import { QueryInterface, DataTypes } from "sequelize"; module.exports = { up: (queryInterface: QueryInterface) => { return queryInterface.addColumn("Contacts", "companyId", { type: DataTypes.INTEGER, references: { model: "Companies", key: "id" }, onUpdate: "CASCADE", onDelete: "SET NULL" }); }, down: (queryInterface: QueryInterface) => { return queryInterface.removeColumn("Contacts", "companyId"); } };