javascript - Updating already existing event with relationship when a booking is saved in Ember -

i have 2 models:

event.js:

export default model.extend({   checked       : attr({ defaultvalue: false }),   isactive      : attr(),   createdat     : attr(),   updatedat     : attr(),   start         : attr(),   end           : attr(),   menprice      : attr(),   womenprice    : attr(),   information   : attr(),   meetingpoint  : attr(),   title         : attr(),   hiw           : attr(),   tip           : attr(),   bookings      : hasmany('booking', { async: true}) }); 

and booking.js:

export default model.extend({   checked       : attr({ defaultvalue: false }),   isactive      : attr(),   createdat     : attr(),   updatedat     : attr(),   participants  : attr(),   email         : attr(),   locale        : attr(),   name          : attr(),   observation   : attr(),   phonenumber   : attr(),   event         : belongsto('event') }); 

and create relationship referring bookings in events, can't figure out how!

how works: when create event in admin dashboard, there isn't bookings refer, happens in site, when user makes reservation.

i using code save booking (reservation) , refer owner event:

let booking =  this.get('store').createrecord('booking', {     event: this.get('event') });  booking.save(); 

and it's working. that's how booking looks like:

this booking json:

{     "_id": {         "$oid": "56beb58da080cf2c2d46065b"     },     "relationships": {         "event": {             "data": {                 "id": "56baa0cdd79cd63c7a0f0065",                 "type": "events"             }         }     },     "type": "bookings",     "attributes": {         "created-at": {             "$date": "2016-02-13t04:48:13.489z"         },         "gender": "null",         "hostel": "null",         "phone-number": "918918918118",         "observation": "obs",         "name": "marcelo",         "locale": "es",         "email": "marcelo@pubcrawlsp.com",         "participants": 10,         "value": 0,         "is-active": false,         "vip": []     },     "__v": 0 } 

as can see, relationship working booking.

now need opposite, mean.. update event booking inside .. can't, can't figure out how! i'm stuck on @ least 3 weeks.

i tried several things, including using embedded option, updating manually, nothing works.

i appreciate help!

maybe understand question wrongly there point in saving event bookings ?

i mean 1 many relationship one, bookings have eventid pointing event related event doesn't hold reference bookings. saving changes on event should automatically reflected on bookings referencing it.