public function add_topic_action()
{
if (!$GLOBALS['perm']->have_studip_perm("tutor", $_SESSION['SessionSeminar'])) {
throw new AccessDeniedException();
}
if (!Request::get("title")) {
throw new Exception("Geben Sie einen Titel an.");
}
$date = new CourseDate(Request::option("termin_id"));
$seminar_id = $date['range_id'];
$title = studip_utf8decode(Request::get("title"));
$topic = CourseTopic::findByTitle($seminar_id, $title);
if (!$topic) {
$topic = new CourseTopic();
$topic['title'] = $title;
$topic['seminar_id'] = $seminar_id;
$topic['author_id'] = $GLOBALS['user']->id;
$topic['description'] = "";
$topic->store();
}
$date->addTopic($topic);
$factory = $this->get_template_factory();
$output = array('topic_id' => $topic->getId());
$template = $factory->open($this->get_default_template("_topic_li"));
$template->set_attribute("topic", $topic);
$template->set_attribute("date", $date);
$output['li'] = $template->render();
$this->render_json($output);
}
