Sequelize的聚合查询查出messsage表中userId字段再user表中的用户信息

// ...
import modelRelation from "./services/modelRelation";
// ...


// 同步模型和数据库
modelRelation();

// import { Sequelize } from "sequelize";
import sequelize from "./pool";

import Message from "../models/Message";
import User from "../models/User";


export default function(){
    User.hasMany(Message, {foreignKey: 'from' });
    Message.belongsTo(User, {foreignKey: 'from', targetKey: 'id', as: 'from_user', constraints: false});

    sequelize.sync();
}