Don Newton | 379ae25 | 2019-04-01 12:17:06 -0400 | [diff] [blame^] | 1 | // Copyright (C) MongoDB, Inc. 2017-present. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 4 | // not use this file except in compliance with the License. You may obtain |
| 5 | // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| 6 | |
| 7 | package mongo |
| 8 | |
| 9 | import ( |
| 10 | "context" |
| 11 | "errors" |
| 12 | "strings" |
| 13 | |
| 14 | "github.com/mongodb/mongo-go-driver/bson/bsoncodec" |
| 15 | "github.com/mongodb/mongo-go-driver/mongo/options" |
| 16 | "github.com/mongodb/mongo-go-driver/mongo/readconcern" |
| 17 | "github.com/mongodb/mongo-go-driver/mongo/readpref" |
| 18 | "github.com/mongodb/mongo-go-driver/mongo/writeconcern" |
| 19 | "github.com/mongodb/mongo-go-driver/x/bsonx" |
| 20 | "github.com/mongodb/mongo-go-driver/x/mongo/driver" |
| 21 | "github.com/mongodb/mongo-go-driver/x/mongo/driver/session" |
| 22 | "github.com/mongodb/mongo-go-driver/x/network/command" |
| 23 | "github.com/mongodb/mongo-go-driver/x/network/description" |
| 24 | ) |
| 25 | |
| 26 | // Collection performs operations on a given collection. |
| 27 | type Collection struct { |
| 28 | client *Client |
| 29 | db *Database |
| 30 | name string |
| 31 | readConcern *readconcern.ReadConcern |
| 32 | writeConcern *writeconcern.WriteConcern |
| 33 | readPreference *readpref.ReadPref |
| 34 | readSelector description.ServerSelector |
| 35 | writeSelector description.ServerSelector |
| 36 | registry *bsoncodec.Registry |
| 37 | } |
| 38 | |
| 39 | func newCollection(db *Database, name string, opts ...*options.CollectionOptions) *Collection { |
| 40 | collOpt := options.MergeCollectionOptions(opts...) |
| 41 | |
| 42 | rc := db.readConcern |
| 43 | if collOpt.ReadConcern != nil { |
| 44 | rc = collOpt.ReadConcern |
| 45 | } |
| 46 | |
| 47 | wc := db.writeConcern |
| 48 | if collOpt.WriteConcern != nil { |
| 49 | wc = collOpt.WriteConcern |
| 50 | } |
| 51 | |
| 52 | rp := db.readPreference |
| 53 | if collOpt.ReadPreference != nil { |
| 54 | rp = collOpt.ReadPreference |
| 55 | } |
| 56 | |
| 57 | reg := db.registry |
| 58 | if collOpt.Registry != nil { |
| 59 | reg = collOpt.Registry |
| 60 | } |
| 61 | |
| 62 | readSelector := description.CompositeSelector([]description.ServerSelector{ |
| 63 | description.ReadPrefSelector(rp), |
| 64 | description.LatencySelector(db.client.localThreshold), |
| 65 | }) |
| 66 | |
| 67 | writeSelector := description.CompositeSelector([]description.ServerSelector{ |
| 68 | description.WriteSelector(), |
| 69 | description.LatencySelector(db.client.localThreshold), |
| 70 | }) |
| 71 | |
| 72 | coll := &Collection{ |
| 73 | client: db.client, |
| 74 | db: db, |
| 75 | name: name, |
| 76 | readPreference: rp, |
| 77 | readConcern: rc, |
| 78 | writeConcern: wc, |
| 79 | readSelector: readSelector, |
| 80 | writeSelector: writeSelector, |
| 81 | registry: reg, |
| 82 | } |
| 83 | |
| 84 | return coll |
| 85 | } |
| 86 | |
| 87 | func (coll *Collection) copy() *Collection { |
| 88 | return &Collection{ |
| 89 | client: coll.client, |
| 90 | db: coll.db, |
| 91 | name: coll.name, |
| 92 | readConcern: coll.readConcern, |
| 93 | writeConcern: coll.writeConcern, |
| 94 | readPreference: coll.readPreference, |
| 95 | readSelector: coll.readSelector, |
| 96 | writeSelector: coll.writeSelector, |
| 97 | registry: coll.registry, |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | // Clone creates a copy of this collection with updated options, if any are given. |
| 102 | func (coll *Collection) Clone(opts ...*options.CollectionOptions) (*Collection, error) { |
| 103 | copyColl := coll.copy() |
| 104 | optsColl := options.MergeCollectionOptions(opts...) |
| 105 | |
| 106 | if optsColl.ReadConcern != nil { |
| 107 | copyColl.readConcern = optsColl.ReadConcern |
| 108 | } |
| 109 | |
| 110 | if optsColl.WriteConcern != nil { |
| 111 | copyColl.writeConcern = optsColl.WriteConcern |
| 112 | } |
| 113 | |
| 114 | if optsColl.ReadPreference != nil { |
| 115 | copyColl.readPreference = optsColl.ReadPreference |
| 116 | } |
| 117 | |
| 118 | if optsColl.Registry != nil { |
| 119 | copyColl.registry = optsColl.Registry |
| 120 | } |
| 121 | |
| 122 | copyColl.readSelector = description.CompositeSelector([]description.ServerSelector{ |
| 123 | description.ReadPrefSelector(copyColl.readPreference), |
| 124 | description.LatencySelector(copyColl.client.localThreshold), |
| 125 | }) |
| 126 | |
| 127 | return copyColl, nil |
| 128 | } |
| 129 | |
| 130 | // Name provides access to the name of the collection. |
| 131 | func (coll *Collection) Name() string { |
| 132 | return coll.name |
| 133 | } |
| 134 | |
| 135 | // namespace returns the namespace of the collection. |
| 136 | func (coll *Collection) namespace() command.Namespace { |
| 137 | return command.NewNamespace(coll.db.name, coll.name) |
| 138 | } |
| 139 | |
| 140 | // Database provides access to the database that contains the collection. |
| 141 | func (coll *Collection) Database() *Database { |
| 142 | return coll.db |
| 143 | } |
| 144 | |
| 145 | // BulkWrite performs a bulk write operation. |
