/**
  * Performs a dataset deletion
  *
  * @param \Qsardw\Frontend\Application $app
  * @param int $id
  * @return string
  */
 public function deleteDataset(Application $app, $id)
 {
     $datasetDao = new DatasetDao($app['db']);
     $datasetDao->delete($id);
     return $app->redirect($app['url_generator']->generate('datasets_list'));
 }