[Zope] Error Value: 'File' object has no attribute 'manage_fixupOwnershipAfterAdd'

[Roman Klesel]

Hello,

Roman Klesel schrieb:
> Hello,
> 
> in a product I try to make a file object persistent with the _setObject() method.
> 
> However I get the error:
> Error Value: 'File' object has no attribute 'manage_fixupOwnershipAfterAdd'

I managed to fix this by crating my own _File class and subclassing from (SipleItem,File) however now the objects I
persited show up as Type=SipmleItem and not File. Consequently they don't have the nice ZMI Interface of File objects :-(

I'm really struggeling to get this working. Anyone wants to let me know how you create File objects from a product?

Greetings Roman