| 146 | // |
| 147 | // See https://docs.mongodb.com/manual/core/bulk-write-operations/. |
| 148 | func (coll *Collection) BulkWrite(ctx context.Context, models []WriteModel, |
| 149 | opts ...*options.BulkWriteOptions) (*BulkWriteResult, error) { |
| 150 | |
| 151 | if len(models) == 0 { |
| 152 | return nil, ErrEmptySlice |
| 153 | } |
| 154 | |
| 155 | if ctx == nil { |
| 156 | ctx = context.Background() |
| 157 | } |
| 158 | |
| 159 | sess := sessionFromContext(ctx) |
| 160 | |
| 161 | err := coll.client.ValidSession(sess) |
| 162 | if err != nil { |
| 163 | return nil, err |
| 164 | } |
| 165 | |
| 166 | dispatchModels := make([]driver.WriteModel, len(models)) |
| 167 | for i, model := range models { |
| 168 | if model == nil { |
| 169 | return nil, ErrNilDocument |
| 170 | } |
| 171 | dispatchModels[i] = model.convertModel() |
| 172 | } |
| 173 | |
| 174 | res, err := driver.BulkWrite( |
| 175 | ctx, |
| 176 | coll.namespace(), |
| 177 | dispatchModels, |
| 178 | coll.client.topology, |
| 179 | coll.writeSelector, |
| 180 | coll.client.id, |
| 181 | coll.client.topology.SessionPool, |
| 182 | coll.client.retryWrites, |
| 183 | sess, |
| 184 | coll.writeConcern, |
| 185 | coll.client.clock, |
| 186 | coll.registry, |
| 187 | opts..., |
| 188 | ) |
| 189 | |
| 190 | if err != nil { |
| 191 | if conv, ok := err.(driver.BulkWriteException); ok { |
| 192 | return &BulkWriteResult{}, BulkWriteException{ |
| 193 | WriteConcernError: convertWriteConcernError(conv.WriteConcernError), |
| 194 | WriteErrors: convertBulkWriteErrors(conv.WriteErrors), |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | return &BulkWriteResult{}, replaceTopologyErr(err) |
| 199 | } |
| 200 | |
| 201 | return &BulkWriteResult{ |
| 202 | InsertedCount: res.InsertedCount, |
| 203 | MatchedCount: res.MatchedCount, |
| 204 | ModifiedCount: res.ModifiedCount, |
| 205 | DeletedCount: res.DeletedCount, |
| 206 | UpsertedCount: res.UpsertedCount, |
| 207 | UpsertedIDs: res.UpsertedIDs, |
| 208 | }, nil |
| 209 | } |
| 210 | |
| 211 | // InsertOne inserts a single document into the collection. |
| 212 | func (coll *Collection) InsertOne(ctx context.Context, document interface{}, |
| 213 | opts ...*options.InsertOneOptions) (*InsertOneResult, error) { |
| 214 | |
| 215 | if ctx == nil { |
| 216 | ctx = context.Background() |
| 217 | } |
| 218 | |
| 219 | doc, insertedID, err := transformAndEnsureID(coll.registry, document) |
| 220 | if err != nil { |
| 221 | return nil, err |
| 222 | } |
| 223 | |
| 224 | sess := sessionFromContext(ctx) |
| 225 | |
| 226 | err = coll.client.ValidSession(sess) |
| 227 | if err != nil { |
| 228 | return nil, err |
| 229 | } |
| 230 | |
| 231 | wc := coll.writeConcern |
| 232 | if sess != nil && sess.TransactionRunning() { |
| 233 | wc = nil |
| 234 | } |
| 235 | oldns := coll.namespace() |
| 236 | cmd := command.Insert{ |
| 237 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 238 | Docs: []bsonx.Doc{doc}, |
| 239 | WriteConcern: wc, |
| 240 | Session: sess, |
| 241 | Clock: coll.client.clock, |
| 242 | } |
| 243 | |
| 244 | // convert to InsertManyOptions so these can be argued to dispatch.Insert |
| 245 | insertOpts := make([]*options.InsertManyOptions, len(opts)) |
| 246 | for i, opt := range opts { |
| 247 | insertOpts[i] = options.InsertMany() |
| 248 | insertOpts[i].BypassDocumentValidation = opt.BypassDocumentValidation |
| 249 | } |
| 250 | |
| 251 | res, err := driver.Insert( |
| 252 | ctx, cmd, |
| 253 | coll.client.topology, |
| 254 | coll.writeSelector, |
| 255 | coll.client.id, |
| 256 | coll.client.topology.SessionPool, |
| 257 | coll.client.retryWrites, |
| 258 | insertOpts..., |
| 259 | ) |
| 260 | |
| 261 | rr, err := processWriteError(res.WriteConcernError, res.WriteErrors, err) |
| 262 | if rr&rrOne == 0 { |
| 263 | return nil, err |
| 264 | } |
| 265 | |
| 266 | return &InsertOneResult{InsertedID: insertedID}, err |
| 267 | } |
| 268 | |
| 269 | // InsertMany inserts the provided documents. |
| 270 | func (coll *Collection) InsertMany(ctx context.Context, documents []interface{}, |
| 271 | opts ...*options.InsertManyOptions) (*InsertManyResult, error) { |
| 272 | |
| 273 | if ctx == nil { |
| 274 | ctx = context.Background() |
| 275 | } |
| 276 | |
| 277 | if len(documents) == 0 { |
| 278 | return nil, ErrEmptySlice |
| 279 | } |
| 280 | |
| 281 | result := make([]interface{}, len(documents)) |
| 282 | docs := make([]bsonx.Doc, len(documents)) |
| 283 | |
| 284 | for i, doc := range documents { |
| 285 | if doc == nil { |
| 286 | return nil, ErrNilDocument |
| 287 | } |
| 288 | bdoc, insertedID, err := transformAndEnsureID(coll.registry, doc) |
| 289 | if err != nil { |
| 290 | return nil, err |
| 291 | } |
| 292 | |
| 293 | docs[i] = bdoc |
| 294 | result[i] = insertedID |
| 295 | } |
| 296 | |
| 297 | sess := sessionFromContext(ctx) |
| 298 | |
| 299 | err := coll.client.ValidSession(sess) |
| 300 | if err != nil { |
| 301 | return nil, err |
| 302 | } |
| 303 | |
| 304 | wc := coll.writeConcern |
| 305 | if sess != nil && sess.TransactionRunning() { |
| 306 | wc = nil |
| 307 | } |
| 308 | |
| 309 | oldns := coll.namespace() |
