unload-relationships

adapters.application.js

import Adapter from "ember-data/adapters/rest";

export default Adapter.extend();

initializers.pretender.js

export function returnJSON(status, body) {
  return json(...arguments);
};

export function json(status, body) {
  if (arguments.length === 1) {
    body = status;
    status = 200;
  }
  
  return [
    status,
    { "Content-Type": "application/json" },
    JSON.stringify(body)
  ];
};

export const server = new Pretender();

export function initialize() {
  server.handledRequest = function(verb, path, request) {
    console.log(`handled request to ${verb} ${path}`);
  }

  server.unhandledRequest = function(verb, path, request) {
    console.log(`undhandled request ${verb} ${path}`);
  }
};

export default {
  name: 'pretender',
  initialize
};

models.car.js

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

export default Model.extend({
  parts: hasMany('part', { async:true }),
  type: attr('string')
});

models.part.js

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

export default Model.extend({
  cars: hasMany('car', { async:true }),
  type: attr('string')
});

routes.application.js

import Ember from 'ember';
import { server, json } from '../initializers/pretender';

server.map(function() {
  this.get('/cars', function() {
    return json({
      cars: [{
        id: 1,
        type: 'FastCar',
        parts: [1, 2, 3]
      }]
    });
  });
});

var parts = {
  parts:[{
    id: 1,
    type: 'Big engine'
  },{
    id: 2,
    type: 'Tires'
  },{
    id: 3,
    type: 'Hidden weapon'
  }]
};

export default Ember.Route.extend({
  actions: {
    loadParts: function () {
      this.store.pushPayload(parts);
    },
    unloadParts: function () {
      this.store.unloadAll('part');
    }
  },
  model: function() {
    return { 
      cars: this.store.findAll('car'),
      parts: this.store.findAll('part')
    };
  }
});

serializers.application.js

import Serializer from "ember-data/serializers/rest";

export default Serializer.extend();

templates.application.hbs

    <p>Cars and their parts:</p>
    <ul>
    {{#each model.cars as |car|}}
      <li>{{car.type}}</li>
        <ul>
        {{#each car.parts as |part|}}
          <li>{{part.type}}</li>
        {{/each}}
        </ul>
    {{/each}}
    </ul>

    <button {{action 'loadParts'}}>Load parts</button>
    <button {{action 'unloadParts'}}>Unload parts</button>
    

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": "release",
    "ember-data": "canary",
    "ember-template-compiler": "release",
    "route-recognizer": "https://rawgit.com/tildeio/route-recognizer/56f5fcec6ae58d8e86b5dc77609809fb91198142/dist/route-recognizer.js",
    "FakeXMLHttpRequest": "https://rawgit.com/pretenderjs/FakeXMLHttpRequest/23c3a96b5b24f1bfe595867437e4f128a29c2840/fake_xml_http_request.js",
    "pretender": "https://rawgit.com/pretenderjs/pretender/c6de9afe18b1472aded2592f5a80ad9a26a0e262/pretender.js"
  },
  "addons": {
  }
}