Changeset Example

controllers.application.js

import Ember from 'ember';
import Changeset from 'ember-changeset';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  init() {
    this._super(...arguments);
    this.model = new Ember.Object({ inputValue: 'Hello, World!' });
    this.changeset = new Changeset(this.model, this.validate);
  },
  
  validate({ newValue }) {
  	return newValue.length > 0 && newValue.length <= 140;
  },
  
  actions: {
    makeChanges() {
      this.changeset.execute();
    }
  }
});

templates.application.hbs

<h1>Changeset</h1>

<input value={{changeset.inputValue}} oninput={{action (mut changeset.inputValue) value="target.value"}}>

<br><br><br>

<p>Changeset Valid: {{changeset.isValid}}</p>
<p>Model Value: {{model.inputValue}}</p>

<button onclick={{action "makeChanges"}}>Save Changes</button>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-cp-validations": "3.3.2",
    "ember-changeset": "1.3.0"
  }
}