const Sequelize = require('sequelize'); module.exports = (sequelize) => { class Phone extends Sequelize.Model { static associate(db) { Phone.belongsTo(db.Person, { onDelete: 'cascade' }); }; } Phone.init({ number: Sequelize.STRING, type: Sequelize.ENUM('home', 'work') }, { sequelize, modelName: 'Phone' }); return Phone; };