164 lines
4.9 KiB
PHP
164 lines
4.9 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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#namespace Doctrine::ORM::Mappings;
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#use Doctrine::ORM::Entity;
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/**
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* A one-to-one mapping describes a uni-directional mapping from one entity
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* to another entity.
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*
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* @since 2.0
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* @author Roman Borschel <roman@code-factory.org>
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* @todo Rename to OneToOneMapping
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*/
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class Doctrine_ORM_Mapping_OneToOneMapping extends Doctrine_ORM_Mapping_AssociationMapping
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{
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/**
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* Maps the source foreign/primary key columns to the target primary/foreign key columns.
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* i.e. source.id (pk) => target.user_id (fk).
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* Reverse mapping of _targetToSourceKeyColumns.
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*/
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protected $_sourceToTargetKeyColumns = array();
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/**
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* Maps the target primary/foreign key columns to the source foreign/primary key columns.
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* i.e. target.user_id (fk) => source.id (pk).
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* Reverse mapping of _sourceToTargetKeyColumns.
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*/
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protected $_targetToSourceKeyColumns = array();
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/**
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* Whether to delete orphaned elements (when nulled out, i.e. $foo->other = null)
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*
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* @var boolean
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*/
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protected $_deleteOrphans = false;
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/**
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* Constructor.
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* Creates a new OneToOneMapping.
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*
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* @param array $mapping The mapping info.
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*/
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public function __construct(array $mapping)
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{
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parent::__construct($mapping);
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}
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protected function _initMappingArray()
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{
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parent::_initMappingArray();
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$this->_mapping['deleteOrphans'] = false;
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}
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/**
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* Validates & completes the mapping. Mapping defaults are applied here.
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*
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* @param array $mapping The mapping to validate & complete.
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* @return array The validated & completed mapping.
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* @override
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*/
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protected function _validateAndCompleteMapping(array $mapping)
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{
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parent::_validateAndCompleteMapping($mapping);
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if ($this->isOwningSide()) {
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if ( ! isset($mapping['joinColumns'])) {
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throw Doctrine_MappingException::invalidMapping($this->_sourceFieldName);
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}
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$this->_sourceToTargetKeyColumns = $mapping['joinColumns'];
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$this->_targetToSourceKeyColumns = array_flip($this->_sourceToTargetKeyColumns);
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}
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$this->_deleteOrphans = isset($mapping['deleteOrphans']) ?
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(bool)$mapping['deleteOrphans'] : false;
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return $mapping;
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}
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/**
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* Gets the source-to-target key column mapping.
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*
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* @return unknown
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*/
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public function getSourceToTargetKeyColumns()
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{
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return $this->_sourceToTargetKeyColumns;
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}
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/**
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* Gets the target-to-source key column mapping.
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*
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* @return unknown
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*/
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public function getTargetToSourceKeyColumns()
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{
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return $this->_targetToSourceKeyColumns;
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}
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/**
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* Whether the association is one-to-one.
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*
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* @return boolean
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* @override
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*/
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public function isOneToOne()
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{
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return true;
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}
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/**
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* Lazy-loads the associated entity for a given entity.
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*
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* @param Doctrine::ORM::Entity $entity
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* @return void
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*/
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public function lazyLoadFor(Doctrine_Entity $entity)
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{
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if ($entity->getClassName() != $this->_sourceClass->getClassName()) {
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//error?
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}
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$dql = 'SELECT t.* FROM ' . $this->_targetClass->getClassName() . ' t WHERE ';
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$params = array();
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foreach ($this->_sourceToTargetKeyFields as $sourceKeyField => $targetKeyField) {
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if ($params) {
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$dql .= " AND ";
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}
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$dql .= "t.$targetKeyField = ?";
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$params[] = $entity->_rawGetField($sourceKeyField);
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}
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$otherEntity = $this->_targetClass->getEntityManager()
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->query($dql, $params)
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->getFirst();
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if ( ! $otherEntity) {
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$otherEntity = Doctrine_Null::$INSTANCE;
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}
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$entity->_internalSetReference($this->_sourceFieldName, $otherEntity);
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}
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}
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?>
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