public IActionResult RejectTopic(long id) { if (!User.IsInRole("Admin")) { return(RedirectToAction("Index", "Home")); } var result = _paperRepository.SetStatusTopicRejected(id); if (result == 1) { StatusMessage = "Succesfully rejected."; return(RedirectToAction(nameof(Index))); } else { StatusMessage = "Error. You can reject only new topic!"; return(RedirectToAction(nameof(Index))); } }