public function addDiscGroup()
    {
        $config = \OxidEsales\Eshop\Core\Registry::getConfig();
        $groupIds = $this->_getActionIds('oxgroups.oxid');
        $discountId = $config->getRequestParameter('synchoxid');

        if ($config->getRequestParameter('all')) {
            $groupTable = $this->_getViewName('oxgroups');
            $groupIds = $this->_getAll($this->_addFilter("select $groupTable.oxid " . $this->_getQuery()));
        }
        if ($discountId && $discountId != self::NEW_DISCOUNT_ID && is_array($groupIds)) {
            foreach ($groupIds as $groupId) {
                $object2Discount = oxNew(\OxidEsales\Eshop\Core\Model\BaseModel::class);
                $object2Discount->init('oxobject2discount');
                $object2Discount->oxobject2discount__oxdiscountid = new \OxidEsales\Eshop\Core\Field($discountId);
                $object2Discount->oxobject2discount__oxobjectid = new \OxidEsales\Eshop\Core\Field($groupId);
                $object2Discount->oxobject2discount__oxtype = new \OxidEsales\Eshop\Core\Field("oxgroups");
                $object2Discount->save();
            }
        }
    }