this is mine:

try

{

		$username = Input::get('username');
		$password = Input::get('password');

		if(str_contains($username, '@'))
		{
			Config::set('cartalyst/sentry::users.login_attribute', 'email');

			$credentials = array(
				'email'    => $username,
				'password' => $password,
			);
		}
		else
		{
			Config::set('cartalyst/sentry::users.login_attribute', 'username');

			$credentials = array(
				'username' => $username,
				'password' => $password,
			);
		}
		
		// Try to authenticate the user
		$user = Sentry::authenticate($credentials, false);

		return Redirect::intended('app/dashboard');
	}
	catch (Cartalyst\Sentry\Users\LoginRequiredException $e)
	{
		echo 'Login field is required.';
	}
	catch (Cartalyst\Sentry\Users\PasswordRequiredException $e)
	{
		echo 'Password field is required.';
	}
	catch (Cartalyst\Sentry\Users\WrongPasswordException $e)
	{
		echo 'Wrong password, try again.';
	}
	catch (Cartalyst\Sentry\Users\UserNotFoundException $e)
	{
		echo 'User was not found.';
	}
	catch (Cartalyst\Sentry\Users\UserNotActivatedException $e)
	{
		echo 'User is not activated.';
		return Redirect::back()->with('failed', 'Gagal untuk log masuk');
	}

it's simplest way

http://stackoverflow.com/questions/20225054/laravel-the-login-attribute-is-required-sentry2-auth

Actually, @prgmsaha, that does not address the problem here.

@dontspamagain that is brilliant!

$u = new \User();
$u->setLoginAttributeName('email');

This works perfectly.

I'm transitioning users from usernames to email addresses, so I want to check both. This is working great.

    try
    {
        // First try username. (Default login attribute.)
        $user = Sentry::authenticate(Input::only('username', 'password'), Input::has('remember'));
    }
    catch (Exception $e)
    {
        try
        {
            // Next try email address. Brilliant!
            $u = new \User();
            $u->setLoginAttributeName('email');
            
            // Try again with email address.
            $credentials = Input::only('username', 'password');
            $credentials['email'] = $credentials['username'];
            unset($credentials['username']);
            
            $user = Sentry::authenticate($credentials, Input::has('remember'));
        }
        catch (Exception $e)
        {
            // ... let the user know they were unsuccessful
        }
    }

Thanks so much. This is such a simple answer. I was digging around in the sentry code for an hour trying to decide how to solve this problem. Dreading the possible need to extend the class.

dontspamagain said:

I come here because I forgot to give the solution if someone else falls on the same worries.

use Cartalyst\Sentry\Users\Eloquent\User;

...

$u = new User(); $u->setLoginAttributeName('first_name');