[Twisted-Python] run queries in deffered, but not in transaction
exarkun at twistedmatrix.com
exarkun at twistedmatrix.com
Tue Sep 15 08:55:22 MDT 2009
On 10:37 am, petshmidt at googlemail.com wrote:
>Hi,
>
>I'd like to run several queries in background, some of them may fail.
>Currently, I do runInteraction for each query. Is there a way to run
>them all in one deferred, so that if one of them fails, other are not
>aborted?
If you have a function along the lines of this one:
def someInteractions(db):
interactions = [
db.runInteraction(one),
db.runInteraction(two),
db.runInteraction(three)]
Then a failure in one shouldn't affect two or three; likewise for any
other failure or combination of failures. They are naturally (ugh, not
a good word, but I can't think of a better one) independent. You have
to go out of your way to associate them somehow.
Since it sounds like this isn't the behavior you're seeing, I think I'm
probably misunderstanding some aspect of your question. If this doesn't
help, perhaps you can clarify?
Jean-Paul
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