firebase - 从 Unity 中的 Firestore 获取集合？

Question

我正在尝试通过关注 this link 在 Unity 中获取一个 firestore 集合，但它给了我一个错误:

'Task' does not contain a definition for 'Documents' and no accessible extension method 'Documents' accepting a first argument of type 'Task'.

我的代码:

CollectionReference allCitiesQuery = db.Collection("MyList");
Task<QuerySnapshot> allCitiesQuerySnapshot = allCitiesQuery.GetSnapshotAsync();

foreach (DocumentSnapshot documentSnapshot in allCitiesQuerySnapshot.Documents)
      {           
          Dictionary<string, object> city = documentSnapshot.ToDictionary();
          foreach (KeyValuePair<string, object> pair in city)
          {
            Debug.Log(pair.Key + " " + pair.Value);
            //Console.WriteLine("{0}: {1}", pair.Key, pair.Value);
          }
      }
    }

我已经阅读了文档，但很少关注 Unity，因为几天前它才刚刚实现。有人可以帮我吗？

Answer 1

尝试改变

CollectionReference allCitiesQuery = db.Collection("MyList");
Task<QuerySnapshot> allCitiesQuerySnapshot = allCitiesQuery.GetSnapshotAsync();

进入

Query allCitiesQuery = db.Collection("MyList");
QuerySnapshot allCitiesQuerySnapshot = await allCitiesQuery.GetSnapshotAsync();

并确保您拥有以下所有内容:

using Firebase;
using Firebase.Firestore;
using Firebase.Extensions;