node.js - 使用 Sequelize

Question

我尝试使用 Sequelize ORM。阅读文档我看到了这个例子

const Project = sequelize.define('project', {
title: Sequelize.STRING,
description: Sequelize.TEXT
})

const Task = sequelize.define('task', {
title: Sequelize.STRING,
description: Sequelize.TEXT,
deadline: Sequelize.DATE
})

我解决了在shell Node 中实际应用。
我在命令行中启动 Node

var sequelize = require('sequelize')
sequelize.define ...

但是 Node 告诉我这是错误的， Sequelize 没有“定义”方法。
所以我想现在我的错误在哪里，我错了理解文档

Answer 1

您需要创建一个 sequelize 实例:

const Sequelize = require("sequelize");

const sequelize = new Sequelize(
  database,
  username,
  password,
  {
    host: host,
    logging: false,
    dialect: "mysql",
    port: 3306,
    pool: {
      max: 5,
      min: 0,
      idle: 10000
    }
  }
);

在那之后做定义:

const Project = sequelize.define('project', {
title: Sequelize.STRING,
description: Sequelize.TEXT
})

const Task = sequelize.define('task', {
title: Sequelize.STRING,
description: Sequelize.TEXT,
deadline: Sequelize.DATE
})