| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Collection.php 2963 2007-10-21 06:23:59Z Jonathan.Wage $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.com>. |
| 20 | */ |
| 21 | Doctrine::autoload('Doctrine_Access'); |
| 22 | /** |
| 23 | * Doctrine_Collection |
| 24 | * Collection of Doctrine_Record objects. |
| 25 | * |
| 26 | * @package Doctrine |
| 27 | * @subpackage Collection |
| 28 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 29 | * @link www.phpdoctrine.com |
| 30 | * @since 1.0 |
| 31 | * @version $Revision: 2963 $ |
| 32 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 33 | */ |
| 34 | class Doctrine_Collection extends Doctrine_Access implements Countable, IteratorAggregate, Serializable |
| 35 | { |
| 36 | /** |
| 37 | * @var array $data an array containing the records of this collection |
| 38 | */ |
| 39 | protected $data = array(); |
| 40 | |
| 41 | /** |
| 42 | * @var Doctrine_Table $table each collection has only records of specified table |
| 43 | */ |
| 44 | protected $_table; |
| 45 | |
| 46 | /** |
| 47 | * @var array $_snapshot a snapshot of the fetched data |
| 48 | */ |
| 49 | protected $_snapshot = array(); |
| 50 | |
| 51 | /** |
| 52 | * @var Doctrine_Record $reference collection can belong to a record |
| 53 | */ |
| 54 | protected $reference; |
| 55 | |
| 56 | /** |
| 57 | * @var string $referenceField the reference field of the collection |
| 58 | */ |
| 59 | protected $referenceField; |
| 60 | |
| 61 | /** |
| 62 | * @var Doctrine_Relation the record this collection is related to, if any |
| 63 | */ |
| 64 | protected $relation; |
| 65 | |
| 66 | /** |
| 67 | * @var string $keyColumn the name of the column that is used for collection key mapping |
| 68 | */ |
| 69 | protected $keyColumn; |
| 70 | |
| 71 | /** |
| 72 | * @var Doctrine_Null $null used for extremely fast null value testing |
| 73 | */ |
| 74 | protected static $null; |
| 75 | |
| 76 | |
| 77 | /** |
| 78 | * constructor |
| 79 | * |
| 80 | * @param Doctrine_Table|string $table |
| 81 | */ |
| 82 | public function __construct($table, $keyColumn = null) |
| 83 | { |
| 84 | if ( ! ($table instanceof Doctrine_Table)) { |
| 85 | $table = Doctrine_Manager::getInstance() |
| 86 | ->getTable($table); |
| 87 | } |
| 88 | $this->_table = $table; |
| 89 | |
| 90 | if ($keyColumn === null) { |
| 91 | $keyColumn = $table->getBoundQueryPart('indexBy'); |
| 92 | } |
| 93 | |
| 94 | if ($keyColumn !== null) { |
| 95 | $this->keyColumn = $keyColumn; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * initNullObject |
| 101 | * initializes the null object for this collection |
| 102 | * |
| 103 | * @return void |
| 104 | */ |
| 105 | public static function initNullObject(Doctrine_Null $null) |
| 106 | { |
| 107 | self::$null = $null; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * getTable |
| 112 | * returns the table this collection belongs to |
| 113 | * |
| 114 | * @return Doctrine_Table |
| 115 | */ |
| 116 | public function getTable() |
| 117 | { |
| 118 | return $this->_table; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * setData |
| 123 | * |
| 124 | * @param array $data |
| 125 | * @return Doctrine_Collection |
| 126 | */ |
| 127 | public function setData(array $data) |
| 128 | { |
| 129 | $this->data = $data; |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * this method is automatically called when this Doctrine_Collection is serialized |
| 134 | * |
| 135 | * @return array |
| 136 | */ |
| 137 | public function serialize() |
| 138 | { |
| 139 | $vars = get_object_vars($this); |
| 140 | |
| 141 | unset($vars['reference']); |
| 142 | unset($vars['reference_field']); |
