? filefield_ahah_hook_alter.patch
Index: filefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/filefield.module,v
retrieving revision 1.203
diff -u -p -r1.203 filefield.module
--- filefield.module	3 Jul 2009 20:53:07 -0000	1.203
+++ filefield.module	9 Sep 2009 08:43:30 -0000
@@ -504,9 +504,23 @@ function filefield_js($type_name, $field
   // don't need to call form_set_cache().
   $args = $form['#parameters'];
   $form_id = array_shift($args);
-  $form['#post'] = $_POST;
-  $form = form_builder($form_id, $form, $form_state);
-
+  $form_state['post'] = $form['#post'] = $_POST;
+  $form['#programmed'] = $form['#redirect'] = FALSE;
+  $form_state['submitted'] = TRUE;
+  
+  // For the default "{$form_id}_validate" and "{$form_id}_submit" handlers.
+  $form['#validate'] = NULL;
+  $form['#submit'] = NULL;
+  // For customly set #validate and #submit handlers.
+  $form_state['submit_handlers'] = NULL;
+  $form_state['validate_handlers'] = NULL;
+  // Disable #required and #element_validate validation.
+  _filefield_js_disable_validation($form);
+  
+  
+  drupal_process_form($form_id, $form, $form_state);
+  $form = drupal_rebuild_form($form_id, $form_state, $args, $form_build_id);
+  
   // Update the cached form with the new element at the right place in the form.
   if (module_exists('fieldgroup') && ($group_name = _fieldgroup_field_get_group($type_name, $field_name))) {
     if (isset($form['#multigroups']) && isset($form['#multigroups'][$group_name][$field_name])) {
@@ -519,7 +533,7 @@ function filefield_js($type_name, $field
   else {
     $form_element = $form[$field_name][$delta];
   }
-
+  
   if (isset($form_element['_weight'])) {
     unset($form_element['_weight']);
   }
@@ -559,6 +573,13 @@ function filefield_js($type_name, $field
   exit;
 }
 
+function _filefield_js_disable_validation(&$form) {
+  foreach (element_children($form) as $child) {
+    $form[$child]['#validated'] = TRUE;
+    _filefield_js_disable_validation(&$form[$child]);
+  }
+}
+
 /**
  * Menu callback for upload progress.
  */