gistfile1.js

Transactings.findAll({
	where: {
		status: 'PENDING'
	},
	include: [Account]
}).done(function (err, transactings) {
	async.forEach(transactings, function (transacting, callback) {
		sequelize.transaction(function(t) {
			var chainer = new Sequelize.QueryChainer()

			chainer.add(transacting.account.increment('balanace', transacting.amount))
			chainer.add(Transaction.create({amount: transacting.amount}))

			chainer.error(t.rollback)
			chainer.success(t.commit)

			t.done(callback)
		})
	}, function () {
		// Were done
	})
})