//
        // GET: /Tags/
        public ActionResult Index(int? page)
        {
            Int32 currentPage = page ?? 1;
            IQueryable<XsTag> tags = tagRepository.GetTagsByQuestionTotal().AsQueryable();
            IPagination pageTags = tags.AsPagination(currentPage, Settings.TAGS_PAGINATION_SIZE);

            Int32 currentPageSize = Settings.TAGS_PAGINATION_SIZE;

            if (currentPage == pageTags.TotalPages)
            {
                currentPageSize = pageTags.TotalItems - (pageTags.TotalPages - 1) * Settings.TAGS_PAGINATION_SIZE;
            }
            else
            {
                if (0 == pageTags.TotalPages)
                {
                    currentPageSize = 0;
                }
            }

            TagsIndexViewModel viewModel = new TagsIndexViewModel() { CurrentPageSize = currentPageSize, Tags = pageTags };

            return View(viewModel);
        }
        //
        // GET: /Questions/
        public ActionResult Index(int? page)
        {
            Int32 currentPage = page ?? 1;
             IQueryable<XsQuestion> questions =
                 from question in questionRepository.GetAll()
                 orderby question.UpdateDT descending
                 select question;

             IPagination pageQuestions = questions.AsPagination(currentPage, Settings.QUESTIONS_PAGINATION_SIZE);
             Int32 currentPageSize = Settings.QUESTIONS_PAGINATION_SIZE;

             if (currentPage == pageQuestions.TotalPages)
             {
                 currentPageSize = pageQuestions.TotalItems - (pageQuestions.TotalPages - 1) * Settings.QUESTIONS_PAGINATION_SIZE;
             }
             else
             {
                 if (0 == pageQuestions.TotalPages)
                 {
                     currentPageSize = 0;
                 }
             }

             TagsIndexViewModel viewModel = new TagsIndexViewModel() { CurrentPageSize = currentPageSize, Tags = pageQuestions };

             IList<XsTag> popularTags = tagRepository.GetTagsByQuestionTotal().Take(Settings.POPULAR_TAGS_LIMIT).ToList();

             QuestionsIndexViewModel questionsViewModel = new QuestionsIndexViewModel()
             {
                 Questions = pageQuestions,
                 PopularTags = popularTags,
                 CurrentPageSize = currentPageSize
             };

             return View(questionsViewModel);
        }