| 143 | unset($vars['relation']); |
| 144 | unset($vars['expandable']); |
| 145 | unset($vars['expanded']); |
| 146 | unset($vars['generator']); |
| 147 | |
| 148 | $vars['_table'] = $vars['_table']->getComponentName(); |
| 149 | |
| 150 | return serialize($vars); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * unseralize |
| 155 | * this method is automatically called everytime a Doctrine_Collection object is unserialized |
| 156 | * |
| 157 | * @return void |
| 158 | */ |
| 159 | public function unserialize($serialized) |
| 160 | { |
| 161 | $manager = Doctrine_Manager::getInstance(); |
| 162 | $connection = $manager->getCurrentConnection(); |
| 163 | |
| 164 | $array = unserialize($serialized); |
| 165 | |
| 166 | foreach ($array as $name => $values) { |
| 167 | $this->$name = $values; |
| 168 | } |
| 169 | |
| 170 | $this->_table = $connection->getTable($this->_table); |
| 171 | |
| 172 | if ($keyColumn === null) { |
| 173 | $keyColumn = $this->_table->getBoundQueryPart('indexBy'); |
| 174 | } |
| 175 | |
| 176 | if ($keyColumn !== null) { |
| 177 | $this->keyColumn = $keyColumn; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * setKeyColumn |
| 183 | * sets the key column for this collection |
| 184 | * |
| 185 | * @param string $column |
| 186 | * @return Doctrine_Collection |
| 187 | */ |
| 188 | public function setKeyColumn($column) |
| 189 | { |
| 190 | $this->keyColumn = $column; |
| 191 | |
| 192 | return $this; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * getKeyColumn |
| 197 | * returns the name of the key column |
| 198 | * |
| 199 | * @return string |
| 200 | */ |
| 201 | public function getKeyColumn() |
| 202 | { |
| 203 | return $this->column; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * getData |
| 208 | * returns all the records as an array |
| 209 | * |
| 210 | * @return array |
| 211 | */ |
| 212 | public function getData() |
| 213 | { |
| 214 | return $this->data; |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * getFirst |
| 219 | * returns the first record in the collection |
| 220 | * |
| 221 | * @return mixed |
| 222 | */ |
| 223 | public function getFirst() |
| 224 | { |
| 225 | return reset($this->data); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * getLast |
| 230 | * returns the last record in the collection |
| 231 | * |
| 232 | * @return mixed |
| 233 | */ |
| 234 | public function getLast() |
| 235 | { |
| 236 | return end($this->data); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * setReference |
| 241 | * sets a reference pointer |
| 242 | * |
| 243 | * @return void |
| 244 | */ |
| 245 | public function setReference(Doctrine_Record $record, Doctrine_Relation $relation) |
| 246 | { |
| 247 | $this->reference = $record; |
| 248 | $this->relation = $relation; |
| 249 | |
| 250 | if ($relation instanceof Doctrine_Relation_ForeignKey || |
| 251 | $relation instanceof Doctrine_Relation_LocalKey) { |
| 252 | |
| 253 | $this->referenceField = $relation->getForeign(); |
| 254 | |
| 255 | $value = $record->get($relation->getLocal()); |
| 256 | |
| 257 | foreach ($this->data as $record) { |
| 258 | if ($value !== null) { |
| 259 | $record->set($this->referenceField, $value, false); |
| 260 | } else { |
| 261 | $record->set($this->referenceField, $this->reference, false); |
| 262 | } |
| 263 | } |
| 264 | } elseif ($relation instanceof Doctrine_Relation_Association) { |
| 265 | |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * getReference |
| 271 | * |
| 272 | * @return mixed |
| 273 | */ |
| 274 | public function getReference() |
| 275 | { |
| 276 | return $this->reference; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * remove |
