protected function deleteStaticUrlFromDb($staticUrlId)
    {
        // active shop id
        $shopId = $this->getEditObjectId();
        $db = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();
        $db->execute("delete from oxseo where oxtype='static' and oxobjectid = " . $db->quote($staticUrlId) . " and oxshopid = " . $db->quote($shopId));
    }