Re: [development] Searching for AHAH! instead of AHAH?

[jeff]

Almost there. I have the ahah appearing now by using #after_build. I 
guess from what I read that this had something to do with CCK fields 
(such as content profile fields) not cooperating with hook_form_alter 
due to timing.

My (hopefully) last hurdle is probably just a need for another pair of 
eyes. When the change event fires and the throbber spins, I get a 404 
error on the callback.

function test_menu() {
    $items = array();
    $items['test/change_value/callback'] = array(
        'page callback' => 'test_change_callback',
        'access callback' => TRUE,
        'type' => MENU_CALLBACK,
    );

    return $items;
}

function test_form_alter(&$form, &$form_state, $form_id) {
    if ($form_id == 'test_profile_node_form') {
        $form['field_result']['#prefix'] = '<div 
id="field-result-wrapper">';
        $form['field_result']['#suffix'] = '</div>';

      $form['#after_build'][] = 'test_add_ahah';
    }
}

function test_add_ahah($form, $form_state) {

   $ahah = array();

     $ahah['edit-field-test-value'] = array(
       'button' => false,
       'effect' => 'none',
       'event' => 'change',
       'keypress' => NULL,
       'method' => 'replace',
       'progress' => array('type' => 'throbber'),
       'selector' => '#edit-field-test-value',
       'url' => 'test/change_value/callback',
       'wrapper' => 'field-result-wrapper',
     );
   drupal_add_js(array('ahah' => $ahah), 'setting');


   return $form;
}

function test_callback_helper() {
  $form_state = array('storage' => NULL, 'submitted' => FALSE);
  $form_build_id = $_POST['form_build_id'];
  $form = form_get_cache($form_build_id, $form_state);
  $args = $form['#parameters'];
  $form_id = array_shift($args);
  $form_state['post'] = $form['#post'] = $_POST;
  $form_state['ahah_submission'] = TRUE;
  $form['#programmed'] = $form['#redirect'] = FALSE;
  drupal_process_form($form_id, $form, $form_state);
  $form = drupal_rebuild_form($form_id, $form_state, $args, 
$form_build_id);
  return $form;
}

function test_change_callback() {

    $form = test_callback_helper();
    $output= test_do_stuff();
    drupal_json(array('status' => TRUE, 'data' => $output));
    exit();
}