class UuidResolver in Drupal 8

Resolves entities from data that contains an entity UUID.

Hierarchy

• class \Drupal\serialization\EntityResolver\UuidResolver implements EntityResolverInterface

1 file declares its use of UuidResolver

UuidResolverTest.php in core/modules/serialization/tests/src/Unit/EntityResolver/UuidResolverTest.php

1 string reference to 'UuidResolver'

serialization.services.yml in core/modules/serialization/serialization.services.yml

core/modules/serialization/serialization.services.yml

1 service uses UuidResolver

serializer.entity_resolver.uuid in core/modules/serialization/serialization.services.yml

Drupal\serialization\EntityResolver\UuidResolver

File

core/modules/serialization/src/EntityResolver/UuidResolver.php, line 11

Namespace

Drupal\serialization\EntityResolver

class UuidResolver implements EntityResolverInterface {

  /**
   * The entity repository.
   *
   * @var \Drupal\Core\Entity\EntityRepositoryInterface
   */
  protected $entityRepository;

  /**
   * Constructs a UuidResolver object.
   *
   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
   *   The entity repository.
   */
  public function __construct(EntityRepositoryInterface $entity_repository) {
    $this->entityRepository = $entity_repository;
  }

  /**
   * {@inheritdoc}
   */
  public function resolve(NormalizerInterface $normalizer, $data, $entity_type) {

    // The normalizer is what knows the specification of the data being
    // deserialized. If it can return a UUID from that data, and if there's an
    // entity with that UUID, then return its ID.
    if ($normalizer instanceof UuidReferenceInterface && ($uuid = $normalizer
      ->getUuid($data))) {
      if ($entity = $this->entityRepository
        ->loadEntityByUuid($entity_type, $uuid)) {
        return $entity
          ->id();
      }
    }
    return NULL;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
UuidResolver::$entityRepository	protected	property	The entity repository.
UuidResolver::resolve	public	function	Returns the local ID of an entity referenced by serialized data. Overrides EntityResolverInterface::resolve
UuidResolver::__construct	public	function	Constructs a UuidResolver object.