App\Http\Controllers\Forum\TopicsController::unwatchMulti PHP Method

    public function unwatchMulti()
    {
        $topicIds = explode(',', Request::input('topic_ids'));
        $topics = Topic::whereIn('topic_id', $topicIds);
        $unwatchTopics = $topics->get()->filter(function ($t) {
            return priv_check('ForumTopicWatchRemove', $t)->can();
        });
        TopicWatch::remove($unwatchTopics, Auth::user());
        return ['message' => trans('forum.topics.watch.watched-0')];
    }