diff --git a/src/Form/AssignmentType.php b/src/Form/AssignmentType.php
index 131d727..b63c703 100644
--- a/src/Form/AssignmentType.php
+++ b/src/Form/AssignmentType.php
@@ -118,7 +118,7 @@ class AssignmentType extends AbstractType
                     return $qb
                         ->where($qb->expr()->like('user.roles', ':role'))
                         ->setParameter('role', '%ROLE_MANAGER%')
-                        ->orderBy('user.firstName', 'ASC')
+                        ->orderBy('user.firstName', \SortDirection::Ascending)
                     ;
                 },
             ])
diff --git a/src/Form/JobProfileType.php b/src/Form/JobProfileType.php
index ec2cc3e..a9bb789 100644
--- a/src/Form/JobProfileType.php
+++ b/src/Form/JobProfileType.php
@@ -37,7 +37,7 @@ class JobProfileType extends AbstractType
                 'expanded' => true,
                 'query_builder' => function (EntityRepository $repository) {
                     return $repository->createQueryBuilder('job_profile')
-                        ->orderBy('job_profile.name', 'ASC')
+                        ->orderBy('job_profile.name', \SortDirection::Ascending)
                     ;
                 },
             ])
diff --git a/src/Form/TeamerFilterType.php b/src/Form/TeamerFilterType.php
index 8ed5bb4..1be8550 100644
--- a/src/Form/TeamerFilterType.php
+++ b/src/Form/TeamerFilterType.php
@@ -48,7 +48,7 @@ class TeamerFilterType extends AbstractType
                 'empty_label' => 'nicht filtern',
                 'query_builder' => function (EntityRepository $repository) {
                     return $repository->createQueryBuilder('job_profile')
-                        ->orderBy('job_profile.name', 'ASC');
+                        ->orderBy('job_profile.name', \SortDirection::Ascending);
                 },
             ])
             ->add('noTrainings', CheckboxType::class, [
diff --git a/src/Repository/ApplicationRepository.php b/src/Repository/ApplicationRepository.php
index 41410f5..672cb10 100644
--- a/src/Repository/ApplicationRepository.php
+++ b/src/Repository/ApplicationRepository.php
@@ -231,7 +231,7 @@ class ApplicationRepository extends ServiceEntityRepository
             ->innerJoin('application.teamer', 'teamer')
             ->innerJoin('teamer.user', 'user')
             ->where($qb->expr()->neq('application.status', ':status'))
-            ->orderBy('application.createdAt', 'DESC')
+            ->orderBy('application.createdAt', \SortDirection::Descending)
             ->setParameter('status', Application::STATUS_REJECTED)
             ->setMaxResults($limit)
             ->getQuery()
@@ -280,8 +280,8 @@ class ApplicationRepository extends ServiceEntityRepository
             ->innerJoin('application.assignment', 'assignment')
             ->innerJoin('assignment.destination', 'destination')
             ->groupBy('hotelCode')
-            ->orderBy('totalCount', 'DESC')
-            ->addOrderBy('hotelCode', 'ASC')
+            ->orderBy('totalCount', \SortDirection::Descending)
+            ->addOrderBy('hotelCode', \SortDirection::Ascending)
         ;
 
         SeasonPeriodFilter::apply($qb, $dateFrom, $dateTo);
diff --git a/src/Repository/AssignmentRepository.php b/src/Repository/AssignmentRepository.php
index c0c7308..69d9df6 100644
--- a/src/Repository/AssignmentRepository.php
+++ b/src/Repository/AssignmentRepository.php
@@ -152,7 +152,7 @@ class AssignmentRepository extends ServiceEntityRepository
             ;
         }
 
