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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\GraphQl\Resolver; |
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use ApiPlatform\Core\Api\IriConverterInterface; |
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use ApiPlatform\Core\Exception\ItemNotFoundException; |
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use ApiPlatform\Core\GraphQl\Serializer\ItemNormalizer; |
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use ApiPlatform\Core\Metadata\Resource\Factory\ResourceMetadataFactoryInterface; |
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use ApiPlatform\Core\Security\ResourceAccessCheckerInterface; |
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use ApiPlatform\Core\Util\ClassInfoTrait; |
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use GraphQL\Type\Definition\ResolveInfo; |
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use Symfony\Component\Serializer\Normalizer\NormalizerInterface; |
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/** |
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* Creates a function retrieving an item to resolve a GraphQL query. |
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* |
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* @experimental |
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* |
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* @author Alan Poulain <[email protected]> |
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* @author Kévin Dunglas <[email protected]> |
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*/ |
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final class ItemResolver |
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{ |
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use ClassInfoTrait; |
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use ResourceAccessCheckerTrait; |
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private $iriConverter; |
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private $resourceAccessChecker; |
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private $normalizer; |
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private $resourceMetadataFactory; |
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public function __construct(IriConverterInterface $iriConverter, NormalizerInterface $normalizer, ResourceMetadataFactoryInterface $resourceMetadataFactory, ResourceAccessCheckerInterface $resourceAccessChecker = null) |
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{ |
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$this->iriConverter = $iriConverter; |
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$this->normalizer = $normalizer; |
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$this->resourceMetadataFactory = $resourceMetadataFactory; |
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$this->resourceAccessChecker = $resourceAccessChecker; |
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} |
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public function __invoke($source, $args, $context, ResolveInfo $info) |
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{ |
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// Data already fetched and normalized (field or nested resource) |
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if (isset($source[$info->fieldName])) { |
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return $source[$info->fieldName]; |
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} |
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if (!isset($args['id'])) { |
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return null; |
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} |
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$baseNormalizationContext = ['attributes' => $info->getFieldSelection(PHP_INT_MAX)]; |
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try { |
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$item = $this->iriConverter->getItemFromIri($args['id'], $baseNormalizationContext); |
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} catch (ItemNotFoundException $e) { |
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return null; |
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} |
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$resourceClass = $this->getObjectClass($item); |
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$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
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$this->canAccess($this->resourceAccessChecker, $resourceMetadata, $resourceClass, $info, $item, 'query'); |
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$normalizationContext = $resourceMetadata->getGraphqlAttribute('query', 'normalization_context', [], true); |
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return $this->normalizer->normalize($item, ItemNormalizer::FORMAT, $normalizationContext + $baseNormalizationContext); |
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} |
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} |
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api-platform /
core
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