Sorry, the underlying Datastore does not (yet) support nested transactions, 
so you cannot nest them at all.

On Monday, September 24, 2012 1:53:43 AM UTC-7, Moises Belchin wrote:
>
> Hi,
>
> In NDB we can use @ndb.transactional(xg=True).
>
> @ndb.transactional(xg=True) can be nested? If yes, how many 
> @ndb.transactional(xg=True) 
> can you nested?
>
> Thanks and regards.
> Moisés Belchín.
>
> 

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