It is not authing right after registiration with laravel Auth class - php

Question

Everything is ok unless authing in this code. That returns "false". This is my first try with this class I'm already beginner for laravel. I don't know that is really basic problem but I can not see the problem, that's why I ask this.
public function signupDone(){
$rules = array(
'username' => 'required|unique:users|min:5', // Minumum 5 Characters and Unique
'password' => 'required|min:8', // Password must be 8 characters, at least
'password2' => 'same:password', // Password2 must be same of password
'email' => 'required|email|unique:users' // Email must be an e-mail adress unique
);
$validation_result = Validator::make(Input::all(), $rules);
if($validation_result->fails()){
return Redirect::to('signup')->withErrors($validation_result);
}
$user = new Users;
$user->username = Input::get('username');
$user->password = Hash::make(Input::get('password'));
$user->email = Input::get('email');
if($user->save()){
if(Auth::attempt(array("username"=>$user->username, "password"=>Input::get('password')))){
return Redirect::to('/');
}
else{
return "false";
}
}
Thanks.
EDIT:
/config/auth.php
<?php
return array(
'driver' => 'eloquent',
'model' => 'Users',
'table' => 'users',
'reminder' => array(
'email' => 'emails.auth.reminder',
'table' => 'password_reminders',
'expire' => 60,
),
);
And users table:
Users Model:
<?php
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
class Users extends Eloquent implements UserInterface, RemindableInterface {
use UserTrait, RemindableTrait;
/**
* 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', 'remember_token');
}

Answer 1

As #user3158900 noticed correctly, your password column needs to be 60 characters long, otherwise the hash will be truncated become useless.
Still there's no need to use Auth::attempt if you know the users credentials are valid (because he just created his account).
In such cases you can just use Auth::login
if($user->save()){
Auth::login($user);
return Redirect::to('/');
}
There's no need to check if the login worked because:
You are not validating credentials
If anything drastically goes wrong an exception will be thrown
If the user for some reason doesn't get logged in without error there's still your auth filter that will redirect to a login form (I suppose)

Answer 2

Yes I have to change the password field to 60 varchar. But I've just noticed that, Auth::attempt returns false if username and password ok.
if (Auth::attempt(array('email' => $email, 'password' => $password)))
{
return Redirect::intended('dashboard');
}