[Zope-dev] Zope crashing on
Shane Hathaway
shane@digicool.com
Mon, 17 Jul 2000 15:29:54 -0400
Steve Alexander wrote:
>
> Zope 2.1.6
>
> I'm using a "walk the tree" method of updating instances of a Python
> class, using an external method. Is there any reason that the following
> excerpt from an external method would cause Zope to crash shortly after
> it's been run on all suitable objects? The crash happens when I try to
> see one of the converted objects in my browser.
>
> def update_state(self):
> item = getattr(self, 'aq_base', self)
> item.content_state=PersistentMapping({'review':'public'})
> item.review_state=ComputedAttribute(\
> lambda self: self.content_state['review'])
>
> It seems to do something nasty to ZODB. I need to truncate Data.fs to
> get Zope working again.
>
> Perhaps I'm misunderstanding something about ComputedAttributes...
You're storing the ComputedAttribute itself in the pickled object.
AFAIK ComputedAttribute objects can't be pickled. What you really
want, I think, is to create a review_state ComputedAttribute for the
class, then "del item.review_state" for each instance.
Shane