Hi all,
I'm struggling to find any arel docs that cover anything but the most basic
of joins.
I have users and boards, with a memberships join table (memberships has
user_id and board_id FKs). So,
User <--->> Membership <<---> Board
For a given user, I want to select all memberships on boards to which this
user has a membership. So, a slow 2-query version of what I want is
Membership.where(:board_id => current_user.boards.map(&:id))
Can someone drop some arel knowledge on me?
ben_h
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