public IActionResult SetResult(int id, bool isSuccess)
        {
            var model = NotifyService
                        .Include(t => t.Recipient)
                        .Include(t => t.Sender)
                        .Include(t => t.Project)
                        .FindById(id);

            if (isSuccess)
            {
                var sender = UserService.Include(t => t.Worker).FindById(model.SenderId);
                ProjectService.AddParticipant(model.ProjectId, sender.Worker.Id);
            }

            NotifyService.Delete(id);
            return(RedirectToAction("Index"));
        }