From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-11-15T11:56:21+09:00
Subject: Re: Overriding methods in a class using a mixin


On Nov 14, 2008, at 3:02 PM, James Coglan wrote:

> Hi list,
> I just had this idea and thought I'd share it in case someone can  
> improve
> upon it, make it more robust. Basically, I've run into a situation a  
> few
> times where I want to override methods in a class but retain access  
> to old
> implementations, the sort of thing people like to use  
> alias_method_chain
> for. I tend to favour this approach, though:
>
> class Foo
>  meth = instance_method(:foo)
>  define_method(:foo) do |some, args|
>    result = meth.bind(self).call(some, args)
>    # do extra stuff...
>  end
> end


alias_method_chain_is_crap_because_it_leads_to_madness_like_this

your method is *ok* but it chops the method in half - dropping blocks  
on the floor

check this out

http://drawohara.com/post/7241442/ruby-saner-way-to-redefine-methods

a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama