[Dbix-class] Proposed patch and tests for a txn_do() method in Schema

[Matt S Trout]

On Sat, Feb 25, 2006 at 05:32:32PM -0600, Justin Guenther wrote:
> One possible problem with failed nested rollbacks is if txn_rollback throws
> an exception before resetting $self->{transaction_depth}, it mucks up with
> future transactions. I've modified txn_rollback to wrap everything in an
> eval{} and reset transaction_depth if it fails. Since the only thing I can
> see that could throw an exception is $dbh->rollback, and it never gets
> executed unless transaction_depth is 0, I don't think this is an issue but
> it never hurts to be careful.

Commit bit granted. Get it into trunk :)

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