-        if (0 < count((array)$filterDto->getHotels())) {
+        if (0 < count((array) $filterDto->getHotels())) {
             $constraints = [];
             foreach ($filterDto->getHotels() as $index => $hotel) {
                 $constraints[] = $qb->expr()->like('destination.hotel', ':hotel'.$index);
@@ -293,7 +293,7 @@ class AssignmentRepository extends ServiceEntityRepository
         $result = $qb
             ->select('assignment', 'job_profile')
             ->innerJoin('assignment.jobProfile', 'job_profile')
-            ->orderBy('job_profile.name', 'ASC')
+            ->orderBy('job_profile.name', \SortDirection::Ascending)
             ->where($qb->expr()->isNull('assignment.deletedAt'))
             ->getQuery()
             ->getResult()
@@ -314,7 +314,7 @@ class AssignmentRepository extends ServiceEntityRepository
             ->innerJoin('assignment.destination', 'destination')
             ->innerJoin('assignment.jobProfile', 'job_profile')
             ->innerJoin('assignment.owner', 'owner')
-            ->orderBy('assignment.createdAt', 'DESC')
+            ->orderBy('assignment.createdAt', \SortDirection::Descending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
@@ -358,7 +358,7 @@ class AssignmentRepository extends ServiceEntityRepository
         }
 
         return $qb
-            ->orderBy('destination.dateFrom', 'ASC')
+            ->orderBy('destination.dateFrom', \SortDirection::Ascending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
diff --git a/src/Repository/AvailabilityRepository.php b/src/Repository/AvailabilityRepository.php
index 31f3641..4d0aef9 100644
--- a/src/Repository/AvailabilityRepository.php
+++ b/src/Repository/AvailabilityRepository.php
@@ -35,7 +35,7 @@ class AvailabilityRepository extends ServiceEntityRepository
                 $qb->expr()->gt('availability.dateFrom', ':today'),
                 $qb->expr()->isNull('availability.deletedAt')
             ))
-            ->orderBy('availability.dateFrom', 'ASC')
+            ->orderBy('availability.dateFrom', \SortDirection::Ascending)
             ->setParameter('today', new \DateTimeImmutable())
         ;
 
@@ -116,7 +116,7 @@ class AvailabilityRepository extends ServiceEntityRepository
                 ),
                 $qb->expr()->isNull('availability.deletedAt')
             ))
-            ->orderBy('availability.dateFrom', 'ASC')
+            ->orderBy('availability.dateFrom', \SortDirection::Ascending)
             ->setParameter('teamer', $teamer)
             ->setParameter('availabilities', $teamer->getAvailabilities())
             ->setParameter('today', new \DateTimeImmutable())
@@ -131,7 +131,7 @@ class AvailabilityRepository extends ServiceEntityRepository
 
         return $qb
             ->where($qb->expr()->isNotNull('availability.owner'))
-            ->orderBy('availability.createdAt', 'DESC')
+            ->orderBy('availability.createdAt', \SortDirection::Descending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
diff --git a/src/Repository/ContactRepository.php b/src/Repository/ContactRepository.php
index 363d44c..f8a28d1 100644
--- a/src/Repository/ContactRepository.php
+++ b/src/Repository/ContactRepository.php
@@ -28,7 +28,7 @@ class ContactRepository extends ServiceEntityRepository
         return $qb
             ->leftJoin('contact.photo', 'photo')
             ->where($qb->expr()->isNull('contact.destination'))
-            ->orderBy('contact.name', 'ASC')
+            ->orderBy('contact.name', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -41,8 +41,8 @@ class ContactRepository extends ServiceEntityRepository
         return $qb
             ->leftJoin('contact.photo', 'photo')
             ->where($qb->expr()->isNotNull('contact.destination'))
-            ->orderBy('contact.name', 'ASC')
-            ->addOrderBy('contact.destination', 'ASC')
+            ->orderBy('contact.name', \SortDirection::Ascending)
+            ->addOrderBy('contact.destination', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
diff --git a/src/Repository/DestinationRepository.php b/src/Repository/DestinationRepository.php
index 045222a..b908081 100644
--- a/src/Repository/DestinationRepository.php
+++ b/src/Repository/DestinationRepository.php
@@ -89,8 +89,8 @@ class DestinationRepository extends ServiceEntityRepository
         }
 
