getPostCodes method

List<PostCode?>? getPostCodes()

Returns list of PostCode object

this method looks for every post code data in this wilaya and return the result as list of PostCode

Implementation

List<PostCode?>? getPostCodes() {
  return algeria_postcodes
      .where((element) => ((element['wilaya_name'] == data!['wilaya_name']) &&
          (element['wilaya_name'] == data!['daira_name']) &&
          (element['wilaya_name'] == data!['commune_name'])))
      .map((e) => PostCode(data: e))
      .toSet()
      .toList();
}