private function reindex($navItemPageId, $placeholderVar, $prevId)
    {
        $index = 0;
        $datas = self::originalFind()->andWhere(['nav_item_page_id' => $navItemPageId, 'placeholder_var' => $placeholderVar, 'prev_id' => $prevId])->orderBy(['sort_index' => SORT_ASC, 'timestamp_create' => SORT_DESC])->all();
        foreach ($datas as $item) {
            Yii::$app->db->createCommand()->update(self::tableName(), ['sort_index' => $index], ['id' => $item->id])->execute();
            ++$index;
        }
    }