feat: filter teamers by training attendances

src/Repository/TeamerRepository.php

@@ -94,6 +94,13 @@ class TeamerRepository extends ServiceEntityRepository
             ;
         }
 
+        if (true === $filterDto->hasNoTrainings()) {
+            $qb
+                ->leftJoin('teamer.trainingAttendances', 'training_attendance')
+                ->andWhere($qb->expr()->isNull('training_attendance'))
+            ;
+        }
+
         return $qb->getQuery();
     }
 }