UsersController.php

<?php

class UsersController extends BaseController {

protected $user;

public function __construct(User $user)
{
    $this->beforeFilter('csrf', array('on' => 'post'));
    $this->user = $user;
}

public function getRegister() 
{
    return View::make('admin.register');
}

public function postRegister()
{
    try 
    {
        $this->user->insertUserIntoDatabase(Input::all());
    } 
    catch (ValidationError $e) 
    {
        return Redirect::to('admin/register')
        ->with('message', 'Something went wrong')
        ->withInput()   
        ->withErrors($e->getErrors());
    }

    return Redirect::to('admin/login')
            ->with('message', 'Thank you for creating a new account');
}

public function getLogin()
{
    return View::make('admin.login');
}

public function postLogin()
{
    if (Auth::attempt(array('email' => Input::get('email'), 'password' => Input::get('password') ))){
        return Redirect::to('admin/dashboard')->with('message', 'Thanks for logging in');
    }

    return Redirect::to('admin/login')->with('message', 'Your email/password combo failed.');
}

public function getLogout()
{
    Auth::logout();
    return Redirect::to('admin/login')->with('message', 'You have been logged out.');
}

public function getDashboard()
{
    return View::make('admin/dashboard');
}   

}

Users.php (Model)

<?php

use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;

class User extends Eloquent implements UserInterface, RemindableInterface {

/**
 * The database table used by the model.
 *
 * @var string
 */
protected $table = 'users';

/**
 * The attributes excluded from the model's JSON form.
 *
 * @var array
 */
protected $hidden = array('password');

protected $fillable = array('firstname', 'lastname', 'email');
/**
 * Get the unique identifier for the user.
 *
 * @return mixed
 */
public function getAuthIdentifier()
{
    return $this->getKey();
}

/**
 * Get the password for the user.
 *
 * @return string
 */
public function getAuthPassword()
{
    return $this->password;
}

/**
 * Get the e-mail address where password reminders are sent.
 *
 * @return string
 */
public function getReminderEmail()
{
    return $this->email;
}

public function insertUserIntoDatabase($input)
{
    $validation = new Services\Validators\Users;

    if ($validation->passes()) {

        $user = new User;
        $user->firstname = Input::get('firstname');
        $user->lastname = Input::get('lastname');
        $user->email = Input::get('email');
        $user->password = Hash::make(Input::get('password'));
        $user->save();
    }

    else {
        $this->errors = $validation->errors;
        throw new ValidationError($validation->errors);
    }
}
}

Thank you for taking time to review my code.

UsersController.php

<?php

    class UsersController extends BaseController {

    protected $user;

    public function __construct(User $user)
    {
        $this->beforeFilter('csrf', array('on' => 'post'));
        $this->user = $user;
    }

    public function getRegister() 
    {
        return View::make('admin.register');
    }

    public function postRegister()
    {
        try 
        {
            $this->user->insertUserIntoDatabase(Input::all());
        } 
        catch (ValidationError $e) 
        {
            return Redirect::to('admin/register')
            ->with('message', 'Something went wrong')
            ->withInput()   
            ->withErrors($e->getErrors());
        }

        return Redirect::to('admin/login')
                ->with('message', 'Thank you for creating a new account');
    }

    public function getLogin()
    {
        return View::make('admin.login');
    }

    public function postLogin()
    {
        if (Auth::attempt(array('email' => Input::get('email'), 'password' => Input::get('password') ))){
            return Redirect::to('admin/dashboard')->with('message', 'Thanks for logging in');
        }

        return Redirect::to('admin/login')->with('message', 'Your email/password combo failed.');
    }
    
    public function getLogout()
    {
        Auth::logout();
        return Redirect::to('admin/login')->with('message', 'You have been logged out.');
    }

    public function getDashboard()
    {
        return View::make('admin/dashboard');
    }   
}

Users.php (Model)

<?php

use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;

class User extends Eloquent implements UserInterface, RemindableInterface {

    /**
    * The database table used by the model.
    *
    * @var string
    */
    protected $table = 'users';

    /**
    * The attributes excluded from the model's JSON form.
    *
    * @var array
    */
    protected $hidden = array('password');

    protected $fillable = array('firstname', 'lastname', 'email');
    /**
    * Get the unique identifier for the user.
    *
    * @return mixed
    */
    public function getAuthIdentifier()
    {
        return $this->getKey();
    }

    /**
    * Get the password for the user.
    *
    * @return string
    */
    public function getAuthPassword()
    {
        return $this->password;
    }

    /**
    * Get the e-mail address where password reminders are sent.
    *
    * @return string
    */
    public function getReminderEmail()
    {
        return $this->email;
    }

    public function insertUserIntoDatabase($input)
    {
        $validation = new Services\Validators\Users;

        if ($validation->passes()) {

            $user = new User;
            $user->firstname = Input::get('firstname');
            $user->lastname = Input::get('lastname');
            $user->email = Input::get('email');
            $user->password = Hash::make(Input::get('password'));
            $user->save();
        }

        else {
            $this->errors = $validation->errors;
            throw new ValidationError($validation->errors);
        }
    }
}