小编Cam*_*son的帖子

我目前正在将所有过时的代码迁移到最新版本的 firebase，当我更新 firebase 依赖项时，它给了我一个错误，即没有为“documentreference”类型定义方法“setData”。

class DatabaseService {

  final String uid;
  DatabaseService({ this.uid });

  // Collection reference
  // final CollectionReference brewCollection = FirebaseFirestore.instance.collection('brews');
  final CollectionReference<Map<String, dynamic>> brewCollection = FirebaseFirestore.instance.collection('brews');



  Future updateUserData(String sugars, String name, int strength) async {
    return await brewCollection.doc(uid).setData({
      'sugars' : sugars,
      'name'  : name,
      'strength' : strength
    });
  }


  // Brew list from snapshot
  List<Brew> _brewListFromSnapshot(QuerySnapshot snapshot) {
    return snapshot.docs.map((doc){
      return Brew(
          name: doc.data['name'] ?? '',
          strength: doc.data['strength'] ?? 0,
          sugars: doc.data['sugars'] ?? '0'
      );
    }).toList();
  }

  // …