/**
  * @return string
  */
 public function actionIndex()
 {
     $rivegaucheDataProvider = RivegaucheProductSearch::getStatistics();
     $iledebeauteDataProvider = IledebeauteProductSearch::getStatistics();
     $letualDataProvider = LetualProductSearch::getStatistics();
     $elizeDataProvider = ElizeProductSearch::getNewStatistics();
     return $this->render('index', ['rivegaucheDataProvider' => $rivegaucheDataProvider, 'iledebeauteDataProvider' => $iledebeauteDataProvider, 'letualDataProvider' => $letualDataProvider, 'elizeDataProvider' => $elizeDataProvider]);
 }