v, err := _c.Save(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Exec executes the query.
|
||||
func (_c *FileCreateBulk) Exec(ctx context.Context) error {
|
||||
_, err := _c.Save(ctx)
|
||||
return err
|
||||
}
|
||||
|
||||
// ExecX is like Exec, but panics if an error occurs.
|
||||
func (_c *FileCreateBulk) ExecX(ctx context.Context) {
|
||||
if err := _c.Exec(ctx); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
92
examples/fs/ent/file_delete.go
Normal file
92
examples/fs/ent/file_delete.go
Normal file
@@ -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/examples/fs/ent/file"
|
||||
"entgo.io/ent/examples/fs/ent/predicate"
|
||||
"entgo.io/ent/schema/field"
|
||||
)
|
||||
|
||||
// FileDelete is the builder for deleting a File entity.
|
||||
type FileDelete struct {
|
||||
config
|
||||
hooks []Hook
|
||||
mutation *FileMutation
|
||||
}
|
||||
|
||||
// Where appends a list predicates to the FileDelete builder.
|
||||
func (_d *FileDelete) Where(ps ...predicate.File) *FileDelete {
|
||||
_d.mutation.Where(ps...)
|
||||
return _d
|
||||
}
|
||||
|
||||
// Exec executes the deletion query and returns how many vertices were deleted.
|
||||
func (_d *FileDelete) 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 *FileDelete) ExecX(ctx context.Context) int {
|
||||
n, err := _d.Exec(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (_d *FileDelete) sqlExec(ctx context.Context) (int, error) {
|
||||
_spec := sqlgraph.NewDeleteSpec(file.Table, sqlgraph.NewFieldSpec(file.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
|
||||
}
|
||||
|
||||
// FileDeleteOne is the builder for deleting a single File entity.
|
||||
type FileDeleteOne struct {
|
||||
_d *FileDelete
|
||||
}
|
||||
|
||||
// Where appends a list predicates to the FileDelete builder.
|
||||
func (_d *FileDeleteOne) Where(ps ...predicate.File) *FileDeleteOne {
|
||||
_d._d.mutation.Where(ps...)
|
||||
return _d
|
||||
}
|
||||
|
||||
// Exec executes the deletion query.
|
||||
func (_d *FileDeleteOne) Exec(ctx context.Context) error {
|
||||
n, err := _d._d.Exec(ctx)
|
||||
switch {
|
||||
case err != nil:
|
||||
return err
|
||||
case n == 0:
|
||||
return &NotFoundError{file.Label}
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// ExecX is like Exec, but panics if an error occurs.
|
||||
func (_d *FileDeleteOne) ExecX(ctx context.Context) {
|
||||
if err := _d.Exec(ctx); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
683
examples/fs/ent/file_query.go
Normal file
683
examples/fs/ent/file_query.go
Normal file
@@ -0,0 +1,683 @@
|
||||
// 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/examples/fs/ent/file"
|
||||
"entgo.io/ent/examples/fs/ent/predicate"
|
||||
"entgo.io/ent/schema/field"
|
||||
)
|
||||
|
||||
// FileQuery is the builder for querying File entities.
|
||||
type FileQuery struct {
|
||||
config
|
||||
ctx *QueryContext
|
||||
order []file.OrderOption
|
||||
inters []Interceptor
|
||||
predicates []predicate.File
|
||||
withParent *FileQuery
|
||||
withChildren *FileQuery
|
||||
// intermediate query (i.e. traversal path).
|
||||
sql *sql.Selector
|
||||
path func(context.Context) (*sql.Selector, error)
|
||||
}
|
||||
|
||||
// Where adds a new predicate for the FileQuery builder.
|
||||
func (_q *FileQuery) Where(ps ...predicate.File) *FileQuery {
|
||||
_q.predicates = append(_q.predicates, ps...)
|
||||
return _q
|
||||
}
|
||||
|
||||
// Limit the number of records to be returned by this query.
|
||||
func (_q *FileQuery) Limit(limit int) *FileQuery {
|
||||
_q.ctx.Limit = &limit
|
||||
return _q
|
||||
}
|
||||
|
||||
// Offset to start from.
|
||||
func (_q *FileQuery) Offset(offset int) *FileQuery {
|
||||
_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 *FileQuery) Unique(unique bool) *FileQuery {
|
||||
_q.ctx.Unique = &unique
|
||||
return _q
|
||||
}
|
||||
|
||||
// Order specifies how the records should be ordered.
|
||||
func (_q *FileQuery) Order(o ...file.OrderOption) *FileQuery {
|
||||
_q.order = append(_q.order, o...)
|
||||
return _q
|
||||
}
|
||||
|
||||
// QueryParent chains the current query on the "parent" edge.
|
||||
func (_q *FileQuery) QueryParent() *FileQuery {
|
||||
query := (&FileClient{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(file.Table, file.FieldID, selector),
|
||||
sqlgraph.To(file.Table, file.FieldID),
|
||||
sqlgraph.Edge(sqlgraph.M2O, true, file.ParentTable, file.ParentColumn),
|
||||
)
|
||||
fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
|
||||
return fromU, nil
|
||||
}
|
||||
return query
|
||||
}
|
||||
|
||||
// QueryChildren chains the current query on the "children" edge.
|
||||
func (_q *FileQuery) QueryChildren() *FileQuery {
|
||||
query := (&FileClient{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(file.Table, file.FieldID, selector),
|
||||
sqlgraph.To(file.Table, file.FieldID),
|
||||
sqlgraph.Edge(sqlgraph.O2M, false, file.ChildrenTable, file.ChildrenColumn),
|
||||
)
|
||||
fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
|
||||
return fromU, nil
|
||||
}
|
||||
return query
|
||||
}
|
||||
|
||||
// First returns the first File entity from the query.
|
||||
// Returns a *NotFoundError when no File was found.
|
||||
func (_q *FileQuery) First(ctx context.Context) (*File, 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{file.Label}
|
||||
}
|
||||
return nodes[0], nil
|
||||
}
|
||||
|
||||
// FirstX is like First, but panics if an error occurs.
