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<?php |
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declare(strict_types=1); |
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namespace JMS\Serializer\Construction; |
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use Doctrine\Persistence\ManagerRegistry; |
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use JMS\Serializer\DeserializationContext; |
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use JMS\Serializer\Exception\InvalidArgumentException; |
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use JMS\Serializer\Exception\ObjectConstructionException; |
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use JMS\Serializer\Exclusion\ExpressionLanguageExclusionStrategy; |
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use JMS\Serializer\Metadata\ClassMetadata; |
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use JMS\Serializer\Metadata\PropertyMetadata; |
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use JMS\Serializer\Visitor\DeserializationVisitorInterface; |
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/** |
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* Doctrine object constructor for new (or existing) objects during deserialization. |
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*/ |
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final class DoctrineObjectConstructor implements ObjectConstructorInterface |
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{ |
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public const ON_MISSING_NULL = 'null'; |
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public const ON_MISSING_EXCEPTION = 'exception'; |
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public const ON_MISSING_FALLBACK = 'fallback'; |
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/** |
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* @var string |
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*/ |
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private $fallbackStrategy; |
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/** |
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* @var ManagerRegistry |
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*/ |
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private $managerRegistry; |
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/** |
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* @var ObjectConstructorInterface |
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*/ |
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private $fallbackConstructor; |
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10 |
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/** |
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* @var ExpressionLanguageExclusionStrategy|null |
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*/ |
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private $expressionLanguageExclusionStrategy; |
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/** |
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* @param ManagerRegistry $managerRegistry Manager registry |
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* @param ObjectConstructorInterface $fallbackConstructor Fallback object constructor |
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*/ |
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public function __construct( |
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ManagerRegistry $managerRegistry, |
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ObjectConstructorInterface $fallbackConstructor, |
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string $fallbackStrategy = self::ON_MISSING_NULL, |
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?ExpressionLanguageExclusionStrategy $expressionLanguageExclusionStrategy = null |
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) { |
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$this->managerRegistry = $managerRegistry; |
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$this->fallbackConstructor = $fallbackConstructor; |
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$this->fallbackStrategy = $fallbackStrategy; |
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$this->expressionLanguageExclusionStrategy = $expressionLanguageExclusionStrategy; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function construct(DeserializationVisitorInterface $visitor, ClassMetadata $metadata, $data, array $type, DeserializationContext $context): ?object |
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{ |
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// Locate possible ObjectManager |
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$objectManager = $this->managerRegistry->getManagerForClass($metadata->name); |
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1 |
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if (!$objectManager) { |
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// No ObjectManager found, proceed with normal deserialization |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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} |
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9 |
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// Locate possible ClassMetadata |
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$classMetadataFactory = $objectManager->getMetadataFactory(); |
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if ($classMetadataFactory->isTransient($metadata->name)) { |
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// No ClassMetadata found, proceed with normal deserialization |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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} |
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// Managed entity, check for proxy load |
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if (!\is_array($data) && !(is_object($data) && 'SimpleXMLElement' === get_class($data))) { |
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// Single identifier, load proxy |
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return $objectManager->getReference($metadata->name, $data); |
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} |
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8 |
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// Fallback to default constructor if missing identifier(s) |
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$classMetadata = $objectManager->getClassMetadata($metadata->name); |
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$identifierList = []; |
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8 |
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foreach ($classMetadata->getIdentifierFieldNames() as $name) { |
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if (isset($metadata->propertyMetadata[$name])) { |
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$propertyMetadata = $metadata->propertyMetadata[$name]; |
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5 |
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// Avoid calling objectManager->find if some identification properties are excluded |
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if ($this->isIdentifierFieldExcluded($propertyMetadata, $context)) { |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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} |
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2 |
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$dataName = $propertyMetadata->serializedName; |
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1 |
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} else { |
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$dataName = $name; |
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} |
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3 |
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if (!array_key_exists($dataName, $data)) { |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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} |
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$identifierList[$name] = $data[$dataName]; |
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} |
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if (empty($identifierList)) { |
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// $classMetadataFactory->isTransient() fails on embeddable class with file metadata driver |
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// https://github.com/doctrine/persistence/issues/37 |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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} |
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// Entity update, load it from database |
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$object = $objectManager->find($metadata->name, $identifierList); |
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if (null === $object) { |
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switch ($this->fallbackStrategy) { |
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case self::ON_MISSING_NULL: |
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return null; |
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case self::ON_MISSING_EXCEPTION: |
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throw new ObjectConstructionException(sprintf('Entity %s can not be found', $metadata->name)); |
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case self::ON_MISSING_FALLBACK: |
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return $this->fallbackConstructor->construct($visitor, $metadata, $data, $type, $context); |
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default: |
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throw new InvalidArgumentException('The provided fallback strategy for the object constructor is not valid'); |
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} |
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} |
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$objectManager->initializeObject($object); |
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return $object; |
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} |
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private function isIdentifierFieldExcluded(PropertyMetadata $propertyMetadata, DeserializationContext $context): bool |
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{ |
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$exclusionStrategy = $context->getExclusionStrategy(); |
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if (null !== $exclusionStrategy && $exclusionStrategy->shouldSkipProperty($propertyMetadata, $context)) { |
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return true; |
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} |
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return null !== $this->expressionLanguageExclusionStrategy && $this->expressionLanguageExclusionStrategy->shouldSkipProperty($propertyMetadata, $context); |
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} |
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} |
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schmittjoh /
serializer
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