WorkgroupList::checkAjaxAction

protected function checkAjaxAction(string $action = ''): bool
{
	return in_array($action, [
		self::AJAX_ACTION_JOIN,
		self::AJAX_ACTION_SET_OWNER,
		self::AJAX_ACTION_SET_SCRUM_MASTER,
		self::AJAX_ACTION_DELETE_INCOMING_REQUEST,
		self::AJAX_ACTION_REJECT_OUTGOING_REQUEST,
		self::AJAX_ACTION_ADD_TO_ARCHIVE,
		self::AJAX_ACTION_REMOVE_FROM_ARCHIVE,
	], true);
}