//Comment system
public function checkPostStatus($note,$uid)
{
    if (!$uid)
        return false;

    $friendModel = MooCore::getInstance()->getModel('Friend');
    if ($uid == $note['Note']['user_id'])
        return true;

    if ($note['Note']['privacy'] == PRIVACY_EVERYONE)
    {
        return true;
    }

    if ($note['Note']['privacy'] == PRIVACY_FRIENDS)
    {
        $areFriends = $friendModel->areFriends( $uid, $note['Blog']['user_id'] );
        if ($areFriends)
            return true;
    }

    return false;
}
public function checkSeeActivity($note,$uid)
{
    return $this->checkPostStatus($note,$uid);
}
//