|
||||
func (_q *FileQuery) FirstX(ctx context.Context) *File {
|
||||
node, err := _q.First(ctx)
|
||||
if err != nil && !IsNotFound(err) {
|
||||
panic(err)
|
||||
}
|
||||
return node
|
||||
}
|
||||
|
||||
// FirstID returns the first File ID from the query.
|
||||
// Returns a *NotFoundError when no File ID was found.
|
||||
func (_q *FileQuery) 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{file.Label}
|
||||
return
|
||||
}
|
||||
return ids[0], nil
|
||||
}
|
||||
|
||||
// FirstIDX is like FirstID, but panics if an error occurs.
|
||||
func (_q *FileQuery) FirstIDX(ctx context.Context) int {
|
||||
id, err := _q.FirstID(ctx)
|
||||
if err != nil && !IsNotFound(err) {
|
||||
panic(err)
|
||||
}
|
||||
return id
|
||||
}
|
||||
|
||||
// Only returns a single File entity found by the query, ensuring it only returns one.
|
||||
// Returns a *NotSingularError when more than one File entity is found.
|
||||
// Returns a *NotFoundError when no File entities are found.
|
||||
func (_q *FileQuery) Only(ctx context.Context) (*File, 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{file.Label}
|
||||
default:
|
||||
return nil, &NotSingularError{file.Label}
|
||||
}
|
||||
}
|
||||
|
||||
// OnlyX is like Only, but panics if an error occurs.
|
||||
func (_q *FileQuery) OnlyX(ctx context.Context) *File {
|
||||
node, err := _q.Only(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return node
|
||||
}
|
||||
|
||||
// OnlyID is like Only, but returns the only File ID in the query.
|
||||
// Returns a *NotSingularError when more than one File ID is found.
|
||||
// Returns a *NotFoundError when no entities are found.
|
||||
func (_q *FileQuery) 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{file.Label}
|
||||
default:
|
||||
err = &NotSingularError{file.Label}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// OnlyIDX is like OnlyID, but panics if an error occurs.
|
||||
func (_q *FileQuery) 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 Files.
|
||||
func (_q *FileQuery) All(ctx context.Context) ([]*File, error) {
|
||||
ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
|
||||
if err := _q.prepareQuery(ctx); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
qr := querierAll[[]*File, *FileQuery]()
|
||||
return withInterceptors[[]*File](ctx, _q, qr, _q.inters)
|
||||
}
|
||||
|
||||
// AllX is like All, but panics if an error occurs.
|
||||
func (_q *FileQuery) AllX(ctx context.Context) []*File {
|
||||
nodes, err := _q.All(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return nodes
|
||||
}
|
||||
|
||||
// IDs executes the query and returns a list of File IDs.
|
||||
func (_q *FileQuery) 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(file.FieldID).Scan(ctx, &ids); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return ids, nil
|
||||
}
|
||||
|
||||
// IDsX is like IDs, but panics if an error occurs.
|
||||
func (_q *FileQuery) 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 *FileQuery) 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[*FileQuery](), _q.inters)
|
||||
}
|
||||
|
||||
// CountX is like Count, but panics if an error occurs.
|
||||
func (_q *FileQuery) 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 *FileQuery) 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 *FileQuery) ExistX(ctx context.Context) bool {
|
||||
exist, err := _q.Exist(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return exist
|
||||
}
|
||||
|
||||
// Clone returns a duplicate of the FileQuery 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 *FileQuery) Clone() *FileQuery {
|
||||
if _q == nil {
|
||||
return nil
|
||||
}
|
||||
return &FileQuery{
|
||||
config: _q.config,
|
||||
ctx: _q.ctx.Clone(),
|
||||
order: append([]file.OrderOption{}, _q.order...),
|
||||
inters: append([]Interceptor{}, _q.inters...),
|
||||
predicates: append([]predicate.File{}, _q.predicates...),
|
||||
withParent: _q.withParent.Clone(),
|
||||
withChildren: _q.withChildren.Clone(),
|
||||
// clone intermediate query.
|
||||
sql: _q.sql.Clone(),
|
||||
path: _q.path,
|
||||
}
|
||||
}
|
||||
|
||||
// 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 *FileQuery) WithParent(opts ...func(*FileQuery)) *FileQuery {
|
||||
query := (&FileClient{config: _q.config}).Query()
|
||||
for _, opt := range opts {
|
||||
opt(query)
|
||||
}
|
||||
_q.withParent = 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 *FileQuery) WithChildren(opts ...func(*FileQuery)) *FileQuery {
|
||||
query := (&FileClient{config: _q.config}).Query()
|
||||
for _, opt := range opts {
|
||||
opt(query)
|
||||
}
|
||||
_q.withChildren = 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 {
|
||||
// Name string `json:"name,omitempty"`
|
||||
// Count int `json:"count,omitempty"`
|
||||
// }
|
||||
//
|
||||
// client.File.Query().
|
||||
// GroupBy(file.FieldName).
|
||||
// Aggregate(ent.Count()).
|
||||
// Scan(ctx, &v)
|
||||
func (_q *FileQuery) GroupBy(field string, fields ...string) *FileGroupBy {
|
||||
_q.ctx.Fields = append([]string{field}, fields...)
|
||||
grbuild := &FileGroupBy{build: _q}
|
||||
grbuild.flds = &_q.ctx.Fields
|
||||
grbuild.label = file.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 {
|
||||
// Name string `json:"name,omitempty"`
|
||||
// }
|
||||
//
|
||||
// client.File.Query().
|
||||
// Select(file.FieldName).
|
||||
// Scan(ctx, &v)
|
||||
func (_q *FileQuery) Select(fields ...string) *FileSelect {
|
||||
_q.ctx.Fields = append(_q.ctx.Fields, fields...)
|
||||
sbuild := &FileSelect{FileQuery: _q}
|
||||
sbuild.label = file.Label
|
||||
sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
|
||||
return sbuild
|
||||
}
|
||||
|
||||
// Aggregate returns a FileSelect configured with the given aggregations.
