内部联接查询的类别和子类别的组

Question

我在 mongodb 中具有这样的收藏集。

[
    {
        "_id": 1, "name": "drinks", isActive: 1
    }, {
        "_id": 2, "name": "coke", isActive: 1, categoryId: 1
    }, {
        "_id": 3, "name": "fanta", isActive: 1, categoryId: 1
    }, {
        "_id": 4, "name": "cloths", isActive: 1
    }
]

在此集合中，如果存在“ categoryId”，则表示它不是主要类别，而是子类别 所以我想列出类别下的所有子类别，并且我想要在nodejs中这样的结果 猫鼬

我需要的输出

[
    {
        _id: 1,
        name: "drinks",
        isActive: 1,
        subcategories: [{ "_id": 3, "name": "fanta", isActive: 1, categoryId: 1 },
        { "_id": 2, "name": "coke", isActive: 1, categoryId: 1 }],

    }, {
        "_id": 4, "name": "cloths", isActive: 1, subcategories: []
    }
]