[Zope] ZClass with Renderable and DTML document doesn't work

[Dieter Maurer]

Brad Clements writes:
 > I'm trying to create a ZClass that will call my own render function. The Zclass is derived 
 > from ZObject, ZDTMLDocument, _ZClass_for_Renderable 
 > 
 > The Renderable base class overrides __str__ to call a render function. I also 
 > modified it to overide __call__, but in any case when I view the document 
 > through a normal URL traverse, I only see the dtml being rendered, my render 
 > function is not called.
Inheritance order is essential.

  Move your "_ZClass_for_Renderable" to the front.
  Otherwise, it has no chance to override "ZDTMLDocument.__str__".


Dieter