         $dates = $qb
-            ->orderBy('destination.dateFrom', 'ASC')
-            ->addOrderBy('destination.product', 'ASC')
+            ->orderBy('destination.dateFrom', \SortDirection::Ascending)
+            ->addOrderBy('destination.product', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -119,7 +119,7 @@ class DestinationRepository extends ServiceEntityRepository
         return $qb
             ->select('destination.hotel', 'destination.hotelCode', 'destination.hotelBusProId')
             ->groupBy('destination.hotelBusProId', 'destination.hotel', 'destination.hotelCode')
-            ->orderBy('destination.hotel', 'ASC')
+            ->orderBy('destination.hotel', \SortDirection::Ascending)
             ->getQuery()
             ->getArrayResult()
         ;
diff --git a/src/Repository/DispositionRepository.php b/src/Repository/DispositionRepository.php
index 57866a1..af80504 100644
--- a/src/Repository/DispositionRepository.php
+++ b/src/Repository/DispositionRepository.php
@@ -118,7 +118,7 @@ class DispositionRepository extends ServiceEntityRepository
             ->setParameter('teamer', $teamer)
             ->setParameter('assignmentStatus', Assignment::STATUS_CALLED_OFF)
             ->setParameter('dispositionStatus', Disposition::STATUS_CALLED_OFF)
-            ->orderBy('destination.dateFrom', 'DESC')
+            ->orderBy('destination.dateFrom', \SortDirection::Descending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
@@ -173,7 +173,7 @@ class DispositionRepository extends ServiceEntityRepository
                 Disposition::STATUS_NEW,
                 Disposition::STATUS_CONFIRMED,
             ])
-            ->orderBy('destination.dateFrom', 'ASC')
+            ->orderBy('destination.dateFrom', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -198,7 +198,7 @@ class DispositionRepository extends ServiceEntityRepository
                 $qb->expr()->gte('destination.dateTo', ':dateTo'),
                 $qb->expr()->eq('disposition.status', ':status')
             ))
-            ->orderBy('destination.dateFrom', 'ASC')
+            ->orderBy('destination.dateFrom', \SortDirection::Ascending)
             ->setParameter('hotelCodes', $hotelCodes)
             ->setParameter('dateTo', new \DateTimeImmutable())
             ->setParameter('status', Disposition::STATUS_CONFIRMED)
@@ -300,7 +300,7 @@ class DispositionRepository extends ServiceEntityRepository
             ->innerJoin('assignment.destination', 'destination')
             ->innerJoin('assignment.jobProfile', 'job_profile')
             ->where($qb->expr()->gt('destination.dateFrom', ':dateFrom'))
-            ->orderBy('disposition.createdAt', 'DESC')
+            ->orderBy('disposition.createdAt', \SortDirection::Descending)
             ->setParameter('dateFrom', new \DateTimeImmutable())
             ->setMaxResults($limit)
             ->getQuery()
@@ -341,7 +341,7 @@ class DispositionRepository extends ServiceEntityRepository
                 Disposition::STATUS_COMPLETED,
             ])
             ->groupBy('destination.hotelCode', 'destination.hotel')
-            ->orderBy('destination.hotel', 'ASC')
+            ->orderBy('destination.hotel', \SortDirection::Ascending)
         ;
 
         SeasonPeriodFilter::apply($qb, $dateFrom, $dateTo);
@@ -423,7 +423,7 @@ class DispositionRepository extends ServiceEntityRepository
                 Disposition::STATUS_COMPLETED,
             ])
             ->groupBy('hotelCode')
-            ->orderBy('hotelCode', 'ASC')
+            ->orderBy('hotelCode', \SortDirection::Ascending)
         ;
 