|
||||
func (_q *FileQuery) Aggregate(fns ...AggregateFunc) *FileSelect {
|
||||
return _q.Select().Aggregate(fns...)
|
||||
}
|
||||
|
||||
func (_q *FileQuery) 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 !file.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 *FileQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*File, error) {
|
||||
var (
|
||||
nodes = []*File{}
|
||||
_spec = _q.querySpec()
|
||||
loadedTypes = [2]bool{
|
||||
_q.withParent != nil,
|
||||
_q.withChildren != nil,
|
||||
}
|
||||
)
|
||||
_spec.ScanValues = func(columns []string) ([]any, error) {
|
||||
return (*File).scanValues(nil, columns)
|
||||
}
|
||||
_spec.Assign = func(columns []string, values []any) error {
|
||||
node := &File{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.withParent; query != nil {
|
||||
if err := _q.loadParent(ctx, query, nodes, nil,
|
||||
func(n *File, e *File) { n.Edges.Parent = e }); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
if query := _q.withChildren; query != nil {
|
||||
if err := _q.loadChildren(ctx, query, nodes,
|
||||
func(n *File) { n.Edges.Children = []*File{} },
|
||||
func(n *File, e *File) { n.Edges.Children = append(n.Edges.Children, e) }); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return nodes, nil
|
||||
}
|
||||
|
||||
func (_q *FileQuery) loadParent(ctx context.Context, query *FileQuery, nodes []*File, init func(*File), assign func(*File, *File)) error {
|
||||
ids := make([]int, 0, len(nodes))
|
||||
nodeids := make(map[int][]*File)
|
||||
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(file.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 *FileQuery) loadChildren(ctx context.Context, query *FileQuery, nodes []*File, init func(*File), assign func(*File, *File)) error {
|
||||
fks := make([]driver.Value, 0, len(nodes))
|
||||
nodeids := make(map[int]*File)
|
||||
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(file.FieldParentID)
|
||||
}
|
||||
query.Where(predicate.File(func(s *sql.Selector) {
|
||||
s.Where(sql.InValues(s.C(file.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 *FileQuery) 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 *FileQuery) querySpec() *sqlgraph.QuerySpec {
|
||||
_spec := sqlgraph.NewQuerySpec(file.Table, file.Columns, sqlgraph.NewFieldSpec(file.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, file.FieldID)
|
||||
for i := range fields {
|
||||
if fields[i] != file.FieldID {
|
||||
_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
|
||||
}
|
||||
}
|
||||
if _q.withParent != nil {
|
||||
_spec.Node.AddColumnOnce(file.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 *FileQuery) sqlQuery(ctx context.Context) *sql.Selector {
|
||||
builder := sql.Dialect(_q.driver.Dialect())
|
||||
t1 := builder.Table(file.Table)
|
||||
columns := _q.ctx.Fields
|
||||
if len(columns) == 0 {
|
||||
columns = file.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
|
||||
}
|
||||
|
||||
// FileGroupBy is the group-by builder for File entities.
|
||||
type FileGroupBy struct {
|
||||
selector
|
||||
build *FileQuery
|
||||
}
|
||||
|
||||
// Aggregate adds the given aggregation functions to the group-by query.
|
||||
func (_g *FileGroupBy) Aggregate(fns ...AggregateFunc) *FileGroupBy {
|
||||
_g.fns = append(_g.fns, fns...)
|
||||
return _g
|
||||
}
|
||||
|
||||
// Scan applies the selector query and scans the result into the given value.
|
||||
func (_g *FileGroupBy) 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[*FileQuery, *FileGroupBy](ctx, _g.build, _g, _g.build.inters, v)
|
||||
}
|
||||
|
||||
func (_g *FileGroupBy) sqlScan(ctx context.Context, root *FileQuery, 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)
|
||||
}
|
||||
|
||||
// FileSelect is the builder for selecting fields of File entities.
|
||||
type FileSelect struct {
|
||||
*FileQuery
|
||||
selector
|
||||
}
|
||||
|
||||
// Aggregate adds the given aggregation functions to the selector query.
|
||||
func (_s *FileSelect) Aggregate(fns ...AggregateFunc) *FileSelect {
|
||||
_s.fns = append(_s.fns, fns...)
|
||||
return _s
|
||||
}
|
||||
|
||||
// Scan applies the selector query and scans the result into the given value.
|
||||
func (_s *FileSelect) 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[*FileQuery, *FileSelect](ctx, _s.FileQuery, _s, _s.inters, v)
|
||||
}
|
||||
|
||||
func (_s *FileSelect) sqlScan(ctx context.Context, root *FileQuery, 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)
|
||||
}
|
||||
529
examples/fs/ent/file_update.go
Normal file
529
examples/fs/ent/file_update.go
Normal file
@@ -0,0 +1,529 @@
|
||||
// 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/examples/fs/ent/file"
|
||||
"entgo.io/ent/examples/fs/ent/predicate"
|
||||
"entgo.io/ent/schema/field"
|
||||
)
|
||||
|
||||
// FileUpdate is the builder for updating File entities.
|
||||
type FileUpdate struct {
|
||||
config
|
||||
hooks []Hook
|
||||
mutation *FileMutation
|
||||
}
|
||||
|
||||
// Where appends a list predicates to the FileUpdate builder.
|
||||
func (_u *FileUpdate) Where(ps ...predicate.File) *FileUpdate {
|
||||
_u.mutation.Where(ps...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetName sets the "name" field.
|
||||
func (_u *FileUpdate) SetName(v string) *FileUpdate {
|
||||
_u.mutation.SetName(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableName sets the "name" field if the given value is not nil.
|
||||
func (_u *FileUpdate) SetNillableName(v *string) *FileUpdate {
|
||||
if v != nil {
|
||||
_u.SetName(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetDeleted sets the "deleted" field.
|
||||
func (_u *FileUpdate) SetDeleted(v bool) *FileUpdate {
|
||||
_u.mutation.SetDeleted(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableDeleted sets the "deleted" field if the given value is not nil.
