Query.cs

public class ListPostsQuery
{
    private readonly IDocumentSession session;

    public ListPostsQuery(IDocumentSession session)
    {
        this.session = session;
    }

    public List<Post> Execute(int currentPage, int defaultPage, int pageSize, out RavenQueryStatistics stats)
    {
        return session.Query<Post>()
            .Include(x => x.AuthorId)
            .Statistics(out stats)
            .WhereIsPublicPost()
            .OrderByDescending(post => post.PublishAt)
            .Paging(currentPage, defaultPage, pageSize)
            .ToList();
    }
}