Ruby Module

ruby-module.rb

module ToFile
  def filename
    "object_#{self.object_id}.txt"
  end
  def to_f
    File.open(filename, 'w') {|f| f.write(to_s)}
  end
end
class Person
  include ToFile
  attr_accessor :name
  def initialize(name)
    @name = name
  end
  def to_s
    name
  end
end
Person.new('Kevin').to_f