CiviCRM Community Forums (archive)

I'm not sure if this will be true of all forms, or just CRM_Contact_Form_CustomData.  But take this example:

/**
 * Implementation of hook_civicrm_buildForm
 *
 * @param string $form_id
 * @param object $form
 */
function oa_custom_civicrm_buildForm($form_id, &$form) {
  drupal_set_message('$form_id: <pre>'. var_export($form_id, true) .'</pre>');
  switch ($form_id) {
    case 'CRM_Contact_Form_CustomData':
     
      // This form shows up on multiple pages.
      if ($_REQUEST['groupId'] == 3) {

        // Add the core field "Source" to this form.
        require_once('packages/HTML/QuickForm/text.php');
        $field = new HTML_QuickForm_text('source', 'Source');
        $form->_elements[] = $field;

        // So far so good.  But now we need to also add an element to CRM_Contact_Form_CustomData->_groupTree
        // so that the element gets printed to the page. 
        // Ack, but we can't since _groupTree is protected!
 
        drupal_set_message(CRM_Core_Error::debug('hook_civicrm_buildForm', $form, false));
      }
       
      break;
  }
}

Or am I going about this all wrong?

I dont think u need to add the below form element to $form->_groupTree.

In addition to the below, you will also need to customize the template and add the 'source' field to the layout where appropriate. You probably want to make this conditional on a specific form to which u are adding (unless u want it added to all CustomData)

note that we reuse form code/templates quite a bit, so some forms like the below will appear in multiple places

You can also write the below code as

$form->addElement( 'text', 'source', ts( 'Source' ) );

lobo