add filtering on accompanying period + fix problems in gender filter

Export/AbstractAccompanyingPeriodExportElement.php

@@ -0,0 +1,47 @@
+<?php
+/*
+ * Copyright (C) 2019 Champs Libres Cooperative <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+namespace Chill\PersonBundle\Export;
+
+use Doctrine\ORM\QueryBuilder;
+
+/**
+ * 
+ *
+ */
+class AbstractAccompanyingPeriodExportElement
+{
+    protected function havingAccompanyingPeriodInJoin(QueryBuilder $query)
+    {
+        $joins = $query->getDQLPart('join');
+        
+        foreach ($joins['person'] as $join) {
+            if ($join->getAlias() === 'accompanying_period') {
+                return true;
+            }
+        }
+        
+        return false;
+    }
+    
+    protected function addJoinAccompanyingPeriod(QueryBuilder $query)
+    {
+        if (FALSE === $this->havingAccompanyingPeriodInJoin($query)) {
+            $query->join('person.accompanyingPeriods', 'accompanying_period');
+        }
+    }
+}