gnu-social/plugins/Poll/Poll.php

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<?php
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\Poll;
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use App\Core\DB\DB;
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use App\Core\Event;
use App\Core\Form;
use function App\Core\I18n\_m;
use App\Core\Modules\NoteHandlerPlugin;
use App\Core\Router\RouteLoader;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\InvalidFormException;
use App\Util\Exception\NotFoundException;
use App\Util\Exception\RedirectException;
use App\Util\Exception\ServerException;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\HttpFoundation\Request;
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/**
* Poll plugin main class
*
* @package GNUsocial
* @category Poll
*
* @author Daniel Brandao <up201705812@fe.up.pt>
* @author Hugo Sales <hugo@hsal.es>
* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class Poll extends NoteHandlerPlugin
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{
/**
* Map URLs to actions
*
* @param RouteLoader $r
*
* @return bool hook value; true means continue processing, false means stop.
*/
public function onAddRoute(RouteLoader $r): bool
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{
$r->connect('newpoll', 'main/poll/new/{num<\\d+>?3}', [Controller\NewPoll::class, 'newpoll']);
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return Event::next;
}
/**
* Populate twig vars
*
* @param array $vars
*
* @return bool hook value; true means continue processing, false means stop.
*/
public function onStartTwigPopulateVars(array &$vars): bool
{
$vars['tabs'][] = ['title' => 'Poll',
'href' => 'newpoll',
];
return Event::next;
}
/**
* Output our dedicated stylesheet
*
* @param array $styles stylesheets path
*
* @return bool hook value; true means continue processing, false means stop.
*/
public function onStartShowStyles(array &$styles): bool
{
$styles[] = 'poll/poll.css';
return Event::next;
}
/**
* Output our note content to the timeline
*
* @param Request $request
* @param Note $note
* @param array $otherContent content
*
* @throws InvalidFormException invalid forms
* @throws RedirectException
* @throws ServerException User already responded to poll
* @throws \App\Util\Exception\NoLoggedInUser user not logged in
*
* @return bool hook value; true means continue processing, false means stop.
*/
public function onShowNoteContent(Request $request, Note $note, array &$otherContent)
{
$responses = null;
$formView = null;
try {
$poll = DB::findOneBy('poll', ['note_id' => $note->getId()]);
} catch (NotFoundException $e) {
return Event::next;
}
if (Common::isLoggedIn() && !Entity\PollResponse::exits($poll->getId(), Common::ensureLoggedIn()->getId())) {
$opts = $poll->getOptionsArr();
$options = [];
for ($i = 1; $i <= count($opts); ++$i) {
$options[$opts[$i - 1]] = $i;
}
$formOptions = [
['Options' . $poll->getId(), ChoiceType::class, [
'choices' => $options,
'expanded' => true,
]],
['note_id', HiddenType::class, ['data' => $note->getId()]],
['pollresponse', SubmitType::class, ['label' => _m('Vote')]],
];
$form = Form::create($formOptions);
$formView = $form->createView();
$ret = self::noteActionHandle($request, $form, $note, 'pollresponse', /** TODO needs documentation */ function ($note, $data) {
$user = Common::ensureLoggedIn();
try {
$poll = DB::findOneBy('poll', ['note_id' => $note->getId()]);
} catch (NotFoundException $e) {
return Event::next;
}
if (Entity\PollResponse::exits($poll->getId(), $user->getId())) {
return Event::next;
}
$selection = array_values($data)[1];
if (!$poll->isValidSelection($selection)) {
throw new InvalidFormException();
}
if (Entity\PollResponse::exits($poll->getId(), $user->getId())) {
throw new ServerException('User already responded to poll');
}
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$pollResponse = Entity\PollResponse::create(['poll_id' => $poll->getId(), 'actor_id' => $user->getId(), 'selection' => $selection]);
DB::persist($pollResponse);
DB::flush();
throw new RedirectException();
});
if ($ret != null) {
return $ret;
}
} else {
$responses = $poll->countResponses();
}
$otherContent[] = ['name' => 'Poll', 'vars' => ['question' => $poll->getQuestion(), 'responses' => $responses, 'form' => $formView]];
return Event::next;
}
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}