public static function generateCoupons($deal, $couponsQty)
 {
     $couponsCount = Mage::getModel('collpur/coupon')->getCollection()->addFieldToFilter('deal_id', $deal->getId())->getSize();
     for ($i = $couponsCount; $i < $couponsQty + $couponsCount; $i++) {
         $coupon = new self();
         $coupon->generateCoupon($deal, $i);
     }
     if ($deal->getIsSuccess() && $deal->getIsSuccessedFlag()) {
         AW_Collpur_Model_Cron::_processSuccessedDeals();
     }
 }