+sub unread_query {
+ return $ND::DBH->prepare_cached(q{
+ SELECT count(*) AS unread, max(ftv.time) AS last_vist
+FROM forum_boards fb NATURAL JOIN forum_threads ft
+ JOIN forum_posts fp USING (ftid) LEFT OUTER JOIN
+ (SELECT * FROM forum_thread_visits WHERE uid = $1) ftv ON ftv.ftid = ft.ftid
+WHERE (ftv.time IS NULL OR fp.time > ftv.time) AND fbid > 0 AND
+ fbid IN (SELECT fbid FROM forum_access WHERE gid IN (SELECT groups($1)))
+ });
+}
+