| 281 | * removes a specified collection element |
| 282 | * |
| 283 | * @param mixed $key |
| 284 | * @return boolean |
| 285 | */ |
| 286 | public function remove($key) |
| 287 | { |
| 288 | $removed = $this->data[$key]; |
| 289 | |
| 290 | unset($this->data[$key]); |
| 291 | return $removed; |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * contains |
| 296 | * whether or not this collection contains a specified element |
| 297 | * |
| 298 | * @param mixed $key the key of the element |
| 299 | * @return boolean |
| 300 | */ |
| 301 | public function contains($key) |
| 302 | { |
| 303 | return isset($this->data[$key]); |
| 304 | } |
| 305 | public function search(Doctrine_Record $record) |
| 306 | { |
| 307 | return array_search($record, $this->data, true); |
| 308 | } |
| 309 | |
| 310 | /** |
| 311 | * get |
| 312 | * returns a record for given key |
| 313 | * |
| 314 | * There are two special cases: |
| 315 | * |
| 316 | * 1. if null is given as a key a new record is created and attached |
| 317 | * at the end of the collection |
| 318 | * |
| 319 | * 2. if given key does not exist, then a new record is create and attached |
| 320 | * to the given key |
| 321 | * |
| 322 | * Collection also maps referential information to newly created records |
| 323 | * |
| 324 | * @param mixed $key the key of the element |
| 325 | * @return Doctrine_Record return a specified record |
| 326 | */ |
| 327 | public function get($key) |
| 328 | { |
| 329 | if ( ! isset($this->data[$key])) { |
| 330 | $record = $this->_table->create(); |
| 331 | |
| 332 | if (isset($this->referenceField)) { |
| 333 | $value = $this->reference->get($this->relation->getLocal()); |
| 334 | |
| 335 | if ($value !== null) { |
| 336 | $record->set($this->referenceField, $value, false); |
| 337 | } else { |
| 338 | $record->set($this->referenceField, $this->reference, false); |
| 339 | } |
| 340 | } |
| 341 | if ($key === null) { |
| 342 | $this->data[] = $record; |
| 343 | } else { |
| 344 | $this->data[$key] = $record; |
| 345 | } |
| 346 | |
| 347 | if (isset($this->keyColumn)) { |
| 348 | |
| 349 | $record->set($this->keyColumn, $key); |
| 350 | } |
| 351 | |
| 352 | return $record; |
| 353 | } |
| 354 | |
| 355 | return $this->data[$key]; |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * @return array an array containing all primary keys |
| 360 | */ |
| 361 | public function getPrimaryKeys() |
| 362 | { |
| 363 | $list = array(); |
| 364 | $name = $this->_table->getIdentifier(); |
| 365 | |
| 366 | foreach ($this->data as $record) { |
| 367 | if (is_array($record) && isset($record[$name])) { |
| 368 | $list[] = $record[$name]; |
| 369 | } else { |
| 370 | $list[] = $record->getIncremented(); |
| 371 | } |
| 372 | } |
| 373 | return $list; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * returns all keys |
| 378 | * @return array |
| 379 | */ |
| 380 | public function getKeys() |
| 381 | { |
| 382 | return array_keys($this->data); |
| 383 | } |
| 384 | |
| 385 | /** |
| 386 | * count |
| 387 | * this class implements interface countable |
| 388 | * returns the number of records in this collection |
| 389 | * |
| 390 | * @return integer |
| 391 | */ |
| 392 | public function count() |
| 393 | { |
| 394 | return count($this->data); |
| 395 | } |
| 396 | |
| 397 | /** |
| 398 | * set |
| 399 | * @param integer $key |
| 400 | * @param Doctrine_Record $record |
| 401 | * @return void |
| 402 | */ |
| 403 | public function set($key, Doctrine_Record $record) |
| 404 | { |
| 405 | if (isset($this->referenceField)) { |
| 406 | $record->set($this->referenceField, $this->reference, false); |
| 407 | } |
| 408 | |
