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annotate core/modules/serialization/src/EntityResolver/UuidResolver.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 129ea1e6d783 |
children |
rev | line source |
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Chris@0 | 1 <?php |
Chris@0 | 2 |
Chris@0 | 3 namespace Drupal\serialization\EntityResolver; |
Chris@0 | 4 |
Chris@17 | 5 use Drupal\Core\Entity\EntityRepositoryInterface; |
Chris@0 | 6 use Symfony\Component\Serializer\Normalizer\NormalizerInterface; |
Chris@0 | 7 |
Chris@0 | 8 /** |
Chris@0 | 9 * Resolves entities from data that contains an entity UUID. |
Chris@0 | 10 */ |
Chris@0 | 11 class UuidResolver implements EntityResolverInterface { |
Chris@0 | 12 |
Chris@0 | 13 /** |
Chris@17 | 14 * The entity repository. |
Chris@0 | 15 * |
Chris@17 | 16 * @var \Drupal\Core\Entity\EntityRepositoryInterface |
Chris@0 | 17 */ |
Chris@17 | 18 protected $entityRepository; |
Chris@0 | 19 |
Chris@0 | 20 /** |
Chris@0 | 21 * Constructs a UuidResolver object. |
Chris@0 | 22 * |
Chris@17 | 23 * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository |
Chris@17 | 24 * The entity repository. |
Chris@0 | 25 */ |
Chris@17 | 26 public function __construct(EntityRepositoryInterface $entity_repository) { |
Chris@17 | 27 $this->entityRepository = $entity_repository; |
Chris@0 | 28 } |
Chris@0 | 29 |
Chris@0 | 30 /** |
Chris@0 | 31 * {@inheritdoc} |
Chris@0 | 32 */ |
Chris@0 | 33 public function resolve(NormalizerInterface $normalizer, $data, $entity_type) { |
Chris@0 | 34 // The normalizer is what knows the specification of the data being |
Chris@0 | 35 // deserialized. If it can return a UUID from that data, and if there's an |
Chris@0 | 36 // entity with that UUID, then return its ID. |
Chris@0 | 37 if (($normalizer instanceof UuidReferenceInterface) && ($uuid = $normalizer->getUuid($data))) { |
Chris@17 | 38 if ($entity = $this->entityRepository->loadEntityByUuid($entity_type, $uuid)) { |
Chris@0 | 39 return $entity->id(); |
Chris@0 | 40 } |
Chris@0 | 41 } |
Chris@0 | 42 return NULL; |
Chris@0 | 43 } |
Chris@0 | 44 |
Chris@0 | 45 } |