| 310 | cmd := command.Insert{ |
| 311 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 312 | Docs: docs, |
| 313 | WriteConcern: wc, |
| 314 | Session: sess, |
| 315 | Clock: coll.client.clock, |
| 316 | } |
| 317 | |
| 318 | res, err := driver.Insert( |
| 319 | ctx, cmd, |
| 320 | coll.client.topology, |
| 321 | coll.writeSelector, |
| 322 | coll.client.id, |
| 323 | coll.client.topology.SessionPool, |
| 324 | coll.client.retryWrites, |
| 325 | opts..., |
| 326 | ) |
| 327 | |
| 328 | switch err { |
| 329 | case nil: |
| 330 | case command.ErrUnacknowledgedWrite: |
| 331 | return &InsertManyResult{InsertedIDs: result}, ErrUnacknowledgedWrite |
| 332 | default: |
| 333 | return nil, replaceTopologyErr(err) |
| 334 | } |
| 335 | if len(res.WriteErrors) > 0 || res.WriteConcernError != nil { |
| 336 | bwErrors := make([]BulkWriteError, 0, len(res.WriteErrors)) |
| 337 | for _, we := range res.WriteErrors { |
| 338 | bwErrors = append(bwErrors, BulkWriteError{ |
| 339 | WriteError{ |
| 340 | Index: we.Index, |
| 341 | Code: we.Code, |
| 342 | Message: we.ErrMsg, |
| 343 | }, |
| 344 | nil, |
| 345 | }) |
| 346 | } |
| 347 | |
| 348 | err = BulkWriteException{ |
| 349 | WriteErrors: bwErrors, |
| 350 | WriteConcernError: convertWriteConcernError(res.WriteConcernError), |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | return &InsertManyResult{InsertedIDs: result}, err |
| 355 | } |
| 356 | |
| 357 | // DeleteOne deletes a single document from the collection. |
| 358 | func (coll *Collection) DeleteOne(ctx context.Context, filter interface{}, |
| 359 | opts ...*options.DeleteOptions) (*DeleteResult, error) { |
| 360 | |
| 361 | if ctx == nil { |
| 362 | ctx = context.Background() |
| 363 | } |
| 364 | |
| 365 | f, err := transformDocument(coll.registry, filter) |
| 366 | if err != nil { |
| 367 | return nil, err |
| 368 | } |
| 369 | deleteDocs := []bsonx.Doc{ |
| 370 | { |
| 371 | {"q", bsonx.Document(f)}, |
| 372 | {"limit", bsonx.Int32(1)}, |
| 373 | }, |
| 374 | } |
| 375 | |
| 376 | sess := sessionFromContext(ctx) |
| 377 | |
| 378 | err = coll.client.ValidSession(sess) |
| 379 | if err != nil { |
| 380 | return nil, err |
| 381 | } |
| 382 | |
| 383 | wc := coll.writeConcern |
| 384 | if sess != nil && sess.TransactionRunning() { |
| 385 | wc = nil |
| 386 | } |
| 387 | |
| 388 | oldns := coll.namespace() |
| 389 | cmd := command.Delete{ |
| 390 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 391 | Deletes: deleteDocs, |
| 392 | WriteConcern: wc, |
| 393 | Session: sess, |
| 394 | Clock: coll.client.clock, |
| 395 | } |
| 396 | |
| 397 | res, err := driver.Delete( |
| 398 | ctx, cmd, |
| 399 | coll.client.topology, |
| 400 | coll.writeSelector, |
| 401 | coll.client.id, |
| 402 | coll.client.topology.SessionPool, |
| 403 | coll.client.retryWrites, |
| 404 | opts..., |
| 405 | ) |
| 406 | |
| 407 | rr, err := processWriteError(res.WriteConcernError, res.WriteErrors, err) |
| 408 | if rr&rrOne == 0 { |
| 409 | return nil, err |
| 410 | } |
| 411 | return &DeleteResult{DeletedCount: int64(res.N)}, err |
| 412 | } |
| 413 | |
| 414 | // DeleteMany deletes multiple documents from the collection. |
| 415 | func (coll *Collection) DeleteMany(ctx context.Context, filter interface{}, |
| 416 | opts ...*options.DeleteOptions) (*DeleteResult, error) { |
| 417 | |
| 418 | if ctx == nil { |
| 419 | ctx = context.Background() |
| 420 | } |
| 421 | |
| 422 | f, err := transformDocument(coll.registry, filter) |
| 423 | if err != nil { |
| 424 | return nil, err |
| 425 | } |
| 426 | deleteDocs := []bsonx.Doc{{{"q", bsonx.Document(f)}, {"limit", bsonx.Int32(0)}}} |
| 427 | |
| 428 | sess := sessionFromContext(ctx) |
| 429 | |
| 430 | err = coll.client.ValidSession(sess) |
| 431 | if err != nil { |
| 432 | return nil, err |
| 433 | } |
| 434 | |
| 435 | wc := coll.writeConcern |
| 436 | if sess != nil && sess.TransactionRunning() { |
| 437 | wc = nil |
| 438 | } |
| 439 | |
| 440 | oldns := coll.namespace() |
| 441 | cmd := command.Delete{ |
| 442 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 443 | Deletes: deleteDocs, |
| 444 | WriteConcern: wc, |
| 445 | Session: sess, |
| 446 | Clock: coll.client.clock, |
| 447 | } |
| 448 | |
| 449 | res, err := driver.Delete( |
| 450 | ctx, cmd, |
| 451 | coll.client.topology, |
| 452 | coll.writeSelector, |
| 453 | coll.client.id, |
| 454 | coll.client.topology.SessionPool, |
| 455 | false, |
| 456 | opts..., |
| 457 | ) |
| 458 | |
| 459 | rr, err := processWriteError(res.WriteConcernError, res.WriteErrors, err) |
| 460 | if rr&rrMany == 0 { |
| 461 | return nil, err |
| 462 | } |
| 463 | return &DeleteResult{DeletedCount: int64(res.N)}, err |
| 464 | } |
| 465 | |
| 466 | func (coll *Collection) updateOrReplaceOne(ctx context.Context, filter, |
| 467 | update bsonx.Doc, sess *session.Client, opts ...*options.UpdateOptions) (*UpdateResult, error) { |
| 468 | |
| 469 | // TODO: should session be taken from ctx or left as argument? |
| 470 | if ctx == nil { |
| 471 | ctx = context.Background() |
| 472 | } |
| 473 | |
| 474 | updateDocs := []bsonx.Doc{ |
| 475 | { |
| 476 | {"q", bsonx.Document(filter)}, |
