144 lines
4.7 KiB
PHP
144 lines
4.7 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.org>.
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*/
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/**
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* Doctrine_Hydrator_RecordDriver
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* Hydration strategy used for creating graphs of entity objects.
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*
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* @package Doctrine
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* @subpackage Hydrate
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.phpdoctrine.org
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* @since 1.0
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* @version $Revision$
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Roman Borschel <roman@code-factory.org>
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*/
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class Doctrine_Hydrator_RecordDriver
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{
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/** Collections initialized by the driver */
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protected $_collections = array();
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/** Mappers */
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protected $_mappers = array();
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/** Memory for initialized relations */
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private $_initializedRelations = array();
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/** Null object */
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private $_nullObject;
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public function __construct()
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{
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$this->_nullObject = Doctrine_Null::$INSTANCE;
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}
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public function getElementCollection($component)
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{
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$coll = new Doctrine_Collection($component);
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$this->_collections[] = $coll;
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return $coll;
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}
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public function getLastKey($coll)
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{
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// check needed because of mixed results
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if (is_array($coll)) {
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end($coll);
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return key($coll);
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} else {
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$coll->end();
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return $coll->key();
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}
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}
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public function initRelatedCollection(Doctrine_Record $record, $name)
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{
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if ( ! isset($this->_initializedRelations[$record->getOid()][$name])) {
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$relation = $record->getClassMetadata()->getRelation($name);
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$relatedClass = $relation->getTable();
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$coll = $this->getElementCollection($relatedClass->getClassName());
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$coll->setReference($record, $relation);
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$record[$name] = $coll;
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$this->_initializedRelations[$record->getOid()][$name] = true;
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}
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}
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public function registerCollection(Doctrine_Collection $coll)
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{
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$this->_collections[] = $coll;
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}
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public function getNullPointer()
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{
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return $this->_nullObject;
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}
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public function getElement(array $data, $className)
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{
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$className = $this->_getClassnameToReturn($data, $className);
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if ( ! isset($this->_mappers[$className])) {
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$this->_mappers[$className] = Doctrine_Manager::getInstance()->getMapper($className);
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}
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$record = $this->_mappers[$className]->getRecord($data);
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return $record;
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}
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public function flush()
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{
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// take snapshots from all initialized collections
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foreach ($this->_collections as $coll) {
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$coll->takeSnapshot();
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}
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$this->_collections = array();
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$this->_mappers = array();
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$this->_initializedRelations = array();
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}
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/**
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* Check the dataset for a discriminator column to determine the correct
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* class to instantiate. If no discriminator column is found, the given
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* classname will be returned.
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*
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* @return string The name of the class to instantiate.
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* @todo Can be optimized performance-wise.
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*/
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protected function _getClassnameToReturn(array $data, $className)
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{
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if ( ! isset($this->_mappers[$className])) {
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$this->_mappers[$className] = Doctrine_Manager::getInstance()->getMapper($className);
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}
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$discCol = $this->_mappers[$className]->getClassMetadata()->getInheritanceOption('discriminatorColumn');
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if ( ! $discCol) {
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return $className;
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}
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$discMap = $this->_mappers[$className]->getClassMetadata()->getInheritanceOption('discriminatorMap');
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if (isset($data[$discCol], $discMap[$data[$discCol]])) {
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return $discMap[$data[$discCol]];
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} else {
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return $className;
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}
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}
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}
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