QuickEditController::metadata

public QuickEditController::metadata(Request $request)

public function metadata(Request $request) {
  $fields = $request->request->get('fields');
  if (!isset($fields)) {
    throw new NotFoundHttpException();
  }
  $entities = $request->request->get('entities');

  $metadata = array();
  foreach ($fields as $field) {
    list($entity_type, $entity_id, $field_name, $langcode, $view_mode) = explode('/', $field);

    // Load the entity.
    if (!$entity_type || !$this->entityManager()->getDefinition($entity_type)) {
      throw new NotFoundHttpException();
    }
    $entity = $this->entityManager()->getStorage($entity_type)->load($entity_id);
    if (!$entity) {
      throw new NotFoundHttpException();
    }

    // Validate the field name and language.
    if (!$field_name || !$entity->hasField($field_name)) {
      throw new NotFoundHttpException();
    }
    if (!$langcode || !$entity->hasTranslation($langcode)) {
      throw new NotFoundHttpException();
    }

    $entity = $entity->getTranslation($langcode);

    // If the entity information for this field is requested, include it.
    $entity_id = $entity->getEntityTypeId() . '/' . $entity_id;
    if (is_array($entities) && in_array($entity_id, $entities) && !isset($metadata[$entity_id])) {
      $metadata[$entity_id] = $this->metadataGenerator->generateEntityMetadata($entity);
    }

    $metadata[$field] = $this->metadataGenerator->generateFieldMetadata($entity->get($field_name), $view_mode);
  }

  return new JsonResponse($metadata);
}