[Rails] Rails namespace help requested

[Michael Engelhart]

HI Zach -

THanks very much for your help.    I'm not sure I understand why my
clash exists though because I have this exact scenario:

class StateProvince < ActiveRecord::Base
end

# this is in a directory of lib/ws
module WebServiceModule
   class StateProvince
   end
end

Isn't the  namespace declared for the class inside the module as
::WebServiceModule::StateProvince and the Rails model as
::StateProvince?   Aren't those different objects in the eyes or Ruby?

Also I'm not doing inheritance in my WebServiceModule, I'm just
declaring a namespace right?

I'm a bit new to Ruby so it's possible I'm mixing this up but this is
what I understood from reading the pickaxe book.

Thanks again for your help.

MIke


On 12/14/05, zdennis <zdennis at mktec.com> wrote:
> zdennis wrote:
> > Michael Engelhart wrote:
>
> >
> > The problem you are having is that the first time you define/open a
> > class it has to define it's superclass.
> >
> > class A ; end
> > class B < A; end
> >
> > You cannot define/open a class and then later try to subclass it, ie:
> >
> > class A; end
> > class B; end
> > class B < A; end # error!!
> >
> > This is the scenario you're hitting with your namespace clash. Your
> > StateProvince class is being initalized, then when it gets around to
> > loading your StateProvince module it seems you're trying to define
> > inheritance, and you can't do that now.
> >
>
> I don't mean to say it's anything you're doing on purpose. I think ruby finds your StateProvince
> class definition first, then it finds the StateProvince model definition, which is where it tries to
> subclass ActiveRecord::Base. At this point Ruby already has a definition for StateProvince, and
> although ruby lets us reopen the class we can't subclass it because Ruby defines the superclass of a
> class when the class is first read in.
>
> Zach
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