Database Transactions

ActiveRecord's standard procedure for transactions is to send a block,
and throw an exception to roll it back (
http://api.rubyonrails.com/classes/ActiveRecord/Transactions/ClassMethods.html
). I found this rather uncomfortable. I'd like to be able to begin
transactions, commit them, or roll them back from within (fairly)
complex control structures - and having to do everything within a
block, with one way out, is no good.

Any suggestions?

PS This question concerns ActiveRecord, an O/R mapper which can be used
for lots of things. It's _not_ a _rails_ questions (what's rails???)

.

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