bookshelf.js - Updating related models

gistfile1.js

Account.query(function (q) {
	q.where('account.id', '=', 1);
	q.distinct().innerJoin('account_accounts', function () {
		this.on('account.id', '=', 'account_accounts.id');
	});
}).fetch({
	withRelated: ['accounts']
}).then(function (account) {
	return account.related('accounts').query(function (qb) {
		qb.where('account.id', '=', 1006);
	}).fetch();
}).then(function (accounts) {
	return Account.forge({
		id: accounts.at(0).get('id')
	}).save({
		username: 'minhaconta59',
		sha_pass_hash: '123456'
	}, {
		patch: true
	});
}).then(function (account) {
	console.log(account.get('username'));
});