public function RelationshipItem::__construct in JSON:API 8

Relationship item constructor.

Parameters

\Drupal\jsonapi\ResourceType\ResourceTypeRepositoryInterface $resource_type_repository: The JSON API resource type repository.

\Drupal\Core\Entity\EntityInterface|null $target_entity: The entity this relationship points to, if any.

\Drupal\jsonapi\Normalizer\Relationship $parent: The parent of this item.

string $target_key: The key name of the target relationship.

array $metadata: The list of metadata associated with this relationship item value.

File

src/Normalizer/RelationshipItem.php, line 64

Class

RelationshipItem

Value object representing a JSON API relationship item.

Namespace

Drupal\jsonapi\Normalizer

Code

public function __construct(ResourceTypeRepositoryInterface $resource_type_repository, $target_entity, Relationship $parent, $target_key = 'target_id', array $metadata = []) {
  assert($target_entity === NULL || $target_entity instanceof EntityInterface);
  if ($target_entity === NULL) {
    $host_entity = $parent
      ->getHostEntity();
    $relatable_resource_types = $resource_type_repository
      ->get($host_entity
      ->getEntityTypeId(), $host_entity
      ->bundle())
      ->getRelatableResourceTypes()[$parent
      ->getPropertyName()];
    if (count($relatable_resource_types) !== 1) {
      throw new \RuntimeException('Relationships to virtual resources are possible only if a single resource type is relatable.');
    }
    $this->targetResourceType = reset($relatable_resource_types);
  }
  else {
    $this->targetResourceType = $resource_type_repository
      ->get($target_entity
      ->getEntityTypeId(), $target_entity
      ->bundle());
  }
  $this->targetKey = $target_key;
  $this->targetEntity = $target_entity;
  $this->parent = $parent;
  $this->metadata = $metadata;
}