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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
* and is licensed under the LGPL. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM;
use Doctrine\DBAL\LockMode;
use Doctrine\Common\Persistence\ObjectRepository;
/**
* 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
{
/**
* @var string
*/
protected $_entityName;
/**
* @var EntityManager
*/
protected $_em;
/**
* @var Doctrine\ORM\Mapping\ClassMetadata
*/
protected $_class;
/**
* Initializes a new <tt>EntityRepository</tt>.
*
* @param EntityManager $em The EntityManager to use.
* @param ClassMetadata $classMetadata The class descriptor.
*/
public function __construct($em, Mapping\ClassMetadata $class)
{
$this->_entityName = $class->name;
$this->_em = $em;
$this->_class = $class;
}
/**
* Create a new QueryBuilder instance that is prepopulated for this entity name
*
* @param string $alias
* @return QueryBuilder $qb
*/
public function createQueryBuilder($alias)
{
return $this->_em->createQueryBuilder()
->select($alias)
->from($this->_entityName, $alias);
}
/**
* Create a new Query instance based on a predefined metadata named query.
*
* @param string $queryName
* @return Query
*/
public function createNamedQuery($queryName)
{
return $this->_em->createQuery($this->_class->getNamedQuery($queryName));
}
/**
* Clears the repository, causing all managed entities to become detached.
*/
public function clear()
{
$this->_em->clear($this->_class->rootEntityName);
}
/**
* Finds an entity by its primary key / identifier.
*
* @param $id The identifier.
* @param int $lockMode
* @param int $lockVersion
* @return object The entity.
*/
public function find($id, $lockMode = LockMode::NONE, $lockVersion = null)
{
// Check identity map first
if ($entity = $this->_em->getUnitOfWork()->tryGetById($id, $this->_class->rootEntityName)) {
if (!($entity instanceof $this->_class->name)) {
return null;
}
if ($lockMode != LockMode::NONE) {
$this->_em->lock($entity, $lockMode, $lockVersion);
}
return $entity; // Hit!
}
if ( ! is_array($id) || count($id) <= 1) {
// @todo FIXME: Not correct. Relies on specific order.
$value = is_array($id) ? array_values($id) : array($id);
$id = array_combine($this->_class->identifier, $value);
}
if ($lockMode == LockMode::NONE) {
return $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName)->load($id);
} else if ($lockMode == LockMode::OPTIMISTIC) {
if (!$this->_class->isVersioned) {
throw OptimisticLockException::notVersioned($this->_entityName);
}
$entity = $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName)->load($id);
$this->_em->getUnitOfWork()->lock($entity, $lockMode, $lockVersion);
return $entity;
} else {
if (!$this->_em->getConnection()->isTransactionActive()) {
throw TransactionRequiredException::transactionRequired();
}
return $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName)->load($id, null, null, array(), $lockMode);
}
}
/**
* Finds all entities in the repository.
*
* @return array The entities.
*/
public function findAll()
{
return $this->findBy(array());
}
/**
* Finds entities by a set of criteria.
*
* @param array $criteria
* @param array|null $orderBy
* @param int|null $limit
* @param int|null $offset
* @return array The objects.
*/
public function findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
{
return $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName)->loadAll($criteria, $orderBy, $limit, $offset);
}
/**
* Finds a single entity by a set of criteria.
*
* @param array $criteria
* @return object
*/
public function findOneBy(array $criteria)
{
return $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName)->load($criteria, null, null, array(), 0, 1);
}
/**
* Adds support for magic finders.
*
* @return array|object The found entity/entities.
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* @throws BadMethodCallException If the method called is an invalid find* method
* or no find* method at all and therefore an invalid
* method call.
*/
public function __call($method, $arguments)
{
if (substr($method, 0, 6) == 'findBy') {
$by = substr($method, 6, strlen($method));
$method = 'findBy';
} else if (substr($method, 0, 9) == 'findOneBy') {
$by = substr($method, 9, strlen($method));
$method = 'findOneBy';
} else {
throw new \BadMethodCallException(
"Undefined method '$method'. The method name must start with ".
"either findBy or findOneBy!"
);
}
if (empty($arguments)) {
throw ORMException::findByRequiresParameter($method.$by);
}
$fieldName = lcfirst(\Doctrine\Common\Util\Inflector::classify($by));
if ($this->_class->hasField($fieldName) || $this->_class->hasAssociation($fieldName)) {
return $this->$method(array($fieldName => $arguments[0]));
} else {
throw ORMException::invalidFindByCall($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;
}
}