From: Trans <transfire@...>
Date: 2006-08-30T23:05:34+09:00
Subject: Re: Overriding Class Methods With Modules


John W. Long wrote:
> How do I override a class method on an object with another module? For
> example:
>
>    class TestObject
>      def self.my_method
>        "override me"
>      end
>    end
>
>    module TestExtension
>      def my_method
>        "overridden by TestExtension"
>      end
>      def another_method
>        "another method"
>      end
>    end
>
>    TestObject.extend TestExtension
>
>    puts TestObject.my_method      #=> "override me"
>    puts TestObject.another_method #=> "another method"
>
> Why can't I get TestObject to use my_method from TestExtension?

Because we don't have Cuts ;-)

Okay a more presently practical answer. You can use a hack like:

    module TestExtension
      def self.included(base)
        base.module_eval do
          def my_method
            "overridden by TestExtension"
          end
        end
      end
      def another_method
        "another method"
      end
    end

T.