Question

这是我的确切架构：

{
"_id" : ObjectId("4fb4fd04b748611ca8da0d45"),
"Name" : "Agent name",
"City" : "XXXX",
"BranchOffice" : [{

    "_id" : ObjectId("4fb4fd04b748611ca8da0d46"),
    "Name" : "Branch name",
    "City" : "XXXX",
    "SubBranch" : [{

        "_id" : ObjectId("4fb4fd04b748611ca8da0d47"),
        "Name" : "Sub-Branch Name",
        "City" : "XXXX"
        "Users" : [{

            "_id" : ObjectId("4fb4fd04b748611ca8da0d48"),
            "Name" : "User",
            "City" : "XXXX"
        }]
    }]
}]
}

它在c＃中成功插入。插入代码在下面，但更新条件失败。

我想使用SubBranch和用户

更新字段3级和4级数组

插入代码

IMongoQuery query = Query.And(Query.EQ("_id", new ObjectId(4fb4fd04b748611ca8da0d45)),

Query.EQ("BranchOffice._id", new ObjectId(4fb4fd04b748611ca8da0d46)));

Agent agent = dc.Collection.FindOne(query);

BsonDocument branchOffice = agent.BranchOffice.Find(objId => objId._id ==    new ObjectId(4fb4fd04b748611ca8da0d46)).ToBsonDocument();

subBranch我将List对象转换为BsonDocument

文件：数组的名称，城市，_Id和用户

BsonDocument subBranchOffice = **subBranch.ToBsonDocument()**;

if (branchOffice.Contains("SubBranch"))
{
    if (branchOffice["SubBranch"].IsBsonNull)
    {
        branchOffice["SubBranch"] = new BsonArray().Add(BsonValue.Create(subBranchOffice));
    }
    else
    {                                     
        branchOffice["SubBranch"].AsBsonArray.Add(BsonValue.Create(subBranchOffice));
    }

    var update = Update.Set("BranchOffice.$.SubBranch",branchOffice["SubBranch"]); 
    SafeModeResult s = dc.Collection.Update(query, update, UpdateFlags.Upsert,SafeMode.True);
}

此处SafemodeResult为UpdateExisting = true

此处已插入选项已成功

接下来我尝试在else语句中更新。我没有得到答案

更新代码

else
{
    var queryEdit = Query.And(Query.EQ("_id", new ObjectId(4fb4fd04b748611ca8da0d45)), 

    Query.EQ("BranchOffice._id", new ObjectId(4fb4fd04b748611ca8da0d46)),
    Query.EQ("SubBranchlist._id", new ObjectId(4fb4fd04b748611ca8da0d47)));

    **//Index value 1 or 2 or 3**

    var update = Update.Set("BranchOffice.$.SubBranch."index value".Name", "sname").

    Set("BranchOffice.$.SubBranch."index value".city", "yyyyy" ?? string.Empty);
    SafeModeResult s = dc.Collection.Update(queryEdit, update, UpdateFlags.None,SafeMode.True);
}

此处SafemodeResult为UpdateExisting = False

此处更新的选项失败

请解释如何解决此问题以及如何更新数组的第2和第3级

请显示任何示例

Answer 1

那里有很多，但看起来至少部分问题是你在数据和用于更新的查询之间拼写出了不同的BranchOffice，你也错过了SubBranch中的层次结构，所以你的最后一个代码示例中的queryEdit与文档不匹配。这将;

db.so.find({
    _id: ObjectId("4fb4fd04b748611ca8da0d45"),
    "BrancheOffice._id": ObjectId("4fb4fd04b748611ca8da0d46"),
    "BrancheOffice.SubBranch._id": ObjectId("4fb4fd04b748611ca8da0d47"),
}).toArray()

使用MongoDB中的C＃驱动程序更新嵌套数组

1 个答案: