Rails query to find other likes based on category

Posted by Mik on Stack Overflow See other posts from Stack Overflow or by Mik
Published on 2010-06-17T15:50:58Z Indexed on 2010/06/17 18:33 UTC
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ruby-on-rails

I need to do something like the following:

Find other categories people like based on the categories you like. I have a likes table, which is joined to users and categories.

I need to do an efficient query to find out what other categories people who liked a given category also like.

Any thoughts on this would be appreciated. Thanks in advance.

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Developer IT

Rails query to find other likes based on category - Developer IT

Rails query to find other likes based on category

ruby-on-rails

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