<?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 Doctrine\DBAL\ArrayParameterType;
use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Types\ConversionException;
use Doctrine\DBAL\Types\Type;
use Doctrine\ORM\QueryBuilder;
use Symfony\Component\Form\Exception\TransformationFailedException;
/**
* Loads entities using a {@link QueryBuilder} instance.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
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;
public function __construct(QueryBuilder $queryBuilder)
{
$this->queryBuilder = $queryBuilder;
}
/**
* {@inheritdoc}
*/
public function getEntities()
{
return $this->queryBuilder->getQuery()->execute();
}
/**
* {@inheritdoc}
*/
public function getEntitiesByIds(string $identifier, array $values)
{
if (null !== $this->queryBuilder->getMaxResults() || 0 < (int) $this->queryBuilder->getFirstResult()) {
// an offset or a limit would apply on results including the where clause with submitted id values
// that could make invalid choices valid
$choices = [];
$metadata = $this->queryBuilder->getEntityManager()->getClassMetadata(current($this->queryBuilder->getRootEntities()));
foreach ($this->getEntities() as $entity) {
if (\in_array((string) current($metadata->getIdentifierValues($entity)), $values, true)) {
$choices[] = $entity;
}
}
return $choices;
}
$qb = clone $this->queryBuilder;
$alias = current($qb->getRootAliases());
$parameter = 'ORMQueryBuilderLoader_getEntitiesByIds_'.$identifier;
$parameter = str_replace('.', '_', $parameter);
$where = $qb->expr()->in($alias.'.'.$identifier, ':'.$parameter);
// Guess type
$entity = current($qb->getRootEntities());
$metadata = $qb->getEntityManager()->getClassMetadata($entity);
if (\in_array($type = $metadata->getTypeOfField($identifier), ['integer', 'bigint', 'smallint'])) {
$parameterType = class_exists(ArrayParameterType::class) ? ArrayParameterType::INTEGER : Connection::PARAM_INT_ARRAY;
// Filter out non-integer values (e.g. ""). If we don't, some
// databases such as PostgreSQL fail.
$values = array_values(array_filter($values, function ($v) {
return (string) $v === (string) (int) $v || ctype_digit($v);
}));
} elseif (\in_array($type, ['ulid', 'uuid', 'guid'])) {
$parameterType = class_exists(ArrayParameterType::class) ? ArrayParameterType::STRING : Connection::PARAM_STR_ARRAY;
// Like above, but we just filter out empty strings.
$values = array_values(array_filter($values, function ($v) {
return '' !== (string) $v;
}));
// Convert values into right type
if (Type::hasType($type)) {
$doctrineType = Type::getType($type);
$platform = $qb->getEntityManager()->getConnection()->getDatabasePlatform();
foreach ($values as &$value) {
try {
$value = $doctrineType->convertToDatabaseValue($value, $platform);
} catch (ConversionException $e) {
throw new TransformationFailedException(sprintf('Failed to transform "%s" into "%s".', $value, $type), 0, $e);
}
}
unset($value);
}
} else {
$parameterType = class_exists(ArrayParameterType::class) ? ArrayParameterType::STRING : Connection::PARAM_STR_ARRAY;
}
if (!$values) {
return [];
}
return $qb->andWhere($where)
->getQuery()
->setParameter($parameter, $values, $parameterType)
->getResult();
}
}