|
||||
func (_u *FileUpdate) SetNillableDeleted(v *bool) *FileUpdate {
|
||||
if v != nil {
|
||||
_u.SetDeleted(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetParentID sets the "parent_id" field.
|
||||
func (_u *FileUpdate) SetParentID(v int) *FileUpdate {
|
||||
_u.mutation.SetParentID(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableParentID sets the "parent_id" field if the given value is not nil.
|
||||
func (_u *FileUpdate) SetNillableParentID(v *int) *FileUpdate {
|
||||
if v != nil {
|
||||
_u.SetParentID(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// ClearParentID clears the value of the "parent_id" field.
|
||||
func (_u *FileUpdate) ClearParentID() *FileUpdate {
|
||||
_u.mutation.ClearParentID()
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetParent sets the "parent" edge to the File entity.
|
||||
func (_u *FileUpdate) SetParent(v *File) *FileUpdate {
|
||||
return _u.SetParentID(v.ID)
|
||||
}
|
||||
|
||||
// AddChildIDs adds the "children" edge to the File entity by IDs.
|
||||
func (_u *FileUpdate) AddChildIDs(ids ...int) *FileUpdate {
|
||||
_u.mutation.AddChildIDs(ids...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// AddChildren adds the "children" edges to the File entity.
|
||||
func (_u *FileUpdate) AddChildren(v ...*File) *FileUpdate {
|
||||
ids := make([]int, len(v))
|
||||
for i := range v {
|
||||
ids[i] = v[i].ID
|
||||
}
|
||||
return _u.AddChildIDs(ids...)
|
||||
}
|
||||
|
||||
// Mutation returns the FileMutation object of the builder.
|
||||
func (_u *FileUpdate) Mutation() *FileMutation {
|
||||
return _u.mutation
|
||||
}
|
||||
|
||||
// ClearParent clears the "parent" edge to the File entity.
|
||||
func (_u *FileUpdate) ClearParent() *FileUpdate {
|
||||
_u.mutation.ClearParent()
|
||||
return _u
|
||||
}
|
||||
|
||||
// ClearChildren clears all "children" edges to the File entity.
|
||||
func (_u *FileUpdate) ClearChildren() *FileUpdate {
|
||||
_u.mutation.ClearChildren()
|
||||
return _u
|
||||
}
|
||||
|
||||
// RemoveChildIDs removes the "children" edge to File entities by IDs.
|
||||
func (_u *FileUpdate) RemoveChildIDs(ids ...int) *FileUpdate {
|
||||
_u.mutation.RemoveChildIDs(ids...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// RemoveChildren removes "children" edges to File entities.
|
||||
func (_u *FileUpdate) RemoveChildren(v ...*File) *FileUpdate {
|
||||
ids := make([]int, len(v))
|
||||
for i := range v {
|
||||
ids[i] = v[i].ID
|
||||
}
|
||||
return _u.RemoveChildIDs(ids...)
|
||||
}
|
||||
|
||||
// Save executes the query and returns the number of nodes affected by the update operation.
|
||||
func (_u *FileUpdate) 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 *FileUpdate) SaveX(ctx context.Context) int {
|
||||
affected, err := _u.Save(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return affected
|
||||
}
|
||||
|
||||
// Exec executes the query.
|
||||
func (_u *FileUpdate) Exec(ctx context.Context) error {
|
||||
_, err := _u.Save(ctx)
|
||||
return err
|
||||
}
|
||||
|
||||
// ExecX is like Exec, but panics if an error occurs.
|
||||
func (_u *FileUpdate) ExecX(ctx context.Context) {
|
||||
if err := _u.Exec(ctx); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
func (_u *FileUpdate) sqlSave(ctx context.Context) (_node int, err error) {
|
||||
_spec := sqlgraph.NewUpdateSpec(file.Table, file.Columns, sqlgraph.NewFieldSpec(file.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.Name(); ok {
|
||||
_spec.SetField(file.FieldName, field.TypeString, value)
|
||||
}
|
||||
if value, ok := _u.mutation.Deleted(); ok {
|
||||
_spec.SetField(file.FieldDeleted, field.TypeBool, value)
|
||||
}
|
||||
if _u.mutation.ParentCleared() {
|
||||
edge := &sqlgraph.EdgeSpec{
|
||||
Rel: sqlgraph.M2O,
|
||||
Inverse: true,
|
||||
Table: file.ParentTable,
|
||||
Columns: []string{file.ParentColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: true,
|
||||
Table: file.ParentTable,
|
||||
Columns: []string{file.ParentColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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{file.Label}
|
||||
} else if sqlgraph.IsConstraintError(err) {
|
||||
err = &ConstraintError{msg: err.Error(), wrap: err}
|
||||
}
|
||||
return 0, err
|
||||
}
|
||||
_u.mutation.done = true
|
||||
return _node, nil
|
||||
}
|
||||
|
||||
// FileUpdateOne is the builder for updating a single File entity.
|
||||
type FileUpdateOne struct {
|
||||
config
|
||||
fields []string
|
||||
hooks []Hook
|
||||
mutation *FileMutation
|
||||
}
|
||||
|
||||
// SetName sets the "name" field.
|
||||
func (_u *FileUpdateOne) SetName(v string) *FileUpdateOne {
|
||||
_u.mutation.SetName(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableName sets the "name" field if the given value is not nil.
|
||||
func (_u *FileUpdateOne) SetNillableName(v *string) *FileUpdateOne {
|
||||
if v != nil {
|
||||
_u.SetName(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetDeleted sets the "deleted" field.
|
||||
func (_u *FileUpdateOne) SetDeleted(v bool) *FileUpdateOne {
|
||||
_u.mutation.SetDeleted(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableDeleted sets the "deleted" field if the given value is not nil.
|
||||
func (_u *FileUpdateOne) SetNillableDeleted(v *bool) *FileUpdateOne {
|
||||
if v != nil {
|
||||
_u.SetDeleted(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetParentID sets the "parent_id" field.
|
||||
func (_u *FileUpdateOne) SetParentID(v int) *FileUpdateOne {
|
||||
_u.mutation.SetParentID(v)
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetNillableParentID sets the "parent_id" field if the given value is not nil.
