Storefront has many ref

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
  books: Ember.computed(function() {
    //debugger;
    return this.get('model').hasMany('books').value();
  }),
  
  
  
});

mirage.config.js

export default function() {
  //window.server = this;
  this.get('authors/:id');
};

mirage.models.author.js

import { Model, hasMany } from 'ember-cli-mirage';

export default Model.extend({
  
  books: hasMany({ async: false })
  
});

mirage.models.book.js

import { Model, hasMany } from 'ember-cli-mirage';

export default Model.extend({
  
  tags: hasMany()
  
});

mirage.models.tag.js

import { Model, hasMany } from 'ember-cli-mirage';

export default Model.extend({
});

mirage.scenarios.default.js

export default function(server) {
  // added this line because global wasn't created otherwise.
  
  let nonfiction = server.create('tag', { name: 'Nonfiction' });
  let fiction = server.create('tag', { name: 'Fiction' });
  let travel = server.create('tag', { name: 'Travel' });
  let paperback = server.create('tag', { name: 'paperback' });
  let hardcover = server.create('tag', { name: 'hardcover' });
  
  let author = server.create('author', {
    name: 'John Steinbeck'
  });
  
  let book = author.createBook({
    title: 'Of Mice and Men',
    tags: [ fiction, paperback ]
  });
  
  author.createBook({
    title: 'The Grapes of Wrath',
    tags: [ fiction, hardcover ]
  });
  author.createBook({
    title: 'Travels with Charley',
    tags: [ nonfiction, paperback, travel ]
  });
  
  setTimeout(() => {
    author.createBook();
  }, 500);
  setTimeout(() => {
    author.createBook();
  }, 1000);
   setTimeout(() => {
    author.createBook();
  }, 1500);
  
}

mirage.serializers.application.js

import { JSONAPISerializer } from 'ember-cli-mirage';

export default JSONAPISerializer.extend({
});

models.author.js

import DS from 'ember-data';

export default DS.Model.extend({
  name: DS.attr(),

  books: DS.hasMany()
});

models.book.js

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

export default Model.extend({
  title: attr(),

  tags: hasMany()

});

models.tag.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()
  
});

routes.application.js

import Ember from 'ember';
import { later } from '@ember/runloop';

export default Ember.Route.extend({
  
  model() {
    return this.store.findRecord('author', 1, {
      include: 'books.tags'
    });
  },
  
  setupController(controller, model) {
    this._super(...arguments);
    
    controller.set('message', 'Delaying...');
    
		later(() => {
      controller.set('message', 'Done!');
      
      this.store.findRecord('author', 1, {
      	include: 'books.tags'
	    });
    }, 600);
    
    later(() => {
      controller.set('message', 'Done!');
      
      this.store.findRecord('author', 1, {
      	include: 'books.tags'
	    });
    }, 2000);
  }
  
  
});

styles.app.css

body {
  margin: 0;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

h1 {
  font-size: 12px;
  font-weight: bold;
  text-align: center;
  text-shadow: none;
  background: #2e4068;
  color: white;
  padding: 20px;
  margin: 0;
  text-transform: uppercase;
}

p {
  font-weight: normal;
}

.pa4 {
  padding: 20px;
}
hr {
  border-top: none;
  border-bottom: 1px solid #ddd;
}

templates.application.hbs

<h1>Mirage boilerplate</h1>

<div class='pa4'>

  <p>{{model.name}} has <strong>{{books.length}}</strong> Books</p>
  <p>{{message}}</p>
  
</div>

tests.acceptance.my-acceptance-test.js

import { test } from 'qunit';
import moduleForAcceptance from '../../tests/helpers/module-for-acceptance';

moduleForAcceptance('Acceptance | Users');

test('I can see the users', function(assert) {
  server.create('user', { name: 'Link' });
  
  //visit('/');

  andThen(function() {
    assert.ok(true);
    //assert.ok(find(':contains(Welcome Link!)').length);
  });
});

tests.helpers.destroy-app.js

import Ember from 'ember';

export default function destroyApp(application) {
  Ember.run(application, 'destroy');
}

tests.helpers.module-for-acceptance.js

import { module } from 'qunit';
import startApp from '../helpers/start-app';
import destroyApp from '../helpers/destroy-app';

export default function(name, options = {}) {
  module(name, {
    beforeEach() {
      this.application = startApp();

      if (options.beforeEach) {
        options.beforeEach.apply(this, arguments);
      }
    },

    afterEach() {
      if (options.afterEach) {
        options.afterEach.apply(this, arguments);
      }

      destroyApp(this.application);
    }
  });
}

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.helpers.start-app.js

import Ember from 'ember';
import Application from '../../app';
import config from '../../config/environment';

export default function startApp(attrs) {
  let application;

  let attributes = Ember.merge({rootElement: "#test-root"}, config.APP);
  attributes = Ember.merge(attributes, attrs); // use defaults, but you can override;

  Ember.run(() => {
    application = Application.create(attributes);
    application.setupForTesting();
    application.injectTestHelpers();
  });

  return application;
}

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

twiddle.json

{
  "version": "0.15.0",
  "ENV": {
    "ember-cli-mirage": {
      "enabled": true
    }
  },
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
    "ember-data": "2.16.3",
    "ember-cli-mirage": "0.4.9"
  }
}