Filter by relationship

controllers.application.js

import Ember from 'ember';

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

models.item.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'),
  productType: belongsTo('product-type'),
  productSubtype: belongsTo('product-subtype')
});

models.product-subtype.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'),
  productType: belongsTo('product-type')
});

models.product-type.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'),
  productSubtypes: hasMany('product-subtype')
});

routes.application.js

import Ember from 'ember';

var productTypes = [
  {
    id: 1,
    name: "Medicines",
    productSubtypes: [
    	{
  			id: 1,
    		name: "Prescription Medicines"
  		},
    	{
  			id: 2,
    		name: "Over the Counter"
  		}
    ]
    
  },
  {
  	id: 2,
    name: "Pharmacy Supplies",
    productSubtypes: []
  },
  {
  	id: 3,
    name: "Business Supplies",
    productSubtypes: []
  }
];

var productSubtypes = [
  {
    id: 1,
    name: "Prescription Medicines",
    productType: {
    	id: 1,
      name: "Medicines"
    }
  },
  {
    id: 2,
    name: "Over the Counter",
    productType: {
    	id: 1,
      name: "Medicines"
    }
  }
]

export default Ember.Route.extend({
  model() {
  	return productTypes;
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{#each model as |productType|}}
	<div>{{productType.name}}</div>
{{/each}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}