my ($self, $sql, $opts, @args) = @_;
my $dbh = $self->connect;
my $lim = (($opts->{limit} || 0) + 0) || 1000;
- my $off = (($opts->{offset} || 0) + 0) || 0;
$sql .= "LIMIT $lim";
- $sql .= " OFFSET $off" if $off > 0;
my $msgs = $dbh->selectall_arrayref($sql, { Slice => {} }, @args);
load_from_row($_) for @$msgs;
$msgs
sub nothing () { wantarray ? (0, []) : [] };
sub get_thread {
- my ($self, $mid, $opts) = @_;
+ my ($self, $mid, $prev) = @_;
my $dbh = $self->connect;
my $id = $dbh->selectrow_array(<<'', undef, $mid);
defined $tid or return nothing; # $sid may be undef
- my $cond = 'FROM over WHERE (tid = ? OR sid = ?) AND num > 0';
- my $msgs = do_get($self, <<"", $opts, $tid, $sid);
-SELECT * $cond ORDER BY ts ASC
+ $prev ||= 0;
+ my $cond = 'FROM over WHERE (tid = ? OR sid = ?) AND num > ?';
+ my $msgs = do_get($self, <<"", {}, $tid, $sid, $prev);
+SELECT * $cond ORDER BY num ASC
return $msgs unless wantarray;
- my $nr = $dbh->selectrow_array(<<"", undef, $tid, $sid);
+ my $nr = $dbh->selectrow_array(<<"", undef, $tid, $sid, $prev);
SELECT COUNT(num) $cond
($nr, $msgs);
undef;
}
+sub next_by_mid {
+ my ($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;