|
||||
func (_u *FileUpdateOne) SetNillableParentID(v *int) *FileUpdateOne {
|
||||
if v != nil {
|
||||
_u.SetParentID(*v)
|
||||
}
|
||||
return _u
|
||||
}
|
||||
|
||||
// ClearParentID clears the value of the "parent_id" field.
|
||||
func (_u *FileUpdateOne) ClearParentID() *FileUpdateOne {
|
||||
_u.mutation.ClearParentID()
|
||||
return _u
|
||||
}
|
||||
|
||||
// SetParent sets the "parent" edge to the File entity.
|
||||
func (_u *FileUpdateOne) SetParent(v *File) *FileUpdateOne {
|
||||
return _u.SetParentID(v.ID)
|
||||
}
|
||||
|
||||
// AddChildIDs adds the "children" edge to the File entity by IDs.
|
||||
func (_u *FileUpdateOne) AddChildIDs(ids ...int) *FileUpdateOne {
|
||||
_u.mutation.AddChildIDs(ids...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// AddChildren adds the "children" edges to the File entity.
|
||||
func (_u *FileUpdateOne) AddChildren(v ...*File) *FileUpdateOne {
|
||||
ids := make([]int, len(v))
|
||||
for i := range v {
|
||||
ids[i] = v[i].ID
|
||||
}
|
||||
return _u.AddChildIDs(ids...)
|
||||
}
|
||||
|
||||
// Mutation returns the FileMutation object of the builder.
|
||||
func (_u *FileUpdateOne) Mutation() *FileMutation {
|
||||
return _u.mutation
|
||||
}
|
||||
|
||||
// ClearParent clears the "parent" edge to the File entity.
|
||||
func (_u *FileUpdateOne) ClearParent() *FileUpdateOne {
|
||||
_u.mutation.ClearParent()
|
||||
return _u
|
||||
}
|
||||
|
||||
// ClearChildren clears all "children" edges to the File entity.
|
||||
func (_u *FileUpdateOne) ClearChildren() *FileUpdateOne {
|
||||
_u.mutation.ClearChildren()
|
||||
return _u
|
||||
}
|
||||
|
||||
// RemoveChildIDs removes the "children" edge to File entities by IDs.
|
||||
func (_u *FileUpdateOne) RemoveChildIDs(ids ...int) *FileUpdateOne {
|
||||
_u.mutation.RemoveChildIDs(ids...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// RemoveChildren removes "children" edges to File entities.
|
||||
func (_u *FileUpdateOne) RemoveChildren(v ...*File) *FileUpdateOne {
|
||||
ids := make([]int, len(v))
|
||||
for i := range v {
|
||||
ids[i] = v[i].ID
|
||||
}
|
||||
return _u.RemoveChildIDs(ids...)
|
||||
}
|
||||
|
||||
// Where appends a list predicates to the FileUpdate builder.
|
||||
func (_u *FileUpdateOne) Where(ps ...predicate.File) *FileUpdateOne {
|
||||
_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 *FileUpdateOne) Select(field string, fields ...string) *FileUpdateOne {
|
||||
_u.fields = append([]string{field}, fields...)
|
||||
return _u
|
||||
}
|
||||
|
||||
// Save executes the query and returns the updated File entity.
|
||||
func (_u *FileUpdateOne) Save(ctx context.Context) (*File, error) {
|
||||
return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
|
||||
}
|
||||
|
||||
// SaveX is like Save, but panics if an error occurs.
|
||||
func (_u *FileUpdateOne) SaveX(ctx context.Context) *File {
|
||||
node, err := _u.Save(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return node
|
||||
}
|
||||
|
||||
// Exec executes the query on the entity.
|
||||
func (_u *FileUpdateOne) Exec(ctx context.Context) error {
|
||||
_, err := _u.Save(ctx)
|
||||
return err
|
||||
}
|
||||
|
||||
// ExecX is like Exec, but panics if an error occurs.
|
||||
func (_u *FileUpdateOne) ExecX(ctx context.Context) {
|
||||
if err := _u.Exec(ctx); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
func (_u *FileUpdateOne) sqlSave(ctx context.Context) (_node *File, err error) {
|
||||
_spec := sqlgraph.NewUpdateSpec(file.Table, file.Columns, sqlgraph.NewFieldSpec(file.FieldID, field.TypeInt))
|
||||
id, ok := _u.mutation.ID()
|
||||
if !ok {
|
||||
return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "File.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, file.FieldID)
|
||||
for _, f := range fields {
|
||||
if !file.ValidColumn(f) {
|
||||
return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
|
||||
}
|
||||
if f != file.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.Name(); ok {
|
||||
_spec.SetField(file.FieldName, field.TypeString, value)
|
||||
}
|
||||
if value, ok := _u.mutation.Deleted(); ok {
|
||||
_spec.SetField(file.FieldDeleted, field.TypeBool, value)
|
||||
}
|
||||
if _u.mutation.ParentCleared() {
|
||||
edge := &sqlgraph.EdgeSpec{
|
||||
Rel: sqlgraph.M2O,
|
||||
Inverse: true,
|
||||
Table: file.ParentTable,
|
||||
Columns: []string{file.ParentColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: true,
|
||||
Table: file.ParentTable,
|
||||
Columns: []string{file.ParentColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.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: false,
|
||||
Table: file.ChildrenTable,
|
||||
Columns: []string{file.ChildrenColumn},
|
||||
Bidi: false,
|
||||
Target: &sqlgraph.EdgeTarget{
|
||||
IDSpec: sqlgraph.NewFieldSpec(file.FieldID, field.TypeInt),
|
||||
},
|
||||
}
|
||||
for _, k := range nodes {
|
||||
edge.Target.Nodes = append(edge.Target.Nodes, k)
|
||||
}
|
||||
_spec.Edges.Add = append(_spec.Edges.Add, edge)
|
||||
}
|
||||
_node = &File{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{file.Label}
|
||||
} else if sqlgraph.IsConstraintError(err) {
|
||||
err = &ConstraintError{msg: err.Error(), wrap: err}
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
_u.mutation.done = true
|
||||
return _node, nil
|
||||
}
|
||||
7
examples/fs/ent/generate.go
Normal file
7
examples/fs/ent/generate.go
Normal file
@@ -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 -mod=mod entgo.io/ent/cmd/ent generate --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
|
||||
203
examples/fs/ent/hook/hook.go
Normal file
203
examples/fs/ent/hook/hook.go
Normal file
@@ -0,0 +1,203 @@
|
||||
// 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/examples/fs/ent"
|
||||
)
|
||||
|
||||
// The FileFunc type is an adapter to allow the use of ordinary
|
||||
// function as File mutator.
