public function EntityLanguage::onCalculateDependencies in Dependency Calculation 8

Calculates the language of content entities.

Parameters

\Drupal\depcalc\Event\CalculateEntityDependenciesEvent $event: The dependency calculation event.

Throws

\Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException

\Drupal\Component\Plugin\Exception\PluginNotFoundException

File

src/EventSubscriber/DependencyCollector/EntityLanguage.php, line 53

Class

EntityLanguage

Class EntityLanguage.

Namespace

Drupal\depcalc\EventSubscriber\DependencyCollector

Code

public function onCalculateDependencies(CalculateEntityDependenciesEvent $event) {
  if (!$this->moduleHandler
    ->moduleExists('language')) {
    return;
  }

  // @Todo figure out the content translation settings for the entity/bundle.
  $entity = $event
    ->getEntity();
  if ($entity instanceof ContentEntityInterface && $entity instanceof TranslatableInterface) {
    $fields = FieldExtractor::getFieldsFromEntity($entity, function (ContentEntityInterface $entity, $field_name, FieldItemListInterface $field) {
      return $field
        ->getFieldDefinition()
        ->getType() == 'language';
    });
    foreach ($fields as $field) {

      /** @var \Drupal\language\Entity\ContentLanguageSettings $settings */
      $settings = \Drupal::entityTypeManager()
        ->getStorage('language_content_settings')
        ->load("{$entity->getEntityTypeId()}.{$entity->bundle()}");
      if (!$settings || !$settings
        ->status() || !$settings
        ->isLanguageAlterable()) {
        return;
      }
      $settings_wrapper = new DependentEntityWrapper($settings);
      $local_dependencies = [];
      $this
        ->mergeDependencies($settings_wrapper, $event
        ->getStack(), $this
        ->getCalculator()
        ->calculateDependencies($settings_wrapper, $event
        ->getStack(), $local_dependencies));
      $event
        ->addDependency($settings_wrapper);
      foreach ($entity
        ->getTranslationLanguages() as $language) {
        $language_entity = \Drupal::entityTypeManager()
          ->getStorage('configurable_language')
          ->load($language
          ->getId());
        $language_entity_wrapper = new DependentEntityWrapper($language_entity);
        $language_entity_wrapper
          ->addModuleDependencies([
          'language',
        ]);
        $local_dependencies = [];
        $this
          ->mergeDependencies($language_entity_wrapper, $event
          ->getStack(), $this
          ->getCalculator()
          ->calculateDependencies($language_entity_wrapper, $event
          ->getStack(), $local_dependencies));
        $event
          ->addDependency($language_entity_wrapper);
      }
    }
  }
}