Action.cs

public ActionResult Archive(int year, int? month, int? day)
{
	RavenQueryStatistics stats;
	var postsQuery = RavenSession.Query<Post>()
		.Include(x => x.AuthorId)
		.Statistics(out stats)
		.WhereIsPublicPost()
		.Where(post => post.PublishAt.Year == year);
			
	if (month != null)
		postsQuery = postsQuery.Where(post => post.PublishAt.Month == month.Value);

	if (day != null)
		postsQuery = postsQuery.Where(post => post.PublishAt.Day == day.Value);

	var posts = 
		postsQuery.OrderByDescending(post => post.PublishAt)
		.Paging(CurrentPage, DefaultPage, PageSize)
		.ToList();

	return ListView(stats.TotalResults, posts);
}