/** Add a reference type
  * @access public
  * @return void
  */
 public function addrefAction()
 {
     $form = new CoinClassForm();
     $form->details->setLegend('Add a new coin reference volume');
     $form->submit->setLabel('Submit details');
     $this->view->form = $form;
     if ($this->_request->isPost()) {
         if ($form->isValid($this->_request->getPost())) {
             $classes = new CoinClassifications();
             $classes->add($form->getValues());
             $this->getFlash()->addMessage('New reference volume added');
             $this->redirect('/admin/numismatics/refs/');
         } else {
             $this->getFlash()->addMessage($this->_formErrors);
             $form->populate($this->_request->getPost());
         }
     }
 }