Missing submit handling and validation (skipping?) in AHAH Examples

Well here's a small fix for disabling validations, after going through the AHAH helper module I managed to make a quick tweak that works. :)

ALL you need is the, skip_validations module and use the function "_skip_validation_skip_validation($form, 'full');"
to skip all validations on the AHAH components, and not affect the whole form.

function metadata_research_ahah() {
  include_once drupal_get_path('module', 'node') . '/node.pages.inc';
  $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['#programmed'] = $form['#redirect'] = FALSE;

  //Skips validations for the AHAH submit values, put it in your callback function.
  _skip_validation_skip_validation($form, 'full');
  
  drupal_process_form($form_id, $form, $form_state);
  $form = drupal_rebuild_form($form_id, $form_state, $args, $form_build_id);

  $changed_elements = $form['groups']['research_wrapper'];
  unset($changed_elements['#prefix'], $changed_elements['#suffix']); // Prevent duplicate wrappers.
  drupal_json(array(
    'status'   => TRUE,
    'data'     => theme('status_messages') . drupal_render($changed_elements),
  ));
}

You could write your own function to skip validation and not have to worry about using another module.

//quick example from AHAH_helper module, doesn't work for hook_validate validations tho, just the required.

function _ahah_helper_disable_validation(&$form) {
  foreach (element_children($form) as $child) {
    $form[$child]['#validated'] = TRUE;
    _ahah_helper_disable_validation(&$form[$child]);
  }
}