changeset-example

controllers.application.js

import Ember from 'ember';
import lookupValidator from 'ember-changeset-validations';
import Changeset from 'ember-changeset';
import { validatePresence, validateFormat } from 'ember-changeset-validations/validators';

const validations = {
  companyName: [validatePresence(true)],
  email: [validatePresence(true), validateFormat({ type: 'email' })],
};

const model = {
  companyName: null,
  email: null,
};

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  async init() {
    this._super(...arguments);
    this.changeset = new Changeset(model, lookupValidator(validations), validations);
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
  Unrelated field:
  {{input value=changeset.asd}}
<br>
  Required field:
  {{input value=changeset.companyName}}
<br>
<br>
  Changeset valid?: {{changeset.isValid}}
<br>
  Changeset pristine?: {{changeset.isPristine}}
<br>

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-changeset": "2.0.0",
    "ember-changeset-validations": "2.1.0"
  }
}