public function barcoderequestAction()
 {
     $cdrequest = $this->_request->getParam('cdrequest');
     $requestexamination = new RequestexaminationModel();
     if ($cdrequest != null) {
         $dataRequestSample = $requestexamination->fetchAll($requestexamination->getFullSampleData($cdrequest));
         foreach ($dataRequestSample as $singleSample) {
             $singleSample['dtcollection'] = new Zend_Date($singleSample['dtcollection'], 'YYYY-MM-dd HH:mm:ss');
             $singleSample['dtcollection'] = $singleSample['dtcollection']->toString('dd-MM-YYYY HH:mm:ss');
         }
         $this->view->dataSample = $dataRequestSample;
     }
 }