public function run()
 {
     $query = Category::find();
     $query->andWhere([Category::tableName() . '.active' => 1]);
     if ($this->root_category_id !== null) {
         $query->andWhere([Category::tableName() . '.parent_id' => $this->root_category_id]);
     }
     if ($this->category_group_id !== null) {
         $query->andWhere([Category::tableName() . '.category_group_id' => $this->category_group_id]);
     }
     $query->groupBy(Category::tableName() . ".id");
     $query->orderBy($this->sort);
     if ($this->limit !== null) {
         $query->limit($this->limit);
     }
     $object = Object::getForClass(Category::className());
     \app\properties\PropertiesHelper::appendPropertiesFilters($object, $query, $this->values_by_property_id, []);
     $sql = $query->createCommand()->getRawSql();
     $cacheKey = "FilteredCategoriesWidget:" . md5($sql);
     $result = Yii::$app->cache->get($cacheKey);
     if ($result === false) {
         $categories = Category::findBySql($sql)->all();
         $result = $this->render($this->viewFile, ['categories' => $categories]);
         Yii::$app->cache->set($cacheKey, $result, 86400, new \yii\caching\TagDependency(['tags' => ActiveRecordHelper::getCommonTag(Category::tableName())]));
     }
     return $result;
 }