Sequelize Node Js Seeder file with Many-to-Many Association - node.js

Question

I would like to find out what is the right way to add a many-to-many relation when seeding records with sequelize-cli. Now I understand that the easiest way to do this is to create another seeder file and manually set the values but is there a way to make some changes to my 2_user seeder file so that when a user is seeded with some value given for the role it automatically makes a record in the user_roles table. So basically same as the user.setRoles() one can use but in the seeder files. Any help is much appreciated.
Models
user.model.js
'use strict';
const { Model } = require('sequelize');
module.exports = (sequelize, DataTypes) => {
class User extends Model {
static associate(models) {
User.belongsToMany(models.Role, {
through: 'user_roles',
foreignKey: 'user_id',
otherKey: 'role_id',
onDelete: 'CASCADE',
onUpdate: 'CASCADE',
});
User.hasMany(models.User_Role);
User.hasMany(models.Address, {
foreignKey: 'user_id',
onDelete: 'CASCADE',
onUpdate: 'CASCADE',
});
}
}
User.init(
{
user_id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
},
email: DataTypes.STRING,
password: DataTypes.STRING,
bio: DataTypes.STRING,
activity_status: DataTypes.BOOLEAN,
},
{
sequelize,
modelName: 'User',
}
);
return User;
};
role.model.js
'use strict';
const { Model } = require('sequelize');
module.exports = (sequelize, DataTypes) => {
class User extends Model {
static associate(models) {
User.belongsToMany(models.Role, {
through: 'user_roles',
foreignKey: 'user_id',
otherKey: 'role_id',
onDelete: 'CASCADE',
onUpdate: 'CASCADE',
});
User.hasMany(models.User_Role);
User.hasMany(models.Address, {
foreignKey: 'user_id',
onDelete: 'CASCADE',
onUpdate: 'CASCADE',
});
}
}
User.init(
{
user_id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
},
email: DataTypes.STRING,
password: DataTypes.STRING,
bio: DataTypes.STRING,
activity_status: DataTypes.BOOLEAN,
},
{
sequelize,
modelName: 'User',
}
);
return User;
};
user_role.model
'use strict';
const { Model } = require('sequelize');
module.exports = (sequelize, DataTypes) => {
class User_Role extends Model {
static associate(models) {
User_Role.belongsTo(models.User, {
foreignKey: 'user_id',
});
User_Role.belongsTo(models.Role, {
foreignKey: 'role_id',
});
}
}
User_Role.init(
{
user_role_id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false,
},
},
{
sequelize,
modelName: 'User_Role',
}
);
return User_Role;
};
Migrations
1-create-user
'use strict';
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.createTable('users', {
user_id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER,
},
email: {
type: Sequelize.STRING,
unique: true,
},
password: {
type: Sequelize.STRING,
},
bio: {
type: Sequelize.STRING,
},
activity_status: {
type: Sequelize.BOOLEAN,
},
createdAt: {
allowNull: false,
type: Sequelize.DATE,
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE,
},
});
},
async down(queryInterface, Sequelize) {
await queryInterface.dropTable('users');
},
};
3-create-role
'use strict';
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.createTable('roles', {
role_id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
unique: true,
type: Sequelize.INTEGER,
},
user_type: {
type: Sequelize.STRING,
},
createdAt: {
allowNull: false,
type: Sequelize.DATE,
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE,
},
});
},
async down(queryInterface, Sequelize) {
await queryInterface.dropTable('roles');
},
};
6-create-user_role
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.createTable('user_roles', {
user_role_id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER,
},
user_id: {
type: Sequelize.INTEGER,
references: { model: 'users', key: 'user_id' },
onDelete: 'CASCADE',
},
role_id: {
type: Sequelize.INTEGER,
references: { model: 'roles', key: 'role_id' },
onDelete: 'CASCADE',
},
createdAt: {
allowNull: false,
type: Sequelize.DATE,
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE,
},
});
},
async down(queryInterface, Sequelize) {
await queryInterface.dropTable('user_roles');
},
};
Seeders
1_role
'use strict';
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.bulkInsert(
'roles',
[
{
user_type: 'courier',
createdAt: new Date(),
updatedAt: new Date(),
},
{
user_type: 'receiver',
createdAt: new Date(),
updatedAt: new Date(),
},
{
user_type: 'donor',
createdAt: new Date(),
updatedAt: new Date(),
},
{
user_type: 'admin',
createdAt: new Date(),
updatedAt: new Date(),
},
],
{}
);
},
async down(queryInterface, Sequelize) {
await queryInterface.bulkDelete('Roles', null, {});
},
};
2_user
('use strict');
var bcrypt = require('bcryptjs');
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.bulkInsert(
'users',
[
{
email: 'courier#email.com',
password: bcrypt.hashSync('PassWord123#', 10),
bio: 'This is a courier type user!',
activity_status: true,
createdAt: new Date(),
updatedAt: new Date(),
role_id: 1,
},
{
email: 'donor#email.com',
password: bcrypt.hashSync('PassWord123#', 10),
bio: 'This is a donor type user!',
activity_status: true,
createdAt: new Date(),
updatedAt: new Date(),
},
{
email: 'receiver#email.com',
password: bcrypt.hashSync('PassWord123#', 10),
bio: 'This is a Receiver type user!',
activity_status: true,
createdAt: new Date(),
updatedAt: new Date(),
},
{
email: 'admin#email.com',
password: bcrypt.hashSync('PassWord123#', 10),
bio: 'This is a Admin type user!',
activity_status: true,
createdAt: new Date(),
updatedAt: new Date(),
},
],
{}
);
},
async down(queryInterface, Sequelize) {
await queryInterface.bulkDelete('Users', null, {});
},
};