| 477 | {"u", bsonx.Document(update)}, |
| 478 | {"multi", bsonx.Boolean(false)}, |
| 479 | }, |
| 480 | } |
| 481 | |
| 482 | wc := coll.writeConcern |
| 483 | if sess != nil && sess.TransactionRunning() { |
| 484 | wc = nil |
| 485 | } |
| 486 | |
| 487 | oldns := coll.namespace() |
| 488 | cmd := command.Update{ |
| 489 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 490 | Docs: updateDocs, |
| 491 | WriteConcern: wc, |
| 492 | Session: sess, |
| 493 | Clock: coll.client.clock, |
| 494 | } |
| 495 | |
| 496 | r, err := driver.Update( |
| 497 | ctx, cmd, |
| 498 | coll.client.topology, |
| 499 | coll.writeSelector, |
| 500 | coll.client.id, |
| 501 | coll.client.topology.SessionPool, |
| 502 | coll.client.retryWrites, |
| 503 | opts..., |
| 504 | ) |
| 505 | if err != nil && err != command.ErrUnacknowledgedWrite { |
| 506 | return nil, replaceTopologyErr(err) |
| 507 | } |
| 508 | |
| 509 | res := &UpdateResult{ |
| 510 | MatchedCount: r.MatchedCount, |
| 511 | ModifiedCount: r.ModifiedCount, |
| 512 | UpsertedCount: int64(len(r.Upserted)), |
| 513 | } |
| 514 | if len(r.Upserted) > 0 { |
| 515 | res.UpsertedID = r.Upserted[0].ID |
| 516 | res.MatchedCount-- |
| 517 | } |
| 518 | |
| 519 | rr, err := processWriteError(r.WriteConcernError, r.WriteErrors, err) |
| 520 | if rr&rrOne == 0 { |
| 521 | return nil, err |
| 522 | } |
| 523 | return res, err |
| 524 | } |
| 525 | |
| 526 | // UpdateOne updates a single document in the collection. |
| 527 | func (coll *Collection) UpdateOne(ctx context.Context, filter interface{}, update interface{}, |
| 528 | opts ...*options.UpdateOptions) (*UpdateResult, error) { |
| 529 | |
| 530 | if ctx == nil { |
| 531 | ctx = context.Background() |
| 532 | } |
| 533 | |
| 534 | f, err := transformDocument(coll.registry, filter) |
| 535 | if err != nil { |
| 536 | return nil, err |
| 537 | } |
| 538 | |
| 539 | u, err := transformDocument(coll.registry, update) |
| 540 | if err != nil { |
| 541 | return nil, err |
| 542 | } |
| 543 | |
| 544 | if err := ensureDollarKey(u); err != nil { |
| 545 | return nil, err |
| 546 | } |
| 547 | |
| 548 | sess := sessionFromContext(ctx) |
| 549 | |
| 550 | err = coll.client.ValidSession(sess) |
| 551 | if err != nil { |
| 552 | return nil, err |
| 553 | } |
| 554 | |
| 555 | return coll.updateOrReplaceOne(ctx, f, u, sess, opts...) |
| 556 | } |
| 557 | |
| 558 | // UpdateMany updates multiple documents in the collection. |
| 559 | func (coll *Collection) UpdateMany(ctx context.Context, filter interface{}, update interface{}, |
| 560 | opts ...*options.UpdateOptions) (*UpdateResult, error) { |
| 561 | |
| 562 | if ctx == nil { |
| 563 | ctx = context.Background() |
| 564 | } |
| 565 | |
| 566 | f, err := transformDocument(coll.registry, filter) |
| 567 | if err != nil { |
| 568 | return nil, err |
| 569 | } |
| 570 | |
| 571 | u, err := transformDocument(coll.registry, update) |
| 572 | if err != nil { |
| 573 | return nil, err |
| 574 | } |
| 575 | |
| 576 | if err = ensureDollarKey(u); err != nil { |
| 577 | return nil, err |
| 578 | } |
| 579 | |
| 580 | updateDocs := []bsonx.Doc{ |
| 581 | { |
| 582 | {"q", bsonx.Document(f)}, |
| 583 | {"u", bsonx.Document(u)}, |
| 584 | {"multi", bsonx.Boolean(true)}, |
| 585 | }, |
| 586 | } |
| 587 | |
| 588 | sess := sessionFromContext(ctx) |
| 589 | |
| 590 | err = coll.client.ValidSession(sess) |
| 591 | if err != nil { |
| 592 | return nil, err |
| 593 | } |
| 594 | |
| 595 | wc := coll.writeConcern |
| 596 | if sess != nil && sess.TransactionRunning() { |
| 597 | wc = nil |
| 598 | } |
| 599 | |
| 600 | oldns := coll.namespace() |
| 601 | cmd := command.Update{ |
| 602 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 603 | Docs: updateDocs, |
| 604 | WriteConcern: wc, |
| 605 | Session: sess, |
| 606 | Clock: coll.client.clock, |
| 607 | } |
| 608 | |
| 609 | r, err := driver.Update( |
| 610 | ctx, cmd, |
| 611 | coll.client.topology, |
| 612 | coll.writeSelector, |
| 613 | coll.client.id, |
| 614 | coll.client.topology.SessionPool, |
| 615 | false, |
| 616 | opts..., |
| 617 | ) |
| 618 | if err != nil && err != command.ErrUnacknowledgedWrite { |
| 619 | return nil, replaceTopologyErr(err) |
| 620 | } |
| 621 | res := &UpdateResult{ |
| 622 | MatchedCount: r.MatchedCount, |
| 623 | ModifiedCount: r.ModifiedCount, |
| 624 | UpsertedCount: int64(len(r.Upserted)), |
| 625 | } |
| 626 | // TODO(skriptble): Is this correct? Do we only return the first upserted ID for an UpdateMany? |
| 627 | if len(r.Upserted) > 0 { |
| 628 | res.UpsertedID = r.Upserted[0].ID |
| 629 | res.MatchedCount-- |
| 630 | } |
| 631 | |
| 632 | rr, err := processWriteError(r.WriteConcernError, r.WriteErrors, err) |
| 633 | if rr&rrMany == 0 { |
| 634 | return nil, err |
| 635 | } |
| 636 | return res, err |
| 637 | } |
| 638 | |
| 639 | // ReplaceOne replaces a single document in the collection. |
| 640 | func (coll *Collection) ReplaceOne(ctx context.Context, filter interface{}, |
| 641 | replacement interface{}, opts ...*options.ReplaceOptions) (*UpdateResult, error) { |
| 642 | |
| 643 | if ctx == nil { |
| 644 | ctx = context.Background() |
| 645 | } |
