/**
* Listener for comments' votes persistence to avoid voting for own comments
* and multiple voting for comments
*
* @param VotePersistEvent $event
* @return void
*/
public function avoidIncorrectVoting(VotePersistEvent $event)
{
try {
if (!$this->context->isGranted(AuthenticatedVoter::IS_AUTHENTICATED_REMEMBERED)) {
throw new \Exception('Avoid voting if user is not authenticated');
}
/** @var $vote SignedVoteInterface */
$vote = $event->getVote();
/** @var $user User */
$user = $this->context->getToken()->getUser();
if ($vote->getVoter() !== $user) {
throw new \Exception('Attempt to vote for different user');
}
if ($vote->getComment()->getAuthor() === $user) {
throw new \Exception('Attempt to vote for own comment');
}
$existingVote = $this->voteManager->findVoteBy(array('comment' => $vote->getComment(), 'voter' => $user));
if ($existingVote) {
throw new \Exception('Attempt to vote multiple times for same comment');
}
} catch (\Exception $e) {
$event->abortPersistence();
$event->stopPropagation();
}
}
/**
* {@inheritDoc}
*/
public function getClass()
{
return $this->realManager->getClass();
}
