SO example

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
});

models.storehouse.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  transferOrigins:hasMany('transfer', { inverse: 'storeOrigin' }),
  transferDestinations:hasMany('transfer', { inverse: 'storeDestination' }),
  storeNo:attr('string'),
  storeState:attr('string'),
  storeCity:attr('string')
});

models.transfer.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  storeOrigin:belongsTo('storehouse'),
  storeDestination:belongsTo('storehouse'),
  fromStoreId:attr('string'),
  toStoreId:attr('string'),
  transferNotes:attr('string')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  beforeModel(){
  	let store1 = this.store.createRecord('storehouse',{
    	id:'1',
      storeNo:'me1',
      storeState: 'me',
      storeCity: 'Bangor'
    });
    let store2 = this.store.createRecord('storehouse',{
    	id:'2',
      storeNo:'tx1',
      storeState: 'tx',
      storeCity: 'Dallas'
    });
    let transfer1 = this.store.createRecord('transfer',{
    	id:'1'
    });
    
    transfer1.set('storeOrigin',store1);
    transfer1.set('fromStoreId',store1.id);
    transfer1.set('storeDestination',store2);
    transfer1.set('toStoreId',store2.id);
    transfer1.set('transferNotes','transfer to 2');
    
  },
  model(){
  	return this.store.peekRecord('transfer','1');
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
transfer id: {{model.id}}<br>
store Origin > storeNo: {{model.storeOrigin.storeNo}} <br>
store Destination > storeNo: {{model.storeDestination.storeNo}} <br>
<br>
<br>

twiddle.json

{
  "version": "0.8.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}