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<?php |
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declare(strict_types=1); |
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namespace GraphQL\Doctrine\Definition; |
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use Doctrine\ORM\EntityManager; |
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use GraphQL\Doctrine\Utils; |
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use GraphQL\Error\Error; |
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use GraphQL\Language\AST\IntValueNode; |
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use GraphQL\Language\AST\Node; |
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use GraphQL\Language\AST\StringValueNode; |
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use GraphQL\Type\Definition\ScalarType; |
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/** |
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* A specialized ID type that allows to fetch entity from DB. |
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*/ |
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final class EntityIDType extends ScalarType |
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{ |
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/** |
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* @param class-string $className |
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*/ |
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public function __construct(private readonly EntityManager $entityManager, /** |
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* The entity class name. |
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*/ |
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private readonly string $className, string $typeName) |
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{ |
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$this->name = $typeName; |
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$this->description = 'Automatically generated type to be used as input where an object of type `' . Utils::getTypeName($className) . '` is needed'; |
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parent::__construct(); |
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} |
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/** |
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* Serializes an internal value to include in a response. |
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* |
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* @param object $value |
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*/ |
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public function serialize($value): string |
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{ |
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$id = $this->entityManager->getClassMetadata($this->className)->getIdentifierValues($value); |
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// @phpstan-ignore-next-line |
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return (string) reset($id); |
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} |
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/** |
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* Parses an externally provided value (query variable) to use as an input. |
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* |
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* @param mixed $value |
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*/ |
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public function parseValue($value, ?array $variables = null): EntityID |
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{ |
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if (!is_string($value) && !is_int($value)) { |
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throw new Error('EntityID cannot represent value: ' . \GraphQL\Utils\Utils::printSafe($value)); |
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} |
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return $this->createEntityID((string) $value); |
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} |
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/** |
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* Parses an externally provided literal value (hardcoded in GraphQL query) to use as an input. |
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* |
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* @param Node $valueNode |
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*/ |
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public function parseLiteral($valueNode, ?array $variables = null): EntityID |
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{ |
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if ($valueNode instanceof StringValueNode || $valueNode instanceof IntValueNode) { |
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return $this->createEntityID((string) $valueNode->value); |
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} |
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// Intentionally without message, as all information already in wrapped Exception |
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throw new Error(); |
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} |
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/** |
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* Create EntityID to retrieve entity from DB later on. |
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*/ |
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private function createEntityID(string $id): EntityID |
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{ |
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return new EntityID($this->entityManager, $this->className, $id); |
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} |
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} |
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Ecodev /
graphql-doctrine
