How to save a object with hasMany/hasOne relations ?

[cedmallet]

I'm looking for the nicest/recommanded way to save an object and its relations at the same time, and within a transaction.

Let's say I have Flight Model having 0..N relations Instructions.

Flight = bookshelf.model('Flight', {
	tableName: 'flight',
	idAttribute: 'flightId',

	instructions() {
		return this.hasMany(Instruction, 'flightId', 'flightId');
	}
 }

Now i'm building a Model with all fields :

let flight = new Flight({... });
let instruction = new Instruction({...});

and I just want to save them all together.

Do I have to do it all manually, ie :

• save the Flight
• set the flightId in the instruction
• save the instruction
  all of it with a transaction being cast from call to call ?

or can I just set the value of the relation with
flight.set('instructions', [instruction]) ?
flight.instructions().attach(instruction) ?
and save it all ?

It seems quite confusing that basic relationship handling doesn't seem to be covered, is that's the case.

Any hint highly appreciated,
many thanks