| 409 | $this->data[$key] = $record; |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * adds a record to collection |
| 414 | * @param Doctrine_Record $record record to be added |
| 415 | * @param string $key optional key for the record |
| 416 | * @return boolean |
| 417 | */ |
| 418 | public function add(Doctrine_Record $record, $key = null) |
| 419 | { |
| 420 | if (isset($this->referenceField)) { |
| 421 | $value = $this->reference->get($this->relation->getLocal()); |
| 422 | |
| 423 | if ($value !== null) { |
| 424 | $record->set($this->referenceField, $value, false); |
| 425 | } else { |
| 426 | $record->set($this->referenceField, $this->reference, false); |
| 427 | } |
| 428 | } |
| 429 | /** |
| 430 | * for some weird reason in_array cannot be used here (php bug ?) |
| 431 | * |
| 432 | * if used it results in fatal error : [ nesting level too deep ] |
| 433 | */ |
| 434 | foreach ($this->data as $val) { |
| 435 | if ($val === $record) { |
| 436 | return false; |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | if (isset($key)) { |
| 441 | if (isset($this->data[$key])) { |
| 442 | return false; |
| 443 | } |
| 444 | $this->data[$key] = $record; |
| 445 | return true; |
| 446 | } |
| 447 | |
| 448 | if (isset($this->keyColumn)) { |
| 449 | $value = $record->get($this->keyColumn); |
| 450 | if ($value === null) { |
| 451 | throw new Doctrine_Collection_Exception("Couldn't create collection index. Record field '".$this->keyColumn."' was null."); |
| 452 | } |
| 453 | $this->data[$value] = $record; |
| 454 | } else { |
| 455 | $this->data[] = $record; |
| 456 | } |
| 457 | return true; |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * loadRelated |
| 462 | * |
| 463 | * @param mixed $name |
| 464 | * @return boolean |
| 465 | */ |
| 466 | public function loadRelated($name = null) |
| 467 | { |
| 468 | $list = array(); |
| 469 | $query = new Doctrine_Query($this->_table->getConnection()); |
| 470 | |
| 471 | if ( ! isset($name)) { |
| 472 | foreach ($this->data as $record) { |
| 473 | $value = $record->getIncremented(); |
| 474 | if ($value !== null) { |
| 475 | $list[] = $value; |
| 476 | } |
| 477 | } |
| 478 | $query->from($this->_table->getComponentName() . '(' . implode(", ",$this->_table->getPrimaryKeys()) . ')'); |
| 479 | $query->where($this->_table->getComponentName() . '.id IN (' . substr(str_repeat("?, ", count($list)),0,-2) . ')'); |
| 480 | |
| 481 | return $query; |
| 482 | } |
| 483 | |
| 484 | $rel = $this->_table->getRelation($name); |
| 485 | |
| 486 | if ($rel instanceof Doctrine_Relation_LocalKey || $rel instanceof Doctrine_Relation_ForeignKey) { |
| 487 | foreach ($this->data as $record) { |
| 488 | $list[] = $record[$rel->getLocal()]; |
| 489 | } |
| 490 | } else { |
| 491 | foreach ($this->data as $record) { |
| 492 | $value = $record->getIncremented(); |
| 493 | if ($value !== null) { |
| 494 | $list[] = $value; |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | $dql = $rel->getRelationDql(count($list), 'collection'); |
| 500 | |
| 501 | $coll = $query->query($dql, $list); |
| 502 | |
| 503 | $this->populateRelated($name, $coll); |
| 504 | } |
| 505 | |
| 506 | /** |
| 507 | * populateRelated |
| 508 | * |
| 509 | * @param string $name |
| 510 | * @param Doctrine_Collection $coll |
| 511 | * @return void |
| 512 | */ |
| 513 | public function populateRelated($name, Doctrine_Collection $coll) |
| 514 | { |
| 515 | $rel = $this->_table->getRelation($name); |
| 516 | $table = $rel->getTable(); |
| 517 | $foreign = $rel->getForeign(); |
| 518 | $local = $rel->getLocal(); |
| 519 | |
| 520 | if ($rel instanceof Doctrine_Relation_LocalKey) { |
| 521 | foreach ($this->data as $key => $record) { |
| 522 | foreach ($coll as $k => $related) { |
