public ActionResult MoveTags()
{
using (UnitOfWorkManager.NewUnitOfWork())
{
var viewModel = new MoveTagsViewModel
{
Tags = TagsSelectList()
};
return View(viewModel);
}
}
public ActionResult MoveTags(MoveTagsViewModel viewModel)
{
using (var unitOfWork = UnitOfWorkManager.NewUnitOfWork())
{
var oldTag = _topicTagService.Get(viewModel.CurrentTagId);
var newTag = _topicTagService.Get(viewModel.NewTagId);
// Look through the topics and add the new tag to it and remove the old!
var topics = new List<Topic>();
topics.AddRange(oldTag.Topics);
foreach (var topic in topics)
{
topic.Tags.Remove(oldTag);
topic.Tags.Add(newTag);
}
// Reset the tags
viewModel.Tags = TagsSelectList();
try
{
unitOfWork.Commit();
ShowMessage(new GenericMessageViewModel
{
Message = string.Format("All topics tagged with {0} have been updated to {1}", oldTag.Tag, newTag.Tag),
MessageType = GenericMessages.success
});
}
catch (Exception ex)
{
unitOfWork.Rollback();
LoggingService.Error(ex);
ShowMessage(new GenericMessageViewModel
{
Message = string.Format("Error: {0}", ex.Message),
MessageType = GenericMessages.danger
});
}
return View(viewModel);
}
}
