地理空间查询，查找用户坐标属于多个城市坐标的消息

Question

我有以下收藏：

消息收集

[{
    _id: ObjectId("5ca432dcac7e52100bb7589b"),
    message: "Hello"
},
{
    _id: ObjectId("5ca432dcac7e52100bb7579b"),
    message: "Hi There"
}]

促进消息收集

[{
    _id: ObjectId(),
    msgId: ObjectId("5ca432dcac7e52100bb7589b"),
    "filter": {
        "location": {
            "type": "miles",
            "miles": 20,
            "cities": [{
                "name": "Rajkot",
                "_id": ObjectId(),
                "location": {
                    "type": "point",
                    "coordinates": [70.8021599,
                    22.3038945]
                }
            },
            {
                "name": "Ahmedabad",
                "_id": ObjectId(),
                "location": {
                    "type": "point",
                    "coordinates": [72.5713621,
                    23.022505]
                }
            }]
        }
    }
}]

用户集合

{
    _id: ObjectId(),
    name: "user 1",
    "location": {
        "coordinates": [72.5351,
        23.1105],
        "type": "Point"
    }
}

我想为所有半径已定义的城市找到属于升级消息边界的消息。

例如属于“ Rajkot”城市边界（市中心20英里）的用户

我一直在寻找$geoWithin，但它是针对用户半径的，我希望它可以与城市半径一起使用。

{
    $match: {
        "promotedMessage.filter.location.cities.location.coordinates": {
            $geoWithin: {
                $centerSphere: [[72.5351, 23.1105], 5000 / 3963.2]
            }
        }
    }
}