/**
 * Login user with facebook
 *
 * @return void
 */

public function loginWithFacebook() {

    // get data from input
    $code = Input::get( 'code' );

    // get fb service
    $fb = OAuth::consumer( 'Facebook' );

    // check if code is valid

    // if code is provided get user data and sign in
    if ( !empty( $code ) ) {

        // This was a callback request from facebook, get the token
        $token = $fb->requestAccessToken( $code );

        // Send a request with it
        $result = json_decode($fb->request( '/me?fields=id,name,first_name,last_name,email,photos' ), true);

        $message = 'Your unique facebook user id is: ' . $result['id'] . ' and your name is ' . $result['name'];
        echo $message. "<br/>";

        //Var_dump
        //display whole array(). 

 echo('http://graph.facebook.com/'.$result['id'].'/picture?type=large<br>');

         dd($result); 

try{
                $user = Sentry::findUserByLogin($result['email']);

                Sentry::login($user, false);

                return Redirect::to('contractors/dashboard');
            }
            catch (Cartalyst\Sentry\Users\UsersNotFoundException $e)
            {
                $user = Sentry::register(array(
                            'activated' => 1,
                            'email' => $result['email'],
                            'first_name' => $result['first_name'],
                            'last_name' => $result['last_name'],
                    ));
                $group = Sentry::findGroupByName($data['contractor']);
                $user->addGroup($usergroup);

                Sentry::login($user, false);

                return Redirect::to('contractors/dashboard');
            } 

 
    }
    // if not ask for permission first
    else {
        // get fb authorization
        $url = $fb->getAuthorizationUri();

        // return to facebook login url
         return Redirect::to( (string)$url );
    }

}

$result = json_decode($fb->request( '/me?fields=id,name,email' ), true);