| 646 | |
| 647 | f, err := transformDocument(coll.registry, filter) |
| 648 | if err != nil { |
| 649 | return nil, err |
| 650 | } |
| 651 | |
| 652 | r, err := transformDocument(coll.registry, replacement) |
| 653 | if err != nil { |
| 654 | return nil, err |
| 655 | } |
| 656 | |
| 657 | if len(r) > 0 && strings.HasPrefix(r[0].Key, "$") { |
| 658 | return nil, errors.New("replacement document cannot contains keys beginning with '$") |
| 659 | } |
| 660 | |
| 661 | sess := sessionFromContext(ctx) |
| 662 | |
| 663 | err = coll.client.ValidSession(sess) |
| 664 | if err != nil { |
| 665 | return nil, err |
| 666 | } |
| 667 | |
| 668 | updateOptions := make([]*options.UpdateOptions, 0, len(opts)) |
| 669 | for _, opt := range opts { |
| 670 | uOpts := options.Update() |
| 671 | uOpts.BypassDocumentValidation = opt.BypassDocumentValidation |
| 672 | uOpts.Collation = opt.Collation |
| 673 | uOpts.Upsert = opt.Upsert |
| 674 | updateOptions = append(updateOptions, uOpts) |
| 675 | } |
| 676 | |
| 677 | return coll.updateOrReplaceOne(ctx, f, r, sess, updateOptions...) |
| 678 | } |
| 679 | |
| 680 | // Aggregate runs an aggregation framework pipeline. |
| 681 | // |
| 682 | // See https://docs.mongodb.com/manual/aggregation/. |
| 683 | func (coll *Collection) Aggregate(ctx context.Context, pipeline interface{}, |
| 684 | opts ...*options.AggregateOptions) (*Cursor, error) { |
| 685 | |
| 686 | if ctx == nil { |
| 687 | ctx = context.Background() |
| 688 | } |
| 689 | |
| 690 | pipelineArr, err := transformAggregatePipeline(coll.registry, pipeline) |
| 691 | if err != nil { |
| 692 | return nil, err |
| 693 | } |
| 694 | |
| 695 | aggOpts := options.MergeAggregateOptions(opts...) |
| 696 | |
| 697 | sess := sessionFromContext(ctx) |
| 698 | |
| 699 | err = coll.client.ValidSession(sess) |
| 700 | if err != nil { |
| 701 | return nil, err |
| 702 | } |
| 703 | |
| 704 | wc := coll.writeConcern |
| 705 | if sess != nil && sess.TransactionRunning() { |
| 706 | wc = nil |
| 707 | } |
| 708 | |
| 709 | rc := coll.readConcern |
| 710 | if sess != nil && (sess.TransactionInProgress()) { |
| 711 | rc = nil |
| 712 | } |
| 713 | |
| 714 | oldns := coll.namespace() |
| 715 | cmd := command.Aggregate{ |
| 716 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 717 | Pipeline: pipelineArr, |
| 718 | ReadPref: coll.readPreference, |
| 719 | WriteConcern: wc, |
| 720 | ReadConcern: rc, |
| 721 | Session: sess, |
| 722 | Clock: coll.client.clock, |
| 723 | } |
| 724 | |
| 725 | batchCursor, err := driver.Aggregate( |
| 726 | ctx, cmd, |
| 727 | coll.client.topology, |
| 728 | coll.readSelector, |
| 729 | coll.writeSelector, |
| 730 | coll.client.id, |
| 731 | coll.client.topology.SessionPool, |
| 732 | coll.registry, |
| 733 | aggOpts, |
| 734 | ) |
| 735 | if err != nil { |
| 736 | return nil, replaceTopologyErr(err) |
| 737 | } |
| 738 | |
| 739 | cursor, err := newCursor(batchCursor, coll.registry) |
| 740 | return cursor, replaceTopologyErr(err) |
| 741 | } |
| 742 | |
| 743 | // Count gets the number of documents matching the filter. |
| 744 | func (coll *Collection) Count(ctx context.Context, filter interface{}, |
| 745 | opts ...*options.CountOptions) (int64, error) { |
| 746 | |
| 747 | if ctx == nil { |
| 748 | ctx = context.Background() |
| 749 | } |
| 750 | |
| 751 | f, err := transformDocument(coll.registry, filter) |
| 752 | if err != nil { |
| 753 | return 0, err |
| 754 | } |
| 755 | |
| 756 | sess := sessionFromContext(ctx) |
| 757 | |
| 758 | err = coll.client.ValidSession(sess) |
| 759 | if err != nil { |
| 760 | return 0, err |
| 761 | } |
| 762 | |
| 763 | rc := coll.readConcern |
| 764 | if sess != nil && (sess.TransactionInProgress()) { |
| 765 | rc = nil |
| 766 | } |
| 767 | |
| 768 | oldns := coll.namespace() |
| 769 | cmd := command.Count{ |
| 770 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 771 | Query: f, |
| 772 | ReadPref: coll.readPreference, |
| 773 | ReadConcern: rc, |
| 774 | Session: sess, |
| 775 | Clock: coll.client.clock, |
| 776 | } |
| 777 | |
| 778 | count, err := driver.Count( |
| 779 | ctx, cmd, |
| 780 | coll.client.topology, |
| 781 | coll.readSelector, |
| 782 | coll.client.id, |
| 783 | coll.client.topology.SessionPool, |
| 784 | coll.registry, |
| 785 | opts..., |
| 786 | ) |
| 787 | |
| 788 | return count, replaceTopologyErr(err) |
| 789 | } |
| 790 | |
| 791 | // CountDocuments gets the number of documents matching the filter. |
| 792 | func (coll *Collection) CountDocuments(ctx context.Context, filter interface{}, |
| 793 | opts ...*options.CountOptions) (int64, error) { |
| 794 | |
| 795 | if ctx == nil { |
| 796 | ctx = context.Background() |
| 797 | } |
| 798 | |
| 799 | countOpts := options.MergeCountOptions(opts...) |
| 800 | |
| 801 | pipelineArr, err := countDocumentsAggregatePipeline(coll.registry, filter, countOpts) |
| 802 | if err != nil { |
| 803 | return 0, err |
| 804 | } |
| 805 | |
| 806 | sess := sessionFromContext(ctx) |
| 807 | |
| 808 | err = coll.client.ValidSession(sess) |
| 809 | if err != nil { |
| 810 | return 0, err |
| 811 | } |
| 812 | |
| 813 | rc := coll.readConcern |
