public ActionResult AddSportEvent(SportEventModel model)
        {
            if (SportEventRepository.AddSportEvent(model))
            {
                ViewBag.SuccessMessages = "Wydarzenie zostało utworzone pomyślnie";
            }
            else
            {
                ViewBag.ErrorMessages = SportEventRepository.ErrorList;
            }
            SportEventListViewModel viewModel = new SportEventListViewModel();

            viewModel.SportEventList = SportEventRepository.GetAllSportEvents();
            SetEnumDDisciplineSelectList(true);

            return(View("Index", viewModel));
        }