abienvenu/Kyela

<?php
/*
 * Copyright 2016 Arnaud Bienvenu
 *
 * This file is part of Kyela.

 * Kyela 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.

 * Kyela 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 Kyela.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace Abienvenu\KyelaBundle\Controller;

use Abienvenu\KyelaBundle\Entity\Poll;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

abstract class PollSetterController extends Controller
{
    /** @var Poll $poll */
    protected $poll;

    /**
     * Set poll from Url or session
     */
    public function setPollFromRequest(Request $request)
    {
        $em = $this->getDoctrine()->getManager();
        $pollUrl = $request->get('pollUrl');
        if ($pollUrl) {
            $request->getSession()->set('pollUrl', $pollUrl);
        }
        else {
            $pollUrl = $request->getSession()->get('pollUrl');
        }
        if ($pollUrl) {
            $repository = $em->getRepository('KyelaBundle:Poll');
            $this->poll = $repository->findOneByUrl($pollUrl);
            if (!$this->poll)
            {
                $this->unsetPoll($request);
                throw new NotFoundHttpException('Poll object not found.');
            }
        }
    }

    protected function unsetPoll(Request $request)
    {
        $this->poll = null;
        $request->getSession()->remove('pollUrl');
    }
}