树mongodb中的递归跟踪

Question

假设我的结构为;

[
    {id: 12, name: "alex" , children: [ 1, 2]},
    {id: 1, name: "felix" , children: [ 17]},
    {id: 17, name: "hannah" , children: []},
    {id: 2, name: "jonnah" , children: [ 7]},
    {id: 7, name: "tom" , children: [19]},
    {id: 19, name: "angelica" , children: []}
]

当我输入id: 12时，我想以“

”的形式返回

{
   "name":"alex",
   "children":[
      {
         "name":"felix",
         "children":[
            {
               "name":"hannah",
               "children":[

               ]
            }
         ]
      },
      {
         "name":"jonnah",
         "children":[
            {
               "name":"tom",
               "children":[
                  {
                     "name":"angelica",
                     "children":[

                     ]
                  }
               ]
            }
         ]
      }
   ]
}

我想在mongodb查询中执行此操作。是否可以在mongodb查询中递归跟踪树？

我尝试了$graphLookup;

db.test.aggregate([
    {

         $graphLookup: {
            from: "test",
            startWith: "$children",
            connectFromField: "children",
            connectToField: "id",
            as: "list"
         }
    }
]).pretty()

但是返回为;

{
    "_id" : ObjectId("58cff1f823d40a3744b73f69"),
    "id" : 12,
    "name" : "alex",
    "children" : [
        1,
        2
    ],
    "list" : [
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6e"),
            "id" : 19,
            "name" : "angelica",
            "children" : [ ]
        },
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6a"),
            "id" : 1,
            "name" : "felix",
            "children" : [
                17
            ]
        },
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6b"),
            "id" : 17,
            "name" : "hannah",
            "children" : [ ]
        },
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6c"),
            "id" : 2,
            "name" : "jonnah",
            "children" : [
                7
            ]
        },
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6d"),
            "id" : 7,
            "name" : "tom",
            "children" : [
                19
            ]
        }
    ]
}
{
    "_id" : ObjectId("58cff1f823d40a3744b73f6a"),
    "id" : 1,
    "name" : "felix",
    "children" : [
        17
    ],
    "list" : [
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6b"),
            "id" : 17,
            "name" : "hannah",
            "children" : [ ]
        }
    ]
}
{
    "_id" : ObjectId("58cff1f823d40a3744b73f6b"),
    "id" : 17,
    "name" : "hannah",
    "children" : [ ],
    "list" : [ ]
}
{
    "_id" : ObjectId("58cff1f823d40a3744b73f6c"),
    "id" : 2,
    "name" : "jonnah",
    "children" : [
        7
    ],
    "list" : [
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6e"),
            "id" : 19,
            "name" : "angelica",
            "children" : [ ]
        },
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6d"),
            "id" : 7,
            "name" : "tom",
            "children" : [
                19
            ]
        }
    ]
}
{
    "_id" : ObjectId("58cff1f823d40a3744b73f6d"),
    "id" : 7,
    "name" : "tom",
    "children" : [
        19
    ],
    "list" : [
        {
            "_id" : ObjectId("58cff1f823d40a3744b73f6e"),
            "id" : 19,
            "name" : "angelica",
            "children" : [ ]
        }
    ]
}
{
    "_id" : ObjectId("58cff1f823d40a3744b73f6e"),
    "id" : 19,
    "name" : "angelica",
    "children" : [ ],
    "list" : [ ]
}

这不是我想要的确切返回类型。

EDIT2： 我希望$project列表元素，如果子列表中包含list.id。

我的意思是"name" : "alex"我只想在列表中加入id: 1和id: 2。我该如何添加这个条件？

db.test.aggregate([
    {

         $graphLookup: {
            from: "test",
            startWith: "$children",
            connectFromField: "children",
            connectToField: "id",
            as: "list"
         }
    },
    {
        $project: {
            id: 1, 
            _id: 0,
            "children" : 1,
            list: 1,
            //"children" : {$in : ["$list.id"]}
        }

    }
]).pretty()