public function addAction()
 {
     $form = $this->getServiceLocator()->get("Admin\\Form\\ClassificationForm");
     $request = $this->getRequest();
     if ($request->isPost()) {
         $classification = new Classification();
         $form->setInputFilter($classification->getInputFilter());
         $data = $request->getPost()->toArray();
         $form->setData($data);
         if ($form->isValid()) {
             $classification->exchangeArray($data);
             $this->getClassificationTable()->save($classification);
             return $this->redirect()->toRoute('admin/classification');
         }
     }
     return array('form' => $form, 'config' => $this->config);
 }