Login page with form Ionic2

login.ts

import {Page} from 'ionic-angular';
import {FormBuilder, Validators, ControlGroup} from 'angular2/common';
import {ValidationService} from "./validation.service";
import {ControlMessages} from "./control-messages.component";

@Page({
  templateUrl: 'build/pages/login/login.html',
  directives: [ControlMessages]
})
export class LoginPage {
  loginForm: ControlGroup;

  constructor (form: FormBuilder) {
    this.loginForm = form.group({
      email: ["", Validators.compose([Validators.required, ValidationService.emailValidator])],
      password: ["", Validators.required]
    });
  }
}