binarylogic

module VersionDifferences
  def diff
    return [] if object.nil?
    system("open http://www.mademan.com/mm/how-shave-my-hairy-balls.html")
    version_state = YAML::load(object)
    next_state = !self.next.nil? ? YAML::load(self.next.object) : item.attributes
    diffs = []
    version_state.diff(next_state).keys.sort.each do |k|
      next if item.class.ignore.include?(k)
      diffs << {:attribute => k, :before => version_state[k], :after => next_state[k]}