public HttpResponseMessage GetAllUsersCompareToSpecificGroup([FromBody]IdentityModel model)
 {
     return SafeAction(() =>
     {
         IDelightServices service = new DelightServices();
         var user = service.GetAllUsersCompareToSpecificGroup(model.Id)
             .OrderByDescending(x => x.InGroup);
         if (user == null)
         {
             return Request.CreateResponse(HttpStatusCode.NoContent);
         }
         var response = Request.CreateResponse<IEnumerable<UserFromGroupDTO>>(HttpStatusCode.OK, user);
         return response;
     }, model);
 }