fix nationality aggregator

src/Bundle/ChillMainBundle/Repository/CountryRepository.php

@@ -14,6 +14,7 @@ namespace Chill\MainBundle\Repository;
 use Chill\MainBundle\Entity\Country;
 use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\ORM\EntityRepository;
+use Doctrine\ORM\QueryBuilder;
 use Doctrine\Persistence\ObjectRepository;
 
 final class CountryRepository implements ObjectRepository
@@ -25,6 +26,11 @@ final class CountryRepository implements ObjectRepository
         $this->repository = $entityManager->getRepository(Country::class);
     }
 
+    public function createQueryBuilder(string $alias, ?string $indexBy = null): QueryBuilder
+    {
+        return $this->repository->createQueryBuilder($alias, $indexBy);
+    }
+
     public function find($id, $lockMode = null, $lockVersion = null): ?Country
     {
         return $this->repository->find($id, $lockMode, $lockVersion);

src/Bundle/ChillPersonBundle/Export/Aggregator/PersonAggregators/NationalityAggregator.php

@@ -124,17 +124,19 @@ final class NationalityAggregator implements AggregatorInterface, ExportElementV
                 ->getQuery()
                 ->getResult(\Doctrine\ORM\Query::HYDRATE_SCALAR);
 
+                
             // initialize array and add blank key for null values
             $labels = [
                 '' => $this->translator->trans('without data'),
                 '_header' => $this->translator->trans('Nationality'),
             ];
 
+            
             foreach ($countries as $row) {
                 $labels[$row['c_countryCode']] = $this->translatableStringHelper->localize($row['c_name']);
             }
         }
-
+        
         if ('continent' === $data['group_by_level']) {
             $labels = [
                 'EU' => $this->translator->trans('Europe'),
@@ -149,9 +151,10 @@ final class NationalityAggregator implements AggregatorInterface, ExportElementV
             ];
         }
 
-        return static function (string $value) use ($labels): string {
+        return function ($value) use ($labels): string {
             return $labels[$value];
         };
+
     }
 
     public function getQueryKeys($data)