/
mutation.go
505 lines (450 loc) · 13.2 KB
/
mutation.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
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
// 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"
"sync"
"entgo.io/ent/examples/m2mbidi/ent/predicate"
"entgo.io/ent/examples/m2mbidi/ent/user"
"entgo.io/ent"
)
const (
// Operation types.
OpCreate = ent.OpCreate
OpDelete = ent.OpDelete
OpDeleteOne = ent.OpDeleteOne
OpUpdate = ent.OpUpdate
OpUpdateOne = ent.OpUpdateOne
// Node types.
TypeUser = "User"
)
// UserMutation represents an operation that mutates the User nodes in the graph.
type UserMutation struct {
config
op Op
typ string
id *int
age *int
addage *int
name *string
clearedFields map[string]struct{}
friends map[int]struct{}
removedfriends map[int]struct{}
clearedfriends bool
done bool
oldValue func(context.Context) (*User, error)
predicates []predicate.User
}
var _ ent.Mutation = (*UserMutation)(nil)
// userOption allows management of the mutation configuration using functional options.
type userOption func(*UserMutation)
// newUserMutation creates new mutation for the User entity.
func newUserMutation(c config, op Op, opts ...userOption) *UserMutation {
m := &UserMutation{
config: c,
op: op,
typ: TypeUser,
clearedFields: make(map[string]struct{}),
}
for _, opt := range opts {
opt(m)
}
return m
}
// withUserID sets the ID field of the mutation.
func withUserID(id int) userOption {
return func(m *UserMutation) {
var (
err error
once sync.Once
value *User
)
m.oldValue = func(ctx context.Context) (*User, error) {
once.Do(func() {
if m.done {
err = fmt.Errorf("querying old values post mutation is not allowed")
} else {
value, err = m.Client().User.Get(ctx, id)
}
})
return value, err
}
m.id = &id
}
}
// withUser sets the old User of the mutation.
func withUser(node *User) userOption {
return func(m *UserMutation) {
m.oldValue = func(context.Context) (*User, 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 UserMutation) 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 UserMutation) Tx() (*Tx, error) {
if _, ok := m.driver.(*txDriver); !ok {
return nil, fmt.Errorf("ent: mutation is not running in a transaction")
}
tx := &Tx{config: m.config}
tx.init()
return tx, nil
}
// 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 *UserMutation) ID() (id int, exists bool) {
if m.id == nil {
return
}
return *m.id, true
}
// SetAge sets the "age" field.
func (m *UserMutation) SetAge(i int) {
m.age = &i
m.addage = nil
}
// Age returns the value of the "age" field in the mutation.
func (m *UserMutation) Age() (r int, exists bool) {
v := m.age
if v == nil {
return
}
return *v, true
}
// OldAge returns the old "age" field's value of the User entity.
// If the User 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 *UserMutation) OldAge(ctx context.Context) (v int, err error) {
if !m.op.Is(OpUpdateOne) {
return v, fmt.Errorf("OldAge is only allowed on UpdateOne operations")
}
if m.id == nil || m.oldValue == nil {
return v, fmt.Errorf("OldAge requires an ID field in the mutation")
}
oldValue, err := m.oldValue(ctx)
if err != nil {
return v, fmt.Errorf("querying old value for OldAge: %w", err)
}
return oldValue.Age, nil
}
// AddAge adds i to the "age" field.
func (m *UserMutation) AddAge(i int) {
if m.addage != nil {
*m.addage += i
} else {
m.addage = &i
}
}
// AddedAge returns the value that was added to the "age" field in this mutation.
func (m *UserMutation) AddedAge() (r int, exists bool) {
v := m.addage
if v == nil {
return
}
return *v, true
}
// ResetAge resets all changes to the "age" field.
func (m *UserMutation) ResetAge() {
m.age = nil
m.addage = nil
}
// SetName sets the "name" field.
func (m *UserMutation) SetName(s string) {
m.name = &s
}
// Name returns the value of the "name" field in the mutation.
func (m *UserMutation) Name() (r string, exists bool) {
v := m.name
if v == nil {
return
}
return *v, true
}
// OldName returns the old "name" field's value of the User entity.
// If the User 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 *UserMutation) OldName(ctx context.Context) (v string, err error) {
if !m.op.Is(OpUpdateOne) {
return v, fmt.Errorf("OldName is only allowed on UpdateOne operations")
}
if m.id == nil || m.oldValue == nil {
return v, fmt.Errorf("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
}
// ResetName resets all changes to the "name" field.
func (m *UserMutation) ResetName() {
m.name = nil
}
// AddFriendIDs adds the "friends" edge to the User entity by ids.
func (m *UserMutation) AddFriendIDs(ids ...int) {
if m.friends == nil {
m.friends = make(map[int]struct{})
}
for i := range ids {
m.friends[ids[i]] = struct{}{}
}
}
// ClearFriends clears the "friends" edge to the User entity.
func (m *UserMutation) ClearFriends() {
m.clearedfriends = true
}
// FriendsCleared reports if the "friends" edge to the User entity was cleared.
func (m *UserMutation) FriendsCleared() bool {
return m.clearedfriends
}
// RemoveFriendIDs removes the "friends" edge to the User entity by IDs.
func (m *UserMutation) RemoveFriendIDs(ids ...int) {
if m.removedfriends == nil {
m.removedfriends = make(map[int]struct{})
}
for i := range ids {
delete(m.friends, ids[i])
m.removedfriends[ids[i]] = struct{}{}
}
}
// RemovedFriends returns the removed IDs of the "friends" edge to the User entity.
func (m *UserMutation) RemovedFriendsIDs() (ids []int) {
for id := range m.removedfriends {
ids = append(ids, id)
}
return
}
// FriendsIDs returns the "friends" edge IDs in the mutation.
func (m *UserMutation) FriendsIDs() (ids []int) {
for id := range m.friends {
ids = append(ids, id)
}
return
}
// ResetFriends resets all changes to the "friends" edge.
func (m *UserMutation) ResetFriends() {
m.friends = nil
m.clearedfriends = false
m.removedfriends = nil
}
// Where appends a list predicates to the UserMutation builder.
func (m *UserMutation) Where(ps ...predicate.User) {
m.predicates = append(m.predicates, ps...)