| 523 | if ($related[$foreign] == $record[$local]) { |
| 524 | $this->data[$key]->setRelated($name, $related); |
| 525 | } |
| 526 | } |
| 527 | } |
| 528 | } elseif ($rel instanceof Doctrine_Relation_ForeignKey) { |
| 529 | foreach ($this->data as $key => $record) { |
| 530 | if ( ! $record->exists()) { |
| 531 | continue; |
| 532 | } |
| 533 | $sub = new Doctrine_Collection($table); |
| 534 | |
| 535 | foreach ($coll as $k => $related) { |
| 536 | if ($related[$foreign] == $record[$local]) { |
| 537 | $sub->add($related); |
| 538 | $coll->remove($k); |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | $this->data[$key]->setRelated($name, $sub); |
| 543 | } |
| 544 | } elseif ($rel instanceof Doctrine_Relation_Association) { |
| 545 | $identifier = $this->_table->getIdentifier(); |
| 546 | $asf = $rel->getAssociationFactory(); |
| 547 | $name = $table->getComponentName(); |
| 548 | |
| 549 | foreach ($this->data as $key => $record) { |
| 550 | if ( ! $record->exists()) { |
| 551 | continue; |
| 552 | } |
| 553 | $sub = new Doctrine_Collection($table); |
| 554 | foreach ($coll as $k => $related) { |
| 555 | if ($related->get($local) == $record[$identifier]) { |
| 556 | $sub->add($related->get($name)); |
| 557 | } |
| 558 | } |
| 559 | $this->data[$key]->setRelated($name, $sub); |
| 560 | |
| 561 | } |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | /** |
| 566 | * getNormalIterator |
| 567 | * returns normal iterator - an iterator that will not expand this collection |
| 568 | * |
| 569 | * @return Doctrine_Iterator_Normal |
| 570 | */ |
| 571 | public function getNormalIterator() |
| 572 | { |
| 573 | return new Doctrine_Collection_Iterator_Normal($this); |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * takeSnapshot |
| 578 | * takes a snapshot from this collection |
| 579 | * |
| 580 | * snapshots are used for diff processing, for example |
| 581 | * when a fetched collection has three elements, then two of those |
| 582 | * are being removed the diff would contain one element |
| 583 | * |
| 584 | * Doctrine_Collection::save() attaches the diff with the help of last |
| 585 | * snapshot. |
| 586 | * |
| 587 | * @return Doctrine_Collection |
| 588 | */ |
| 589 | public function takeSnapshot() |
| 590 | { |
| 591 | $this->_snapshot = $this->data; |
| 592 | |
| 593 | return $this; |
| 594 | } |
| 595 | |
| 596 | /** |
| 597 | * getSnapshot |
| 598 | * returns the data of the last snapshot |
| 599 | * |
| 600 | * @return array returns the data in last snapshot |
| 601 | */ |
| 602 | public function getSnapshot() |
| 603 | { |
| 604 | return $this->_snapshot; |
| 605 | } |
| 606 | |
| 607 | /** |
| 608 | * processDiff |
| 609 | * processes the difference of the last snapshot and the current data |
| 610 | * |
| 611 | * an example: |
| 612 | * Snapshot with the objects 1, 2 and 4 |
| 613 | * Current data with objects 2, 3 and 5 |
| 614 | * |
| 615 | * The process would remove object 4 |
| 616 | * |
| 617 | * @return Doctrine_Collection |
| 618 | */ |
| 619 | public function processDiff() |
| 620 | { |
| 621 | foreach (array_udiff($this->_snapshot, $this->data, array($this, "compareRecords")) as $record) { |
| 622 | $record->delete(); |
| 623 | } |
| 624 | |
| 625 | return $this; |
| 626 | } |
| 627 | |
| 628 | /** |
| 629 | * toArray |
| 630 | * Mimics the result of a $query->execute(array(), Doctrine::FETCH_ARRAY); |
| 631 | * |
| 632 | * @param boolean $deep |
| 633 | */ |
| 634 | public function toArray($deep = false, $prefixKey = false) |
| 635 | { |
| 636 | $data = array(); |
| 637 | foreach ($this->data as $key => $record) { |
| 638 | |
| 639 | $key = $prefixKey ? get_class($record) . '_' .$key:$key; |
