<?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');
        }
    }
}