module.exports = (sequelize, DataTypes) => {
    var Tag = sequelize.define('Tag', {
        name: DataTypes.STRING,
    });

    Tag.associate = function (models) {
        models.Tag.hasOne(models.Tag, { as: 'parent' });
        models.Tag.belongsToMany(models.Artist, { through: 'ArtistTags' });
        models.Tag.belongsToMany(models.Album, { through: 'AlbumTags' });
        models.Tag.belongsToMany(models.Song, { through: 'SongTags' });
    };

    return Tag;
};