CiviCRM Community Forums (archive)

I have a Drupal module using hook_civicrm_buildAmount that basically checks some rules and unsets some of the available options in the membership_amount part of the $amount array.
After unsetting some of the options I want to make sure that one of the radio buttons is checked by default so I run through and choose a default according to some rules and fall back to the first option if no rule matches. I have a situation where there is only one remaining option. Just before exiting  hook_buildAmount I print $amount with dpm and the options sub-array contains the contents shown below but the one remaining checkbox is not checked on the renewal page.

options (Array, 1 element)
111 (Array, 9 elements)
id (String, 3 characters ) 111
price_field_id (String, 2 characters ) 50
name (String, 10 characters ) My_Membership
label (String, 10 characters ) My Membership
amount (String, 5 characters ) 90.00
weight (String, 2 characters ) 13
membership_type_id (String, 2 characters ) 27
is_default (String, 1 characters ) 1
is_active (String, 1 characters ) 1

I guess I will need to dig a bit deeper into where the hook is called unless this is known restriction in the hook.

Hi Kurund,
No, I was hoping I could do it all in hook_buildAmount. It would seem logical that if you can change the amounts here you can also change the default value. I guess you are saying I need to implement hook_buildForm as well to set the defaults?

Thanks Kurund!

You are right, using setDefaults works in either function. There's a spot where the docs recommend setting defaults in hook_civicrm_buildForm. Doesn't mean it's the only place it works right?

I also took a closer look and those is_default values on the price field options are used before hook_civicrm_buildAmount is called so changing them there has no effect - too bad but problem solved anyway. The drupal sample is very helpful.