Sequelize add or remove enum values

alter-enum.js

module.exports = {
  up: (queryInterface, DataTypes) => {
    return queryInterface.sequelize.query("ALTER TYPE enum_students_id_card_type ADD VALUE 'driving_license';");
  },
  down: (queryInterface, DataTypes) => {
    // FIXME: Removing enum value is not supported by PostgreSQL,
    // but there is any tricky way to do this.
    // ref: https://stackoverflow.com/a/46244969, https://stackoverflow.com/a/25812436
    return queryInterface.sequelize.query("UPDATE students SET id_card_type = 'ktp' WHERE id_card_type = 'driving_license';")
      .then(() => {
        const query = `DELETE FROM pg_enum
                        WHERE enumlabel = 'driving_license'
                        AND enumtypid = (SELECT oid FROM pg_type WHERE typname = 'enum_students_id_card_type');`;
        return queryInterface.sequelize.query(query);
      });
  }
};