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<?php |
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declare(strict_types=1); |
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namespace ApiSkeletons\Doctrine\ORM\GraphQL\Metadata; |
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use ApiSkeletons\Doctrine\ORM\GraphQL\Attribute; |
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use ApiSkeletons\Doctrine\ORM\GraphQL\Config; |
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use ApiSkeletons\Doctrine\ORM\GraphQL\Event\Metadata; |
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use ApiSkeletons\Doctrine\ORM\GraphQL\Filter\Filters; |
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use ApiSkeletons\Doctrine\ORM\GraphQL\Hydrator\Strategy; |
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use ArrayObject; |
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use Doctrine\ORM\EntityManager; |
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use Doctrine\ORM\Mapping\ClassMetadata; |
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use League\Event\EventDispatcher; |
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use ReflectionClass; |
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use function assert; |
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use function count; |
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/** |
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* Build metadata for entities |
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*/ |
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class MetadataFactory extends AbstractMetadataFactory |
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{ |
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public function __construct( |
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protected ArrayObject $metadata, |
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protected EntityManager $entityManager, |
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protected Config $config, |
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protected GlobalEnable $globalEnable, |
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protected EventDispatcher $eventDispatcher, |
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) { |
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} |
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/** |
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* Build metadata for all entities and return it |
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*/ |
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public function __invoke(): ArrayObject |
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{ |
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if (count($this->metadata)) { |
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return $this->metadata; |
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} |
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// Fetch all entity classes from the entity manager |
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$entityClasses = []; |
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foreach ($this->entityManager->getMetadataFactory()->getAllMetadata() as $metadata) { |
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$entityClasses[] = $metadata->getName(); |
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} |
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// If global enable is set, use the GlobalEnable class to build metadata |
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if ($this->config->getGlobalEnable()) { |
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$this->metadata = ($this->globalEnable)($entityClasses); |
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return $this->metadata; |
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} |
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// Build metadata for each entity class |
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foreach ($entityClasses as $entityClass) { |
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$reflectionClass = new ReflectionClass($entityClass); |
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$entityClassMetadata = $this->entityManager |
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->getMetadataFactory() |
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->getMetadataFor($reflectionClass->getName()); |
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$this->buildMetadataForEntity($reflectionClass); |
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$this->buildMetadataForFields($entityClassMetadata, $reflectionClass); |
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$this->buildMetadataForAssociations($reflectionClass); |
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} |
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// Fire the metadata.build event |
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$this->eventDispatcher->dispatch( |
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new Metadata($this->metadata, 'metadata.build'), |
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); |
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return $this->metadata; |
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} |
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/** |
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* Using the entity class attributes, generate the metadata. |
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* The buildmetadata* functions exist to simplify the buildMetadata |
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* function. |
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*/ |
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private function buildMetadataForEntity(ReflectionClass $reflectionClass): void |
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{ |
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$entityInstance = null; |
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// Fetch attributes for the entity class filterd by Attribute\Entity |
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foreach ($reflectionClass->getAttributes(Attribute\Entity::class) as $attribute) { |
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$instance = $attribute->newInstance(); |
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// Only process attributes for the Config group |
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if ($instance->getGroup() !== $this->config->getGroup()) { |
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continue; |
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} |
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// Only one matching instance per group is allowed |
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assert( |
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! $entityInstance, |
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'Duplicate attribute found for entity ' |
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. $reflectionClass->getName() . ', group ' . $instance->getGroup(), |
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); |
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$entityInstance = $instance; |
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// Save entity-level metadata |
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$this->metadata[$reflectionClass->getName()] = [ |
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'entityClass' => $reflectionClass->getName(), |
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'byValue' => $this->config->getGlobalByValue() ?? $instance->getByValue(), |
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'limit' => $instance->getLimit(), |
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'hydratorNamingStrategy' => $instance->getHydratorNamingStrategy(), |
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'fields' => [], |
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'hydratorFilters' => $instance->getHydratorFilters(), |
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'excludeFilters' => Filters::toStringArray($instance->getExcludeFilters()), |
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'description' => $instance->getDescription(), |
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'typeName' => $instance->getTypeName() |
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? $this->appendGroupSuffix($instance->getTypeName()) : |
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$this->getTypeName($reflectionClass->getName()), |
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]; |
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} |
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} |
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/** |
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* Build the metadata for each field in an entity based on the Attribute\Field |
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*/ |
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private function buildMetadataForFields( |
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ClassMetadata $entityClassMetadata, |
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ReflectionClass $reflectionClass, |
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): void { |
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foreach ($entityClassMetadata->getFieldNames() as $fieldName) { |
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$fieldInstance = null; |
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$reflectionField = $reflectionClass->getProperty($fieldName); |
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foreach ($reflectionField->getAttributes(Attribute\Field::class) as $attribute) { |
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$instance = $attribute->newInstance(); |
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// Only process attributes for the same group |
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if ($instance->getGroup() !== $this->config->getGroup()) { |
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continue; |
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} |
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// Only one matching instance per group is allowed |
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assert( |
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! $fieldInstance, |
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'Duplicate attribute found for field ' |
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. $fieldName . ', group ' . $instance->getGroup(), |
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); |
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$fieldInstance = $instance; |
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$fieldMetadata = [ |
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'description' => $instance->getDescription(), |
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'type' => $instance->getType() ?? $entityClassMetadata->getTypeOfField($fieldName), |
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'hydratorStrategy' => $instance->getHydratorStrategy() ?? |
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$this->getDefaultStrategy($entityClassMetadata->getTypeOfField($fieldName)), |
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'excludeFilters' => Filters::toStringArray($instance->getExcludeFilters()), |
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]; |
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$this->metadata[$reflectionClass->getName()]['fields'][$fieldName] = $fieldMetadata; |
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} |
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} |
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} |
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/** |
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* Build the metadata for each field in an entity based on the Attribute\Association |
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*/ |
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private function buildMetadataForAssociations( |
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ReflectionClass $reflectionClass, |
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): void { |
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// Fetch attributes for associations |
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$associationNames = $this->entityManager->getMetadataFactory() |
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->getMetadataFor($reflectionClass->getName()) |
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->getAssociationNames(); |
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foreach ($associationNames as $associationName) { |
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$associationInstance = null; |
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$reflectionAssociation = $reflectionClass->getProperty($associationName); |
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foreach ($reflectionAssociation->getAttributes(Attribute\Association::class) as $attribute) { |
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$instance = $attribute->newInstance(); |
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// Only process attributes for the same group |
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if ($instance->getGroup() !== $this->config->getGroup()) { |
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continue; |
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} |
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// Only one matching instance per group is allowed |
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assert( |
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! $associationInstance, |
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'Duplicate attribute found for association ' |
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. $associationName . ', group ' . $instance->getGroup(), |
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); |
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$associationInstance = $instance; |
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$associationMetadata = [ |
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'limit' => $instance->getLimit(), |
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'description' => $instance->getDescription(), |
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'excludeFilters' => Filters::toStringArray($instance->getExcludeFilters()), |
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'criteriaEventName' => $instance->getCriteriaEventName(), |
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'hydratorStrategy' => $instance->getHydratorStrategy() ?? |
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Strategy\AssociationDefault::class, |
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]; |
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$this->metadata[$reflectionClass->getName()]['fields'][$associationName] = $associationMetadata; |
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} |
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} |
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} |
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} |
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API-Skeletons /
doctrine-orm-graphql
