X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FOver.pm;h=19da056a10aff5de4455e80c1e30b03190352258;hb=d7780e12856d83b9f5c58586691e2fbe711321ed;hp=49ba180b94478fa4dd92831f709715ffa0796849;hpb=7cc8cb8a8554e1eae817ce2f21dd28b413d3bafc;p=public-inbox.git

diff --git a/lib/PublicInbox/Over.pm b/lib/PublicInbox/Over.pm
index 49ba180b..19da056a 100644
--- a/lib/PublicInbox/Over.pm
+++ b/lib/PublicInbox/Over.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2018-2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2018-2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # for XOVER, OVER in NNTP, and feeds/homepage/threads in PSGI
@@ -7,7 +7,7 @@
 package PublicInbox::Over;
 use strict;
 use v5.10.1;
-use DBI;
+use DBI qw(:sql_types); # SQL_BLOB
 use DBD::SQLite;
 use PublicInbox::Smsg;
 use Compress::Zlib qw(uncompress);
@@ -349,4 +349,37 @@ sub check_inodes {
 	}
 }
 
+sub oidbin_exists {
+	my ($self, $oidbin) = @_;
+	if (wantarray) {
+		my $sth = $self->dbh->prepare_cached(<<'', undef, 1);
+SELECT docid FROM xref3 WHERE oidbin = ? ORDER BY docid ASC
+
+		$sth->bind_param(1, $oidbin, SQL_BLOB);
+		$sth->execute;
+		my $tmp = $sth->fetchall_arrayref;
+		map { $_->[0] } @$tmp;
+	} else {
+		my $sth = $self->dbh->prepare_cached(<<'', undef, 1);
+SELECT COUNT(*) FROM xref3 WHERE oidbin = ?
+
+		$sth->bind_param(1, $oidbin, SQL_BLOB);
+		$sth->execute;
+		$sth->fetchrow_array;
+	}
+}
+
+sub blob_exists { oidbin_exists($_[0], pack('H*', $_[1])) }
+
+# used by NNTP.pm
+sub ids_after {
+	my ($self, $num) = @_;
+	my $ids = dbh($self)->selectcol_arrayref(<<'', undef, $$num);
+SELECT num FROM over WHERE num > ?
+ORDER BY num ASC LIMIT 1000
+
+	$$num = $ids->[-1] if @$ids;
+	$ids;
+}
+
 1;