. */ namespace Doctrine\ORM; use Doctrine\DBAL\LockMode; use Doctrine\Common\Persistence\ObjectRepository; use Doctrine\Common\Collections\Selectable; use Doctrine\Common\Collections\Criteria; use Doctrine\Common\Collections\ArrayCollection; use Doctrine\Common\Collections\ExpressionBuilder; /** * 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 * @author Guilherme Blanco * @author Jonathan Wage * @author Roman Borschel */ class EntityRepository implements ObjectRepository, Selectable { /** * @var Doctrine\Common\Collections\ExpressionBuilder */ private static $expressionBuilder; /** * @var string */ protected $_entityName; /** * @var EntityManager */ protected $_em; /** * @var \Doctrine\ORM\Mapping\ClassMetadata */ protected $_class; /** * Initializes a new EntityRepository. * * @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)); } /** * Creates a native SQL query. * * @param string $queryName * @return NativeQuery */ public function createNativeNamedQuery($queryName) { $queryMapping = $this->_class->getNamedNativeQuery($queryName); $rsm = new Query\ResultSetMappingBuilder($this->_em); $rsm->addNamedNativeQueryMapping($this->_class, $queryMapping); return $this->_em->createNativeQuery($queryMapping['query'], $rsm); } /** * 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 mixed $id The identifier. * @param integer $lockMode * @param integer $lockVersion * * @return object The entity. */ public function find($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. * * @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) { $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 * @return object */ public function findOneBy(array $criteria) { $persister = $this->_em->getUnitOfWork()->getEntityPersister($this->_entityName); return $persister->load($criteria, null, null, array(), 0, 1); } /** * Adds support for magic finders. * * @return array|object The found entity/entities. * @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, $arguments) { switch (true) { case (0 === strpos($method, 'findBy')): $by = substr($method, 6); $method = 'findBy'; break; case (0 === strpos($method, 'findOneBy')): $by = substr($method, 9); $method = 'findOneBy'; break; default: throw new \BadMethodCallException( "Undefined method '$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)) { 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]); case 4; return $this->$method(array($fieldName => $arguments[0]), $arguments[1], $arguments[2], $arguments[3]); default: // Do nothing } } throw ORMException::invalidFindByCall($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)); } /** * Return Builder object that helps with building criteria expressions. * * @return \Doctrine\Common\Collections\ExpressionBuilder */ public function expr() { if (self::$expressionBuilder === null) { self::$expressionBuilder = new ExpressionBuilder(); } return self::$expressionBuilder; } }