how to override a function in rails

gistfile1.txt

How to override a function in rails from Yuhuda Katz. I'm new to ruby and this always confuses me. nice to have a good example from a guru.

class Foo < ActiveRecord::Base
  include FooBar
end

module FooBar
  def self.included(base)
    base.extend(ClassMethods)
  end
 
  module ClassMethods
    def find(*args)
      super
      #...or whatever
    end
  end
end