module.exports = (sequelize, DataTypes) => { var Album = sequelize.define('Album', { name: DataTypes.STRING, storeLinks: DataTypes.JSON, }); Album.associate = function (models) { models.Album.belongsToMany(models.Song, { through: "SongAlbums" }) models.Album.belongsToMany(models.Artist, { through: "AlbumArtists" }) }; return Album; };