ApiPlatform\Core\Bridge\Doctrine\Orm\SubcollectionDataProvider::getSubcollection()

Complexity

Conditions	13
Paths	42

Size

Total Lines	77
Code Lines	46

Duplication

Lines	7
Ratio	9.09 %

Importance

Changes

0

<?php
    public function getSubcollection(string $resourceClass, array $identifiers, array $context, string $operationName)
    {
        $manager = $this->managerRegistry->getManagerForClass($resourceClass);
        if (null === $manager) {
            throw new ResourceClassNotSupportedException();
        }

        $repository = $manager->getRepository($resourceClass);
        if (!method_exists($repository, 'createQueryBuilder')) {
            throw new RuntimeException('The repository class must have a "createQueryBuilder" method.');
        }

        if (!isset($context['identifiers']) || !isset($context['property'])) {
            throw new ResourceClassNotSupportedException('The given resource class is not a subcollection');
        }

        $queryBuilder = $repository->createQueryBuilder('o');
        $queryNameGenerator = new QueryNameGenerator();
        $previousQueryBuilder = null;
        $previousAlias = null;

        $num = count($context['identifiers']);

        while ($num--) {
            list($identifier, $identifierResourceClass) = $context['identifiers'][$num];
            $previousIdentifier = $context['identifiers'][$num + 1][0] ?? $context['property'];

            $classMetadata = $manager->getClassMetadata($identifierResourceClass);

            $qb = $manager->createQueryBuilder();
            $alias = $queryNameGenerator->generateJoinAlias($identifier);

            if (null !== $previousIdentifier) {
                //MANY_TO_MANY relations needs an explicit join so that the identifier part can be retrieved
                if ($classMetadata->getAssociationMapping($previousIdentifier)['type'] === ClassMetadataInfo::MANY_TO_MANY) {
                    $joinAlias = $queryNameGenerator->generateJoinAlias($previousIdentifier);

                    $qb->select($joinAlias)
                        ->from($identifierResourceClass, $alias)
                        ->innerJoin("$alias.$previousIdentifier", $joinAlias);
                } else {
                    $qb->select("IDENTITY($alias.$previousIdentifier)")
                        ->from($identifierResourceClass, $alias);
                }
            }

            $normalizedIdentifiers = $this->normalizeIdentifiers($identifiers[$identifier], $manager, $identifierResourceClass);

            foreach ($normalizedIdentifiers as $key => $value) {
                $placeholder = $queryNameGenerator->generateParameterName($key);
                $qb->andWhere("$alias.$key = :$placeholder");
                $queryBuilder->setParameter($placeholder, $value);
            }

            if (null === $previousQueryBuilder) {
                $previousQueryBuilder = $qb;
            } else {
                $previousQueryBuilder->andWhere($qb->expr()->in($previousAlias, $qb->getDQL()));
            }

            $previousAlias = $alias;
        }

        $queryBuilder->where(
            $queryBuilder->expr()->in('o', $previousQueryBuilder->getDQL())
        );

        foreach ($this->collectionExtensions as $extension) {

This code seems to be duplicated across your project.

            $extension->applyToCollection($queryBuilder, $queryNameGenerator, $resourceClass, $operationName);

            if ($extension instanceof QueryResultCollectionExtensionInterface && $extension->supportsResult($resourceClass, $operationName)) {
                return $extension->getResult($queryBuilder);
            }
        }

        return $queryBuilder->getQuery()->getResult();
    }
}