public function show($id)
 {
     parent::$_data['am'] = ActionMain::find($id);
     parent::$_data['am_detail'] = ActionMainDetail::where("id_am", "=", $id)->get();
     return view("action_maintenance.am_detail", parent::$_data);
 }
 private function _service()
 {
     $service = ActionMain::all();
     $res = [];
     foreach ($service as $item) {
         $detail_service = ActionMainDetail::where("id_am", "=", $item->id_actions)->get();
         $det = [];
         foreach ($detail_service as $val) {
             $det[$val->id_am_detail] = $val->nama;
         }
         $res[$item->nama_action] = $det;
     }
     return $res;
 }