public async Task <IActionResult> CreateTopic(ForumIndexViewModel model)
{
model.TopicGroups = topicGroupsRepository.FindAll();
if (string.IsNullOrWhiteSpace(model.NewTopic.Title))
{
ModelState.AddModelError <ForumIndexViewModel>(m => m.NewTopic.Title, "Zadejte název tématu.");
return(View("Index", model));
}
if (string.IsNullOrWhiteSpace(model.NewTopic.Info))
{
ModelState.AddModelError <ForumIndexViewModel>(m => m.NewTopic.Info, "Zadejte informace o novém tématu.");
return(View("Index", model));
}
if (string.IsNullOrWhiteSpace(model.SelectedTopicGroup))
{
ModelState.AddModelError <ForumIndexViewModel>(m => m.SelectedTopicGroup, "Vyberte skupinu témat.");
return(View("Index", model));
}
int id = Convert.ToInt32(model.SelectedTopicGroup);
var topicGroup = await topicGroupsRepository.FindByIdAsync(id);
if (topicGroup == null)
{
Console.WriteLine("GroupNull");
TempData.AddErrorMessage("Do této skupiny nemůžete přidat nové téma.");
return(View("Index", model));
}
if (topicGroup.Topics.Any(t => t.Title.Trim() == model.NewTopic.Title.Trim()))
{
ModelState.AddModelError <ForumIndexViewModel>(m => m.NewTopic.Title, "Téma s tímto názvem již v této skupině existuje.");
return(View("Index", model));
}
Console.WriteLine("Creating");
model.NewTopic.Created = DateTime.Now;
model.NewTopic.User = await userManager.GetUserAsync(User);
model.NewTopic.TopicGroup = topicGroup;
await topicsRepository.CreateAsync(model.NewTopic);
return(RedirectToAction("Index"));
}
public async Task <Guid> Handle(CreateTopicCommand request, CancellationToken cancellationToken)
{
var topic = _mapper.Map <Topic>(request);
var options = _mapper.Map <List <Option> >(request.AddOptionModels);
try
{
var _ = options.ToDictionary(k => k.Name, v => string.Empty);
}
catch (ArgumentException)
{
throw new ArgumentException("Each option should be different");
}
foreach (var opt in options)
{
opt.TopicId = topic.Id;
}
await using var transaction = _databaseTransaction.BeginTransaction();
try
{
await _topicsRepository.CreateAsync(topic);
await _optionsRepository.CreateRangeAsync(options);
transaction.Commit();
_logger.LogInformation("{Message} {TopicId} {TopicName} {CreatedBy}", "Created topic", topic.Id, topic.Title, topic.User.UserName);
return(topic.Id);
}
catch (Exception)
{
transaction.Rollback();
throw;
}
}
