流星$ pull从数组中删除 [英] meteor $pull remove from array

问题描述

我的数据库中有以下对象:

I have the following object in my database:

{
    "_id": "fTgR2YtHiZBzzqF6J",
    "following": [
        {
            "user": {
                "_id": "S4dLHRJiuHoyAp26q",
                "fb": {
                    "id": "100006681067911",
                    "name": "Helen Amffhajfgiaa Laubergskymanwitzescusonsteinsen"
                }
            },
            "date": "2013-10-01T17:25:50.305Z"
        },
        {
            "user": {
                "_id": "MAyxz4Yk5F9vh9RRy",
                "fb": {
                    "id": "100006719587007",
                    "name": "Mary Amfgaiehgkg Smithman"
                }
            },
            "date": "2013-10-11T10:47:58.898Z"
        }
    ]
}

现在我要删除

{
   "user": {
      "_id": "MAyxz4Yk5F9vh9RRy",
      "fb": {
          "id": "100006719587007",
          "name": "Mary Amfgaiehgkg Smithman"
      }
    },
    "date": "2013-10-11T10:47:58.898Z"
}

名为以下"的数组中的子文档.

subdocument from the array called "following".

我执行此操作的查询如下:

My query to do this looks like this:

 Collection.update({"_id":"fTgR2YtHiZBzzqF6J"},
 {
    "$pull": {
        "following": {
             "user": {
                 "_id": "MAyxz4Yk5F9vh9RRy"
             }
         }
     }
 });

但是什么也没发生！

有人可以指出我的错误吗?

Can someone point me towards my error?

推荐答案

我的问题是:我不得不$ pull整个对象:

My problem was: I had to $pull the whole object:

 Collection.update({"_id":"fTgR2YtHiZBzzqF6J"},
 {
    "$pull": {
        "following": {
            "user": {
                "_id": "MAyxz4Yk5F9vh9RRy",
                "fb": {
                    "id": "100006719587007",
                    "name": "Mary Amfgaiehgkg Smithman"
                }
            },
            "date": "2013-10-11T10:47:58.898Z"
        }
         }
     }
 });

并且可以不只是称呼它:

Collection.update({"_id":"fTgR2YtHiZBzzqF6J"},
 {
    "$pull": {
        "following": {
             "user": {
                 "_id": "MAyxz4Yk5F9vh9RRy"
             }
         }
     }
 });

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