public function getDiscountId($appliedRuleIds)
    {
        $cfg = Mage::helper('radial_core')->getConfigModel();
        $ids = explode(',', $appliedRuleIds);
        $ruleId = !empty($ids)?$ids[0]: 0;
        return sprintf('%.12s', $cfg->storeId . '-' . $ruleId);
    }