public function indexAction()
 {
     Zend_Loader::loadClass('Zend_Auth');
     $authClass = Zend_Auth::getInstance();
     if ($authClass->hasIdentity()) {
         $auth = $authClass->getStorage()->read();
         $id = $auth['usuario_id'];
         require_once APPLICATION_PATH . '/forms/AlterarDados.php';
         $this->view->form = $form = new Application_Form_AlterarDados();
         $usuarioModel = new Application_Model_Usuario();
         if ($this->_request->isPost()) {
             $this->view->form->setDefaults($this->_request->getPost());
             $data = $this->view->form->getValues();
             if ($this->view->form->isValid($data)) {
                 if ($data['senha'] != '') {
                     $data['senha'] = md5($data['senha']);
                 } else {
                     unset($data['senha']);
                 }
                 unset($data['repita_senha']);
                 $usuarioModel->update($data, 'idusuario = ' . $id);
                 return $this->_helper->redirector('index');
             }
         }
         $usuario = $usuarioModel->find($id)->current();
         $this->view->form->setDefaults($usuario->toArray());
     }
 }