Ruby on Rails

Sharagoz wrote:
> If you just want to use activerecord without writing inner joins
> manually you can do
> @decks_with_aces = Deck.all(:joins => :cards, :conditions =>
> "cards.rank = ''Ace")
> @decks_with_kings = Deck.all(:joins => :cards, :conditions =>
> "cards.rank = ''King")
> @decks_with_aces_and_kings = @decks_with_aces & @decks_with_kings
>
> That basically puts all decks with kings in an array, the same for
> aces, and then uses the arrays & method to find elements common in
> both.
> It's not perfect performance wise, but it works

Thanks, but as you suggest the performance cost is prohibitive for me.
ben

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