Models

The first thing we need to do it build our validation rules. This will then generate a Mixin that you will be able to incorporate into your model or object.

// models/user.js

import Ember from 'ember';
import DS from 'ember-data';
import { validator, buildValidations } from 'ember-cp-validations';

const Validations = buildValidations({
  username: validator('presence', true),
  password: [
    validator('presence', true),
    validator('length', {
      min: 4,
      max: 8
    })
  ],
  email: [
    validator('presence', true),
    validator('format', { type: 'email' })
  ],
  emailConfirmation: [
    validator('presence', true),
    validator('confirmation', {
      on: 'email',
      message: '{description} do not match',
      description: 'Email addresses'
    })
  ]
});

Once our rules are created and our Mixin is generated, all we have to do is add it to our model.

// models/user.js

export default DS.Model.extend(Validations, {
  'username': attr('string'),
  'password': attr('string'),
  'email': attr('string')
});

Objects

You can also use the generated Validations mixin on any Ember.Object or child of Ember.Object, like Ember.Component. For example:

// components/x-foo.js

import Ember from 'ember';
import { validator, buildValidations } from 'ember-cp-validations';

const Validations = buildValidations({
  bar: validator('presence', true)
});

export default Ember.Component.extend(Validations, {
  bar: null
});

To lookup validators, container access is required which can cause an issue with Ember.Object creation if the object is statically imported. The current fix for this is as follows.

// models/user.js

export default Ember.Object.extend(Validations, {
  username: null
});

Ember < 2.3.0-beta.1

// routes/index.js

import User from '../models/user';

export default Ember.Route.extend({
  model() {
    var container = this.get('container');
    return User.create({ username: 'John', container })
  }
});

Ember >= 2.3.0-beta.2

// routes/index.js

import User from '../models/user';

export default Ember.Route.extend({
  model() {
    return User.create(
     Ember.getOwner(this).ownerInjection(),
     { username: 'John' }
    );
  }
});