protected function _setOrderStatus($sStatus)
    {
        $oDb = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();
        $sQ = 'update oxorder set oxtransstatus=' . $oDb->quote($sStatus) . ' where oxid=' . $oDb->quote($this->getId());
        $oDb->execute($sQ);

        //updating order object
        $this->oxorder__oxtransstatus = new \OxidEsales\Eshop\Core\Field($sStatus, \OxidEsales\Eshop\Core\Field::T_RAW);
    }