private function modifyPostImp($request, $response, $bloodSugarStep)
 {
     /*{{{*/
     $type = $request->type;
     $typeArr = explode(",", $type);
     $params = $request->vars;
     $arrs = $request->arrs;
     $params = BloodSugarStep::convertFieldArrToStr($typeArr, $params);
     $params += $arrs;
     $bloodSugarStepId = BloodSugarStepClient::getInstance()->modify($bloodSugarStep->id, $params);
     $bloodSugarStep = DAL::get()->find("BloodSugarStep", $request->bloodSugarStepId);
     $content = $bloodSugarStep->getContentByType();
     $healthDiaryId = HealthDiaryClient::getInstance()->updateDiary($bloodSugarStep->healthDiary->id, $content, array());
     return $bloodSugarStep;
 }