Question

我正在尝试使用MongoDB，并且作为一个起点我可以为将来可能很容易扩展的聊天应用程序创建一个模式，所以我想知道这看起来是否正如我在文档中看到的那样。到目前为止，我有3个收藏用户，房间，消息。此外，我需要执行一些查询，例如从特定房间获取所有消息，获取特定用户的所有消息等等。

设计用猫鼬：

var user = new mongoose.Schema({
     username: { type: String, lowercase: true, unique: true },
     email: { type: String, lowercase: true, unique: true },
     password: String,
     is_active: { type: Boolean, default: false },
});

var room = new mongoose.Schema({
    name: { type: String, lowercase: true, unique: true },
    topic: String,
    users: [user],
    messages: [message],
    created_at: Date,
    updated_at: { type: Date, default: Date.now },
});

var message = new mongoose.Schema({
    room: room,
    user: user,
    message_line: String,
    created_at: { type: Date, default: Date.now },
});

var User = mongoose.model('User', user);
var Room = mongoose.model('Room', room);
var Message = mongoose.model('Message', message);

Answer 1

//message model
'use strict';

import mongoose from 'mongoose';
var Schema = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId;

var MessageSchema = new Schema({
    send: {
        type: ObjectId,
        ref: 'User',
        required: true
    },

    message: {
        type: String,
        required: true
    },
    date: {
        type: Date
    },
    created_by: {
        type: ObjectId,
        ref: 'User',
        required: true
    },
    thread: {
        type: ObjectId,
        ref: 'MsgThread',
        required: true
    },
    is_deleted: [{
        type: ObjectId,
        ref: 'User'
    }]
}, {
    timestamps: {
        createdAt: 'created_at',
        updatedAt: 'last_updated_at'
    }
});

export default mongoose.model('Message', MessageSchema);

//dont use rooms,,use thread like groupchat or personalChat

import mongoose from 'mongoose';
var Schema = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId;
const s3 = require("../../utils/s3");

var MsgThreadSchema = new Schema({
    users: [{
        type: ObjectId,
        ref: 'User'
    }],
    group_name: {
        type: String
    },
    created_by: {
        type: ObjectId,
        ref: 'User'
    },
    community: {
        type: ObjectId,
        ref: 'Community'
    },
    image_url: {
        type: String
    }
}, {
        timestamps: {
            createdAt: 'created_at',
            updatedAt: 'last_updated_at'
        }
    });




export default mongoose.model('MsgThread', MsgThreadSchema);

MongoDB聊天模式

1 个答案: