I am trying to create a session variable that I can pass to the checkout in Magento 1.9.
Its basically to pass coupons automatically to the checkout for certain pages, I have the add coupon working but can't seem to pass a coupon code correctly.
I have tried the following:
Simply add ?coupon_code=$coupon to the string, but this seems to get stripped possibly due to url rewrites for languages.
$session = Mage::getSingleton("core/session", array("name"=>"frontend")); //load session variables
$session->setData("data", $coupon); //save your data in custom session variable
but when I try to get this session in the cart it fails to find anything.
Can someone point me in the right direction for what I am doing wrong?
Please use 'checkout/session' instead of core/session