rich vs. anemic domain modeling

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
	
  store: Ember.inject.service(),
  
  post: null,

  init() {
		let post = this.get('store').createRecord('post');
    this.set('post', post);
  },
  
  actions: {
    
    addComment() {
      let post = this.get('post');
      let comment = this.get('store').createRecord('comment', { content: 'hiya!' });
      post.add(comment);
		},
    
    addCommentAnemically() {
      let post = this.get('post');
      let comment = this.get('store').createRecord('comment', { content: 'hello!' });
      post.get('comments').pushObject(comment);
    }
    
  }
  
});

models.comment.js

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

export default Model.extend({
  content: attr('string')
});

models.post.js

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

export default Model.extend({
  
  author: attr('string'),
	description: attr('string'),

  comments: hasMany(),
  
  add(comment) {
    this.get('comments').pushObject(comment);
  }
  
});

templates.application.hbs

<button {{action 'addComment'}}>Add comment</button>
<button {{action 'addCommentAnemically'}}>Add comment anemically</button>

<ul>
{{#each post.comments as |comment|}}
	<li>{{comment.content}}</li>
{{/each}}
</ul>

twiddle.json

{
  "version": "0.13.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}