has_closure_tree_leaf

[cybernetlab]

Hi, Is where an analogue of has_closure_tree_root for asscoiations to leaf nodes of tree? I have following structures and want to organize their with closure_tree:

1. Localities (like: country, region, city) - tree structure
2. Users - each user has a link to lowerst-level node of localities in user.locality_id (for example - to city)

I want to be able to select all users with preloaded list of localities (all ancesotrs of leaf) for each user (for example: user.address => [city, region, country]) with a minimal number of SQL queries. Any ideas?

Looks like a feature request but may be someone gives me a hint for a temporary solution?

UPD: Also I have attempted to solve this with awesome nested set and I was able to make right SQL request but I have no idea how to preload a list of records from query result into user.address field because I've belongs_to association with user.locality_id and wants to have a sort of has_many association to same table (localities) in user.address.

Thanks in advance!