create helper service to exclude accompanying periods from export result based on closing motive

src/Bundle/ChillMainBundle/Export/AccompanyingCourseExportHelper.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Chill\MainBundle\Export;
+
+use Doctrine\ORM\QueryBuilder;
+
+class AccompanyingCourseExportHelper
+{
+    public static function addClosingMotiveExclusionCriteria(QueryBuilder $qb): QueryBuilder
+    {
+        $qb->leftJoin('acp.closingMotive', 'cm')
+            ->andWhere(
+            $qb->expr()->orX(
+                $qb->expr()->eq('cm.isCanceledAccompanyingPeriod', 'false'),
+                $qb->expr()->isNull('acp.closingMotive')
+            )
+        );
+
+        return $qb;
+    }
+
+}