[Zope-dev] Re: Patching object class

[Maik Jablonski]

Florent Guillaume wrote:
> I have the need to "update" some persistent objects in a ZODB to change 
> their class.
> 
> One use case comparable to the one I have would be to change all objects 
> of type Folder to OrderedFolder.
> To do that, I envisionned finding all thoses objects and doing
> 
>   ob.__class__ = OrderedFolder
>   ob._p_changed = 1
> 
> Would this work ?
> 
> If not, what other hack could I do ? The idea being that I don't want to 
> recreate all the objects.

Maybe you should install OrderedObjectManager for bringing order to all 
your folders.

http://www.zope.org/Members/mjablonski/OrderedObjectManager

I'll release an api-updated version when 2.7 is released.

Cheers, Maik