fix: update database queries for mysql 8 compatibility

src/Repository/AssignmentRepository.php

@@ -5,6 +5,7 @@ namespace App\Repository;
 use App\Entity\Application;
 use App\Entity\Assignment;
 use App\Entity\Teamer;
+use App\Entity\Training;
 use App\Model\AssignmentFilterDto;
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
 use Doctrine\ORM\Query;
@@ -66,7 +67,6 @@ class AssignmentRepository extends ServiceEntityRepository
             ->select('assignment', 'destination', 'job_profile', 'application', 'disposition')
             ->innerJoin('assignment.destination', 'destination')
             ->innerJoin('assignment.jobProfile', 'job_profile')
-            ->leftJoin('job_profile.requiredTrainings', 'required_training')
             ->where($qb->expr()->andX(
                 $qb->expr()->orX(
                     $qb->expr()->gt('destination.dateFrom', ':now'),
@@ -81,7 +81,6 @@ class AssignmentRepository extends ServiceEntityRepository
             ))
             ->leftJoin('assignment.applications', 'application', Join::WITH, $qb->expr()->eq('application.teamer', ':teamer'))
             ->leftJoin('assignment.dispositions', 'disposition', Join::WITH, $qb->expr()->eq('disposition.teamer', ':teamer'))
-            ->groupBy('assignment')
             ->setParameter('teamer', $teamer)
             ->setParameter('status', [Assignment::STATUS_DRAFT, Assignment::STATUS_CALLED_OFF])
             ->setParameter('now', new \DateTimeImmutable())
@@ -89,8 +88,17 @@ class AssignmentRepository extends ServiceEntityRepository
 
         // limit result for teamers not having any trainings AND licences
         if (0 === $teamer->getTrainingAttendances()->count() && 0 === $teamer->getLicenses()->count()) {
+            // Use NOT EXISTS subquery instead of JOIN to avoid duplicates requiring GROUP BY
+            $subQb = $this->getEntityManager()->createQueryBuilder();
+            $subQb
+                ->select('1')
+                ->from(Training::class, 'rt')
+                ->join('rt.jobProfiles', 'jp')
+                ->where('jp = job_profile')
+            ;
+
             $qb
-                ->andWhere($qb->expr()->isNull('required_training'))
+                ->andWhere($qb->expr()->not($qb->expr()->exists($subQb->getDQL())))
                 ->andWhere($qb->expr()->eq('job_profile.requiredLicenses', ':requiredLicenses'))
                 ->setParameter('requiredLicenses', '[]')
             ;
@@ -346,7 +354,7 @@ class AssignmentRepository extends ServiceEntityRepository
         $codes = [];
 
         $result = $qb
-            ->select('assignment.id', 'destination.hotelCode')
+            ->select('destination.hotelCode')
             ->innerJoin('assignment.destination', 'destination')
             ->groupBy('destination.hotelCode')
             ->orderBy('destination.hotelCode', 'ASC')

src/Repository/DestinationRepository.php

@@ -118,7 +118,7 @@ class DestinationRepository extends ServiceEntityRepository
 
         return $qb
             ->select('destination.hotel', 'destination.hotelCode', 'destination.hotelBusProId')
-            ->groupBy('destination.hotelBusProId')
+            ->groupBy('destination.hotelBusProId', 'destination.hotel', 'destination.hotelCode')
             ->orderBy('destination.hotel', 'ASC')
             ->getQuery()
             ->getArrayResult()