[Rails] Re: Check if within a transaction?

On Saturday 19 March 2011, GS wrote:
> is it possible to / how can you check if you are currently within a
> transaction?
>
> I'd like a method to raise an error if it is called from outside of a
> transaction, but run normally otherwise.

You could just wrap the code in your method in a transaction block. As
the docs say:

+transaction+ calls can be nested. By default, this makes all database
statements in the nested transaction block become part of the parent
transaction.

I.e., a nested transaction block does *not* result in a nested
transaction. If you want the latter, you have to use
transaction(:requires_new => true).

Michael

--
Michael Schuerig
mailto:michael@schuerig.de
http://www.schuerig.de/michael/

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