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<?php
/*
* This file is part of the API Platform project.
*
* (c) Kévin Dunglas <dunglas@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace ApiPlatform\GraphQl\Resolver\Factory;
use ApiPlatform\GraphQl\Resolver\QueryCollectionResolverInterface;
use ApiPlatform\GraphQl\Resolver\Stage\ReadStageInterface;
use ApiPlatform\GraphQl\Resolver\Stage\SecurityPostDenormalizeStageInterface;
use ApiPlatform\GraphQl\Resolver\Stage\SecurityStageInterface;
use ApiPlatform\GraphQl\Resolver\Stage\SerializeStageInterface;
use ApiPlatform\Metadata\GraphQl\Operation;
use ApiPlatform\Util\CloneTrait;
use GraphQL\Type\Definition\ResolveInfo;
use Psr\Container\ContainerInterface;
use Symfony\Component\HttpFoundation\RequestStack;
/**
* Creates a function retrieving a collection to resolve a GraphQL query or a field returned by a mutation.
*
* @author Alan Poulain <contact@alanpoulain.eu>
* @author Kévin Dunglas <dunglas@gmail.com>
* @author Vincent Chalamon <vincentchalamon@gmail.com>
*/
final class CollectionResolverFactory implements ResolverFactoryInterface
{
use CloneTrait;
private $readStage;
private $securityStage;
private $securityPostDenormalizeStage;
private $serializeStage;
private $queryResolverLocator;
private $requestStack;
public function __construct(ReadStageInterface $readStage, SecurityStageInterface $securityStage, SecurityPostDenormalizeStageInterface $securityPostDenormalizeStage, SerializeStageInterface $serializeStage, ContainerInterface $queryResolverLocator, RequestStack $requestStack = null)
{
$this->readStage = $readStage;
$this->securityStage = $securityStage;
$this->securityPostDenormalizeStage = $securityPostDenormalizeStage;
$this->serializeStage = $serializeStage;
$this->queryResolverLocator = $queryResolverLocator;
$this->requestStack = $requestStack;
}
public function __invoke(?string $resourceClass = null, ?string $rootClass = null, ?Operation $operation = null): callable
{
return function (?array $source, array $args, $context, ResolveInfo $info) use ($resourceClass, $rootClass, $operation) {
// If authorization has failed for a relation field (e.g. via ApiProperty security), the field is not present in the source: null can be returned directly to ensure the collection isn't in the response.
if (null === $resourceClass || null === $rootClass || (null !== $source && !\array_key_exists($info->fieldName, $source))) {
return null;
}
if ($this->requestStack && null !== $request = $this->requestStack->getCurrentRequest()) {
$request->attributes->set(
'_graphql_collections_args',
[$resourceClass => $args] + $request->attributes->get('_graphql_collections_args', [])
);
}
$resolverContext = ['source' => $source, 'args' => $args, 'info' => $info, 'is_collection' => true, 'is_mutation' => false, 'is_subscription' => false];
$collection = ($this->readStage)($resourceClass, $rootClass, $operation, $resolverContext);
if (!is_iterable($collection)) {
throw new \LogicException('Collection from read stage should be iterable.');
}
$queryResolverId = $operation->getResolver();
if (null !== $queryResolverId) {
/** @var QueryCollectionResolverInterface $queryResolver */
$queryResolver = $this->queryResolverLocator->get($queryResolverId);
$collection = $queryResolver($collection, $resolverContext);
}
// Only perform security stage on the top-level query
if (null === $source) {
($this->securityStage)($resourceClass, $operation, $resolverContext + [
'extra_variables' => [
'object' => $collection,
],
]);
($this->securityPostDenormalizeStage)($resourceClass, $operation, $resolverContext + [
'extra_variables' => [
'object' => $collection,
'previous_object' => $this->clone($collection),
],
]);
}
return ($this->serializeStage)($collection, $resourceClass, $operation, $resolverContext);
};
}
}