public ActionResult Index() {
     var tags = _tagService.GetTags();
     var model = new TagsIndexViewModel { Tags = tags.ToList() };
     return View(model);
 }
 public ActionResult Index()
 {
     try {
         var tags = _tagService.GetTags();
         var model = new TagsIndexViewModel { Tags = tags.ToList() };
         return View(model);
     }
     catch (Exception exception) {
         _notifier.Error(T("Listing tags failed: " + exception.Message));
         return Index();
     }
 }