const Category = require('./Category'); const App = require('./App'); const Bookmark = require('./Bookmark'); const associateModels = () => { // Category <> App Category.hasMany(App, { as: 'apps', foreignKey: 'categoryId' }); App.belongsTo(Category, { foreignKey: 'categoryId' }); // Category <> Bookmark Category.hasMany(Bookmark, { foreignKey: 'categoryId', as: 'bookmarks' }); Bookmark.belongsTo(Category, { foreignKey: 'categoryId' }); } module.exports = associateModels;