/
client.go
337 lines (290 loc) · 10.2 KB
/
client.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
// 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 entc, DO NOT EDIT.
package ent
import (
"context"
"fmt"
"log"
"github.com/facebook/ent/examples/o2o2types/ent/migrate"
"github.com/facebook/ent/examples/o2o2types/ent/card"
"github.com/facebook/ent/examples/o2o2types/ent/user"
"github.com/facebook/ent/dialect"
"github.com/facebook/ent/dialect/sql"
"github.com/facebook/ent/dialect/sql/sqlgraph"
)
// Client is the client that holds all ent builders.
type Client struct {
config
// Schema is the client for creating, migrating and dropping schema.
Schema *migrate.Schema
// Card is the client for interacting with the Card builders.
Card *CardClient
// User is the client for interacting with the User builders.
User *UserClient
}
// NewClient creates a new client configured with the given options.
func NewClient(opts ...Option) *Client {
cfg := config{log: log.Println, hooks: &hooks{}}
cfg.options(opts...)
client := &Client{config: cfg}
client.init()
return client
}
func (c *Client) init() {
c.Schema = migrate.NewSchema(c.driver)
c.Card = NewCardClient(c.config)
c.User = NewUserClient(c.config)
}
// Open opens a database/sql.DB specified by the driver name and
// the data source name, and returns a new client attached to it.
// Optional parameters can be added for configuring the client.
func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
switch driverName {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
drv, err := sql.Open(driverName, dataSourceName)
if err != nil {
return nil, err
}
return NewClient(append(options, Driver(drv))...), nil
default:
return nil, fmt.Errorf("unsupported driver: %q", driverName)
}
}
// Tx returns a new transactional client. The provided context
// is used until the transaction is committed or rolled back.
func (c *Client) Tx(ctx context.Context) (*Tx, error) {
if _, ok := c.driver.(*txDriver); ok {
return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
}
tx, err := newTx(ctx, c.driver)
if err != nil {
return nil, fmt.Errorf("ent: starting a transaction: %v", err)
}
cfg := config{driver: tx, log: c.log, debug: c.debug, hooks: c.hooks}
return &Tx{
ctx: ctx,
config: cfg,
Card: NewCardClient(cfg),
User: NewUserClient(cfg),
}, nil
}
// BeginTx returns a transactional client with options.
func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
if _, ok := c.driver.(*txDriver); ok {
return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
}
tx, err := c.driver.(*sql.Driver).BeginTx(ctx, opts)
if err != nil {
return nil, fmt.Errorf("ent: starting a transaction: %v", err)
}
cfg := config{driver: &txDriver{tx: tx, drv: c.driver}, log: c.log, debug: c.debug, hooks: c.hooks}
return &Tx{
config: cfg,
Card: NewCardClient(cfg),
User: NewUserClient(cfg),
}, nil
}
// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
//
// client.Debug().
// Card.
// Query().
// Count(ctx)
//
func (c *Client) Debug() *Client {
if c.debug {
return c
}
cfg := config{driver: dialect.Debug(c.driver, c.log), log: c.log, debug: true, hooks: c.hooks}
client := &Client{config: cfg}
client.init()
return client
}
// Close closes the database connection and prevents new queries from starting.
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.Card.Use(hooks...)
c.User.Use(hooks...)
}
// CardClient is a client for the Card schema.
type CardClient struct {
config
}
// NewCardClient returns a client for the Card from the given config.
func NewCardClient(c config) *CardClient {
return &CardClient{config: c}
}
// Use adds a list of mutation hooks to the hooks stack.
// A call to `Use(f, g, h)` equals to `card.Hooks(f(g(h())))`.
func (c *CardClient) Use(hooks ...Hook) {
c.hooks.Card = append(c.hooks.Card, hooks...)
}
// Create returns a create builder for Card.
func (c *CardClient) Create() *CardCreate {
mutation := newCardMutation(c.config, OpCreate)
return &CardCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// BulkCreate returns a builder for creating a bulk of Card entities.
func (c *CardClient) CreateBulk(builders ...*CardCreate) *CardCreateBulk {
return &CardCreateBulk{config: c.config, builders: builders}
}
// Update returns an update builder for Card.
func (c *CardClient) Update() *CardUpdate {
mutation := newCardMutation(c.config, OpUpdate)
return &CardUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// UpdateOne returns an update builder for the given entity.
func (c *CardClient) UpdateOne(ca *Card) *CardUpdateOne {
mutation := newCardMutation(c.config, OpUpdateOne, withCard(ca))
return &CardUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// UpdateOneID returns an update builder for the given id.
func (c *CardClient) UpdateOneID(id int) *CardUpdateOne {
mutation := newCardMutation(c.config, OpUpdateOne, withCardID(id))
return &CardUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// Delete returns a delete builder for Card.
func (c *CardClient) Delete() *CardDelete {
mutation := newCardMutation(c.config, OpDelete)
return &CardDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// DeleteOne returns a delete builder for the given entity.
