demo/xinhuaribao/lib/model/news_category_model.dart

class NewsCategoryModel {
  NewsCategoryModel({
    String? catalogId,
    String? siteId,
    String? name,
    String? alias,
  }) {
    _catalogId = catalogId;
    _siteId = siteId;
    _name = name;
    _alias = alias;
  }

  NewsCategoryModel.fromJson(dynamic json) {
    _catalogId = json['catalogId'];
    _siteId = json['siteId'];
    _name = json['name'];
    _alias = json['alias'];
  }

  String? _catalogId;
  String? _siteId;
  String? _name;
  String? _alias;

  NewsCategoryModel copyWith({
    String? catalogId,
    String? siteId,
    String? name,
    String? alias,
  }) => NewsCategoryModel(
    catalogId: catalogId ?? _catalogId,
    siteId: siteId ?? _siteId,
    name: name ?? _name,
    alias: alias ?? _alias,
  );

  String? get catalogId => _catalogId;

  String? get siteId => _siteId;

  String? get name => _name;

  String? get alias => _alias;

  Map<String, dynamic> toJson() {
    final map = <String, dynamic>{};
    map['catalogId'] = _catalogId;
    map['siteId'] = _siteId;
    map['name'] = _name;
    map['alias'] = _alias;
    return map;
  }
}