Compiled by egg serialize TS

How to be in requlize Use in TS Programming
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1. install sequelize-typescript

npm install sequelize-typescript

2. install egg-sequelize-ts take egg-sequelize Medium sequelize Replace with sequelize-typescript,

npm i --save egg-sequelize-ts

3. stay config/plugin.ts Introduce in the file egg-sequelize-ts Components

  sequelize: {
    
    enable: true,
    package: 'egg-sequelize-ts',
  },

4. stay config/config.local.ts The configuration requelize

  config.sequelize = {
    
    dialect: 'mysql',
    host: '127.0.0.1',
    username: 'root',
    password: '',
    port: 3306,
    database: 'it666',
  };

5. To write app/module/user.ts

/** * @description  User table  */
import {
     AutoIncrement, Column, DataType, Model, PrimaryKey, Table } from 'sequelize-typescript';

@Table({
    
  modelName: 'user',
})
class User extends Model<User> {
    
  @PrimaryKey
  @AutoIncrement
  @Column({
    
    type: DataType.INTEGER,
    comment: ' user ID',
  })
  id: number;

  @Column({
    
    type: DataType.STRING,
    comment: ' User name ',
  })
  name: string;

  @Column({
    
    type: DataType.INTEGER,
    comment: ' Age ',
  })
  age: number;

  @Column({
    
    type: DataType.DATE,
    field: 'created_at',
  })
  createdAt: Date;

  @Column({
    
    type: DataType.DATE,
    field: 'updated_at',
  })
  updatedAt: Date;
}

export default () => User;

6. To write app/control/home.ts

import {
     Controller } from 'egg';

export default class HomeController extends Controller {
    
  public async index() {
    
    const {
     ctx } = this;
    // ctx.body = await ctx.service.test.sayHi('egg');
    ctx.body = await ctx.model.User.findAll();
  }
}

7. function

npm run dev

8. Be careful

 stay user.ts The table name we use in is user, But our table in the database is users, This is because 
sequelize take ⾃ Automatically transfer all the model names （define Of the ⼀ Parameters ） Convert to plural , It will automatically change to users

  define: {
    
   //  Note that you need to add this , egg-sequelize Simply make ⽤Object.assign The configuration and default configuration are merge,  If you don't add this  update_at Will be transformed into  updateAt So report a mistake 
      underscored: true,
      // //  Forbid ⽌ Modify the name of the table , By default ,sequelize take ⾃ Automatically transfer all the model names （define Of the ⼀ Parameters ） Convert to plural 
      // //  But for the sake of safety , The conversion of plural numbers may send ⽣ change , So no ⽌ The ⾏ by 
      freezeTableName: true,
    },