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doctrine2/lib/Doctrine/ORM/EntityRepository.php

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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
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* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM;
use Doctrine\ORM\Query\ResultSetMappingBuilder;
use Doctrine\DBAL\LockMode;
use Doctrine\Common\Persistence\ObjectRepository;
use Doctrine\Common\Collections\Selectable;
use Doctrine\Common\Collections\Criteria;
use Doctrine\Common\Collections\ArrayCollection;
/**
* An EntityRepository serves as a repository for entities with generic as well as
* business specific methods for retrieving entities.
*
* This class is designed for inheritance and users can subclass this class to
* write their own repositories with business-specific methods to locate entities.
*
* @since 2.0
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
*/
class EntityRepository implements ObjectRepository, Selectable
{
/**
* @var string
*/
protected $_entityName;
/**
* @var EntityManager
*/
protected $_em;
/**
* @var \Doctrine\ORM\Mapping\ClassMetadata
*/
protected $_class;
/**
* Initializes a new <tt>EntityRepository</tt>.
*
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* @param EntityManager $em The EntityManager to use.
* @param Mapping\ClassMetadata $class The class descriptor.
*/
public function __construct($em, Mapping\ClassMetadata $class)
{
$this->_entityName = $class->name;
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$this->_em = $em;
$this->_class = $class;
}
/**
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* Creates a new QueryBuilder instance that is prepopulated for this entity name.
*
* @param string $alias
* @param string $indexBy The index for the from.
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*
* @return QueryBuilder
*/
public function createQueryBuilder($alias, $indexBy = null)
{
return $this->_em->createQueryBuilder()
->select($alias)
->from($this->_entityName, $alias, $indexBy);
}
/**
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* Creates a new result set mapping builder for this entity.
*
* The column naming strategy is "INCREMENT".
*
* @param string $alias
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*
* @return ResultSetMappingBuilder
*/
public function createResultSetMappingBuilder($alias)
{
$rsm = new ResultSetMappingBuilder($this->_em, ResultSetMappingBuilder::COLUMN_RENAMING_INCREMENT);
$rsm->addRootEntityFromClassMetadata($this->_entityName, $alias);
return $rsm;
}
/**
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* Creates a new Query instance based on a predefined metadata named query.
*
* @param string $queryName
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*
* @return Query
*/
public function createNamedQuery($queryName)
{
return $this->_em->createQuery($this->_class->getNamedQuery($queryName));
}
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/**
* Creates a native SQL query.
*
* @param string $queryName
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*
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* @return NativeQuery
*/
public function createNativeNamedQuery($queryName)
{
$queryMapping = $this->_class->getNamedNativeQuery($queryName);
$rsm = new Query\ResultSetMappingBuilder($this->_em);
$rsm->addNamedNativeQueryMapping($this->_class, $queryMapping);
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return $this->_em->createNativeQuery($queryMapping['query'], $rsm);
}
/**
* Clears the repository, causing all managed entities to become detached.
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*
* @return void
*/
public function clear()
{
$this->_em->clear($this->_class->rootEntityName);
}
/**
* Finds an entity by its primary key / identifier.
*
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* @param mixed $id The identifier.
* @param int $lockMode The lock mode.
* @param int|null $lockVersion The lock version.
*
* @return object|null The entity instance or NULL if the entity can not be found.
*/
public function find($id, $lockMode = LockMode::NONE, $lockVersion = null)
{
return $this->_em->find($this->_entityName, $id, $lockMode, $lockVersion);
}
/**
* Finds all entities in the repository.
*
* @return array The entities.
*/
public function findAll()
{
return $this->findBy(array());
}
/**
* Finds entities by a set of criteria.
*
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* @param array $criteria
* @param array|null $orderBy
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* @param int|null $limit
* @param int|null $offset
*
* @return array The objects.
*/
public function findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
{
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$persister = $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName);
return $persister->loadAll($criteria, $orderBy, $limit, $offset);
}
/**
* Finds a single entity by a set of criteria.
*
* @param array $criteria
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* @param array|null $orderBy
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*
* @return object|null The entity instance or NULL if the entity can not be found.
*/
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public function findOneBy(array $criteria, array $orderBy = null)
{
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$persister = $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName);
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return $persister->load($criteria, null, null, array(), 0, 1, $orderBy);
}
/**
* Adds support for magic finders.
*
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* @param string $method
* @param array $arguments
*
* @return array|object The found entity/entities.
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*
* @throws ORMException
* @throws \BadMethodCallException If the method called is an invalid find* method
* or no find* method at all and therefore an invalid
* method call.
*/
public function __call($method, $arguments)
{
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switch (true) {
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case (0 === strpos($method, 'findBy')):
$by = substr($method, 6);
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$method = 'findBy';
break;
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case (0 === strpos($method, 'findOneBy')):
$by = substr($method, 9);
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$method = 'findOneBy';
break;
default:
throw new \BadMethodCallException(
"Undefined method '$method'. The method name must start with ".
"either findBy or findOneBy!"
);
}
if (empty($arguments)) {
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throw ORMException::findByRequiresParameter($method . $by);
}
$fieldName = lcfirst(\Doctrine\Common\Util\Inflector::classify($by));
if ($this->_class->hasField($fieldName) || $this->_class->hasAssociation($fieldName)) {
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switch (count($arguments)) {
case 1:
return $this->$method(array($fieldName => $arguments[0]));
case 2:
return $this->$method(array($fieldName => $arguments[0]), $arguments[1]);
case 3:
return $this->$method(array($fieldName => $arguments[0]), $arguments[1], $arguments[2]);
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case 4:
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return $this->$method(array($fieldName => $arguments[0]), $arguments[1], $arguments[2], $arguments[3]);
default:
// Do nothing
}
}
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throw ORMException::invalidFindByCall($this->_entityName, $fieldName, $method.$by);
}
/**
* @return string
*/
protected function getEntityName()
{
return $this->_entityName;
}
/**
* @return string
*/
public function getClassName()
{
return $this->getEntityName();
}
/**
* @return EntityManager
*/
protected function getEntityManager()
{
return $this->_em;
}
/**
* @return Mapping\ClassMetadata
*/
protected function getClassMetadata()
{
return $this->_class;
}
/**
* Select all elements from a selectable that match the expression and
* return a new collection containing these elements.
*
* @param \Doctrine\Common\Collections\Criteria $criteria
*
* @return \Doctrine\Common\Collections\Collection
*/
public function matching(Criteria $criteria)
{
$persister = $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName);
return new ArrayCollection($persister->loadCriteria($criteria));
}
}