/**
  * Delete ContentTemplateWidget
  *
  * @inheritdoc
  */
 public function afterDelete()
 {
     ContentTemplateWidget::deleteIfExists(['widget_class' => self::WIDGET_CLASS, 'code' => md5(__CLASS__ . '_' . $this->id)]);
     TagDependency::invalidate(Yii::$app->cache, ContentModule::CACHE_TAG);
     parent::afterDelete();
 }