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Percentage discount for a specific item in cart

Thread began 2/28/2014 11:34 am by acornist | Last modified 2/28/2014 3:22 pm by acornist | 584 views | 9 replies

acornistBeta Tester

Percentage discount for a specific item in cart

I'm sure it's something stupid, but for the life of me I can't spot what I'm doing wrong.

I have to put in a discount rule that allows the customer to apply a coupon for a given percentage off on one item with a specific ProductID.

I set up database-driven coupons for flat-rate and percentage off (they work great), but adapting them for specific products doesn't seem to work for me.

I have session variables in place for the coupon's PromoProduct, PromoAmount and PromoType, and the correct values are showing. I also have a column in the eCart object for ProductID.

This is the rule that appears in eCart1.php:

function WAEC_eCart1_PercentageOffProduct() {
$totalDiscount = 0;
if (true && ((sizeof($this->Items) > 0) && (isset($_SESSION['PromoCode'])) && (isset($_SESSION['PromoAmount'])) && (isset($_SESSION['PromoProduct'])) && ((isset($_SESSION['PromoPSpecific'])?$_SESSION['PromoPSpecific']:"") == "product") && ($this->ConditionalTotal("Quantity", "ProductID", "".$_SESSION['PromoProduct'] ."") > 0))) {
$totalDiscount += (floatval($this->GetInfo("".$_SESSION['PromoProduct'] ."", "Price")) * ($_SESSION['PromoAmount'] / 100));//Result
return WA_eCart_FormatNumber($totalDiscount, $this->ForceDecimalsC, $this->DecimalPlacesC);

I've confirmed that all the session variables, the eCart columns, and the discount calculation are returning the expected values.

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