Reactjs 如何使用.Aggregate从多个集合中获取数据，包括使用Mongoose+NextJS的SUM值

我正在try 返回来自2个模式的数据.其中一个包含"玩家"的信息，另一个包含每个"玩家"按游戏的"得分"信息.

This is my 'Player' schema:个

import { Schema, model, models } from "mongoose";

const PlayerSchema = new Schema({
    creator: {
        type: Schema.Types.ObjectId,
        ref: 'User',
    },

    name: {
        type: String,
        require: [ true, 'Name is required!' ],
    },

    email: {
        type: String,
        unique: [ true, 'Email already exist!' ],
        required: [ true, 'Email is required!' ],
    }
});

const Player = models.Player || model( 'Player', PlayerSchema );

export default Player;

This is my 'Score' schema:. (note this one also contain a subdocuments content).

import { Schema, model, models } from "mongoose";

const scoresToSave = new Schema({
    player: {
        type: Schema.Types.ObjectId,
        ref: 'Player',
    },
    score: { type: Number }
});

const ScoreSchema = new Schema({
    creator: {
        type: Schema.Types.ObjectId,
        ref: 'User',
    },

    tournament: {
        type: Schema.Types.ObjectId,
        ref: 'Tournament',
    },

    date: {
        type: Date,
        require: [ true, 'Date is required!' ],
    },

    scores: [scoresToSave],
});

const Score = models.Score || model( 'Score', ScoreSchema );

export default Score;

This is an example of the actual documents saved in the Collections.个

Players:个

{
"_id":{"$oid":"652f3470729e8d8a59b221dd"},
"creator":{"$oid":"652af415729e8d8a59b2202f"},
"name":"Player 1",
"email":"player1@email.com"
}

{
"_id":{"$oid":"652f36c9f6ad40c3aedf0cdf"},
"creator":{"$oid":"652af415729e8d8a59b2202f"},
"name":"Player 2",
"email":"player2@email.com"
}

Scores个

{
"_id":{"$oid":"65386103b5e6b094e0980f2a"},
"creator":{"$oid":"652af415729e8d8a59b2202f"},
"tournament":{"$oid":"652f2515729e8d8a59b221b6"},
"date":{"$date":{"$numberLong":"1698192000000"}},
"scores":[
  {
    "player":{"$oid":"652f3470729e8d8a59b221dd"},
    "score":{"$numberInt":"10"},
    "_id":{"$oid":"65386103b5e6b094e0980f2b"}
  },
  {
    "player":{"$oid":"652f36c9f6ad40c3aedf0cdf"},
    "score":{"$numberInt":"20"},
    "_id":{"$oid":"65386103b5e6b094e0980f2c"}
  }
]
}

{
"_id":{"$oid":"6538611bb5e6b094e0980f59"},
"creator":{"$oid":"652af415729e8d8a59b2202f"},
"tournament":{"$oid":"652f2515729e8d8a59b221b6"},
"date":{"$date":{"$numberLong":"1698192000000"}},
"scores":[
  {
    "player":{"$oid":"652f3470729e8d8a59b221dd"},
    "score":{"$numberInt":"11"},
    "_id":{"$oid":"6538611bb5e6b094e0980f5a"}
  },
  {
    "player":{"$oid":"652f36c9f6ad40c3aedf0cdf"},
    "score":{"$numberInt":"21"},
    "_id":{"$oid":"6538611bb5e6b094e0980f5b"}
  }
]
}

This is the data structure that I want to create as response:个

[
  {
    _id: new ObjectId("652f3470729e8d8a59b221dd"),
    name: 'Player 1',
    email: 'player1@email.com',
    totalScore: 21
  },
  {
    _id: new ObjectId("6536f85cb5e6b094e09809f1"),
    name: 'Player 2',
    email: 'player2@email.com',
    totalScore: 41
  },
]

My actual code to try to get that data structure is:个

import { connectToDB } from "@utils/database";
import Player from "@models/player";

export const GET = async ( req ) => {
    const resources = {
        "_id": "$_id",
        name: { "$first": "$name" },
        email: { "$first": "$email" },
        "totalScore": { "$sum": "scores.scores.score" },
    };

    try {
        await connectToDB();

        const players = await Player.aggregate([
            {
                $group: resources
            }, {
                $lookup: {
                    from: "Scores",
                    localField: "_id",
                    foreignField: "scores.player",
                    as: "score"
                }
            }
        ]);

        console.log('TRY: ', players);

        return new Response(
            JSON.stringify(players),
            {status: 200}
        );
    } catch (error) {
        return new Response(
            "Failed to fetch all players",
            {status: 500}
        );
    }
}

This is what 100 returns:

TRY:  [
  {
    _id: new ObjectId("652f3470729e8d8a59b221dd"),
    name: 'Player 1',
    email: 'player1@email.com',
    totalScore: 0,
    score: []
  },
  {
    _id: new ObjectId("6536f85cb5e6b094e09809f1"),
    name: 'Player 2',
    email: 'player2@email.com',
    totalScore: 0,
    score: []
  },
]

有人能帮我弄明白我错过了什么吗？

谢谢!