public async Task <IActionResult> CreateEvent(ControllerModels.Topics.EditEventInput input) { if (ModelState.IsValid) { if (input.TopicId >= 0) { var topicRecord = DbContext.Topics.FirstOrDefault(item => item.Id == input.TopicId); if (topicRecord is null) { throw new HttpNotFoundError(); } if (input.Start is null) { return(RedirectToAction(nameof(Topics.Display), new { id = topicRecord.Id })); } var isOwner = topicRecord.FirstMessagePostedById == UserContext.Id; var isAdmin = UserContext.IsAdmin; if (!isOwner && !isAdmin) { throw new HttpForbiddenError(); } var result = await TopicRepository.AddEvent(input); ModelState.AddModelErrors(result.Errors); if (ModelState.IsValid) { var redirectPath = Url.DisplayMessage(result.TopicId, result.MessageId); return(Redirect(redirectPath)); } } else { var createTopicViewModel = new ViewModels.Topics.CreateTopicForm { Start = input.Start, End = input.End, AllDay = input.AllDay, SelectedBoards = JsonConvert.DeserializeObject <List <int> >(input.SelectedBoards) }; return(View(nameof(Create), createTopicViewModel)); } } var editEventViewModel = new ViewModels.Topics.EditEventForm { FormAction = nameof(Topics.CreateEvent), FormController = nameof(Topics), Start = input.Start, End = input.End, AllDay = input.AllDay, TopicId = input.TopicId, Body = input.Body, SelectedBoards = JsonConvert.SerializeObject(input.SelectedBoards) }; return(View("EditEvent", editEventViewModel)); }