CiviCRM Community Forums (archive)

When creating a custom field of type CheckBox, it would be great if, in addition to specifying, for each option, whether to make the option value 'selected' by default, you could specify whether to make the option value 'selected' if PHP code also specified returned true.  A simple example (maybe this is all that is needed) would be $_GET['foo']=='bar'.

I am a first-time CiviCRM user and just set up a Drupal site (www.bookwish.org) where I created a "Donation Earmark" CheckBox field for my CiviContribute contribution page.  I wanted the default earmark to depend on what link the user followed to arrive at the contribution page.  So, if he was reading about library construction in a refugee camp and clicked the inline donation link on that page, I wanted the "library construction" field of the contribution page to be checked by default.  The easiest solution I could find was modifying CRM > UF > Form > Block.tpl with some search-and-replace smarty code.  Perhaps, as a new user, I have missed an easier approach?  If not, please consider adding this functionality for CheckBox and other fields where it makes sense.

This is now filed and fixed at: http://issues.civicrm.org/jira/browse/CRM-3176

i chose the option of implementing it as a hook. this gives the user more flexibility of how/when to set the defaults based on the input and/or the database state