| 814 | if sess != nil && (sess.TransactionInProgress()) { |
| 815 | rc = nil |
| 816 | } |
| 817 | |
| 818 | oldns := coll.namespace() |
| 819 | cmd := command.CountDocuments{ |
| 820 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 821 | Pipeline: pipelineArr, |
| 822 | ReadPref: coll.readPreference, |
| 823 | ReadConcern: rc, |
| 824 | Session: sess, |
| 825 | Clock: coll.client.clock, |
| 826 | } |
| 827 | |
| 828 | count, err := driver.CountDocuments( |
| 829 | ctx, cmd, |
| 830 | coll.client.topology, |
| 831 | coll.readSelector, |
| 832 | coll.client.id, |
| 833 | coll.client.topology.SessionPool, |
| 834 | coll.registry, |
| 835 | countOpts, |
| 836 | ) |
| 837 | |
| 838 | return count, replaceTopologyErr(err) |
| 839 | } |
| 840 | |
| 841 | // EstimatedDocumentCount gets an estimate of the count of documents in a collection using collection metadata. |
| 842 | func (coll *Collection) EstimatedDocumentCount(ctx context.Context, |
| 843 | opts ...*options.EstimatedDocumentCountOptions) (int64, error) { |
| 844 | |
| 845 | if ctx == nil { |
| 846 | ctx = context.Background() |
| 847 | } |
| 848 | |
| 849 | sess := sessionFromContext(ctx) |
| 850 | |
| 851 | err := coll.client.ValidSession(sess) |
| 852 | if err != nil { |
| 853 | return 0, err |
| 854 | } |
| 855 | |
| 856 | rc := coll.readConcern |
| 857 | if sess != nil && (sess.TransactionInProgress()) { |
| 858 | rc = nil |
| 859 | } |
| 860 | |
| 861 | oldns := coll.namespace() |
| 862 | cmd := command.Count{ |
| 863 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 864 | Query: bsonx.Doc{}, |
| 865 | ReadPref: coll.readPreference, |
| 866 | ReadConcern: rc, |
| 867 | Session: sess, |
| 868 | Clock: coll.client.clock, |
| 869 | } |
| 870 | |
| 871 | countOpts := options.Count() |
| 872 | if len(opts) >= 1 { |
| 873 | countOpts = countOpts.SetMaxTime(*opts[len(opts)-1].MaxTime) |
| 874 | } |
| 875 | |
| 876 | count, err := driver.Count( |
| 877 | ctx, cmd, |
| 878 | coll.client.topology, |
| 879 | coll.readSelector, |
| 880 | coll.client.id, |
| 881 | coll.client.topology.SessionPool, |
| 882 | coll.registry, |
| 883 | countOpts, |
| 884 | ) |
| 885 | |
| 886 | return count, replaceTopologyErr(err) |
| 887 | } |
| 888 | |
| 889 | // Distinct finds the distinct values for a specified field across a single |
| 890 | // collection. |
| 891 | func (coll *Collection) Distinct(ctx context.Context, fieldName string, filter interface{}, |
| 892 | opts ...*options.DistinctOptions) ([]interface{}, error) { |
| 893 | |
| 894 | if ctx == nil { |
| 895 | ctx = context.Background() |
| 896 | } |
| 897 | |
| 898 | f, err := transformDocument(coll.registry, filter) |
| 899 | if err != nil { |
| 900 | return nil, err |
| 901 | } |
| 902 | |
| 903 | sess := sessionFromContext(ctx) |
| 904 | |
| 905 | err = coll.client.ValidSession(sess) |
| 906 | if err != nil { |
| 907 | return nil, err |
| 908 | } |
| 909 | |
| 910 | rc := coll.readConcern |
| 911 | if sess != nil && (sess.TransactionInProgress()) { |
| 912 | rc = nil |
| 913 | } |
| 914 | |
| 915 | oldns := coll.namespace() |
| 916 | cmd := command.Distinct{ |
| 917 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 918 | Field: fieldName, |
| 919 | Query: f, |
| 920 | ReadPref: coll.readPreference, |
| 921 | ReadConcern: rc, |
| 922 | Session: sess, |
| 923 | Clock: coll.client.clock, |
| 924 | } |
| 925 | |
| 926 | res, err := driver.Distinct( |
| 927 | ctx, cmd, |
| 928 | coll.client.topology, |
| 929 | coll.readSelector, |
| 930 | coll.client.id, |
| 931 | coll.client.topology.SessionPool, |
| 932 | opts..., |
| 933 | ) |
| 934 | if err != nil { |
| 935 | return nil, replaceTopologyErr(err) |
| 936 | } |
| 937 | |
| 938 | return res.Values, nil |
| 939 | } |
| 940 | |
| 941 | // Find finds the documents matching a model. |
| 942 | func (coll *Collection) Find(ctx context.Context, filter interface{}, |
| 943 | opts ...*options.FindOptions) (*Cursor, error) { |
| 944 | |
| 945 | if ctx == nil { |
| 946 | ctx = context.Background() |
| 947 | } |
| 948 | |
| 949 | f, err := transformDocument(coll.registry, filter) |
| 950 | if err != nil { |
| 951 | return nil, err |
| 952 | } |
| 953 | |
| 954 | sess := sessionFromContext(ctx) |
| 955 | |
| 956 | err = coll.client.ValidSession(sess) |
| 957 | if err != nil { |
| 958 | return nil, err |
| 959 | } |
| 960 | |
| 961 | rc := coll.readConcern |
| 962 | if sess != nil && (sess.TransactionInProgress()) { |
| 963 | rc = nil |
| 964 | } |
| 965 | |
| 966 | oldns := coll.namespace() |
| 967 | cmd := command.Find{ |
| 968 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 969 | Filter: f, |
| 970 | ReadPref: coll.readPreference, |
| 971 | ReadConcern: rc, |
| 972 | Session: sess, |
| 973 | Clock: coll.client.clock, |
| 974 | } |
| 975 | |
| 976 | batchCursor, err := driver.Find( |
| 977 | ctx, cmd, |
| 978 | coll.client.topology, |
| 979 | coll.readSelector, |
| 980 | coll.client.id, |
| 981 | coll.client.topology.SessionPool, |
| 982 | coll.registry, |
| 983 | opts..., |
| 984 | ) |
| 985 | if err != nil { |
| 986 | return nil, replaceTopologyErr(err) |
| 987 | } |
| 988 | |
| 989 | cursor, err := newCursor(batchCursor, coll.registry) |
