Terpinator wrote:

> I have one method, 'updateStuff', that will call 'update_attributes'
> on 3 different models in the DB.....
> 
> How can I account for validation to revert back all updates if one of
> the models is not valid?

Note that you want all-or-nothing DB updates, but, for purposes
of form redisplay, always want both in-memory attribute updates
and validity-checking done on each. Here's how:

1. Update attributes on each without saving using the attributes= method.
2. Call valid? on each, storing each result in a local variable.
3. Proceed with transaction-wrapped saves if all three variables are true.

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