Zend FR

// html...
<?php echo $this->action( 'login', 'login' ) ?>

    public function loginAction(){

        if( $this->_auth->hasIdentity() ){
          $this->render('welcome');
          return true;
        }
   
        $form = new Xender_Form_Login();
        $form->setAction( 'login/login' )
             ->setMethod( 'post' )
             ->setAttrib( 'class', 'uniForm' );
         
                 
        if ( $this->getRequest()->isPost() ){
              $formData = $this->_request->getPost();

            if ( $form->isValid( $formData ) ){
    
                    // --- creation de l'authentificateur
              $db        = Zend_Db_Table_Abstract::getDefaultAdapter();
              $dbAdapter = new Zend_Auth_Adapter_DbTable( $db, 'account', 'acc_email', 'acc_password', 'MD5(?)' );        
        
              // --- passage des parametres à l'authentificateur
              $dbAdapter->setCredential( $this->_request->getPost( 'password' ) )
                        ->setIdentity( $this->_request->getPost( 'email' ) );
                    
                    // --- authentification          
              $result = $this->_auth->authenticate( $dbAdapter );
              
              // --- ecriture de l'objet complet en session, sauf le champ password, si l'identification est OK
              if ( $result->isValid() ) {
                $this->_auth->getStorage()->write( $res = $dbAdapter->getResultRowObject( null, 'acc_password' ) );
        
                // regeneration de l'id de session (evite les fixations de session)
                Zend_Session::regenerateId();
        
                $this->_redirect('/member/');
              }
                    else{
                        // attribution du namespace dans le flashmessenger pour le message d'erreur éventuel
                $this->_helper->redirectorToOrigin->setFlashMessengerNamespace('loginForm'); 
    
                  $this->_helper->redirectorToOrigin('Email ou password incorrect');
              }      
    
            }
            else{
                  $form->populate( $formData );
            }

        }
        
        $this->view->form = $form;
        $this->render( 'loginform' );
        
    }