static function getDefaultTopic()
{
$topic = TopicDao::findByName('special');
if (!isset($topic)) {
throw new Exception("'special' topic not found!");
}
return $topic;
}
static function getTopic($line)
{
$topicName = substr($line, strlen(self::TOPIC_DELIMITER));
$topic = TopicDao::findByName($topicName);
if (!isset($topic)) {
TopicService::createTopic($topicName);
$topic = TopicDao::findByName($topicName);
}
return $topic;
}