[Zope-dev] Re: Renaming a product
Clemens Robbenhaar wrote: The actual work is the transformation of instances of class "A.Foo" to class "B.Foo"; to be on the safe side one would have to copy over all attributes manually. If You want to try a fast and dirty solution, You could try to write the new class into the '__class__' attribute of the instance of the old class, making it an instance of the new class, but I do not know it this really works. Somebody correct me please, if I'm wrong, but 1. tinkering with __class__ is the only way to do this. 2. you can not tinker with __class__ of an ExtensionClass, i.e. all Persistent objects. So, it is not doable, IIRC. Phil ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Renaming a product
> Somebody correct me please, if I'm wrong, but > > 1. tinkering with __class__ is the only way to do this. > 2. you can not tinker with __class__ of an ExtensionClass, i.e. all > Persistent objects. It's not easily doable, no. I settled on converting each instance (copying properties) from the old product name to the new, and it worked. Thanks for your help everybody. :) Regards, Morten W. Petersen -- Technologies: Zope, Linux, Python, HTML, CSS, PHP Homepage: http://www.nidelven-it.no Phone number: (+47) 45 44 00 69 ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
