class EntityReference in Entity Usage 8.4

Tracks usage of entities related in entity_reference fields.

Plugin annotation

@EntityTrack(
  id = "entity_reference",
  label = @Translation("Entity Reference"),
  description = @Translation("Tracks relationships created with 'Entity Reference' fields."),
  field_types = {"entity_reference", "entity_reference_revisions"},
)

Hierarchy

• class \Drupal\entity_usage\EntityUsageBase extends \Drupal\entity_track\EntityTrackBase
  • class \Drupal\entity_usage\Plugin\EntityTrack\Track\EntityReference

File

src/Plugin/EntityTrack/Track/EntityReference.php, line 18

Namespace

Drupal\entity_usage\Plugin\EntityTrack\Track

class EntityReference extends EntityUsageBase {

  /**
   * {@inheritdoc}
   */
  public function getTargetEntities(FieldItemInterface $item) {

    /** @var \Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem $item */
    $item_value = $item
      ->getValue();
    if (empty($item_value['target_id'])) {
      return [];
    }
    $target_type = $item
      ->getFieldDefinition()
      ->getSetting('target_type');

    // Only return a valid result if the target entity exists.
    if (!$this->entityTypeManager
      ->getStorage($target_type)
      ->load($item_value['target_id'])) {
      return [];
    }
    return [
      $target_type . '|' . $item_value['target_id'],
    ];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
EntityReference::getTargetEntities	public	function	Retrieve the target entity(ies) from a field item value. Overrides EntityUsageBase::getTargetEntities
EntityUsageBase::$entityRepository	protected	property	The EntityRepository service.
EntityUsageBase::$usageConfig	protected	property	The usage config.
EntityUsageBase::$usageService	protected	property	The usage tracking service.
EntityUsageBase::create	public static	function		2
EntityUsageBase::trackOnEntityCreation	public	function
EntityUsageBase::trackOnEntityDelete	public	function
EntityUsageBase::trackOnEntityUpdate	public	function
EntityUsageBase::__construct	public	function	Plugin constructor.	2