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

2000-09-05 Thread 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" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
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.


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

2000-09-05 Thread Andy McKay 

Darn sorry wrong alias.

- Original Message -
From: "Andy McKay" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, September 05, 2000 2:13 PM
Subject: [Zope] Re: [Zope-dev] Folderish objects and multiple inheritance


 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" [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 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.
 
 
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