public ViewResult All(int page = 1, String category = null, String searchText = null)
{
ArticlesSummariesViewModel model = new ArticlesSummariesViewModel(category, searchText);
List <Article> articles = articleRepository.GetAllArticles(category: category, searchText: searchText);
model.PaginationModel = PaginationService.GetDefaultPaginationModel(articles, page);
articles = PaginationService.Paginate(articles, page).ToList();
model.Articles = articles;
return(View(model));
}