public function indexAction()
 {
     $request = $this->getRequest();
     $view = new ViewModel();
     $loginForm = new LoginForm('loginForm');
     $loginForm->setInputFilter(new LoginFilter());
     if ($request->isPost()) {
         $data = $request->getPost();
         $loginForm->setData($data);
         if ($loginForm->isValid()) {
             $data = $loginForm->getData();
             $userPassword = new UserPassword();
             $encyptPass = $userPassword->create($data['password']);
             $this->getAuthService()->getAdapter()->setIdentity($data['email'])->setCredential($encyptPass);
             $result = $this->getAuthService()->authenticate();
             if ($result->isValid()) {
                 $session = new Container('User');
                 $session->offsetSet('email', $data['email']);
                 $this->flashMessenger()->addMessage(array('success' => 'Login Success.'));
                 // Redirect to page after successful login
             } else {
                 $this->flashMessenger()->addMessage(array('error' => 'invalid credentials.'));
                 // Redirect to page after login failure
             }
             return $this->redirect()->tourl('/application/login');
             // Logic for login authentication
         } else {
             $errors = $loginForm->getMessages();
             //prx($errors);
         }
     }
     $view->setVariable('loginForm', $loginForm);
     return $view;
 }