[Zope] Upgrade woes: BTreeFolder --> BTreeFolder2

[Ken Ara]

This worked perfectly. Dieter, many thanks!

I have fallen into a few pitfalls along the upgrade
path. Now I understand why so many are still using
Zope 2.7 and even earlier - it is scary. I tried to
prepare for the upgrade but did not fully appreciate
the risks. There are 'changes lists' but no compendium
of gotchas for upgraders.  By learning the use of
zopectl debug I now understand that I need to fix code
containing 'get_transaction'... And one important
project dependent on Localizer is still broken. We are
not out of the woods yet!

Ken

--- Dieter Maurer wrote:

> Ken Ara wrote at 2007-5-7 13:47 -0700:
> > ...
> >objectItems
> >    * Module OFS.ObjectManager, line 290, in _getOb
> >
> >AttributeError: Documents_catalog
> 
> "ObjectManager" has 2 references to its children:
> one in "_objects"
> and one as a direct attribute. You deleted the
> direct attribute
> but forget to delete the reference in "_objects",
> thus making
> the "ObjectManager" data structure inconsistent.
> 
> The easiest way to fix this is something like:
> 
>     from OFS.DTMLMethod import DTMLMethod
>     object_manager.Documents_catalog = DTMLMethod()
>     object_manager._delObject('Documents_catalog')
> 
> Then commit.
> 
> 
> This is also the easiest way to get rid of broken
> objects (as
> it avoids the inconsistencies in the first place).
> 
> 
> -- 
> Dieter
> 



 
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