A better empty? for AR associations

gistfile1.rb

class  ActiveRecord::Associations::AssociationCollection
  # Does the AssociationCollection contains entries?
  def empty?(*args)
    if fetch_first_or_last_using_find?(args)
      if !args.last.is_a?(Hash)
        args.push :select => "1"
      elsif (!args.last[:select])
        args.last = { :select => "1" }.update(args.last)
      end
      
      find(:first, *args).nil?
    else
      load_target unless loaded?
      @target.first(*args).nil?
    end
  end
end