gistfile1.txt

  # add chars at beginning, last should be \\
  BAD_URL_CHARS = "<>\"'\r\n #:/&;,%.=?\\"

  # This id will be used in links
  def to_param
    if new_record?
      "new-milestone"
    else
      "#{id}-#{title.tr(BAD_URL_CHARS, "-")}"
    end
  end