|
||||
type FileFunc func(context.Context, *ent.FileMutation) (ent.Value, error)
|
||||
|
||||
// Mutate calls f(ctx, m).
|
||||
func (f FileFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
|
||||
if mv, ok := m.(*ent.FileMutation); ok {
|
||||
return f(ctx, mv)
|
||||
}
|
||||
return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.FileMutation", 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...)
|
||||
}
|
||||
68
examples/fs/ent/migrate/migrate.go
Normal file
68
examples/fs/ent/migrate/migrate.go
Normal file
@@ -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...)
|
||||
}
|
||||
44
examples/fs/ent/migrate/schema.go
Normal file
44
examples/fs/ent/migrate/schema.go
Normal file
@@ -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.
|
||||
|
||||
// Code generated by ent, DO NOT EDIT.
|
||||
|
||||
package migrate
|
||||
|
||||
import (
|
||||
"entgo.io/ent/dialect/sql/schema"
|
||||
"entgo.io/ent/schema/field"
|
||||
)
|
||||
|
||||
var (
|
||||
// FilesColumns holds the columns for the "files" table.
|
||||
FilesColumns = []*schema.Column{
|
||||
{Name: "id", Type: field.TypeInt, Increment: true},
|
||||
{Name: "name", Type: field.TypeString},
|
||||
{Name: "deleted", Type: field.TypeBool, Default: false},
|
||||
{Name: "parent_id", Type: field.TypeInt, Nullable: true},
|
||||
}
|
||||
// FilesTable holds the schema information for the "files" table.
|
||||
FilesTable = &schema.Table{
|
||||
Name: "files",
|
||||
Columns: FilesColumns,
|
||||
PrimaryKey: []*schema.Column{FilesColumns[0]},
|
||||
ForeignKeys: []*schema.ForeignKey{
|
||||
{
|
||||
Symbol: "files_files_children",
|
||||
Columns: []*schema.Column{FilesColumns[3]},
|
||||
RefColumns: []*schema.Column{FilesColumns[0]},
|
||||
OnDelete: schema.SetNull,
|
||||
},
|
||||
},
|
||||
}
|
||||
// Tables holds all the tables in the schema.
|
||||
Tables = []*schema.Table{
|
||||
FilesTable,
|
||||
}
|
||||
)
|
||||
|
||||
func init() {
|
||||
FilesTable.ForeignKeys[0].RefTable = FilesTable
|
||||
}
|
||||
200
examples/fs/ent/mutation.go
Normal file
200
examples/fs/ent/mutation.go
Normal file
@@ -0,0 +1,200 @@
|
||||
// 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"
|
||||
"sync"
|
||||
|
||||
"entgo.io/ent"
|
||||
"entgo.io/ent/examples/fs/ent/file"
|
||||
)
|
||||
|
||||
const (
|
||||
// Operation types.
|
||||
OpCreate = ent.OpCreate
|
||||
OpDelete = ent.OpDelete
|
||||
OpDeleteOne = ent.OpDeleteOne
|
||||
OpUpdate = ent.OpUpdate
|
||||
OpUpdateOne = ent.OpUpdateOne
|
||||
|
||||
// Node types.
|
||||
TypeFile = "File"
|
||||
)
|
||||
|
||||
// FileMutation represents an operation that mutates the File nodes in the graph.
|
||||
type FileMutation struct {
|
||||
file.Mutation
|
||||
config
|
||||
id *int
|
||||
done bool
|
||||
oldValue func(context.Context) (*File, error)
|
||||
}
|
||||
|
||||
var _ ent.Mutation = (*FileMutation)(nil)
|
||||
|
||||
// fileOption allows management of the mutation configuration using functional options.
|
||||
type fileOption func(*FileMutation)
|
||||
|
||||
// newFileMutation creates new mutation for the File entity.
|
||||
func newFileMutation(c config, op Op, opts ...fileOption) *FileMutation {
|
||||
m := &FileMutation{
|
||||
Mutation: *file.NewMutation(op),
|
||||
config: c,
|
||||
}
|
||||
for _, opt := range opts {
|
||||
opt(m)
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// ID returns the ID value in the mutation. Note that the ID is only available
|
||||
// if it was provided to the builder or after it was returned from the database.
|
||||
func (m *FileMutation) ID() (id int, exists bool) {
|
||||
if m.id == nil {
|
||||
return
|
||||
}
|
||||
return *m.id, true
|
||||
}
|
||||
|
||||
// withFileID sets the ID field of the mutation.
|
||||
func withFileID(id int) fileOption {
|
||||
return func(m *FileMutation) {
|
||||
var (
|
||||
err error
|
||||
once sync.Once
|
||||
value *File
|
||||
)
|
||||
m.oldValue = func(ctx context.Context) (*File, error) {
|
||||
once.Do(func() {
|
||||
if m.done {
|
||||
err = errors.New("querying old values post mutation is not allowed")
|
||||
} else {
|
||||
value, err = m.Client().File.Get(ctx, id)
|
||||
}
|
||||
})
|
||||
return value, err
|
||||
}
|
||||
m.id = &id
|
||||
}
|
||||
}
|
||||
|
||||
// withFile sets the old File of the mutation.
