public function role_manage($model, RM_User_Services $service, $request, $params)
 {
     $roles = $service->get_roles_by_status();
     // To remove existing errors from the form
     if (!isset($request->req['rm_submitted'])) {
         $this->mv_handler->clearFormErrors("rm_user_role_add_form");
     }
     $view_data = new stdClass();
     $view_data->roles = $roles;
     $view = $this->mv_handler->setView('user_roles_manager');
     $view->render($view_data);
 }