[ZODB-Dev] database conflict fail

[Alexandre Garel]

Le 21/03/2012 23:54, Claudiu Saftoiu a écrit :
> Hello ZODB List,
>
> <snip>
>
>     key = ...
>     print "Acquiring %s lock..." % (key,)
>     KEY_LOCKS[key].acquire()
>     print "%s lock acquired." % (key,)
>     def after_commit_hook(success):
>         KEY_LOCKS[key].release()
>         print "(after %s commit): Released %s lock" % (('failed', 
> 'successful')[success], key)
>     transaction.get().addAfterCommitHook(after_commit_hook)
>
Hum, if I understood correctly, lock acquiring is done before any change 
are made. So the only thing I would have done here is to have a 
transaction.begin() after lock.acquire. So you know the other 
transaction is committed and you won't have any conflict in you new 
transaction.

Does it helps ?

Alex

-- 
Alexandre Garel
06 78 33 15 37