[ZODB-Dev] conflict resolution for PersistentList

[Diez B. Roggisch]

Am Monday 24 May 2004 15:28 schrieb Jeremy Hylton:
> On Mon, 2004-05-24 at 09:20, Diez B. Roggisch wrote:
> > Having a _p_resolveConflict on UserList didn't help me as it doesn't get
> > called, while having one at Parent gets called but contains the pickled
> > version as state - nothing I can work with.
>
> I don't understand why an _p_resolveConflict on a PersistentList
> subclass wouldn't be called.  (You do mean PersistentList instead of
> UserList, right?)  That sounds like a bug.
>
> class MyList(PersistentList):
>     def _p_resolveConflict(...):
>         pass # do something

yup - from  the code-example I sended today:

class ConflictPersistentList(PersistentList):
    def _p_resolveConflict(_, oldState, savedState, newState):
        print "resolving"
        print oldState, newState
        return oldState


the example is pretty self-contained, if someone is interested on working with 
it I'll tar it up.

Diez