Try an new approach to extending forms. Create an extend_form event. For the first attempt replace the comment_add_form and item_add_form events.

1 files changed, 11 insertions, 7 deletions

diff --git a/modules/tag/helpers/tag_event.php b/modules/tag/helpers/tag_event.php
index 57986e40..cc134766 100644
--- a/modules/tag/helpers/tag_event.php
+++ b/modules/tag/helpers/tag_event.php
@@ -64,16 +64,20 @@ class tag_event_Core {
     tag::compact();
   }
 
-  static function item_edit_form($item, $form) {
-    $url = url::site("tags/autocomplete");
-    $form->script("")
-      ->text("$('form input[id=tags]').ready(function() {
+  static function extend_form($event_data) {
+    if (in_array($event_data->id,
+                 array("g-edit-album-form", "g-edit-movie-form", "g-edit-photo-form"))) {
+      $url = url::site("tags/autocomplete");
+      $event_data->form->script("")
+        ->text("$('form input[id=tags]').ready(function() {
                 $('form input[id=tags]').autocomplete(
                   '$url', {max: 30, multiple: true, multipleSeparator: ',', cacheLength: 1});
               });");
-    $tag_value = implode(", ", tag::item_tags($item));
-    $form->edit_item->input("tags")->label(t("Tags (comma separated)"))
-      ->value($tag_value);
+      $tag_value = implode(", ", tag::item_tags($event_data->data));
+      $input = empty($event_data->append_to) ? $event_data->form : $event_data->append_to;
+      $input->input("tags")->label(t("Tags (comma separated)"))
+        ->value($tag_value);
+    }
   }
 
   static function item_edit_form_completed($item, $form) {