| 990 | return cursor, replaceTopologyErr(err) |
| 991 | } |
| 992 | |
| 993 | // FindOne returns up to one document that matches the model. |
| 994 | func (coll *Collection) FindOne(ctx context.Context, filter interface{}, |
| 995 | opts ...*options.FindOneOptions) *SingleResult { |
| 996 | |
| 997 | if ctx == nil { |
| 998 | ctx = context.Background() |
| 999 | } |
| 1000 | |
| 1001 | f, err := transformDocument(coll.registry, filter) |
| 1002 | if err != nil { |
| 1003 | return &SingleResult{err: err} |
| 1004 | } |
| 1005 | |
| 1006 | sess := sessionFromContext(ctx) |
| 1007 | |
| 1008 | err = coll.client.ValidSession(sess) |
| 1009 | if err != nil { |
| 1010 | return &SingleResult{err: err} |
| 1011 | } |
| 1012 | |
| 1013 | rc := coll.readConcern |
| 1014 | if sess != nil && (sess.TransactionInProgress()) { |
| 1015 | rc = nil |
| 1016 | } |
| 1017 | |
| 1018 | oldns := coll.namespace() |
| 1019 | cmd := command.Find{ |
| 1020 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 1021 | Filter: f, |
| 1022 | ReadPref: coll.readPreference, |
| 1023 | ReadConcern: rc, |
| 1024 | Session: sess, |
| 1025 | Clock: coll.client.clock, |
| 1026 | } |
| 1027 | |
| 1028 | findOpts := make([]*options.FindOptions, len(opts)) |
| 1029 | for i, opt := range opts { |
| 1030 | findOpts[i] = &options.FindOptions{ |
| 1031 | AllowPartialResults: opt.AllowPartialResults, |
| 1032 | BatchSize: opt.BatchSize, |
| 1033 | Collation: opt.Collation, |
| 1034 | Comment: opt.Comment, |
| 1035 | CursorType: opt.CursorType, |
| 1036 | Hint: opt.Hint, |
| 1037 | Max: opt.Max, |
| 1038 | MaxAwaitTime: opt.MaxAwaitTime, |
| 1039 | Min: opt.Min, |
| 1040 | NoCursorTimeout: opt.NoCursorTimeout, |
| 1041 | OplogReplay: opt.OplogReplay, |
| 1042 | Projection: opt.Projection, |
| 1043 | ReturnKey: opt.ReturnKey, |
| 1044 | ShowRecordID: opt.ShowRecordID, |
| 1045 | Skip: opt.Skip, |
| 1046 | Snapshot: opt.Snapshot, |
| 1047 | Sort: opt.Sort, |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | batchCursor, err := driver.Find( |
| 1052 | ctx, cmd, |
| 1053 | coll.client.topology, |
| 1054 | coll.readSelector, |
| 1055 | coll.client.id, |
| 1056 | coll.client.topology.SessionPool, |
| 1057 | coll.registry, |
| 1058 | findOpts..., |
| 1059 | ) |
| 1060 | if err != nil { |
| 1061 | return &SingleResult{err: replaceTopologyErr(err)} |
| 1062 | } |
| 1063 | |
| 1064 | cursor, err := newCursor(batchCursor, coll.registry) |
| 1065 | return &SingleResult{cur: cursor, reg: coll.registry, err: replaceTopologyErr(err)} |
| 1066 | } |
| 1067 | |
| 1068 | // FindOneAndDelete find a single document and deletes it, returning the |
| 1069 | // original in result. |
| 1070 | func (coll *Collection) FindOneAndDelete(ctx context.Context, filter interface{}, |
| 1071 | opts ...*options.FindOneAndDeleteOptions) *SingleResult { |
| 1072 | |
| 1073 | if ctx == nil { |
| 1074 | ctx = context.Background() |
| 1075 | } |
| 1076 | |
| 1077 | f, err := transformDocument(coll.registry, filter) |
| 1078 | if err != nil { |
| 1079 | return &SingleResult{err: err} |
| 1080 | } |
| 1081 | |
| 1082 | sess := sessionFromContext(ctx) |
| 1083 | |
| 1084 | err = coll.client.ValidSession(sess) |
| 1085 | if err != nil { |
| 1086 | return &SingleResult{err: err} |
| 1087 | } |
| 1088 | |
| 1089 | oldns := coll.namespace() |
| 1090 | wc := coll.writeConcern |
| 1091 | if sess != nil && sess.TransactionRunning() { |
| 1092 | wc = nil |
| 1093 | } |
| 1094 | |
| 1095 | cmd := command.FindOneAndDelete{ |
| 1096 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 1097 | Query: f, |
| 1098 | WriteConcern: wc, |
| 1099 | Session: sess, |
| 1100 | Clock: coll.client.clock, |
| 1101 | } |
| 1102 | |
| 1103 | res, err := driver.FindOneAndDelete( |
| 1104 | ctx, cmd, |
| 1105 | coll.client.topology, |
| 1106 | coll.writeSelector, |
| 1107 | coll.client.id, |
| 1108 | coll.client.topology.SessionPool, |
| 1109 | coll.client.retryWrites, |
| 1110 | coll.registry, |
| 1111 | opts..., |
| 1112 | ) |
| 1113 | if err != nil { |
| 1114 | return &SingleResult{err: replaceTopologyErr(err)} |
| 1115 | } |
| 1116 | |
| 1117 | return &SingleResult{rdr: res.Value, reg: coll.registry} |
| 1118 | } |
| 1119 | |
| 1120 | // FindOneAndReplace finds a single document and replaces it, returning either |
| 1121 | // the original or the replaced document. |
| 1122 | func (coll *Collection) FindOneAndReplace(ctx context.Context, filter interface{}, |
| 1123 | replacement interface{}, opts ...*options.FindOneAndReplaceOptions) *SingleResult { |
| 1124 | |
| 1125 | if ctx == nil { |
| 1126 | ctx = context.Background() |
| 1127 | } |
| 1128 | |
| 1129 | f, err := transformDocument(coll.registry, filter) |
| 1130 | if err != nil { |
| 1131 | return &SingleResult{err: err} |
| 1132 | } |
| 1133 | |
| 1134 | r, err := transformDocument(coll.registry, replacement) |
| 1135 | if err != nil { |
| 1136 | return &SingleResult{err: err} |
| 1137 | } |
| 1138 | |
| 1139 | if len(r) > 0 && strings.HasPrefix(r[0].Key, "$") { |
| 1140 | return &SingleResult{err: errors.New("replacement document cannot contains keys beginning with '$")} |
