相关疑难解决方法(0)

我想在嵌套数组中添加新数据

我的文件是:

{
  "username": "erkin",
  "email": "erkin-07@hotmail.com",
  "password": "b",
  "playlists": [
    {
      "_id": 58,
      "name": "asdsa",
      "date": "09-01-15",
      "musics": [
        {
          "name": "INNA - Cola Song (feat. J Balvin)",
          "duration": "3.00"
        },
        {
          "name": "blabla",
          "duration": "3.00"
        }
      ]
    }
  ]
}

我想在此播放列表部分添加音乐:

{
  "username": "erkin",
  "email": "erkin-07@hotmail.com",
  "password": "b",
  "playlists": [
    {
      "_id": 58,
      "name": "asdsa",
      "date": "09-01-15",
      "musics": [
        {
          "name": "INNA - Cola Song (feat. J Balvin)",
          "duration": "3.00"
        },
        {
          "name": "blabla",
          "duration": "3.00"
        },
        { …

我试图更新嵌套数组中的值,但无法使其工作.

我的目标是这样的

 {
    "_id": {
        "$oid": "1"
    },
    "array1": [
        {
            "_id": "12",
            "array2": [
                  {
                      "_id": "123",
                      "answeredBy": [],
                  },
                  {
                      "_id": "124",
                      "answeredBy": [],
                  }
             ],
         }
     ]
 }

我需要将值推送到"answersBy"数组.

在下面的例子中,我尝试将"success"字符串推送到"123 _id"对象的"answersBy"数组,但它不起作用.

callback = function(err,value){
     if(err){
         res.send(err);
     }else{
         res.send(value);
     }
};
conditions = {
    "_id": 1,
    "array1._id": 12,
    "array2._id": 123
  };
updates = {
   $push: {
     "array2.$.answeredBy": "success"
   }
};
options = {
  upsert: true
};
Model.update(conditions, updates, options, callback);

我找到了这个链接,但它的答案只说我应该使用类似对象的结构而不是数组.这不适用于我的情况.我真的需要我的对象嵌套在数组中

如果你能在这里帮助我会很棒.我花了好几个小时来搞清楚这一点.

先感谢您!