         SeasonPeriodFilter::apply($qb, $dateFrom, $dateTo);
@@ -643,7 +643,7 @@ class DispositionRepository extends ServiceEntityRepository
             ->setParameter('dueDate', $dueDate)
             ->setParameter('status', Disposition::STATUS_NEW)
             ->setParameter('assignmentStatus', [Assignment::STATUS_CALLED_OFF, Assignment::STATUS_DELETED])
-            ->orderBy('disposition.createdAt', 'ASC')
+            ->orderBy('disposition.createdAt', \SortDirection::Ascending)
             ->getQuery()
         ;
     }
diff --git a/src/Repository/FeeRepository.php b/src/Repository/FeeRepository.php
index f5f8f55..dd58cc1 100644
--- a/src/Repository/FeeRepository.php
+++ b/src/Repository/FeeRepository.php
@@ -27,7 +27,7 @@ class FeeRepository extends ServiceEntityRepository
 
         return $qb
             ->where($qb->expr()->isNull('fee.deletedAt'))
-            ->orderBy('fee.name', 'ASC')
+            ->orderBy('fee.name', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
diff --git a/src/Repository/FeedbackRepository.php b/src/Repository/FeedbackRepository.php
index c4ffcf7..d00313d 100644
--- a/src/Repository/FeedbackRepository.php
+++ b/src/Repository/FeedbackRepository.php
@@ -59,9 +59,9 @@ class FeedbackRepository extends ServiceEntityRepository
             ->innerJoin('feedback.feedbackSet', 'feedbackSet')
             ->andWhere($qb->expr()->eq('feedback.status', ':status'))
             ->setParameter('status', Feedback::STATUS_PUBLISHED)
-            ->orderBy('teamer.lastName', 'ASC')
-            ->addOrderBy('teamer.firstName', 'ASC')
-            ->addOrderBy('feedback.assignmentDateFrom', 'ASC')
+            ->orderBy('teamer.lastName', \SortDirection::Ascending)
+            ->addOrderBy('teamer.firstName', \SortDirection::Ascending)
+            ->addOrderBy('feedback.assignmentDateFrom', \SortDirection::Ascending)
         ;
 
         $this->applyFilterCriteria($qb, $filterDto);
@@ -118,7 +118,7 @@ class FeedbackRepository extends ServiceEntityRepository
             ->innerJoin('teamer.user', 'user')
             ->where($qb->expr()->eq('feedback.status', ':status'))
             ->setParameter('status', Feedback::STATUS_NEW)
-            ->orderBy('feedback.createdAt', 'DESC')
+            ->orderBy('feedback.createdAt', \SortDirection::Descending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
@@ -149,7 +149,7 @@ class FeedbackRepository extends ServiceEntityRepository
             ))
             ->setParameter('teamer', $teamer)
             ->setParameter('status', Feedback::STATUS_PUBLISHED)
-            ->orderBy('feedback.createdAt', 'DESC')
+            ->orderBy('feedback.createdAt', \SortDirection::Descending)
             ->setMaxResults($limit)
             ->getQuery()
             ->getResult()
diff --git a/src/Repository/JobProfileRepository.php b/src/Repository/JobProfileRepository.php
index d3446f1..dc9c7ea 100644
--- a/src/Repository/JobProfileRepository.php
+++ b/src/Repository/JobProfileRepository.php
@@ -29,7 +29,7 @@ class JobProfileRepository extends ServiceEntityRepository
             ->select('job_profile', 'required_training')
             ->leftJoin('job_profile.requiredTrainings', 'required_training')
             ->where($qb->expr()->isNull('job_profile.deletedAt'))
-            ->orderBy('job_profile.name', 'ASC')
+            ->orderBy('job_profile.name', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -41,7 +41,7 @@ class JobProfileRepository extends ServiceEntityRepository
 
         return $qb
             ->where($qb->expr()->like('job_profile.requiredLicenses', ':licenseType'))
-            ->orderBy('job_profile.name', 'ASC')
+            ->orderBy('job_profile.name', \SortDirection::Ascending)
             ->setParameter('licenseType', '%'.$licenseType.'%')
             ->getQuery()
             ->getResult()
diff --git a/src/Repository/NewsRepository.php b/src/Repository/NewsRepository.php
index 41f0400..5785a9e 100644
--- a/src/Repository/NewsRepository.php
+++ b/src/Repository/NewsRepository.php
@@ -22,8 +22,8 @@ class NewsRepository extends ServiceEntityRepository
 
         return $qb
             ->where($qb->expr()->neq('news.status', ':status'))
-            ->orderBy('news.status', 'DESC')
-            ->addOrderBy('news.createdAt', 'DESC')
+            ->orderBy('news.status', \SortDirection::Descending)
+            ->addOrderBy('news.createdAt', \SortDirection::Descending)
             ->setParameter('status', News::STATUS_DEACTIVATED)
             ->setMaxResults(1)
             ->getQuery()
diff --git a/src/Repository/StatisticsEventRepository.php b/src/Repository/StatisticsEventRepository.php
index 796e6c5..134922a 100644
--- a/src/Repository/StatisticsEventRepository.php
+++ b/src/Repository/StatisticsEventRepository.php
@@ -91,7 +91,7 @@ class StatisticsEventRepository extends ServiceEntityRepository
             ->where($qb->expr()->eq('event.name', ':name'))
             ->setParameter('name', $name->value)
             ->groupBy('value')
-            ->orderBy('total', 'DESC')
+            ->orderBy('total', \SortDirection::Descending)
         ;
 
         $filtered = null !== $dateFrom || null !== $dateTo;
diff --git a/src/Repository/TeamerRepository.php b/src/Repository/TeamerRepository.php
index 457797c..7717578 100644
--- a/src/Repository/TeamerRepository.php
+++ b/src/Repository/TeamerRepository.php
@@ -35,8 +35,8 @@ class TeamerRepository extends ServiceEntityRepository
     {
         return $this
             ->createListQueryBuilder($filterDto)
-            ->addOrderBy('teamer.viewed', 'asc')
-            ->addOrderBy('teamer.lastName', 'asc')
+            ->addOrderBy('teamer.viewed', \SortDirection::Ascending)
+            ->addOrderBy('teamer.lastName', \SortDirection::Ascending)
             ->getQuery()
         ;
     }
@@ -67,7 +67,7 @@ class TeamerRepository extends ServiceEntityRepository
             )
             // teamer.viewed says nothing about a mailing and a DISTINCT select cannot order
             // by a field it does not carry, so this list sorts by name alone
-            ->addOrderBy('teamer.lastName', 'asc')
+            ->addOrderBy('teamer.lastName', \SortDirection::Ascending)
             ->getQuery()
             ->getArrayResult()
         ;
@@ -177,8 +177,8 @@ class TeamerRepository extends ServiceEntityRepository
                 $qb->expr()->like('teamer.firstName', ':search'),
             ))
             ->andWhere($qb->expr()->isNull('teamer.deletedAt'))
-            ->orderBy('teamer.lastName', 'ASC')
-            ->addOrderBy('teamer.firstName', 'ASC')
+            ->orderBy('teamer.lastName', \SortDirection::Ascending)
+            ->addOrderBy('teamer.firstName', \SortDirection::Ascending)
             ->setParameter('search', '%'.$this->escapeLikeWildcards($search).'%')
             ->getQuery()
             ->getResult()
diff --git a/src/Repository/TrainingRepository.php b/src/Repository/TrainingRepository.php
index fafd59f..24ef9fe 100644
--- a/src/Repository/TrainingRepository.php
+++ b/src/Repository/TrainingRepository.php
@@ -29,7 +29,7 @@ class TrainingRepository extends ServiceEntityRepository
             ->select('training', 'training_attendance')
             ->leftJoin('training.trainingAttendances', 'training_attendance')
             ->where($qb->expr()->isNull('training.deletedAt'))
-            ->orderBy('training.name', 'ASC')
+            ->orderBy('training.name', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
diff --git a/src/Repository/UploadRepository.php b/src/Repository/UploadRepository.php
index 391cd13..3af08a7 100644
--- a/src/Repository/UploadRepository.php
+++ b/src/Repository/UploadRepository.php
@@ -55,7 +55,7 @@ class UploadRepository extends ServiceEntityRepository
                 $qb->expr()->like('upload.displayName', ':filename')
             ))
             ->setParameter('filename', '%'.$this->escapeLikeWildcards($search).'%')
-            ->orderBy('upload.originalFilename', 'ASC')
+            ->orderBy('upload.originalFilename', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -97,7 +97,7 @@ class UploadRepository extends ServiceEntityRepository
                 $qb->expr()->eq('upload.status', ':status'),
                 $qb->expr()->isNull('upload.downloadedAt'),
             ))
-            ->orderBy('upload.createdAt', 'DESC')
+            ->orderBy('upload.createdAt', \SortDirection::Descending)
             ->setParameter('type', $type)
             ->setParameter('status', $status)
             ->getQuery()
@@ -126,7 +126,7 @@ class UploadRepository extends ServiceEntityRepository
             ->innerJoin('assignment.destination', 'destination')
             ->innerJoin('disposition.teamer', 'teamer')
             ->innerJoin('teamer.user', 'user')
-            ->addOrderBy('FIELD(upload.status, :checked, :new)', 'DESC')
+            ->addOrderBy('FIELD(upload.status, :checked, :new)', \SortDirection::Descending)
             ->setParameter('new', Upload::STATUS_NEW)
             ->setParameter('checked', Upload::STATUS_CHECKED)
         ;
@@ -207,7 +207,7 @@ class UploadRepository extends ServiceEntityRepository
                 $qb->expr()->eq('upload.type', ':type'),
                 $qb->expr()->in('upload.status', ':status')
             ))
-            ->orderBy('upload.createdAt', 'DESC')
+            ->orderBy('upload.createdAt', \SortDirection::Descending)
             ->setParameter('type', $type)
             ->setParameter('status', [Upload::STATUS_NEW, Upload::STATUS_PENDING])
             ->getQuery()
diff --git a/src/Repository/UserRepository.php b/src/Repository/UserRepository.php
index bfa60b4..6caff4b 100644
--- a/src/Repository/UserRepository.php
+++ b/src/Repository/UserRepository.php
@@ -55,7 +55,7 @@ class UserRepository extends ServiceEntityRepository
             // andWhere after a chain of orWhere yields "(... OR ...) AND ...", so this
             // narrows the whole list rather than widening it by one more alternative
             ->andWhere($qb->expr()->isNull('u.deletedAt'))
-            ->orderBy('u.lastName', 'ASC')
+            ->orderBy('u.lastName', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -83,8 +83,8 @@ class UserRepository extends ServiceEntityRepository
             ->andWhere($roleMatches)
             ->andWhere($qb->expr()->isNull('user.deletedAt'))
             ->andWhere($qb->expr()->isNull('user.disabledAt'))
-            ->orderBy('user.lastName', 'ASC')
-            ->addOrderBy('user.firstName', 'ASC')
+            ->orderBy('user.lastName', \SortDirection::Ascending)
+            ->addOrderBy('user.firstName', \SortDirection::Ascending)
             ->getQuery()
             ->getResult()
         ;
@@ -132,8 +132,8 @@ class UserRepository extends ServiceEntityRepository
             ))
             ->andWhere('JSON_CONTAINS(user.roles, :role) = 1')
             ->andWhere($qb->expr()->isNull('user.deletedAt'))
-            ->orderBy('user.lastName', 'ASC')
-            ->addOrderBy('user.firstName', 'ASC')
+            ->orderBy('user.lastName', \SortDirection::Ascending)
+            ->addOrderBy('user.firstName', \SortDirection::Ascending)
             ->setParameter('search', '%'.$this->escapeLikeWildcards($search).'%')
             ->setParameter('role', json_encode($role))
             ->getQuery()