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 data = info['data'];
  if (data == null) {
    return false;
  }
  if (data is List) {
    return data.isNotEmpty;
  }
  if (data is Map) {
    return data.isNotEmpty;
  }
  return (data.toString() != "");
}