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我有一组假装付款的状态,每个都有付款ID.

我想获取每个付款ID的最新状态.测试我创建了一些虚拟数据然后尝试查询它.我到目前为止:

[Test]
public void GetPaymentLatestStatuses()
{
    var client = new TestMongoClient();

    var database = client.GetDatabase("payments");

    var paymentRequestsCollection = database.GetCollection<BsonDocument>("paymentRequests");

    var statusesCollection = database.GetCollection<BsonDocument>("statuses");

    var payment = new BsonDocument { { "amount", RANDOM.Next(10) } };

    paymentRequestsCollection.InsertOne(payment);

    var paymentId = payment["_id"];

    var receivedStatus = new BsonDocument
                         {
                             { "payment", paymentId },
                             { "code", "received" },
                             { "date", DateTime.UtcNow }
                         };
    var acceptedStatus = new BsonDocument
                         {
                             { "payment", paymentId },
                             { "code", "accepted" },
                             { "date", DateTime.UtcNow.AddSeconds(-1) }
                         };
    var completedStatus …