adding introspection to all ActiveRecord methods (putting method's name when it's invoked)

active_record_introspection.rb

module ActiveRecord
  Base.singleton_methods.each do |m|
    Base.class_eval <<-EOS
      class << self
        puts "redefining #{m}"

        define_method "#{m}_with_introspection" do |*args|
          puts "#{m}"
          send(:"#{m}_without_introspection", *args)
        end

        alias_method :"#{m}_without_introspection", :"#{m}"
        alias_method :"#{m}", :"#{m}_with_introspection"
      end
    EOS
  end
end