func (c *CardClient) DeleteOne(ca *Card) *CardDeleteOne {
return c.DeleteOneID(ca.ID)
}
// DeleteOneID returns a delete builder for the given id.
func (c *CardClient) DeleteOneID(id int) *CardDeleteOne {
builder := c.Delete().Where(card.ID(id))
builder.mutation.id = &id
builder.mutation.op = OpDeleteOne
return &CardDeleteOne{builder}
}
// Query returns a query builder for Card.
func (c *CardClient) Query() *CardQuery {
return &CardQuery{config: c.config}
}
// Get returns a Card entity by its id.
func (c *CardClient) Get(ctx context.Context, id int) (*Card, error) {
return c.Query().Where(card.ID(id)).Only(ctx)
}
// GetX is like Get, but panics if an error occurs.
func (c *CardClient) GetX(ctx context.Context, id int) *Card {
ca, err := c.Get(ctx, id)
if err != nil {
panic(err)
}
return ca
}
// QueryOwner queries the owner edge of a Card.
func (c *CardClient) QueryOwner(ca *Card) *UserQuery {
query := &UserQuery{config: c.config}
query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
id := ca.ID
step := sqlgraph.NewStep(
sqlgraph.From(card.Table, card.FieldID, id),
sqlgraph.To(user.Table, user.FieldID),
sqlgraph.Edge(sqlgraph.O2O, true, card.OwnerTable, card.OwnerColumn),
)
fromV = sqlgraph.Neighbors(ca.driver.Dialect(), step)
return fromV, nil
}
return query
}
// Hooks returns the client hooks.
func (c *CardClient) Hooks() []Hook {
return c.hooks.Card
}
// UserClient is a client for the User schema.
type UserClient struct {
config
}
// NewUserClient returns a client for the User from the given config.
func NewUserClient(c config) *UserClient {
return &UserClient{config: c}
}
// Use adds a list of mutation hooks to the hooks stack.
// A call to `Use(f, g, h)` equals to `user.Hooks(f(g(h())))`.
func (c *UserClient) Use(hooks ...Hook) {
c.hooks.User = append(c.hooks.User, hooks...)
}
// Create returns a create builder for User.
func (c *UserClient) Create() *UserCreate {
mutation := newUserMutation(c.config, OpCreate)
return &UserCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// BulkCreate returns a builder for creating a bulk of User entities.
func (c *UserClient) CreateBulk(builders ...*UserCreate) *UserCreateBulk {
return &UserCreateBulk{config: c.config, builders: builders}
}
// Update returns an update builder for User.
func (c *UserClient) Update() *UserUpdate {
mutation := newUserMutation(c.config, OpUpdate)
return &UserUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// UpdateOne returns an update builder for the given entity.
func (c *UserClient) UpdateOne(u *User) *UserUpdateOne {
mutation := newUserMutation(c.config, OpUpdateOne, withUser(u))
return &UserUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// UpdateOneID returns an update builder for the given id.
func (c *UserClient) UpdateOneID(id int) *UserUpdateOne {
mutation := newUserMutation(c.config, OpUpdateOne, withUserID(id))
return &UserUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// Delete returns a delete builder for User.
func (c *UserClient) Delete() *UserDelete {
mutation := newUserMutation(c.config, OpDelete)
return &UserDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
}
// DeleteOne returns a delete builder for the given entity.
func (c *UserClient) DeleteOne(u *User) *UserDeleteOne {
return c.DeleteOneID(u.ID)
}
// DeleteOneID returns a delete builder for the given id.
func (c *UserClient) DeleteOneID(id int) *UserDeleteOne {
builder := c.Delete().Where(user.ID(id))
builder.mutation.id = &id
builder.mutation.op = OpDeleteOne
return &UserDeleteOne{builder}
}
// Query returns a query builder for User.
func (c *UserClient) Query() *UserQuery {
return &UserQuery{config: c.config}
}
// Get returns a User entity by its id.
func (c *UserClient) Get(ctx context.Context, id int) (*User, error) {
return c.Query().Where(user.ID(id)).Only(ctx)
}
// GetX is like Get, but panics if an error occurs.
func (c *UserClient) GetX(ctx context.Context, id int) *User {
u, err := c.Get(ctx, id)
if err != nil {
panic(err)
}
return u
}
// QueryCard queries the card edge of a User.
func (c *UserClient) QueryCard(u *User) *CardQuery {
query := &CardQuery{config: c.config}
query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
id := u.ID
step := sqlgraph.NewStep(
sqlgraph.From(user.Table, user.FieldID, id),
sqlgraph.To(card.Table, card.FieldID),
sqlgraph.Edge(sqlgraph.O2O, false, user.CardTable, user.CardColumn),
)
fromV = sqlgraph.Neighbors(u.driver.Dialect(), step)
return fromV, nil
}
return query
}
// Hooks returns the client hooks.
func (c *UserClient) Hooks() []Hook {
return c.hooks.User
}