[Zope-dev] Inheritable Propertysheets!???!!?!?!?!!

[Seb Bacon]

AFAIK (but I'm no expert), a ZClass inherits its parents' propertysheets and
you can access them in the normal way.  The problem is that the all the
propertysheets have to have different names.  Example:

If your parent class and the child class both have a property sheet called
"Basic", but the child class is hoping to inherit someproperty from the
parent class:

  ParentClass.Propertysheets.Basic.someproperty

is ok, but

  ChildClass.Propertysheets.Basic.someproperty

won't work, because "someproperty" is not in ChildClass's "Basic"
propertysheet.

If your parent class and child class do not share propertysheets with the
same name, you *can* access parent properties:

  ChildClass.Propertysheets.ChildSheet.anotherproperty
  ChildClass.Propertysheets.Basic.someproperty

will both work.

If I'm correct, this is all wrong and a bad thing, surely?

However that was the worst-explained thing I've ever been responsible for
and it's probably wrong.  That particular configuration of punctuation in
the subject header just struck a chord with me...

seb.



> -----Original Message-----
> From: zope-dev-admin@zope.org [mailto:zope-dev-admin@zope.org]On
> Behalf Of Alexander Schonfeld
> Sent: 18 October 2000 10:25
> To: zope-dev@zope.org
> Subject: Re: [Zope-dev] Inheritable Propertysheets!???!!?!?!?!!
>
>
> I guess I can just use dtml methods that return lists and stuff, but is
> that as cool?
>
> On Wed, 18 Oct 2000 18:21:33 +0900
> Alexander Schonfeld <alex@garage.co.jp> wrote:
>
> > I'm doing an experiment... If I add more '!' and '?' marks will I get a
> > response.  Soon with enough experimentation I can find the optimal
> > number and frequency of variation.
> >
> > I want to inherit the properties of one zclass in another zclass, but
> > it seems to cause some namespace clashing... shouldn't this be possible?
> > Working with the instance of the class is fine, but inter-zclass
> > inheritance (acquisition?) would be nice...
> >
> > Cool feature?
> >
> > Am I missing something?
> > Thanks,
> >
> > Alex.
> >
> > 1010011010101001101010100110101010011010
> > 0  Digital Garage$B!!%G%8%?%k<V8K!!(B:)
> > 1  Alexander Schonfeld
> > 0  alex@garage.co.jp - pear - 03-5454-7219
> > 1  http://www.zope.ne.jp/ http://www.garage.co.jp
> >
> >
> >
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> 1  http://www.zope.ne.jp/ http://www.garage.co.jp
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