public async Task<ActionResult> EditTopic(string topicId)
{
var vm = new EditTopicViewModel();
vm.TopicId = topicId;
vm.EditTarget = await DbContext.Topics.FindAsync(topicId);
return View(vm);
}
public async Task<ActionResult> AddTopic()
{
var vm = new EditTopicViewModel();
TopicModel topicModel = TopicModel.GenerateNewTopic();
vm.TopicId = topicModel.TopicId;
vm.EditTarget = topicModel;
return View("EditTopic",vm);
}
public async Task<ActionResult> EditTopic(EditTopicViewModel vm)
{
vm.EditTarget.TopicId = vm.TopicId;
TopicModel lastModel = await DbContext.Topics.FindAsync(vm.TopicId);
if (lastModel != null)
{
DbContext.Topics.Remove(lastModel);
await DbContext.SaveChangesAsync();
}
DbContext.Topics.Add(vm.EditTarget);
await DbContext.SaveChangesAsync();
var thumbnailManager = new TopicThumbnailManager(new BlobStorageConnection());
await thumbnailManager.UploadAsync(vm.TopicId, vm.Thumbnail);
return RedirectToAction("TopicList");
}