如何将地图数据添加到云端火场中？

Question

我想将用户的名字添加为包含'firstName‘和'lastName’的地图。我已经有了用户模型和名称模型，下面是代码：

name_model.dart

class Name {
  final String firstName;
  final String lastName;

  Name({
    required this.firstName,
    required this.lastName,
  });

  Map<String, dynamic> toMap() {
    return {
      'firstName': firstName,
      'lastName': lastName,
    };
  }

  Name.fromMap(Map<String, dynamic> nameMap)
      : firstName = nameMap['firstName'],
        lastName = nameMap['lastName'];
}

user_model.dart

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:ukk_backup/models/name_model.dart';

class User {
  final String? docId;
  final String email;
  final String password;
  final String phoneNumber;
  final Name name;

  User({
    this.docId,
    required this.email,
    required this.password,
    required this.phoneNumber,
    required this.name,
  });

  Map<String, dynamic> toMap() => {
        'docId': docId,
        'email': email,
        'password': password,
        'phoneNumber': phoneNumber,
        'name': name.toMap(),
      };
  User.fromDocumentSnapshot(DocumentSnapshot<Map<String, dynamic>> doc)
      : docId = doc.id,
        email = doc['email'],
        password = doc['password'],
        phoneNumber = doc['phoneNumber'],
        name = Name.fromMap(doc['name']);
}

当我按下“注册”按钮时，我希望将所有数据保存在云防火墙中，包括带有映射类型的名称。这是onPressed

onPressed: (() async {
 if (_formKey.currentState!.validate()) {
   DatabaseService service = DatabaseService();
   User user = User(
     email: emailController.text,
     password: passwordController.text,
     phoneNumber: phoneNumberController.text,
     name: , //what to type?
   );
   setState(() {
     _isLoading = true;
   });
   await service.addUser(user);
   setState(() {
   _isLoading = false;
   });
  }
}),

如果您发现我的一些代码不正确，或者您找到了解决方案，请告诉我。谢谢。

编辑：

database_services.dart

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:ukk_backup/models/user_model.dart';

class DatabaseService {
  final FirebaseFirestore _firestore = FirebaseFirestore.instance;

  addUser(User userData) async {
    await _firestore.collection('users').add(userData.toMap());
  }

  updateUser(User userData) async {
    await _firestore
        .collection('users')
        .doc(userData.docId)
        .update(userData.toMap());
  }

  Future<void> deleteUser(String documentId) async {
    await _firestore.collection('users').doc(documentId).delete();
  }

  Future<List<User>> retrieveUser() async {
    QuerySnapshot<Map<String, dynamic>> snapshot =
        await _firestore.collection('users').get();
    return snapshot.docs
        .map((docSnapshot) => User.fromDocumentSnapshot(docSnapshot))
        .toList();
  }
}

Answer 1

我先误解了你的问题。在我看来，你的DataBaseService课程没问题。因此，如果我是对的，您唯一的问题就是不知道如何将名称添加到UserObject中。如果这是你问题的实质，那就很简单了：

onPressed: (() async {
 if (_formKey.currentState!.validate()) {
   DatabaseService service = DatabaseService();
   User user = User(
     email: emailController.text,
     password: passwordController.text,
     phoneNumber: phoneNumberController.text,
     name: Name(firstName: firstNameController.text, lastName: lastNameController.text),
   );
   setState(() {
     _isLoading = true;
   });
   await service.addUser(user);
   setState(() {
   _isLoading = false;
   });
  }
}),