public ActionResult Edit(int id)
        {
            PageViewModel pageViewModel = new PageViewModel(id);
            return View(pageViewModel);
        }

        [HttpPost]
        [ValidateInput(false)]
        public ActionResult Edit(int id, PageViewModel pageViewModel)
        {
            pageViewModel.MyPage = pageRepository.GetPageById(id);
            UpdateModel(pageViewModel.MyPage);
            pageRepository.Save();

            var pages = pageRepository.GetAllPages();
            return View("Index", pages);
        }