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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Doctrine\Form\ChoiceList;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use Doctrine\ORM\QueryBuilder;
use Doctrine\DBAL\Connection;
use Doctrine\ORM\EntityManager;
/**
* Getting Entities through the ORM QueryBuilder
*/
class ORMQueryBuilderLoader implements EntityLoaderInterface
{
/**
* Contains the query builder that builds the query for fetching the
* entities
*
* This property should only be accessed through queryBuilder.
*
* @var QueryBuilder
*/
private $queryBuilder;
/**
* Construct an ORM Query Builder Loader
*
* @param QueryBuilder|\Closure $queryBuilder
* @param EntityManager $manager
* @param string $class
*
* @throws UnexpectedTypeException
*/
public function __construct($queryBuilder, $manager = null, $class = null)
{
// If a query builder was passed, it must be a closure or QueryBuilder
// instance
if (!($queryBuilder instanceof QueryBuilder || $queryBuilder instanceof \Closure)) {
throw new UnexpectedTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder or \Closure');
}
if ($queryBuilder instanceof \Closure) {
if (!$manager instanceof EntityManager) {
throw new UnexpectedTypeException($manager, 'Doctrine\ORM\EntityManager');
}
$queryBuilder = $queryBuilder($manager->getRepository($class));
if (!$queryBuilder instanceof QueryBuilder) {
throw new UnexpectedTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder');
}
}
$this->queryBuilder = $queryBuilder;
}
/**
* {@inheritDoc}
*/
public function getEntities()
{
return $this->queryBuilder->getQuery()->execute();
}
/**
* {@inheritDoc}
*/
public function getEntitiesByIds($identifier, array $values)
{
$qb = clone ($this->queryBuilder);
$alias = current($qb->getRootAliases());
$parameter = 'ORMQueryBuilderLoader_getEntitiesByIds_'.$identifier;
$where = $qb->expr()->in($alias.'.'.$identifier, ':'.$parameter);
// Guess type
$entity = current($qb->getRootEntities());
$metadata = $qb->getEntityManager()->getClassMetadata($entity);
if (in_array($metadata->getTypeOfField($identifier), array('integer', 'bigint', 'smallint'))) {
$parameterType = Connection::PARAM_INT_ARRAY;
} else {
$parameterType = Connection::PARAM_STR_ARRAY;
}
return $qb->andWhere($where)
->getQuery()
->setParameter($parameter, $values, $parameterType)
->getResult();
}
}