/**
  * Populates elasticsearch with data.
  *
  * @param Manager $manager
  * @param array   $data
  */
 protected function populateElasticsearchWithData($manager, array $data)
 {
     if (!empty($data)) {
         foreach ($data as $type => $documents) {
             foreach ($documents as $document) {
                 $manager->bulk('index', $type, $document);
             }
         }
         $manager->commit();
         $manager->refresh();
     }
 }