/**
  * Add commands that attach objects to the entry.
  * @param JOB $entry
  * @param PROJECT $folder Entry is in this folder (also available as $entry-
  * >parent_folder ()).
  * @param USER $creator Folder belongs to this user (also available as $folder->creator ()).
  * @access private
  */
 protected function _add_creators($entry)
 {
     parent::_add_creators($entry);
     $folder_id = $entry->parent_folder_id();
     $cmd = $this->make_command();
     $cmd->id = 'new_change';
     $cmd->caption = 'Add change';
     $cmd->link = "create_change.php?id={$folder_id}&job_id={$entry->id}";
     $cmd->icon = '{app_icons}buttons/new_change';
     $cmd->executable = $this->login->is_allowed(Privilege_set_entry, Privilege_create, $entry);
     $this->append($cmd);
 }