control over deleting objects (was Re: [Zope-CMF] fine grained permissions for adding objects)

[Luca Olivetti]

Dieter Maurer wrote:
> Alternatively, you might check in
> "manage_beforeDelete" and raise an exception, when the object
> does not want to be deleted by the current user.


Not any exception though, it must be a BeforeDeleteException, like:

from OFS.ObjectManager import BeforeDeleteException

class myClass(SomeBaseClass):
....
....
    def manage_beforeDelete(self,item,container):
       "check if user can delete the object"
       if not suitable_condition:
          raise BeforeDeleteException, ('You can't delete me')


-- 
Luca Olivetti