public ActionResult Index(string tags = null)
{
var posts = this.posts.All();
if (!string.IsNullOrWhiteSpace(tags))
{
var separatedTags = Regex.Split(tags, @"\W+");
posts = posts.Where(x => x.Tags.Any(y => separatedTags.Contains(y.Name)));
}
var model = posts
.OrderByDescending(x => x.CreatedOn)
.ThenBy(x => x.Id)
.ProjectTo <IndexBlogPostViewModel>();
return(this.View(model));
}
