// GET: /SiteContent/
        public ActionResult Index()
        {
            var model = new ContentListViewModel();

            model = model.Populate(db);
            return(View(model));
        }
        public ActionResult History(string id = null)
        {
            var model = new ContentListViewModel();

            model = model.Populate(db, id);
            if (!model.Items.Any())
            {
                return(HttpNotFound());
            }
            return(View(model));
        }