On Mon, Jul 29, 2002 at 07:58:22AM +0100, Toby Dickenson wrote:
On Saturday 27 Jul 2002 12:32 am, Ross Boylan wrote:
On Sat, Jul 27, 2002 at 12:26:04AM +0200, Lennart Regebro wrote:
From: "Ross Boylan" <RossBoylan@stanfordalumni.org>
I don't follow that last paragraph. Does it mean 1. acquisition created by a.__of__(b) doesn't survive transactions.
Correct.
Just to be sure I understand: so if c is persistent, and I say c.d = a.__of__(b)
This is storing an acquisition wrapper as an attribute of c.
acquisition wrappers are not persistent. This will raise an exception if you try to store c in ZODB.
I was able to store these things without raising an exception, though not with the ability to reconstitute them reliably. My case was, however, subtly different. a.__of__(b) got put in a PersistentList, which is essentially [] with a little extra help: ------------------------------------- # This code is a copy of the Python UserList.py, updated to support # persistence. from Persistence import Persistent class PersistentList (Persistent): isAPersistentList = 1 def __init__(self, lst=None): if lst is None: self.data = [] else: self.data = list(lst) -------------------------------------- Either this case is different, or it is not the case that attempting to store and acqusition wrapper raises an exception (in Zope 2.5.1).