[Zope] Re: SquishDot exposes issue with ZCatalog/Catalog.clear() in Zope 2.8.0

[Alexander Limi]

On Mon, 15 Aug 2005 21:51:08 +0200, Stephen Bartlett  
<stephen at bartlettsoftware.biz> wrote:

>  If you attempt to import a SquishDot site that was exported from an
> older version of Zope (in my case, Zope 2.6.4) into Zope 2.8.0, you
> get an exception raised in Products.ZCatalog.Catalog.py at line 106
> because self has no _length attribute.  In other sections of code in
> Catalog.py, there's this chunk of code present:
>
> ~        if not hasattr(self, '_length'):
> ~            self.migrate__len__()
>
> It seems that this chunk of code should also be inserted before the
> reference to self._length in the clear() method.  I did so, and it
> solved my issue with importing SquishDot sites.
>
> This bug in Catalog.clear() is also in Zope 2.8.1.

This also causes issues when upgrading Plone sites, and counts for about  
half the migration error reports we get with Plone 2.1 at the moment. :)

-- 
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      Alexander Limi · Chief Architect · Plone Solutions · Norway

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