public function actionCopy()
 {
     $model = new FinvInvoice();
     $model->scenario = $this->scenario;
     if (isset($_GET['finv_id'])) {
         try {
             if ($model->duplicate($_GET['finv_id'])) {
                 if (isset($_GET['returnUrl'])) {
                     $this->redirect($_GET['returnUrl']);
                 } else {
                     $this->redirect(array('view', 'finv_id' => $model->finv_id));
                 }
             }
         } catch (Exception $e) {
             $model->addError('finv_id', $e->getMessage());
         }
     }
     $this->render('copy', array('model' => $model));
 }