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