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doctrine2/lib/Doctrine/Hydrator/RecordDriver.php

163 lines
5.0 KiB
PHP

<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Doctrine_Hydrate_RecordDriver
* Hydration strategy used for creating collections of entity objects.
*
* @package Doctrine
* @subpackage Hydrate
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Roman Borschel <roman@code-factory.org>
*/
class Doctrine_Hydrator_RecordDriver extends Doctrine_Locator_Injectable
{
protected $_collections = array();
protected $_records = array();
protected $_mappers = array();
public function getElementCollection($component)
{
$coll = new Doctrine_Collection($component);
$this->_collections[] = $coll;
return $coll;
}
public function getLastKey($coll)
{
$coll->end();
return $coll->key();
}
public function initRelated($record, $name)
{
return true;
/*
if ( ! is_array($record)) {
$record[$name];
return true;
}
return false;
*/
}
public function registerCollection(Doctrine_Collection $coll)
{
$this->_collections[] = $coll;
}
/**
* isIdentifiable
* returns whether or not a given data row is identifiable (it contains
* all primary key fields specified in the second argument)
*
* @param array $row
* @param Doctrine_Table $table
* @return boolean
*/
public function isIdentifiable(array $row, Doctrine_Table $table)
{
$primaryKeys = $table->getIdentifierColumnNames();
if (is_array($primaryKeys)) {
foreach ($primaryKeys as $id) {
if ( ! isset($row[$id])) {
return false;
}
}
} else {
if ( ! isset($row[$primaryKeys])) {
return false;
}
}
return true;
}
public function getNullPointer()
{
return self::$_null;
}
public function getElement(array $data, $component)
{
if ( ! isset($this->_mappers[$component])) {
$this->_mappers[$component] = Doctrine_Manager::getInstance()->getMapper($component);
}
$component = $this->_getClassnameToReturn($data, $component);
$record = $this->_mappers[$component]->getRecord($data);
if ( ! isset($this->_records[$record->getOid()]) ) {
$record->clearRelated();
$this->_records[$record->getOid()] = $record;
}
return $record;
}
public function flush()
{
// take snapshots from all initialized collections
foreach ($this->_collections as $key => $coll) {
$coll->takeSnapshot();
}
}
/**
* Check the dataset for a discriminator column, to determine the correct
* class to instantiate. If no discriminator column is found, the given
* classname will be returned.
*
* @todo this function could use reflection to check the first time it runs
* if the subclassing option is not set.
*
* @return string The name of the class to instantiate.
*
*/
protected function _getClassnameToReturn(array $data, $className)
{
$subClasses = $this->_mappers[$className]->getTable()->getOption('subclasses');
if ( ! isset($subClasses)) {
return $className;
}
foreach ($subClasses as $subclass) {
if ( ! isset($this->_mappers[$subclass])) {
$this->_mappers[$subclass] = Doctrine_Manager::getInstance()->getMapper($subclass);
}
$mapper = $this->_mappers[$subclass];
$inheritanceMap = $mapper->getDiscriminatorColumn();
foreach ($inheritanceMap as $key => $value) {
if (isset($data[$key]) && $data[$key] == $value) {
return $mapper->getComponentName();
}
}
}
return $className;
}
}