Cannot Update Cart modal error in Virtuemart

socouture
6 years ago
0 +0 / -0

Hi,
When someone uses a coupon, we get the reduction no problem.
In our case its a gift certificate so the bill amount is 0€.
I created a fake payment method for this, as per your recommendations, but since the latest update (of awocoupon, or of VM 3.4.0, not sure...) it no longer works.
By this i mean that the shopper chooses the fake payment method and the following happens:
if Ajax for OPC is enabled, we get the 'waiting for www.socouture.fr message for a good 30 seconds, then a modal popup saying Cannot update cart.
If OPC Ajax is disabled, then the site returns a HTTP 500 error.

Unsure whether it is virtuemart or awocoupon that has the bug/problem, i'm trying here first as you have always been so good at replying to issues.
I can give you a backend access so you can try yourself, if if helps.
I have access to the webserver but i dont have enough knowledge to know where to look to see what could be causing this.
Any help you can provide would be greatly appreciated.
David
socouture
6 years ago
0 +0 / -0

It works only if setup this way:
1. i make the 'fake' payment method NOT have the maximum invoice total to be >0.01, and in doing so making it appear before the coupon code is entered
2. i choose it as the payment method BEFORE i enter the coupon code.

Otherwise, the problem persists.
It also happens with OPC disabled, once i hit the 'select payment method' screen.
seyi
6 years ago
0 +0 / -0

Hello,

I have been testing this over the last couple of days, and in my case I do not get a blank screen, but there is an issue where the payment method is never selected. In debugging, I find that there is some leakage when checking the payment methods. Let me explain, I setup these payment methods:
Standard:
       min_amount: 0.01
       max_amount: [blank]

Free Order:
       min_amount: [blank]
       max_amount: 0.01

In testing, I find that the free order payment method takes on properties of the standard payment method if it is not set. So in testing it sees this:

Free Order:
       min_amount: 0.01
       max_amount: 0.01

So the free order payment method is never available, and neither is the standard payment method, leaving the cart stuck, with no way to fully checkout. To combat this, I explicitly set the free order min_amount to 0:

Free Order:
       min_amount: 0
       max_amount: 0.01

And it all seems to work smoothly after that.

Regards
socouture
6 years ago
0 +0 / -0

hi,
setup as you suggest, it seems to work based on some quick testing. lets see if our users are OK with this now. i'll let you know but i think its good. maybe you could update your documentation on the 'fake payment method' to help others in future? Namaste !! thanks !!!!