static function setOfferDisplayPrice(&$offers)
 {
     foreach ($offers as &$offer) {
         $offer->offer_average_display_price = CurrencyService::convertCurrency($offer->offer_average_price, "EUR", "EUR");
         foreach ($offer->daily as &$daily) {
             $daily['display_price_final'] = CurrencyService::convertCurrency($daily['price_final'], "EUR", "EUR");
         }
     }
 }
 static function setExcursionDisplayPrice(&$excursions)
 {
     foreach ($excursions as $excursion) {
         $excursion->excursion_average_price = CurrencyService::convertCurrency($excursion->excursion_average_price, "EUR", "EUR");
         foreach ($excursion->daily as $daily) {
             $daily['display_price_final'] = CurrencyService::convertCurrency($daily['price_final'], "EUR", "EUR");
         }
     }
 }