undo redo

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  store: Ember.inject.service(),

  init: function() {
		var folder = this.get('store').find('folder', 1);
		var item = this.get('store').find('item', 1);
    
    this.set('folder', folder);
    this.set('item', item);

    this._super.apply(this, arguments);
  },
  
  actions: {
  	deleteItem: function() {
    	this.get('store').peekRecord('item', 1).destroyRecord();
    },
    
    undoDeleteItem: function() {
    	this.get('store').peekRecord('item', 1).destroyRecord();
    }
  }
});

mirage.config.js

export default function() {
  this.namespace = '';

  this.get('/folders/1', () => {
    return {
      folders: [
        {id: 1, name: 'My folder'}
      ]
    };
  });

  this.get('/items/1', () => {
    return {
      items: [
        {id: 1, name: 'My item', parentFolder: 1}
      ]
    };
  });

  this.delete('/items/1', () => {
    return {
    };
  });

}

models.folder.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'),
  items: hasMany('items', { inverse: 'parentFolder'})
});

models.item.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'),
  parentFolder: belongsTo('folder', { inverse: 'items' })
});

serializers.application.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend({
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{folder.name}} has {{folder.items.length}} items.
<br>
<br>
<button onclick={{action 'deleteItem'}}>Delete item</button>
<br>
<button onclick={{action 'undoDeleteItem'}}>Undo delete item</button>

twiddle.json

{
  "version": "0.13.0",
  "ENV": {
    "ember-cli-mirage": {
    	"enabled": true
		}
	},
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.18.2",
    "ember-template-compiler": "2.18.2",
    "ember-testing": "2.18.2"
  },
  "addons": {
    "ember-data": "2.18.2",
    "ember-cli-mirage": "0.4.7"
  }
}