class FilterFormatStorageController

class FilterFormatStorageController extends ConfigStorageController {

  /**
   * Overrides \Drupal\Core\Config\Entity\ConfigStorageController::preSave().
   */
  protected function preSave(EntityInterface $entity) {
    parent::preSave($entity);
    $entity->name = trim($entity
      ->label());

    // @todo Do not save disabled filters whose properties are identical to
    //   all default properties.
    // Determine whether the format can be cached.
    // @todo This is a derived/computed definition, not configuration.
    $entity->cache = TRUE;
    foreach ($entity
      ->filters() as $filter) {
      if ($filter->status && !$filter->cache) {
        $entity->cache = FALSE;
      }
    }
  }

  /**
   * Overrides \Drupal\Core\Config\Entity\ConfigStorageController::postSave().
   */
  protected function postSave(EntityInterface $entity, $update) {
    parent::postSave($entity, $update);

    // Clear the static caches of filter_formats() and others.
    filter_formats_reset();
    if ($update) {

      // Clear the filter cache whenever a text format is updated.
      cache('filter')
        ->deleteTags(array(
        'filter_format' => $entity
          ->id(),
      ));
    }
    else {

      // Default configuration of modules and installation profiles is allowed
      // to specify a list of user roles to grant access to for the new format;
      // apply the defined user role permissions when a new format is inserted
      // and has a non-empty $roles property.
      // Note: user_role_change_permissions() triggers a call chain back into
      // filter_permission() and lastly filter_formats(), so its cache must be
      // reset upfront.
      if (($roles = $entity
        ->get('roles')) && ($permission = filter_permission_name($entity))) {
        foreach (user_roles() as $rid => $name) {
          $enabled = in_array($rid, $roles, TRUE);
          user_role_change_permissions($rid, array(
            $permission => $enabled,
          ));
        }
      }
    }
  }

}