Tip & Tricks

Here table used is merchantmaster, model name is Merchantmaster , controller name is Merchantmasters.

In Model add

   function validateLogin($data)
    {
      //$uname = $this -> query("select username, password from merchantmasters where username = '$u';");
       //print_r($uname);
        $user = $this->find(array('username' => $data['username'], 'password' => $data['password']), array('id', 'username'));
        //print_r($user);
        if(empty($user) == false)
            return $user['Merchantmaster'];
        return false;
    }

In controller add

function beforeFilter() {
        parent::beforeFilter();
       $this->__validateLoginStatus();
 }
   
    function login()
    {
        if(empty($this->data) == false)
        {
            if(($user = $this->Merchantmaster->validateLogin($this->data['Merchantmaster'])) == true)
            {
                $this->Session->write('merchantmaster', $user);
                $this->Session->setFlash('You\'ve successfully logged in.');
                $this->redirect('index');
                exit();
            }
            else
            {
                $this->Session->setFlash('Sorry, the information you\'ve entered is incorrect.');
                $this->redirect('login');
                exit();
            }
        }
    }
   
    function logout()
    {
        $this->Session->destroy('merchantmaster');
        $this->Session->setFlash('You\'ve successfully logged out.');
        $this->redirect('login');
    }


  
    function __validateLoginStatus()
  {
        if($this->action != 'login' && $this->action != 'logout')
        {
            if($this->Session->check('merchantmaster') == false)
            {
                $this->redirect(array('action' =>'login'));
                $this->Session->setFlash('The URL you\'ve followed requires you login.');
            }
        }
    }

In view add

<div class="row">
            <div class="span12">
                <?php
                  echo $this->Layout->sessionFlash();
                ?>
            </div>
        </div>
        <?php
    echo $form->create('Merchantmaster', array('action' => 'login'));
    echo $form->input('username');
   echo $form->input('password');
   echo $form->end('Login');
  
?>