public function duplicateAction()
 {
     $params = $this->getRequest()->getParams();
     $id = $params['id'];
     $originalPl = new Application_Model_Playlist($id);
     $newPl = new Application_Model_Playlist();
     $contents = $originalPl->getContents();
     foreach ($contents as &$c) {
         if ($c['type'] == '0') {
             $c[1] = 'audioclip';
         } else {
             if ($c['type'] == '2') {
                 $c[1] = 'block';
             } else {
                 if ($c['type'] == '1') {
                     $c[1] = 'stream';
                 }
             }
         }
         $c[0] = $c['item_id'];
     }
     $newPl->addAudioClips($contents, null, 'before');
     $newPl->setCreator(Application_Model_User::getCurrentUser()->getId());
     $newPl->setDescription($originalPl->getDescription());
     list($plFadeIn, ) = $originalPl->getFadeInfo(0);
     list(, $plFadeOut) = $originalPl->getFadeInfo($originalPl->getSize() - 1);
     $newPl->setfades($plFadeIn, $plFadeOut);
     $newPl->setName(sprintf(_("Copy of %s"), $originalPl->getName()));
 }