Rails: find by day of week with timestamp

Posted by Sleepycat on Stack Overflow See other posts from Stack Overflow or by Sleepycat
Published on 2010-03-29T02:22:19Z Indexed on 2010/03/29 2:23 UTC
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best-practices

I need to grab the records for same day of the week for the preceeding X days of the week. There must be a better way to do it than this:

Transaction.find_by_sql "select * from transactions where EXTRACT(DOW from date) = 1 and organisation_id = 4 order by date desc limit 7"

It gets me what I need but is Postgres specific and not very "Rails-y". Date is a timestamp. Anyone got suggestions?

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