attempt at Twitter login using OneAuth laravel bundle

users.php

<?php

class Users_Controller extends Base_Controller {

  public $restful = true;    

	public function get_index($id = NULL)
    {
        $user = User::find($id);

        return View::make('user.index')
            ->with('title','Users')
            ->with('user', $user);
    }    

    public function post_index()
    {

        User::create(array(

            'username' => Input::get('username'),
            'email' => Input::get('email'),
        ));

        $users = User::all();


        return View::make('user.new')
            ->with('users', $users)
            ->with('title','New User');
    }    


    // 
    // below is what I'm interested in.. copied from:
    // http://youtu.be/xlUFiZhwFiE
    // 

    public function get_social_login()
    {
        $user_data = Session::get( 'oneauth' );

        $user = User::where_social_provider( $user_data['provider'])
            ->where_social_uid( $user_data['info']['uid'] )
            ->first();

            Session::forget( 'user_data ');

            if( !is_null( $user ) )
            {
                Auth::login( $user->id, true );
                return Redirect::to( 'dashboard' );
            }
            else
            {
                return Redirect::to( 'user/login' )->with( 'error', "Sorry, Couldn't log you in." );
            }


    }

    public function get_social_register()
    {
        $user_data = Session::get( 'oneauth' );

        $user = new User;

        // Used for logging in user
        $user->social_uid = $user_data['info']['uid'];
        $user->social_provider = $user_data['provider'];

        // General Info
        $user->username -> $user_data['info']['name'];

        // Proider specific info
        switch( $user_data['provider'] )
        {
            case 'twitter' :

                // Double check that the email exists
                $email_check = User::where_email( $user_data['info']['email'] )
                    ->count();
                if( $email_check == 0 ) 
                    $user->email = $user_data['info']['email'];

            break;
        }

        $user->save();
        Auth::login( $user->id, true );

        Session::forget( 'user_data' );

        // Redirect to last viewed page
        return Redirect::to( 'user/terms' )->with( 'success', 'Welcome to the Invest in this Site community!' );

    }
}