New Twiddle

controllers.application.js

import Ember from 'ember';

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

models.payment-method-credit-card.js

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

import PaymentMethod from "models/payment-method";

export default PaymentMethod.extend({
  ccNumber: attr('number'),
});

models.payment-method-paypal.js

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


import PaymentMethod from "./payment-method";

export default PaymentMethod.extend({
  email: attr('string'),
  capsEmail: Ember.computed('email', function () { return this.get('email').toUpperCase(); }),
});

models.payment-method.js

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

export default Model.extend({
  user: belongsTo('user'),
  foo: attr('string'),
});

models.user.js

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

export default Model.extend({
  name: attr('string'),
  paymentMethod: hasMany('payment-method', { polymorphic: true }),
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(params, transition) {
    const store = this.get('store');
    const paymentMethod = store.createRecord('payment-method', { 
      payment_method_type: 'payment-method-paypal', 
      email: 'foo@bar.com' 
    });
  	const user = store.createRecord('user', {
    	name: 'Jacob',
      paymentMethod: [ paymentMethod ],
    });
    console.log(user.get('paymentMethod.firstObject.capsEmail')); // Expected: "FOO@BAR.COM"
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}