I've using closure_tree for my comments, but now need to make threads with recent activity rise to the start of the nested_comments hash. In other words, I'm wanting Comment.roots to be ordered in ascending order by created_at, but comments below generation_level 1 in the resulting hash_tree to be ordered in descending order by created_at. This really just to get the hash tree out in a single query still.

Of course the proposal not be of any use to anyone other than myself. Putting it out there in case other applications might be possible that might benefit from it!

Cheers and thanks for the great gem! :)