Tighten link between Accountings and owner entities

src/Repository/UserRepository.php

@@ -2,6 +2,7 @@
 
 namespace App\Repository;
 
+use App\Entity\Accounting;
 use App\Entity\User;
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
 use Doctrine\Persistence\ManagerRegistry;
@@ -40,6 +41,15 @@ class UserRepository extends ServiceEntityRepository implements PasswordUpgrader
         $this->getEntityManager()->flush();
     }
 
+    public function findOneByAccounting(Accounting $accounting): ?User
+    {
+        return $this->createQueryBuilder('u')
+            ->andWhere('u.accounting = :val')
+            ->setParameter('val', $accounting->getId())
+            ->getQuery()
+            ->getOneOrNullResult();
+    }
+
     //    /**
     //     * @return User[] Returns an array of User objects
     //     */