sub new_file {
my ($class, $f, $writable) = @_;
+ return if !$writable && !-r $f;
my $dbh = dbh_new($f, $writable);
my $self = bless { dbh => $dbh }, $class;
}
# used by NNTP.pm
-sub id_batch {
- my ($self, $num, $cb) = @_;
+sub ids_after {
+ my ($self, $num) = @_;
+ my $ids = $self->{dbh}->selectcol_arrayref(<<'', undef, $$num);
+SELECT num FROM msgmap WHERE num > ?
+ORDER BY num ASC LIMIT 1000
+
+ $$num = $ids->[-1] if @$ids;
+ $ids;
+}
+
+sub msg_range {
+ my ($self, $beg, $end) = @_;
my $dbh = $self->{dbh};
- my $sth = $dbh->prepare('SELECT num FROM msgmap WHERE num > ? '.
- 'ORDER BY num ASC LIMIT 1000');
- $sth->execute($num);
- my $ary = $sth->fetchall_arrayref;
- @$ary = map { $_->[0] } @$ary;
- my $nr = scalar @$ary;
- $cb->($ary) if $nr;
- $nr;
+ my $attr = { Columns => [] };
+ my $mids = $dbh->selectall_arrayref(<<'', $attr, $$beg, $end);
+SELECT num,mid FROM msgmap WHERE num >= ? AND num <= ?
+ORDER BY num ASC
+
+ $$beg = $mids->[-1]->[0] + 1 if @$mids;
+ $mids
}
# only used for mapping external serial numbers (e.g. articles from gmane)