/**
  * Signup
  */
 public function signupAction()
 {
     $form = new Form_User();
     if ($this->getRequest()->isPost() && $form->isValid($this->getRequest()->getPost())) {
         $userData = $form->getValues();
         $userData['id'] = User::fetchNextId();
         // save user
         $user = new User($userData['id']);
         $user->setValue($userData);
         $users = new Users();
         $users->add($userData['id']);
         // save login to id link
         User::setLoginToIdLink($userData['login'], $userData['id']);
         $this->_redirect('/user/login');
     }
     $this->view->form = $form;
 }