serialize method

String serialize()

Implementation

String serialize() {
  var out = StringBuffer();
  out..write('RRULE:FREQ=$frequency');

  if (untilDate != null) {
    out.write(';UNTIL=${utils.formatDateTime(untilDate!)}');
  }
  if (count > 0) {
    out.write(';COUNT=$count');
  }
  if (interval > 0) {
    out.write(';INTERVAL=$interval');
  }
  if (weekday > 0 && weekday < 8) {
    out.write(';WKST=${weekdays[weekday - 1]}');
  }
  out.writecrlf('');
  return out.toString();
}