public function executePost(sfWebRequest $request)
{
$this->forward400If('' === (string) $request['body'], 'body parameter is not specified.');
if ($limit = sfConfig::get('app_smt_comment_post_limit')) {
$this->forward400If(mb_strlen($request['body']) > $limit, 'body parameter is too long');
}
$comment = new CommunityTopicComment();
$comment->setMemberId($this->member->getId());
$comment->setCommunityTopicId($request['community_topic_id']);
$this->forward400If(false === $comment->getCommunityTopic()->isCreatableCommunityTopicComment($this->member->getId()), 'you are not allowed to create comments on this topic');
$comment->setBody($request['body']);
$comment->save();
$this->comment = $comment;
}
