Discussions: Allow discontinuous post numbers + ignore hidden posts in counts/lastpost

This solves a few problems:
- 'hidden' posts will no longer cause the thread to be bumped to the
  front page.
- Deleting posts will no longer cause other posts to be renumbered (and
  hence will not break existing links to posts)
- Numbers of deleted posts will no longer be re-used (except when they
  were the last post in the thread - fixing this would require an
  additional column in 'threads', but it didn't seem worth the trouble)

2 files changed, 3 insertions, 3 deletions

diff --git a/lib/VNDB/DB/Discussions.pm b/lib/VNDB/DB/Discussions.pm
index 442f8032..0cc05303 100644
--- a/lib/VNDB/DB/Discussions.pm
+++ b/lib/VNDB/DB/Discussions.pm
@@ -40,14 +40,14 @@ sub dbThreadGet {
   }
 
   my @select = (
-    qw|t.id t.title t.count t.locked t.hidden t.private|, 't.poll_question IS NOT NULL AS haspoll',
+    qw|t.id t.c_lastnum t.title t.locked t.hidden t.private|, 't.poll_question IS NOT NULL AS haspoll',
     $o{what} =~ /lastpost/  ? (q|EXTRACT('epoch' from tpl.date) AS lastpost_date|, VNWeb::DB::sql_user('ul', 'lastpost_')) : (),
     $o{what} =~ /poll/      ? (qw|t.poll_question t.poll_max_options t.poll_preview t.poll_recast|) : (),
   );
 
   my @join = (
     $o{what} =~ /lastpost/ ? (
-      'JOIN threads_posts tpl ON tpl.tid = t.id AND tpl.num = t.count',
+      'JOIN threads_posts tpl ON tpl.tid = t.id AND tpl.num = t.c_lastnum',
       'JOIN users ul ON ul.id = tpl.uid'
     ) : (),
     $o{type} && $o{iid} ?
diff --git a/lib/VNDB/Handler/Misc.pm b/lib/VNDB/Handler/Misc.pm
index 70588d45..c316999d 100644
--- a/lib/VNDB/Handler/Misc.pm
+++ b/lib/VNDB/Handler/Misc.pm
@@ -122,7 +122,7 @@ sub homepage {
         my $boards = join ', ', map $BOARD_TYPE{$_->{type}}{txt}.($_->{iid}?' > '.$_->{title}:''), @{$_->{boards}};
         li;
          txt fmtage($_->{lastpost_date}).' ';
-         a href => "/$_->{id}.$_->{count}#last", title => "Posted in $boards", shorten $_->{title}, 25;
+         a href => "/$_->{id}.$_->{c_lastnum}#last", title => "Posted in $boards", shorten $_->{title}, 25;
          lit ' by ';
          VNWeb::HTML::user_($_, 'lastpost_');
         end;