<?php
class UsersController extends AppController {

    var $name = 'Users';
    var $components = array('Auth', 'Acl');


    function beforeFilter(){
        //parent::beforeFilter();
        $this->Auth->loginError = "asdad!";
        $this->Auth->authError = "sdsd !.";
        App::uses('CakeEmail', 'Network/Email');
        $this->Auth->userModel = 'User';
        $this->Auth->allow('login','register','login','step2','TakeId','kontakt');
    }
    function login(){
        if(!empty($this->data)){
            $this->request->data['User']['password'] = AuthComponent::password($this->request->data['User']['password']);
            $sprawdz = $this->User->find('first',array('conditions'=>array('User.username'=>$this->request->data['User']['username'],'User.password'=>$this->request->data['User']['password'])));
            echo debug($sprawdz);
            if(!empty($sprawdz)){
                if($this->Auth->login($this->request->data)){
                    $this->redirect('/');
                    echo debug('you are log in!') ;
                    }
            }
            else {
                $this->User->invalidate('username', 'mistake!');
            }
        }
    }

    function logout(){
        $this->Auth->logout();
        $this->redirect('/');
    }
}

<?php echo $this->Session->flash('auth'); ?>
<?php echo $this->Form->create('User'); ?>
    <fieldset>
        <?php echo $this->Form->input('username');
              echo $this->Form->input('password'); ?>
    </fieldset>
<?php echo $this->Form->end(__('Log in')); ?>

function login(){
     if ($this->request->is('post')) {
            if ($this->Auth->login()) {
               $this->Session->setFlash('You have successfully logged in the system');
               return $this->redirect('/');
            }
            $this->Session->setFlash(__('Invalid username or password, try again [warning]'));
        }
}

function login(){
    if(!empty($this->request->data)){
        $this->request->data['User']['password'] = AuthComponent::password($this->request->data['User']['password']);
        $sprawdz = $this->User->find('first',array('conditions'=>array('User.username'=>$this->request->data['User']['username'],'User.password'=>$this->request->data['User']['password'])));
        echo debug($sprawdz);
        if(!empty($sprawdz)){
            if($this->Auth->login()){
                $this->redirect('/');
                echo debug('you are log in!') ;
                }
        }
        else {
           $this->Session->setFlash('Invalid username or password');
        }
    }
}