[ZODB-Dev] Re: Migrating classes in ZODB 3.5.1

[George Lee]

Lennart Regebro <regebro <at> gmail.com> writes:

> 
> This may not help, but anyway. :)
> 
>  In Zope, I did this: I moved the class to the module I wanted it. I
> also kept a "dummy class" in the old place like so:
> 
> from newplace import class
> 
> so that the old objects worked. Then I wrote a script to go through
> the ZODB and recreate every object. I then could remove the dummy
> import.
> 
> Kaching!
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> 
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> 



Hey -- I do work with Plone but not much with ZODB directly, and am running into
this problem as I migrate some of my classes to different modules.

Lennart, do you mind sharing the code for your script? I don't know how much
persistence, committing transactions, and other strange ZODB things Plone people
can hide from, affect how to do it.

(Or -- is it possible to just recreate objects through Plone itself, rather than
through the ZODB? Or on the flip side, does having a Plone and not just a ZODB
object mean it's more complicated to recreate the object because there's even
more information about the object that needs to be recreated?)

Peace,
George