|
||||
func withFile(node *File) fileOption {
|
||||
return func(m *FileMutation) {
|
||||
m.oldValue = func(context.Context) (*File, error) {
|
||||
return node, nil
|
||||
}
|
||||
m.id = &node.ID
|
||||
}
|
||||
}
|
||||
|
||||
// Client returns a new `ent.Client` from the mutation. If the mutation was
|
||||
// executed in a transaction (ent.Tx), a transactional client is returned.
|
||||
func (m FileMutation) Client() *Client {
|
||||
client := &Client{config: m.config}
|
||||
client.init()
|
||||
return client
|
||||
}
|
||||
|
||||
// Tx returns an `ent.Tx` for mutations that were executed in transactions;
|
||||
// it returns an error otherwise.
|
||||
func (m FileMutation) Tx() (*Tx, error) {
|
||||
if _, ok := m.driver.(*txDriver); !ok {
|
||||
return nil, errors.New("ent: mutation is not running in a transaction")
|
||||
}
|
||||
tx := &Tx{config: m.config}
|
||||
tx.init()
|
||||
return tx, nil
|
||||
}
|
||||
|
||||
// IDs queries the database and returns the entity ids that match the mutation's predicate.
|
||||
// That means, if the mutation is applied within a transaction with an isolation level such
|
||||
// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
|
||||
// or updated by the mutation.
|
||||
func (m *FileMutation) IDs(ctx context.Context) ([]int, error) {
|
||||
switch {
|
||||
case m.Op().Is(OpUpdateOne | OpDeleteOne):
|
||||
id, exists := m.ID()
|
||||
if exists {
|
||||
return []int{id}, nil
|
||||
}
|
||||
fallthrough
|
||||
case m.Op().Is(OpUpdate | OpDelete):
|
||||
return m.Client().File.Query().Where(m.Predicates()...).IDs(ctx)
|
||||
default:
|
||||
return nil, fmt.Errorf("IDs is not allowed on %s operations", m.Op())
|
||||
}
|
||||
}
|
||||
|
||||
// OldName returns the old "name" field's value of the File entity.
|
||||
// If the File object wasn't provided to the builder, the object is fetched from the database.
|
||||
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
|
||||
func (m *FileMutation) OldName(ctx context.Context) (v string, err error) {
|
||||
if !m.Op().Is(OpUpdateOne) {
|
||||
return v, errors.New("OldName is only allowed on UpdateOne operations")
|
||||
}
|
||||
if _, exists := m.ID(); !exists || m.oldValue == nil {
|
||||
return v, errors.New("OldName requires an ID field in the mutation")
|
||||
}
|
||||
oldValue, err := m.oldValue(ctx)
|
||||
if err != nil {
|
||||
return v, fmt.Errorf("querying old value for OldName: %w", err)
|
||||
}
|
||||
return oldValue.Name, nil
|
||||
}
|
||||
|
||||
// OldDeleted returns the old "deleted" field's value of the File entity.
|
||||
// If the File object wasn't provided to the builder, the object is fetched from the database.
|
||||
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
|
||||
func (m *FileMutation) OldDeleted(ctx context.Context) (v bool, err error) {
|
||||
if !m.Op().Is(OpUpdateOne) {
|
||||
return v, errors.New("OldDeleted is only allowed on UpdateOne operations")
|
||||
}
|
||||
if _, exists := m.ID(); !exists || m.oldValue == nil {
|
||||
return v, errors.New("OldDeleted requires an ID field in the mutation")
|
||||
}
|
||||
oldValue, err := m.oldValue(ctx)
|
||||
if err != nil {
|
||||
return v, fmt.Errorf("querying old value for OldDeleted: %w", err)
|
||||
}
|
||||
return oldValue.Deleted, nil
|
||||
}
|
||||
|
||||
// OldParentID returns the old "parent_id" field's value of the File entity.
|
||||
// If the File object wasn't provided to the builder, the object is fetched from the database.
|
||||
// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
|
||||
func (m *FileMutation) OldParentID(ctx context.Context) (v int, err error) {
|
||||
if !m.Op().Is(OpUpdateOne) {
|
||||
return v, errors.New("OldParentID is only allowed on UpdateOne operations")
|
||||
}
|
||||
if _, exists := m.ID(); !exists || m.oldValue == nil {
|
||||
return v, errors.New("OldParentID requires an ID field in the mutation")
|
||||
}
|
||||
oldValue, err := m.oldValue(ctx)
|
||||
if err != nil {
|
||||
return v, fmt.Errorf("querying old value for OldParentID: %w", err)
|
||||
}
|
||||
return oldValue.ParentID, nil
|
||||
}
|
||||
|
||||
// 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 *FileMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
|
||||
switch name {
|
||||
case file.FieldName:
|
||||
return m.OldName(ctx)
|
||||
case file.FieldDeleted:
|
||||
return m.OldDeleted(ctx)
|
||||
case file.FieldParentID:
|
||||
return m.OldParentID(ctx)
|
||||
}
|
||||
return nil, fmt.Errorf("unknown File field %s", name)
|
||||
}
|
||||
14
examples/fs/ent/predicate/predicate.go
Normal file
14
examples/fs/ent/predicate/predicate.go
Normal file
@@ -0,0 +1,14 @@
|
||||
// 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"
|
||||
)
|
||||
|
||||
// File is the predicate function for file builders.
|
||||
type File func(*sql.Selector)
|
||||
24
examples/fs/ent/runtime.go
Normal file
24
examples/fs/ent/runtime.go
Normal file
@@ -0,0 +1,24 @@
|
||||
// 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 (
|
||||
"entgo.io/ent/examples/fs/ent/file"
|
||||
"entgo.io/ent/examples/fs/ent/schema"
|
||||
)
|
||||
|
||||
// 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() {
|
||||
fileFields := schema.File{}.Fields()
|
||||
_ = fileFields
|
||||
// fileDescDeleted is the schema descriptor for deleted field.
|
||||
fileDescDeleted := fileFields[1].Descriptor()
|
||||
// file.DefaultDeleted holds the default value on creation for the deleted field.
