The User & Todo Models

First of all, if you have downloaded the source code of the previous tutorial, compile and run the existing migrations.

npm run build

npm run migrations

The User Model

Then open the user.entity.ts file from the src/app/entities directory. The User entity is the main class used by the framework's authentication system.

Add the email and password properties and the setPassword method.

import { hashPassword } from '@foal/core';

import { BaseEntity, Column, Entity, PrimaryGeneratedColumn } from 'typeorm';

@Entity()

export class User extends BaseEntity {

@PrimaryGeneratedColumn()

id: number;

@Column({ unique: true })

email: string;

@Column()

password: string;

async setPassword(password: string) {

this.password = await hashPassword(password);

}

}

// This line is required. It will be used to create the SQL session table.

export { DatabaseSession } from '@foal/typeorm';

The setPassword method uses hashPassword to hash passwords before storing them in the database. You must use this method to set a password instead of directly assigning a value to the password attribute.

The Todo Model

The Todo model defined in the previous tutorial now needs a owner property to know which user it belongs to.

Replace the content of todo.entity.ts.

import { BaseEntity, Column, Entity, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';

import { User } from './user.entity';

@Entity()

export class Todo extends BaseEntity {

@PrimaryGeneratedColumn()

id: number;

@Column()

text: string;

@ManyToOne(type => User)

owner: User;

}

In the database the todo table will look like this:

+------------+-----------+-------------------------------------+

| todo |

+------------+-----------+-------------------------------------+

| id | integer | PRIMARY KEY AUTO_INCREMENT NOT NULL |

| text | varchar | NOT NULL |

| ownerId | integer | |

+------------+-----------+-------------------------------------+

The Migrations

The last step is to create/update the tables in the database. As in the first tutorial, you will use migrations for this.

Generate the migrations from the entities.

npm run makemigrations

A new file is added in src/migrations.

import {MigrationInterface, QueryRunner} from "typeorm";

export class migration1562765487944 implements MigrationInterface {

public async up(queryRunner: QueryRunner): Promise<void> {

// SQL queries...

}

public async down(queryRunner: QueryRunner): Promise<void> {

// SQL queries...

}

}

Then run the new migration file.

npm run migrations