[ZODB-Dev] TypeError: unbound method beforeCompletion() must be called with Synchronizer instance as first argument (got Transaction instance instead)

[Wichert Akkerman]

On 07/26/2011 01:47 PM, Stéphane Klein wrote:
> Hi,
>
> I've this in my source code :
>
> from zope.interface import implements
> from transaction.interfaces import ISynchronizer
>
> class Synchronizer(object):
>       implements(ISynchronizer)
>
>       def beforeCompletion(self, transaction):
>           print("beforeCompletion")
>
>       def afterCompletion(self, transaction):
>           print("afterCompletion", transaction)
>
>       def newTransaction(self, transaction):
>           print("newTransaction", transaction)
>
> ...
>
> transaction.manager.registerSynch(Synchronizer)

I bet this works:

transaction.manager.registerSynch(Synchronizer())