20 Jun
2003
20 Jun
'03
7:01 p.m.
Florent Guillaume wrote at 2003-6-20 16:56 +0200:
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 ?
It will not work (at least it did not when I last tried it). The "__class__" assignment was simply ignored (no error, it was just that the class did not change).
If not, what other hack could I do ? The idea being that I don't want to recreate all the objects.
I follow Maik: Give "OFS.Folder.Folder" (or even "ObjectManager") "Orderable" support. Dieter