| 640 | |
| 641 | $data[$key] = $record->toArray($deep, $prefixKey); |
| 642 | } |
| 643 | |
| 644 | return $data; |
| 645 | } |
| 646 | public function fromArray($array) |
| 647 | { |
| 648 | $data = array(); |
| 649 | foreach ($array as $row) { |
| 650 | $record = $this->_table->getRecord(); |
| 651 | $record->fromArray($row); |
| 652 | |
| 653 | $data[] = $record; |
| 654 | } |
| 655 | |
| 656 | $this->data = $data; |
| 657 | } |
| 658 | public function exportTo($type, $deep = false) |
| 659 | { |
| 660 | if ($type == 'array') { |
| 661 | return $this->toArray($deep); |
| 662 | } else { |
| 663 | return Doctrine_Parser::dump($this->toArray($deep, true), $type); |
| 664 | } |
| 665 | } |
| 666 | public function importFrom($type, $data) |
| 667 | { |
| 668 | if ($type == 'array') { |
| 669 | return $this->fromArray($data); |
| 670 | } else { |
| 671 | return $this->fromArray(Doctrine_Parser::load($data, $type)); |
| 672 | } |
| 673 | } |
| 674 | public function getDeleteDiff() |
| 675 | { |
| 676 | return array_udiff($this->_snapshot, $this->data, array($this, "compareRecords")); |
| 677 | } |
| 678 | public function getInsertDiff() |
| 679 | { |
| 680 | return array_udiff($this->data, $this->_snapshot, array($this, "compareRecords")); |
| 681 | } |
| 682 | |
| 683 | /** |
| 684 | * compareRecords |
| 685 | * Compares two records. To be used on _snapshot diffs using array_udiff |
| 686 | */ |
| 687 | protected function compareRecords($a, $b) |
| 688 | { |
| 689 | if ($a->getOid() == $b->getOid()) return 0; |
| 690 | return ($a->getOid() > $b->getOid()) ? 1 : -1; |
| 691 | } |
| 692 | |
| 693 | /** |
| 694 | * save |
| 695 | * saves all records of this collection and processes the |
| 696 | * difference of the last snapshot and the current data |
| 697 | * |
| 698 | * @param Doctrine_Connection $conn optional connection parameter |
| 699 | * @return Doctrine_Collection |
| 700 | */ |
| 701 | public function save(Doctrine_Connection $conn = null) |
| 702 | { |
| 703 | if ($conn == null) { |
| 704 | $conn = $this->_table->getConnection(); |
| 705 | } |
| 706 | $conn->beginTransaction(); |
| 707 | |
| 708 | $conn->transaction->addCollection($this); |
| 709 | |
| 710 | $this->processDiff(); |
| 711 | |
| 712 | foreach ($this->getData() as $key => $record) { |
| 713 | $record->save($conn); |
| 714 | } |
| 715 | |
| 716 | $conn->commit(); |
| 717 | |
| 718 | return $this; |
| 719 | } |
| 720 | |
| 721 | /** |
| 722 | * delete |
| 723 | * single shot delete |
| 724 | * deletes all records from this collection |
| 725 | * and uses only one database query to perform this operation |
| 726 | * |
| 727 | * @return Doctrine_Collection |
| 728 | */ |
| 729 | public function delete(Doctrine_Connection $conn = null) |
| 730 | { |
| 731 | if ($conn == null) { |
| 732 | $conn = $this->_table->getConnection(); |
| 733 | } |
| 734 | |
| 735 | $conn->beginTransaction(); |
| 736 | $conn->transaction->addCollection($this); |
| 737 | |
| 738 | foreach ($this as $key => $record) { |
| 739 | $record->delete($conn); |
| 740 | } |
| 741 | |
| 742 | $conn->commit(); |
| 743 | |
| 744 | $this->data = array(); |
| 745 | |
| 746 | return $this; |
| 747 | } |
| 748 | |
| 749 | /** |
| 750 | * getIterator |
| 751 | * @return object ArrayIterator |
| 752 | */ |
| 753 | public function getIterator() |
| 754 | { |
| 755 | $data = $this->data; |
| 756 | return new ArrayIterator($data); |
| 757 | } |
| 758 | |
| 759 | /** |
| 760 | * returns a string representation of this object |
| 761 | */ |
| 762 | public function __toString() |
| 763 | { |
| 764 | return Doctrine_Lib::getCollectionAsString($this); |
| 765 | } |
| 766 | } |