From: Ittay Dror <ittay.dror@...>
Date: 2008-12-08T16:48:05+09:00
Subject: Re: include module in module



Ittay Dror wrote:

> Hi,
>
>
> I have a situation like this:
>
> module M
>
>   ....
>
> end
>
>
> class C1
>
>   include M
>
>   ...
>
> end
>
>
> class C2
>
>   include M
>
>   ...
>
> end
>
>
> Now I want to add methods to C1 and C2 and whatever other class 
> includes M.
>
>
> My first approach was:
>
> module S
>
>   ....
>
> end
>
>
> module M
>
>   include S
>
> end
>
>
> But this doesn't work (meaning whatever methods I have in S are 
> undefined for instances of C1, C2).
>
>
> So, how can I do that?
I think I solved it:
module S
   def self.included(other)
      methods = instance_methods(false)
      other.module_eval do
         methods.each do |name|
            name = name.to_sym
            base.send :define_method, name, instance_method(name)
          end
      end
   end
end

Ittay
>
>
> Thanks,
>
> Ittay
>
>

-- 
--
Ittay Dror <ittay.dror@gmail.com>