Prepare for moving into monorepo

src/Bundle/ChillPerson/Export/AbstractAccompanyingPeriodExportElement.php

@@ -0,0 +1,59 @@
+<?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
+{
+    /**
+     * Return true if "accompanying_period" alias is present in the query alises.
+     * 
+     * @param QueryBuilder $query
+     * @return bool
+     */
+    protected function havingAccompanyingPeriodInJoin(QueryBuilder $query): bool
+    {
+        $joins = $query->getDQLPart('join') ?? [];
+        
+        return (\in_array('accompanying_period', $query->getAllAliases()));
+    }
+    
+    /**
+     * Add the accompanying period alias to the query
+     * 
+     * @param QueryBuilder $query
+     * @return void
+     * @throws \LogicException if the "person" alias is not present and attaching accompanying period is not possible
+     */
+    protected function addJoinAccompanyingPeriod(QueryBuilder $query): void
+    {
+        if (FALSE === $this->havingAccompanyingPeriodInJoin($query)) {
+            if (FALSE === \in_array('person', $query->getAllAliases())) {
+                throw new \LogicException("the alias 'person' does not exists in "
+                    . "query builder");
+            }
+            
+            $query->join('person.accompanyingPeriods', 'accompanying_period');
+        }
+    }
+}