buffer

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({

});

controllers.application.js

import Ember from 'ember';
import BufferedProxy from 'ember-buffered-proxy/proxy';

export default Ember.Controller.extend({
  person: {
    name: 'quincy'
  },
  
  init () {
    this._super(...arguments)

    const buffer = BufferedProxy.create({
      content: this.person
    })

    this.set('personBuffer', buffer)
  },
  
  actions: {
    flushBuffer(buffer) {
    	buffer.applyBufferedChanges()
    }
  }
});

templates.application.hbs

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

<div>Source object value: {{person.name}}</div>
<br>

{{my-component
  personBuffer=personBuffer
  onFlushBuffer=(action 'flushBuffer')
}}

templates.components.my-component.hbs

Start of my component

<div>
buffer internal value: {{personBuffer.name}}
</div>

<div>
buffer source value: {{personBuffer.content.name}}
</div>


<button {{action (action (mut personBuffer.name) (concat personBuffer.name '+'))}}>Mutate buffer</button>

<button {{action @onFlushBuffer personBuffer}}>Flush buffer</button>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2",
    "ember-buffered-proxy": "1.0.0"
  }
}