public function refreshBlockOutputCache()
    {
        $db = Loader::db();
        $cID = $this->getBlockCollectionID();
        $bID = $this->getBlockID();
        $c = $this->getBlockCollectionObject();
        $v = [$c->getCollectionID(), $c->getVersionID(), $this->getAreaHandle(), $bID];
        $db->Execute(
            'update CollectionVersionBlocksOutputCache set btCachedBlockOutputExpires = 0 where cID = ? and cvID = ? and arHandle = ? and bID = ?',
            $v
            );
    }