/
OneToOneMapping.php
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/
OneToOneMapping.php
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<?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>.
*/
namespace Doctrine\ORM\Mapping;
/**
* A one-to-one mapping describes a uni-directional mapping from one entity
* to another entity.
*
* @since 2.0
* @author Roman Borschel <roman@code-factory.org>
*/
class OneToOneMapping extends AssociationMapping
{
/**
* Maps the source foreign/primary key columns to the target primary/foreign key columns.
* i.e. source.id (pk) => target.user_id (fk).
* Reverse mapping of _targetToSourceKeyColumns.
*/
private $_sourceToTargetKeyColumns = array();
/**
* Maps the target primary/foreign key columns to the source foreign/primary key columns.
* i.e. target.user_id (fk) => source.id (pk).
* Reverse mapping of _sourceToTargetKeyColumns.
*/
private $_targetToSourceKeyColumns = array();
/**
* Whether to delete orphaned elements (when nulled out, i.e. $foo->other = null)
*
* @var boolean
*/
private $_deleteOrphans = false;
/**
* The join column definitions.
*
* @var array
*/
private $_joinColumns = array();
/**
* Creates a new OneToOneMapping.
*
* @param array $mapping The mapping info.
*/
public function __construct(array $mapping)
{
parent::__construct($mapping);
}
/**
* {@inheritdoc}
*
* @param array $mapping The mapping to validate & complete.
* @return array The validated & completed mapping.
* @override
*/
protected function _validateAndCompleteMapping(array $mapping)
{
parent::_validateAndCompleteMapping($mapping);
if ($this->isOwningSide()) {
if ( ! isset($mapping['joinColumns'])) {
throw MappingException::invalidMapping($this->_sourceFieldName);
}
$this->_joinColumns = $mapping['joinColumns'];
foreach ($mapping['joinColumns'] as $joinColumn) {
$this->_sourceToTargetKeyColumns[$joinColumn['name']] = $joinColumn['referencedColumnName'];
}
$this->_targetToSourceKeyColumns = array_flip($this->_sourceToTargetKeyColumns);
}
$this->_deleteOrphans = isset($mapping['deleteOrphans']) ?
(bool)$mapping['deleteOrphans'] : false;
return $mapping;
}
/**
* Gets the join column definitions for this mapping.
*
* @return array
*/
public function getJoinColumns()
{
return $this->_joinColumns;
}
/**
* Gets the source-to-target key column mapping.
*
* @return array
*/
public function getSourceToTargetKeyColumns()
{
return $this->_sourceToTargetKeyColumns;
}
/**
* Gets the target-to-source key column mapping.
*
* @return array
*/
public function getTargetToSourceKeyColumns()
{
return $this->_targetToSourceKeyColumns;
}
/**
* {@inheritdoc}
*
* @return boolean
* @override
*/
public function isOneToOne()
{
return true;
}
/**
* {@inheritdoc}
*
* @param Doctrine\ORM\Entity $entity
* @return void
*/
public function lazyLoadFor($entity, $entityManager)
{
$sourceClass = $entityManager->getClassMetadata($this->_sourceEntityName);
$targetClass = $entityManager->getClassMetadata($this->_targetEntityName);
$dql = 'SELECT t FROM ' . $targetClass->getClassName() . ' t WHERE ';
$params = array();
foreach ($this->_sourceToTargetKeyFields as $sourceKeyField => $targetKeyField) {
if ($params) $dql .= " AND ";
$dql .= "t.$targetKeyField = ?";
$params[] = $sourceClass->getReflectionProperty($sourceKeyField)->getValue($entity);
}
$otherEntity = $entityManager->query($dql, $params)->getFirst();
if ( ! $otherEntity) {
$otherEntity = null;
}
$sourceClass->getReflectionProperty($this->_sourceFieldName)->setValue($entity, $otherEntity);
}
}