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DDC-1544 - Add ResolveTargetEntityListener

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Benjamin Eberlei 2011-12-17 19:35:10 +01:00
parent cfe1259400
commit 267ce7df88
1 changed files with 92 additions and 0 deletions
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lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php Normal file
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<?php
/*
* 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.doctrine-project.org>.
*/
namespace Doctrine\ORM\Tools;
use Doctrine\ORM\Events\LoadClassMetadataEventArgs;
/**
* ResolveTargetEntityListener
*
* Mechanism to overwrite interfaces or classes specified as association
* targets.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @since 2.2
*/
class ResolveTargetEntityListener
{
/**
* @var array
*/
private $resolveTargetEntities = array();
/**
* Add a target-entity class name to resolve to a new class name.
*
* @param string $originalEntity
* @param string $newEntity
* @param array $mapping
* @return void
*/
public function addResolveTargetEntity($originalEntity, $newEntity, array $mapping)
{
$mapping['targetEntity'] = ltrim($newEntity, "\\");
$this->resolveTargetEntities[ltrim($originalEntity, "\\")] = $mapping;
}
/**
* Process event and resolve new target entity names.
*
* @param LoadClassMetadataEventArgs $args
* @return void
*/
public function loadClassMetadata(LoadClassMetadataEventArgs $args)
{
$cm = $args->getClassMetadata();
foreach ($cm->associationMappings as $assocName => $mapping) {
if (isset($this->resolveTargetEntities[$mapping['targetEntity']])) {
$this->remapAssociation($cm, $mapping);
}
}
}
private function remapAssocation($classMetadata, $mapping)
{
$newMapping = $this->resolveTargetEntities[$mapping['targetEntity']];
$newMapping['fieldName'] = $mapping['fieldName'];
unset($cm->associationMappings[$mapping['fieldName']]);
switch ($mapping['type']) {
case ClassMetadata::MANY_TO_MANY:
$cm->mapManyToMany($newMapping);
break;
case ClassMetadata::MANY_TO_ONE:
$cm->mapManyToOne($newMapping);
break;
case ClassMetadata::ONE_TO_MANY:
$cm->mapOneToMany($newMapping);
break;
case ClassMetadata::ONE_TO_ONE:
$cm->mapOneToOne($newMapping);
break;
}
}
}