LocChat/server/database/migrations/1638307700052-AddRoles.ts

import { MigrationInterface, QueryRunner, Table, TableForeignKey } from 'typeorm';

export class AddRoles1638307700052 implements MigrationInterface {
  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.createTable(
      new Table({
        name: 'role',
        columns: [
          {
            name: 'id',
            type: 'int',
            isPrimary: true,
            isGenerated: true,
          },
          {
            name: 'key',
            type: 'text',
            isNullable: false,
          },
        ],
      }),
    );

    await queryRunner.createTable(
      new Table({
        name: 'user_role',
        columns: [
          {
            name: 'id',
            type: 'int',
            isPrimary: true,
            isGenerated: true,
          },
          {
            name: 'userId',
            type: 'int',
            isNullable: false,
          },
          {
            name: 'roleId',
            type: 'int',
            isNullable: false,
          },
        ],
      }),
    );

    await queryRunner.createForeignKey(
      'user_role',
      new TableForeignKey({
        columnNames: ['userId'],
        referencedColumnNames: ['id'],
        referencedTableName: 'user',
        onDelete: 'CASCADE',
      }),
    );

    await queryRunner.createForeignKey(
      'user_role',
      new TableForeignKey({
        columnNames: ['roleId'],
        referencedColumnNames: ['id'],
        referencedTableName: 'role',
        onDelete: 'CASCADE',
      }),
    );
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.dropTable('user_role');
    await queryRunner.dropTable('role');
  }
}