[Zope] Re: [Zope-dev] Folderish objects and multiple inheritance

[Andy McKay]

Hmmm I can override inheritance in a simple class... I guess theres
something in Zope thats annoying this:

class A:
 var = 'A'

 def test(self):
  return self.var

class B:
 var = 'B'

 def test(self):
  return self.var

class C(B, A):
 var = 'C'

 def test(self):
  return A.var

c = C()
print c.test()

OUTPUT>> A

----- Original Message -----
From: "Andy McKay" <andym@ActiveState.com>
To: <zope-dev@zope.org>
Sent: Tuesday, September 05, 2000 11:35 AM
Subject: [Zope-dev] Folderish objects and multiple inheritance


> Hi there,
>
> Ok so I have a class that has multiple inheritance. My main class (A)
works
> fine, but I wanted to add in folderish properties. The problem is the
order
> of multiple inheritance and viewing folder objects. When you view a folder
> from you call index_html and this gives a content list.
>
> By inheriting this way:
>
> class B(A, Folder):
>
> I have kept all my A methods. However viewing it does not produce the
> content list since its overwritten by A. Of course inheriting:
>
> class B(Folder, A):
>
> Does work for that, but breaks all my other methods.
>
> Solutions:
>
> Well I tried defining a tab - view_folder which was something along the
line
> of:
>
> def view_folder(self, client=None, REQUEST={}):
>     ''' doc string '''
>     return Folder(self, client, REQUEST)
>
> But get an attribute error on manage_tabs.
>
> Any ideas?
>
> Thanks.
>
> --
>   Andy McKay, Developer.
>   ActiveState.
>
>
> _______________________________________________
> Zope-Dev maillist  -  Zope-Dev@zope.org
> http://lists.zope.org/mailman/listinfo/zope-dev
> **  No cross posts or HTML encoding!  **
> (Related lists -
>  http://lists.zope.org/mailman/listinfo/zope-announce
>  http://lists.zope.org/mailman/listinfo/zope )
>