isValidKuralNumberRange function

Implementation

String isValidKuralNumberRange({required int? from, required int? to}){
  if(from == null){
    return 'Kural from number should not be null.';
  }
  if(to == null){
    return 'Kural to number should not be null.';
  }
  if(from == to){
    return 'From and To range should not be same.';
  }
  if(from == 0 || from < 0 || from > 1329){
    return 'Kural from number should be between 1 - 1329.';
  }
  if(to == 0 || to < 0 || to > 1330){
    return 'Kural to number should be between 1 - 1330.';
  }
  return '';
}