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<?php |
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/* |
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* This file is part of the API Platform project. |
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* |
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* (c) Kévin Dunglas <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace ApiPlatform\Core\Bridge\Doctrine\Orm\Extension; |
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use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGeneratorInterface; |
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use ApiPlatform\Core\Metadata\Resource\Factory\ResourceMetadataFactoryInterface; |
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use Doctrine\ORM\EntityManager; |
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use Doctrine\ORM\Mapping\ClassMetadataInfo; |
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use Doctrine\ORM\Query\Expr\Join; |
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use Doctrine\ORM\QueryBuilder; |
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/** |
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* Fixes filters on OneToMany associations |
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* https://github.com/api-platform/core/issues/944. |
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*/ |
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final class FilterEagerLoadingExtension implements QueryCollectionExtensionInterface |
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{ |
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private $resourceMetadataFactory; |
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private $forceEager; |
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public function __construct(ResourceMetadataFactoryInterface $resourceMetadataFactory, $forceEager = true) |
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{ |
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$this->resourceMetadataFactory = $resourceMetadataFactory; |
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$this->forceEager = $forceEager; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function applyToCollection(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, string $operationName = null) |
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{ |
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$em = $queryBuilder->getEntityManager(); |
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$classMetadata = $em->getClassMetadata($resourceClass); |
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if (!$this->hasFetchEagerAssociation($em, $classMetadata) && (false === $this->forceEager || false === $this->isForceEager($resourceClass, ['collection_operation_name' => $operationName]))) { |
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return; |
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} |
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//If no where part, nothing to do |
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$wherePart = $queryBuilder->getDQLPart('where'); |
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if (!$wherePart) { |
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return; |
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} |
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$joinParts = $queryBuilder->getDQLPart('join'); |
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$originAlias = 'o'; |
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if (!$joinParts || !isset($joinParts[$originAlias])) { |
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return; |
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} |
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$queryBuilderClone = clone $queryBuilder; |
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$queryBuilderClone->resetDQLPart('where'); |
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if (!$classMetadata->isIdentifierComposite) { |
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$replacementAlias = $queryNameGenerator->generateJoinAlias($originAlias); |
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$in = $this->getQueryBuilderWithNewAliases($queryBuilder, $queryNameGenerator, $originAlias, $replacementAlias); |
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$in->select($replacementAlias); |
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$queryBuilderClone->andWhere($queryBuilderClone->expr()->in($originAlias, $in->getDQL())); |
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} else { |
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// Because Doctrine doesn't support WHERE ( foo, bar ) IN () (https://github.com/doctrine/doctrine2/issues/5238), we are building as many subqueries as they are identifiers |
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foreach ($classMetadata->identifier as $identifier) { |
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$replacementAlias = $queryNameGenerator->generateJoinAlias($originAlias); |
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$in = $this->getQueryBuilderWithNewAliases($queryBuilder, $queryNameGenerator, $originAlias, $replacementAlias); |
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$in->select("IDENTITY($replacementAlias.$identifier)"); |
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$queryBuilderClone->andWhere($queryBuilderClone->expr()->in("$originAlias.$identifier", $in->getDQL())); |
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} |
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} |
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$queryBuilder->resetDQLPart('where'); |
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$queryBuilder->add('where', $queryBuilderClone->getDQLPart('where')); |
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} |
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/** |
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* Returns a clone of the given query builder where everything gets re-aliased. |
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* |
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* @param QueryBuilder $queryBuilder |
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* @param QueryNameGeneratorInterface $queryBuilder |
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* @param string $originAlias - the base alias |
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* @param string $replacement - the replacement for the base alias, will change the from alias |
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*/ |
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private function getQueryBuilderWithNewAliases(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $originAlias = 'o', string $replacement = 'o_2') |
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{ |
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$queryBuilderClone = clone $queryBuilder; |
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$joinParts = $queryBuilder->getDQLPart('join'); |
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$wherePart = $queryBuilder->getDQLPart('where'); |
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//reset parts |
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$queryBuilderClone->resetDQLPart('join'); |
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$queryBuilderClone->resetDQLPart('where'); |
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$queryBuilderClone->resetDQLPart('orderBy'); |
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$queryBuilderClone->resetDQLPart('groupBy'); |
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$queryBuilderClone->resetDQLPart('having'); |
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//Change from alias |
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$from = $queryBuilderClone->getDQLPart('from')[0]; |
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$queryBuilderClone->resetDQLPart('from'); |
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$queryBuilderClone->from($from->getFrom(), $replacement); |
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$aliases = ["$originAlias."]; |
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$replacements = ["$replacement."]; |
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//Change join aliases |
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foreach ($joinParts[$originAlias] as $joinPart) { |
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$aliases[] = "{$joinPart->getAlias()}."; |
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$alias = $queryNameGenerator->generateJoinAlias($joinPart->getAlias()); |
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$replacements[] = "$alias."; |
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$join = new Join($joinPart->getJoinType(), str_replace($aliases, $replacements, $joinPart->getJoin()), $alias, $joinPart->getConditionType(), $joinPart->getCondition(), $joinPart->getIndexBy()); |
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$queryBuilderClone->add('join', [$join], true); |
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} |
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$queryBuilderClone->add('where', str_replace($aliases, $replacements, (string) $wherePart)); |
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return $queryBuilderClone; |
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} |
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/** |
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* Does an operation force eager? |
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* |
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* @param string $resourceClass |
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* @param array $options |
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* |
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* @return bool |
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*/ |
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private function isForceEager(string $resourceClass, array $options): bool |
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{ |
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$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
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if (isset($options['collection_operation_name'])) { |
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$forceEager = $resourceMetadata->getCollectionOperationAttribute($options['collection_operation_name'], 'force_eager', null, true); |
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} else { |
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$forceEager = $resourceMetadata->getAttribute('force_eager'); |
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} |
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return is_bool($forceEager) ? $forceEager : $this->forceEager; |
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} |
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private function hasFetchEagerAssociation(EntityManager $em, ClassMetadataInfo $classMetadata, &$checked = []) |
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{ |
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$checked[] = $classMetadata->name; |
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foreach ($classMetadata->associationMappings as $mapping) { |
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if (ClassMetadataInfo::FETCH_EAGER === $mapping['fetch']) { |
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return true; |
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} |
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$related = $em->getClassMetadata($mapping['targetEntity']); |
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if (in_array($related->name, $checked, true)) { |
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continue; |
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} |
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if (true === $this->hasFetchEagerAssociation($em, $related, $checked)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: