Need some help to get rid of an InvalidObjectReference exception
Hi zopers, In my zope product, when I try to put some specific object in the session, I get this : 2008-08-18T14:51:02 ERROR(200) SiteError http://www.afdas.com:8091/noyauafdas/tests/testAdresses Traceback (most recent call last): File "/opt/Zope-2.7/lib/python/ZPublisher/Publish.py", line 107, in publish transactions_manager.commit() File "/opt/Zope-2.7/lib/python/Zope/App/startup.py", line 222, in commit get_transaction().commit() File "/opt/Zope-2.7/lib/python/ZODB/Transaction.py", line 241, in commit ncommitted += self._commit_objects(objects) File "/opt/Zope-2.7/lib/python/ZODB/Transaction.py", line 356, in _commit_objects jar.commit(o, self) File "/opt/Zope-2.7/lib/python/ZODB/Connection.py", line 452, in commit dump(state) InvalidObjectReference: Attempt to store an object from a foreign database connection after hours of googling and debugging (not very easy because traceback does not show the line of your product code that fired the exception), I found the line that is breaking everything. def remonterAdresses(self,p_idEntreprise=0): """ Sans arguments, cette methode retourne les adresses stockees en session. """ # XXX : attention, p_idEntreprise est totalement ignore si entreprise deja en session entreprise = self.REQUEST.SESSION.get('entreprise') print "GestionnaireEntreprises::remonterAdresses..." if not entreprise : entreprise = Entreprise(self,p_idEntreprise) print "mise de entreprise en session.." self.REQUEST.SESSION.set('entreprise',entreprise) print "...mise en session OK" adresses = entreprise.remonterAdresses() print "GestionnaireEntreprises::remonterAdresses OK, adresses = ",adresses return adresses Now, the bug comes form the line self.REQUEST.SESSION.set('entreprise',entreprise) entreprise is an instance of Entreprise. I never put objects of this class in the ZODB because I don't need them to persist, they're just temporary. However, because Entreprises objects need to access to other objects that are in the ZODB, I pass them self as first argument, so that they can use it as a "context" to acquire other objects (for examples, Z SQL Methods). So inside Entreprise code, I can do something like self.context.zsql_method_something... because self.context is a reference to the caller, which lives in the ZODB. The caller is gestionnaireEntrprises. So my question is : what is wrong with that ? Why do I get this InvalidObjectReference ? is it the entreprise object that is in the session ? is it the gestionnaireEntreprises that is stored as an attribute of the entreprise object ? maybe both ? Thank you for any advice. Zope 2.7 python 2.3 plone 2.0.5 _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
