113 lines
4.0 KiB
PHP
113 lines
4.0 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.com>.
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*/
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Doctrine::autoload('Doctrine_Relation');
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/**
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* Doctrine_Relation_ForeignKey
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* This class represents a foreign key relation
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*
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @package Doctrine
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* @category Object Relational Mapping
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* @link www.phpdoctrine.com
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* @since 1.0
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* @version $Revision$
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*/
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class Doctrine_Relation_ForeignKey extends Doctrine_Relation
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{
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/**
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* processDiff
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*
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* @param Doctrine_Record $record
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* @param Doctrine_Connection $conn
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* @return void
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*/
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public function processDiff(Doctrine_Record $record, $conn = null)
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{
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if (!$conn) {
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$conn = $this->getTable()->getConnection();
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}
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$alias = $this->getAlias();
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if ($this->isOneToOne()) {
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if ($record->obtainOriginals($alias)
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&& $record->obtainOriginals($alias)->obtainIdentifier() != $this->obtainReference($alias)->obtainIdentifier()
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) {
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$record->obtainOriginals($alias)->delete($conn);
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}
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} else {
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if ($record->hasReference($alias)) {
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$new = $record->obtainReference($alias);
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if ( ! $record->obtainOriginals($alias)) {
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$record->loadReference($alias);
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}
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$operations = Doctrine_Relation::getDeleteOperations($record->obtainOriginals($alias), $new);
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foreach ($operations as $r) {
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$r->delete($conn);
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}
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$record->assignOriginals($alias, clone $record->get($alias));
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}
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}
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}
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/**
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* fetchRelatedFor
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*
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* fetches a component related to given record
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*
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* @param Doctrine_Record $record
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* @return Doctrine_Record|Doctrine_Collection
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*/
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public function fetchRelatedFor(Doctrine_Record $record)
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{
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$id = $record->get($this->definition['local']);
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if ($this->isOneToOne()) {
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if (empty($id)) {
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$related = $this->getTable()->create();
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} else {
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$dql = 'FROM ' . $this->getTable()->getComponentName()
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. ' WHERE ' . $this->getTable()->getComponentName()
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. '.' . $this->definition['foreign'] . ' = ?';
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$coll = $this->getTable()->getConnection()->query($dql, array($id));
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$related = $coll[0];
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}
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$related->set($this->definition['foreign'], $record, false);
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} else {
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if (empty($id)) {
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$related = new Doctrine_Collection($this->getTable());
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} else {
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$query = $this->getRelationDql(1);
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$related = $this->getTable()->getConnection()->query($query, array($id));
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}
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$related->setReference($record, $this);
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}
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return $related;
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}
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}
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