|
||||
file.DefaultDeleted = fileDescDeleted.Default.(bool)
|
||||
}
|
||||
13
examples/fs/ent/runtime/runtime.go
Normal file
13
examples/fs/ent/runtime/runtime.go
Normal file
@@ -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/examples/fs/ent/runtime.go
|
||||
|
||||
const (
|
||||
Version = "v0.0.0-00010101000000-000000000000" // Version of ent codegen.
|
||||
)
|
||||
37
examples/fs/ent/schema/file.go
Normal file
37
examples/fs/ent/schema/file.go
Normal file
@@ -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"
|
||||
)
|
||||
|
||||
// File holds the schema definition for the File entity.
|
||||
type File struct {
|
||||
ent.Schema
|
||||
}
|
||||
|
||||
// Fields of the File.
|
||||
func (File) Fields() []ent.Field {
|
||||
return []ent.Field{
|
||||
field.String("name"),
|
||||
field.Bool("deleted").
|
||||
Default(false),
|
||||
field.Int("parent_id").
|
||||
Optional(),
|
||||
}
|
||||
}
|
||||
|
||||
// Edges of the File.
|
||||
func (File) Edges() []ent.Edge {
|
||||
return []ent.Edge{
|
||||
edge.To("children", File.Type).
|
||||
From("parent").
|
||||
Unique().
|
||||
Field("parent_id"),
|
||||
}
|
||||
}
|
||||
214
examples/fs/ent/tx.go
Normal file
214
examples/fs/ent/tx.go
Normal file
@@ -0,0 +1,214 @@
|
||||
// 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
|
||||
// File is the client for interacting with the File builders.
|
||||
File *FileClient
|
||||
|
||||
// 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.File = NewFileClient(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: File.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)
|
||||
97
examples/fs/example_test.go
Normal file
97
examples/fs/example_test.go
Normal file
@@ -0,0 +1,97 @@
|
||||
// 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 main
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
|
||||
"entgo.io/ent/dialect/sql"
|
||||
"entgo.io/ent/examples/fs/ent"
|
||||
"entgo.io/ent/examples/fs/ent/file"
|
||||
|
||||
_ "github.com/mattn/go-sqlite3"
|
||||
)
|
||||
|
||||
func Example_recursiveTraversal() {
|
||||
client, err := ent.Open("sqlite3", "file:ent?mode=memory&cache=shared&_fk=1")
|
||||
if err != nil {
|
||||
log.Fatalf("failed opening connection to sqlite: %v", err)
|
||||
}
|
||||
defer client.Close()
|
||||
ctx := context.Background()
|
||||
// Run the auto migration tool.
|
||||
if err := client.Schema.Create(ctx); err != nil {
|
||||
log.Fatalf("failed creating schema resources: %v", err)
|
||||
}
|
||||
|
||||
// Add multiple files in the following tree structure:
|
||||
//
|
||||
// a/
|
||||
// ├─ b/
|
||||
// │ ├─ ba
|
||||
// │ ├─ bb
|
||||
// │ └─ bc (deleted)
|
||||
// ├─ c/ (deleted)
|
||||
// │ ├─ ca
|
||||
// │ └─ cb
|
||||
// └─ d (deleted)
|
||||
//
|
||||
a := client.File.Create().SetName("a").SaveX(ctx)
|
||||
b := client.File.Create().SetName("b").SetParent(a).SaveX(ctx)
|
||||
client.File.Create().SetName("ba").SetParent(b).SaveX(ctx)
|
||||
client.File.Create().SetName("bb").SetParent(b).SaveX(ctx)
|
||||
client.File.Create().SetName("bc").SetParent(b).SetDeleted(true).SaveX(ctx)
|
||||
c := client.File.Create().SetName("c").SetParent(a).SetDeleted(true).SaveX(ctx)
|
||||
client.File.Create().SetName("ca").SetParent(c).SaveX(ctx)
|
||||
client.File.Create().SetName("cb").SetParent(c).SaveX(ctx)
|
||||
client.File.Create().SetName("d").SetParent(a).SetDeleted(true).SaveX(ctx)
|
||||
|
||||
// Query undeleted files:
|
||||
//
|
||||
// a/
|
||||
// └─ b/
|
||||
// ├─ ba
|
||||
// └─ bb
|
||||
//
|
||||
names := client.File.Query().
|
||||
Where(func(s *sql.Selector) {
|
||||
t1, t2 := sql.Table(file.Table), sql.Table(file.Table)
|
||||
with := sql.WithRecursive("undeleted", file.FieldID, file.FieldParentID)
|
||||
with.As(
|
||||
// The initial `SELECT` statement executed once at the start,
|
||||
// and produces the initial row or rows for the recursion.
|
||||
sql.Select(t1.Columns(file.FieldID, file.FieldParentID)...).
|
||||
From(t1).
|
||||
Where(
|
||||
sql.And(
|
||||
sql.IsNull(t1.C(file.FieldParentID)),
|
||||
sql.EQ(t1.C(file.FieldDeleted), false),
|
||||
),
|
||||
).
|
||||
// Merge the `SELECT` statement above with the following:
|
||||
UnionAll(
|
||||
// A `SELECT` statement that produces additional rows and recurses by referring
|
||||
// to the CTE name (e.g. "undeleted"), and ends when there are no more new rows.
|
||||
sql.Select(t2.Columns(file.FieldID, file.FieldParentID)...).
|
||||
From(t2).
|
||||
Join(with).
|
||||
On(t2.C(file.FieldParentID), with.C(file.FieldID)).
|
||||
Where(
|
||||
sql.EQ(t1.C(file.FieldDeleted), false),
|
||||
),
|
||||
),
|
||||
)
|
||||
// Join the root `SELECT` query with the CTE result (`WITH` clause).
|
||||
s.Prefix(with).Join(with).On(s.C(file.FieldID), with.C(file.FieldID))
|
||||
}).
|
||||
Select(file.FieldName).
|
||||
StringsX(ctx)
|
||||
fmt.Printf("%q\n", names)
|
||||
|
||||
// Output:
|
||||
// ["a" "b" "ba" "bb"]
|
||||
}
|
||||
Reference in New Issue
Block a user