From: David Heinemeier Hansson <david@...>
Date: 2004-06-10T04:52:00+09:00
Subject: Re: [ANN] Active Record 0.8.3: Modules, mapping, and transactions

> Is there a benefit to being able to pick and choose which objects are 
> part
> of the transaction and which are not that I am being too dense to see 
> right
> now?  What are your thoughts?

It could very well be that you're interested in the data that cause the 
invalidation. So let's imagine that name = "David" will cause the 
transaction to fail. I'd really to be able to access that value 
afterwards. This is how the validations stuff in AR works as well. So 
attempt to validate the data, if it fails, you can present the wrong 
data for correction.

That and, personally, I don't really need the object transactions most 
of the time. So it's nice to be able to turn it off by not specifically 
requiring it. Transactions are not free of performance penalties (as 
Austin mentioned).
--
David Heinemeier Hansson,
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