public IActionResult Edit(Club club) { if (ModelState.IsValid) { if (!repository.CheckClubExist(club)) { repository.SaveClub(club); TempData["message"] = $"{club.ClubName} has been saved"; return(RedirectToAction("Index")); } else { TempData["message"] = $"{club.ClubName} already exists. Please choose another club name."; } } return(View("EditClub", club)); }