module SWrapper
  def self.included(base)
    base.send(:include, Wrap)
    target = "find"
    feature= "wrapping"
    base.send(:alias_method, "#{target}_without_#{feature}", target)
    base.send(:alias_method, target, "#{target}_with_#{feature}")
  end

  module Wrap
    def find_with_wrapping(*args, &block)
      puts "Test"
      find_without_wrapping(*args, &block)
    end
  end
end

class Person < ActiveRecord::Base
  include SWrapper
end

doing Person.find 999999999 --> #<NameError: undefined method `find' for class `Person'>