class EntityTestReferenceCustomCacheTagFormatter

Plugin implementation of the 'entity_reference_custom_cache_tag' formatter.

Plugin annotation

@FieldFormatter(
  id = "entity_reference_custom_cache_tag",
  label = @Translation("Custom cache tag"),
  field_types = {
    "entity_reference"
  }
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait extends \Drupal\Component\Plugin\PluginBase
    • class \Drupal\Core\Field\PluginSettingsBase implements \Drupal\Core\Field\PluginSettingsInterface, \Drupal\Component\Plugin\DependentPluginInterface extends \Drupal\Core\Plugin\PluginBase
      • class \Drupal\Core\Field\FormatterBase implements \Drupal\Core\Field\FormatterInterface, \Drupal\Core\Plugin\ContainerFactoryPluginInterface extends \Drupal\Core\Field\PluginSettingsBase
        • class \Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase extends \Drupal\Core\Field\FormatterBase
          • class \Drupal\entity_test\Plugin\Field\FieldFormatter\EntityTestReferenceCustomCacheTagFormatter extends \Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase

Expanded class hierarchy of EntityTestReferenceCustomCacheTagFormatter

File

core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldFormatter/EntityTestReferenceCustomCacheTagFormatter.php, line 19

Namespace

class EntityTestReferenceCustomCacheTagFormatter extends EntityReferenceFormatterBase {
  
  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    return [
      '#cache' => [
        'tags' => [
          'custom_cache_tag',
        ],
      ],
    ];
  }

}

Members