| 1141 | } |
| 1142 | |
| 1143 | sess := sessionFromContext(ctx) |
| 1144 | |
| 1145 | err = coll.client.ValidSession(sess) |
| 1146 | if err != nil { |
| 1147 | return &SingleResult{err: err} |
| 1148 | } |
| 1149 | |
| 1150 | wc := coll.writeConcern |
| 1151 | if sess != nil && sess.TransactionRunning() { |
| 1152 | wc = nil |
| 1153 | } |
| 1154 | |
| 1155 | oldns := coll.namespace() |
| 1156 | cmd := command.FindOneAndReplace{ |
| 1157 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 1158 | Query: f, |
| 1159 | Replacement: r, |
| 1160 | WriteConcern: wc, |
| 1161 | Session: sess, |
| 1162 | Clock: coll.client.clock, |
| 1163 | } |
| 1164 | |
| 1165 | res, err := driver.FindOneAndReplace( |
| 1166 | ctx, cmd, |
| 1167 | coll.client.topology, |
| 1168 | coll.writeSelector, |
| 1169 | coll.client.id, |
| 1170 | coll.client.topology.SessionPool, |
| 1171 | coll.client.retryWrites, |
| 1172 | coll.registry, |
| 1173 | opts..., |
| 1174 | ) |
| 1175 | if err != nil { |
| 1176 | return &SingleResult{err: replaceTopologyErr(err)} |
| 1177 | } |
| 1178 | |
| 1179 | return &SingleResult{rdr: res.Value, reg: coll.registry} |
| 1180 | } |
| 1181 | |
| 1182 | // FindOneAndUpdate finds a single document and updates it, returning either |
| 1183 | // the original or the updated. |
| 1184 | func (coll *Collection) FindOneAndUpdate(ctx context.Context, filter interface{}, |
| 1185 | update interface{}, opts ...*options.FindOneAndUpdateOptions) *SingleResult { |
| 1186 | |
| 1187 | if ctx == nil { |
| 1188 | ctx = context.Background() |
| 1189 | } |
| 1190 | |
| 1191 | f, err := transformDocument(coll.registry, filter) |
| 1192 | if err != nil { |
| 1193 | return &SingleResult{err: err} |
| 1194 | } |
| 1195 | |
| 1196 | u, err := transformDocument(coll.registry, update) |
| 1197 | if err != nil { |
| 1198 | return &SingleResult{err: err} |
| 1199 | } |
| 1200 | |
| 1201 | err = ensureDollarKey(u) |
| 1202 | if err != nil { |
| 1203 | return &SingleResult{ |
| 1204 | err: err, |
| 1205 | } |
| 1206 | } |
| 1207 | |
| 1208 | sess := sessionFromContext(ctx) |
| 1209 | |
| 1210 | err = coll.client.ValidSession(sess) |
| 1211 | if err != nil { |
| 1212 | return &SingleResult{err: err} |
| 1213 | } |
| 1214 | |
| 1215 | wc := coll.writeConcern |
| 1216 | if sess != nil && sess.TransactionRunning() { |
| 1217 | wc = nil |
| 1218 | } |
| 1219 | |
| 1220 | oldns := coll.namespace() |
| 1221 | cmd := command.FindOneAndUpdate{ |
| 1222 | NS: command.Namespace{DB: oldns.DB, Collection: oldns.Collection}, |
| 1223 | Query: f, |
| 1224 | Update: u, |
| 1225 | WriteConcern: wc, |
| 1226 | Session: sess, |
| 1227 | Clock: coll.client.clock, |
| 1228 | } |
| 1229 | |
| 1230 | res, err := driver.FindOneAndUpdate( |
| 1231 | ctx, cmd, |
| 1232 | coll.client.topology, |
| 1233 | coll.writeSelector, |
| 1234 | coll.client.id, |
| 1235 | coll.client.topology.SessionPool, |
| 1236 | coll.client.retryWrites, |
| 1237 | coll.registry, |
| 1238 | opts..., |
| 1239 | ) |
| 1240 | if err != nil { |
| 1241 | return &SingleResult{err: replaceTopologyErr(err)} |
| 1242 | } |
| 1243 | |
| 1244 | return &SingleResult{rdr: res.Value, reg: coll.registry} |
| 1245 | } |
| 1246 | |
| 1247 | // Watch returns a change stream cursor used to receive notifications of changes to the collection. |
| 1248 | // |
| 1249 | // This method is preferred to running a raw aggregation with a $changeStream stage because it |
| 1250 | // supports resumability in the case of some errors. The collection must have read concern majority or no read concern |
| 1251 | // for a change stream to be created successfully. |
| 1252 | func (coll *Collection) Watch(ctx context.Context, pipeline interface{}, |
| 1253 | opts ...*options.ChangeStreamOptions) (*ChangeStream, error) { |
| 1254 | return newChangeStream(ctx, coll, pipeline, opts...) |
| 1255 | } |
| 1256 | |
| 1257 | // Indexes returns the index view for this collection. |
| 1258 | func (coll *Collection) Indexes() IndexView { |
| 1259 | return IndexView{coll: coll} |
| 1260 | } |
| 1261 | |
| 1262 | // Drop drops this collection from database. |
| 1263 | func (coll *Collection) Drop(ctx context.Context) error { |
| 1264 | if ctx == nil { |
| 1265 | ctx = context.Background() |
| 1266 | } |
| 1267 | |
| 1268 | sess := sessionFromContext(ctx) |
| 1269 | |
| 1270 | err := coll.client.ValidSession(sess) |
| 1271 | if err != nil { |
| 1272 | return err |
| 1273 | } |
| 1274 | |
| 1275 | wc := coll.writeConcern |
| 1276 | if sess != nil && sess.TransactionRunning() { |
| 1277 | wc = nil |
| 1278 | } |
| 1279 | |
| 1280 | cmd := command.DropCollection{ |
| 1281 | DB: coll.db.name, |
| 1282 | Collection: coll.name, |
| 1283 | WriteConcern: wc, |
| 1284 | Session: sess, |
| 1285 | Clock: coll.client.clock, |
| 1286 | } |
| 1287 | _, err = driver.DropCollection( |
| 1288 | ctx, cmd, |
| 1289 | coll.client.topology, |
| 1290 | coll.writeSelector, |
| 1291 | coll.client.id, |
| 1292 | coll.client.topology.SessionPool, |
| 1293 | ) |
| 1294 | if err != nil && !command.IsNotFound(err) { |
| 1295 | return replaceTopologyErr(err) |
| 1296 | } |
| 1297 | return nil |
| 1298 | } |