as a data point, I used this with an existing ZClass that was also a subclass of Object manager. After the upgrade, things like 'objectValues' would no longer work in the ZClass instance (they'd return no objects). I didn't try to figure out why, I just threw away the changes. So yes, make sure you back up your Data.fs before you play this game.

...

...

Alexandre Ratti wrote Hi Alexander,

There was a hack some time ago that allowed to change the base classes for a ZClass. I used it once or twice in 2.0.1. I've never used it in 2.1b.

Take a look at this email: <http://lists.zope.org/pipermail/zope-dev/1999-August/001288.html>. It contains explanations and an external method developped by Andreas Kostyrka.

Be careful with it: better back up your database before trying it!

Cheers.

Alexandre

At 20:40 16/11/1999 -0800, you wrote:

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From: Alexander Staubo <alex@mop.no> To: "Zope Mailing List (E-mail)" <zope@zope.org> Subject: [Zope] Making non-aware ZClass CatalogAware Date: Tue, 16 Nov 1999 22:44:05 +0100

I have a bunch of ZClasses that aren't descended from the catalog-aware class-wossname. I need to make them catalog-aware. How do I easily do this? Can I export to XML and somehow import them in again?

-- Alexander Staubo http://www.mop.no/~alex/ "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein

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