Ember Validations: Controller/Component

gistfile1.js

import Ember from 'ember';
import EmberValidations from 'ember-validations';

const { Controller, computed } = Ember;
const { alias } = computed;

export default Controller.extend(EmberValidations, {
 contact: alias('model'),
 validations: {
  'contact.email': {
   presence: true
  },
  'contact.name': {
   presence: true
  },
  'contact.reason': {
   presence: true
  }
 }
});