From: petermichaux@...
Date: 2005-11-05T03:07:09+09:00
Subject: Re: Class and Mixin with same method name problem


Robert Klemme wrote:
> petermichaux@yahoo.com wrote:
> > How do I call the Burp whoAmI? method?
>
> You don't (although you could with
> Burp.instance_method(:whoAmI?).bind(self).call).  Messing like this with names is not advisable.

Good to know that there is a way to do this. Too bad it is so messy
though. I'm thinking about using two Rails plugins in one model class.
Since rails has a magic after_find callback method I was thinking about
using this in each plugin since the plugins can be used independently.
Since my model must call both of these methods I will have a third
after_find callback method in the model that calls the other two. Now
why doesn't the example below make two who_am_i calls? One to Burp and
one to Debug. It only calls Burp.

> Note also that by
> convention a) methods ending in a question mark are reserved for boolean
> queries and b) Ruby uses lowe_case_method_names. :-)

Good to know. I just cut and pasted the example from the the first
edition of Ruby Programming

http://www.ruby-doc.org/docs/ProgrammingRuby/html/tut_modules.html

Peter


module Debug
  def who_am_i
    "Debug"
  end
end

module Burp
  def who_am_i
    "Burp"
  end
end

class EightTrack
  include Burp
  include Debug
  def who_am_i
    Debug.instance_method(:who_am_i).bind(self).call
    Burp.instance_method(:who_am_i).bind(self).call
  end
end

et = EightTrack.new

p et.who_am_i