Forum: Ruby on Rails Query & compose an array

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
Tom H. (Guest)
on 2008-10-30 13:28
Hi there,

What's the correct & most efficient way to compose the following array?

I have:

Existing tables:
- users (:id)
- user_languages (:id, :user_id, :language_id)
- languages (:id, :name)

Existing array:

Wanted array: (for a specific user)
"@languages" = Languages.find(:all) - ("Languages" whose ":ids" can be
found as ":language_ids" in the existing array "@user_languages")

Thanks a lot for your help!
This topic is locked and can not be replied to.