handle method

@override bool handle(Map<String, dynamic> info)

Handle the validation, the info variable will contain the following: info'rule' = Validation rule i.e "min". info'data' = Data the user has passed into the validation. info'message' = Overriding message to be displayed for validation (optional).

Implementation

@override
bool handle(Map<String, dynamic> info) {
  super.handle(info);
  dynamic date = info['data'];

  if (date is String) {
    DateTime? dateParsed = DateTime.tryParse(date);
    if (dateParsed == null) {
      return false;
    }
    return dateParsed.isInFuture();
  }

  if (date is DateTime) {
    return date.isInFuture();
  }
  return false;
}