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[public-inbox.git] / lib / PublicInbox / Over.pm

diff --git a/lib/PublicInbox/Over.pm b/lib/PublicInbox/Over.pm
index 0bd6008ba4adbfc706f742cdfbba08265616436b..309e044af91a1b35907b057750afe930d6a9b081 100644 (file)
--- a/lib/PublicInbox/Over.pm
+++ b/lib/PublicInbox/Over.pm
@@ -147,4 +147,33 @@ SELECT * from OVER where num = ? LIMIT 1
        undef;
 }
 
+sub next_by_mid {
+       my ($self, $mid, $id, $prev) = @_;
+       my $dbh = $self->connect;
+
+       unless (defined $$id) {
+               my $sth = $dbh->prepare_cached(<<'', undef, 1);
+       SELECT id FROM msgid WHERE mid = ? LIMIT 1
+
+               $sth->execute($mid);
+               $$id = $sth->fetchrow_array;
+               defined $$id or return;
+       }
+       my $sth = $dbh->prepare_cached(<<"", undef, 1);
+SELECT num FROM id2num WHERE id = ? AND num > ?
+ORDER BY num ASC LIMIT 1
+
+       $$prev ||= 0;
+       $sth->execute($$id, $$prev);
+       my $num = $sth->fetchrow_array or return;
+       $$prev = $num;
+
+       $sth = $dbh->prepare_cached(<<"", undef, 1);
+SELECT num,ts,ds,ddd FROM over WHERE num = ? LIMIT 1
+
+       $sth->execute($num);
+       my $smsg = $sth->fetchrow_hashref or return;
+       load_from_row($smsg);
+}
+
 1;