relations

controllers.application.js

import Ember from 'ember';

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

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({
	title: attr('string'),
  user: belongsTo('user')
});

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'),
  posts: hasMany('post')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  beforeModel() {
    this.store.push({
      data:[
        {
          id: 1,
          type: "user",
          attributes: {
            name: "kyle"
          }
        }
      ]
    });
  },
  
  model() {
    return this.store.peekRecord('user', 1);
  },
  
  actions: {
    createProject() {
      const user = this.get('currentModel');
      return this.store.createRecord('post',{
        user: user,
        title: "A New Post"
      });
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{model.name}}'s posts:

<button {{action "createProject"}}>Add Post</button>

<ul>
{{#each model.posts as |post|}}
<li>{{post.title}}</li>
{{else}}
<li>No Posts</li>
{{/each}}
</ul>

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}