public HttpResponseMessage Get([FromUri] preg_question data)
 {
     try
     {
         int user_id = Convert.ToInt32(((ClaimsIdentity)(User.Identity)).FindFirst("id").Value);
         if (!data.DeepEquals(new preg_question()))
         {
             IEnumerable <preg_question> result = dao.GetItemsByParams(data).Where(c => c.custom_question_by_user_id == null || c.custom_question_by_user_id == user_id);
             if (result.Count() > 0)
             {
                 return(Request.CreateResponse(HttpStatusCode.OK, result));
             }
             else
             {
                 HttpError err = new HttpError(SysConst.DATA_NOT_FOUND);
                 return(Request.CreateErrorResponse(HttpStatusCode.NotFound, err));
             }
         }
         else
         {
             IEnumerable <preg_question> result = dao.GetListItem().Where(c => c.custom_question_by_user_id == null || c.custom_question_by_user_id == user_id);
             if (result.Count() > 0)
             {
                 return(Request.CreateResponse(HttpStatusCode.OK, result));
             }
             else
             {
                 HttpError err = new HttpError(SysConst.DATA_NOT_FOUND);
                 return(Request.CreateErrorResponse(HttpStatusCode.NotFound, err));
             }
         }
     }
     catch (Exception ex)
     {
         HttpError err = new HttpError(ex.Message);
         return(Request.CreateErrorResponse(HttpStatusCode.NotFound, err));
     }
 }