I'm trying to find a code that will give me the discount amount for the current session order when I discount code is used.
Here is what I have right now but it is not working:
$coupon = Mage::getModel('salesrule/rule');
$couponCollection = $coupon->getCollection();
foreach($couponCollection as $c){
$CouponDiscount = $c->getDiscountAmount();
}
echo $CouponDiscount;
How can I get the amount of the discount used in the current session order ?