public function newUserModule($id)
 {
     $model = new sUserModule();
     if (isset($_POST['sUserModule'])) {
         $model->attributes = $_POST['sUserModule'];
         if (is_array(@$_POST['sUserModule']['s_module_id'])) {
             foreach ($_POST['sUserModule']['s_module_id'] as $item) {
                 $model = new sUserModule();
                 $model->s_user_id = $id;
                 $model->s_module_id = $item;
                 $model->s_matrix_id = $_POST['sUserModule']['s_matrix_id'];
                 $model->save();
             }
             $this->refresh();
         }
     }
     return $model;
 }