public function index_onDelete()
 {
     $areaIds = post('checked');
     if ($areaIds && is_array($areaIds) && count($areaIds)) {
         foreach ($areaIds as $areaId) {
             if (!($area = AreaModel::find($areaId))) {
                 continue;
             }
             //$area->delete();
         }
         Flash::success('Areas deleted.');
     }
     return $this->listRefresh();
 }