}
// Op returns the operation name.
func (m *UserMutation) Op() Op {
return m.op
}
// Type returns the node type of this mutation (User).
func (m *UserMutation) 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 *UserMutation) Fields() []string {
fields := make([]string, 0, 2)
if m.age != nil {
fields = append(fields, user.FieldAge)
}
if m.name != nil {
fields = append(fields, user.FieldName)
}
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 *UserMutation) Field(name string) (ent.Value, bool) {
switch name {
case user.FieldAge:
return m.Age()
case user.FieldName:
return m.Name()
}
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 *UserMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
switch name {
case user.FieldAge:
return m.OldAge(ctx)
case user.FieldName:
return m.OldName(ctx)
}
return nil, fmt.Errorf("unknown User field %s", name)
}
// SetField sets the value of a field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *UserMutation) SetField(name string, value ent.Value) error {
switch name {
case user.FieldAge:
v, ok := value.(int)
if !ok {
return fmt.Errorf("unexpected type %T for field %s", value, name)
}
m.SetAge(v)
return nil
case user.FieldName:
v, ok := value.(string)
if !ok {
return fmt.Errorf("unexpected type %T for field %s", value, name)
}
m.SetName(v)
return nil
}
return fmt.Errorf("unknown User field %s", name)
}
// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *UserMutation) AddedFields() []string {
var fields []string
if m.addage != nil {
fields = append(fields, user.FieldAge)
}
return fields
}
// AddedField returns the numeric value that was incremented/decremented on a field
// with the given name. The second boolean return value indicates that this field
// was not set, or was not defined in the schema.
func (m *UserMutation) AddedField(name string) (ent.Value, bool) {
switch name {
case user.FieldAge:
return m.AddedAge()
}
return nil, false
}
// AddField adds the value to the field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *UserMutation) AddField(name string, value ent.Value) error {
switch name {
case user.FieldAge:
v, ok := value.(int)
if !ok {
return fmt.Errorf("unexpected type %T for field %s", value, name)
}
m.AddAge(v)
return nil
}
return fmt.Errorf("unknown User numeric field %s", name)
}
// ClearedFields returns all nullable fields that were cleared during this
// mutation.
func (m *UserMutation) ClearedFields() []string {
return nil
}
// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *UserMutation) 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 *UserMutation) ClearField(name string) error {
return fmt.Errorf("unknown User nullable field %s", name)
}
// ResetField resets all changes in the mutation for the field with the given name.
// It returns an error if the field is not defined in the schema.
func (m *UserMutation) ResetField(name string) error {
switch name {
case user.FieldAge:
m.ResetAge()
return nil
case user.FieldName:
m.ResetName()
return nil
}
return fmt.Errorf("unknown User field %s", name)
}
// AddedEdges returns all edge names that were set/added in this mutation.
func (m *UserMutation) AddedEdges() []string {
edges := make([]string, 0, 1)
if m.friends != nil {
edges = append(edges, user.EdgeFriends)
}
return edges
}
// AddedIDs returns all IDs (to other nodes) that were added for the given edge
// name in this mutation.
func (m *UserMutation) AddedIDs(name string) []ent.Value {
switch name {
case user.EdgeFriends:
ids := make([]ent.Value, 0, len(m.friends))
for id := range m.friends {
ids = append(ids, id)
}
return ids
}
return nil
}
// RemovedEdges returns all edge names that were removed in this mutation.
func (m *UserMutation) RemovedEdges() []string {
edges := make([]string, 0, 1)
if m.removedfriends != nil {
edges = append(edges, user.EdgeFriends)
}
return edges
}
// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
// the given name in this mutation.
func (m *UserMutation) RemovedIDs(name string) []ent.Value {
switch name {
case user.EdgeFriends:
ids := make([]ent.Value, 0, len(m.removedfriends))
for id := range m.removedfriends {
ids = append(ids, id)
}
return ids
}
return nil
}
// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *UserMutation) ClearedEdges() []string {
edges := make([]string, 0, 1)
if m.clearedfriends {
edges = append(edges, user.EdgeFriends)
}
return edges
}
// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *UserMutation) EdgeCleared(name string) bool {
switch name {
case user.EdgeFriends:
return m.clearedfriends
}
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 *UserMutation) ClearEdge(name string) error {
switch name {
}
return fmt.Errorf("unknown User unique edge %s", name)
}
// ResetEdge resets all changes to the edge with the given name in this mutation.
// It returns an error if the edge is not defined in the schema.
func (m *UserMutation) ResetEdge(name string) error {
switch name {
case user.EdgeFriends:
m.ResetFriends()
return nil
}
return fmt.Errorf("unknown User edge %s", name)
}