diff core/modules/jsonapi/src/JsonApiResource/LabelOnlyResourceObject.php @ 18:af1871eacc83

Update to Drupal core 8.7.1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/jsonapi/src/JsonApiResource/LabelOnlyResourceObject.php	Thu May 09 15:33:08 2019 +0100
@@ -0,0 +1,72 @@
+<?php
+
+namespace Drupal\jsonapi\JsonApiResource;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\RevisionableInterface;
+use Drupal\jsonapi\ResourceType\ResourceType;
+
+/**
+ * Value object decorating a ResourceObject; only its label is available.
+ *
+ * @internal JSON:API maintains no PHP API. The API is the HTTP API. This class
+ *   may change at any time and could break any dependencies on it.
+ *
+ * @see https://www.drupal.org/project/jsonapi/issues/3032787
+ * @see jsonapi.api.php
+ */
+final class LabelOnlyResourceObject extends ResourceObject {
+
+  /**
+   * The entity represented by this resource object.
+   *
+   * @var \Drupal\Core\Entity\EntityInterface
+   */
+  protected $entity;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function createFromEntity(ResourceType $resource_type, EntityInterface $entity, LinkCollection $links = NULL) {
+    $resource_object = new static(
+      $entity,
+      $resource_type,
+      $entity->uuid(),
+      $resource_type->isVersionable() && $entity instanceof RevisionableInterface ? $entity->getRevisionId() : NULL,
+      static::extractFieldsFromEntity($resource_type, $entity),
+      static::buildLinksFromEntity($resource_type, $entity, $links ?: new LinkCollection([]))
+    );
+    $resource_object->setEntity($entity);
+    return $resource_object;
+  }
+
+  /**
+   * Gets the decorated entity.
+   *
+   * @return \Drupal\Core\Entity\EntityInterface
+   *   The label for which to only normalize its label.
+   */
+  public function getEntity() {
+    return $this->entity;
+  }
+
+  /**
+   * Sets the underlying entity.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   An entity.
+   */
+  protected function setEntity(EntityInterface $entity) {
+    $this->entity = $entity;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static function extractFieldsFromEntity(ResourceType $resource_type, EntityInterface $entity) {
+    $fields = parent::extractFieldsFromEntity($resource_type, $entity);
+    $public_label_field_name = $resource_type->getPublicName(static::getLabelFieldName($entity));
+    return array_intersect_key($fields, [$public_label_field_name => TRUE]);
+  }
+
+}