public function getAddSum()
    {
        if ($this->oxdiscount__oxaddsumtype->value == 'abs') {
            $oCur = \OxidEsales\Eshop\Core\Registry::getConfig()->getActShopCurrencyObject();

            return $this->oxdiscount__oxaddsum->value * $oCur->rate;
        } else {
            return $this->oxdiscount__oxaddsum->value;
        }
    }