CiviCRM Community Forums (archive)

I am working in Drupal 6 Civi 3.0.2 and while hook_civicrm_buildForm works fine I don't see hook_civicrm_buildAmount being called when I visit an event registration page.

I am trying to build a feature akin to the "Event discounts / coupons for event registration" post: http://civicrm.org/node/566 but it requires that hook.

If it indeed is not working, then I will use hook_civicrm_buildForm and attempt to manually adjust the prices.

I furthermore, however, need to account for PayPal as the payment processor, in the offsite mode. Clearly when one clicks on the PayPal button, the request goes to CiviCRM and then the user is redirected to paypal.com. So ideally I would want to hook into that process and examine the discount code and then actually do one of two things:

1. If it's valid, then make the price zero, as these coupons are for 100% off. In that case, the user wouldn't need to go to PayPal at all.

2. If it's invalid, I think the best would be to return the user to the page to allow him the opportunity to re-enter his code.

It may be easier to simply add a form on the event info page--the user can then enter his discount code there and then all processing can be handled by hook_civicrm_buildForm.

Any feedback on this is appreciated.

Thanks.

Are you using price-sets ? since the buildAmount() hook doesn't work for price-sets.

That was it. Without price sets, it works fine.

If you can adjust / make price to zero (via discounting method or any other), civicrm would take care of that.

Yes, this also works perfectly. Thank you.

However, the issue now is that the discount awarded is 100%, but the site requires the user to enter his credit card number to proceed. On the following page, he is not charged anything because the amount has been reduced to zero, but he can't get there without entering a CC number.

Seems to be a bit of a quandary...