public HttpResponseMessage SaveGroup(UserGroupDTO userGroup)
 {
     return SafeAction(() =>
        {
        IDelightServices service = new DelightServices();
        int id = service.SaveUserGroup(userGroup);
        if (id <= 0)
        {
            return Request.CreateResponse(HttpStatusCode.NoContent);
        }
        var response = Request.CreateResponse<int>(HttpStatusCode.OK, id);
        return response;
        }, userGroup);
 }