model-fragments-array-testing

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  init() {
    this._super(...arguments);
    let grandparent = this.get('store').createRecord('grandparent', {
      child: {
        frags: [
          {myArray:[]},
          {myArray:[]}
        ]
      }
    });
    let parent = grandparent.get('child');
    let frags = parent.get('frags');
    console.log(parent.changedAttributes());
    frags.forEach(function(frag) {
	    console.log(frag, frag.get('currentState.isDirty'));
      frag.get('myArray').pushObject('foo');
	    console.log(frag, frag.get('currentState.isDirty'));
    });
  }
});

models.fragment.js

import MF from 'ember-data-model-fragments';
import { array } from 'ember-data-model-fragments/attributes';

export default MF.Fragment.extend({
  myArray: array()
});

models.grandparent.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import MF from 'ember-data-model-fragments';
import { fragment } from 'ember-data-model-fragments/attributes';

export default Model.extend({
  child: fragment('parent')
});

models.parent.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import MF from 'ember-data-model-fragments';
import { fragmentArray } from 'ember-data-model-fragments/attributes';

export default MF.Fragment.extend({
  frags: fragmentArray('fragment')
});

templates.application.hbs

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

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": "release",
    "ember-data-model-fragments": "2.14.0"
  }
}