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我尝试Official Mongo c# 2.0 driver通过以下代码执行批量更新操作：

 var query = 
 Builders<Profile>.Filter.In(p => p.userId, listBounce.Values.ToList()) &
 Builders<Profile>.Filter.In(p => p.ID,  listBounce.Keys.Select(x=> new ObjectId(x)).
 ToList());

 var update = Builders<Profile>.Update.Set(p => p.MailLists[-1].Status, (int)wrongEmailStatusAssetId);

 dbCollection.UpdateManyAsync(query, update).Wait();

但是出现了以下错误

{"A write operation resulted in an error.\r\n  
The positional operator did not find the match needed from the query.   
Unexpanded update: p2l.$.status"}

我需要更新与查询匹配的数组中每个元素的属性。文件结构为：

{
    "_id" : ObjectId("55eeb5da965bb036984110b9"),
    "created" : ISODate("2015-09-08T10:17:59.784Z"),
    "userId" : 13929,
    "email" : "go-get@yandex.ru",
    "firstName" : "Skrillex",
    "lastName" : "Skrillex",
    "phoneNumber" : "",
    "isUnsubscribed" : false,
    "isAboveLimit" : false,
    "status" : 0,
    "userAgent" : 9760,
    "isDeleted" : false,
    "p2l" : [ 
        {
            "listId" : 45165,
            "status" : 131,
            "subscriptionDate" : ISODate("2015-09-04T06:24:55.763Z")
        }
    ]
}
4

1 回答 1

0

只需添加Builders<Profile>.Filter.Exists(p=>p.MailLists)，query问题就可以解决。

于 2015-09-08T15:05:32.423 回答