[Rails] Rails theory question, where to put a join query

[Horacio J. Peña]

> Hmm.. You make sense.  When I first started I didn't really understand
> things and so I was doing something like:

> find_by_sql("SELECT * FROM authors,posts WHERE authors.id = posts.authorid")

> But you're right I can just do an association can't I?

> Is there no extra overhead to doing the association?  I've read about
> inefficiencies with Rails queries (ie. generating many unnecessary
> queries).. Maybe that was in a many to many situation.  Maybe I'm being a
> bit paranoid.

If you want to avoid the extra queries you can use :include option so it
gets all the data on just one query.

Saludos!
					HoraPe
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Horacio J. Peña
horape at compendium.com.ar
horape at uninet.edu