+=head2 GetItemnumbersForBiblio
+
+ my $itemnumbers = GetItemnumbersForBiblio($biblionumber);
+
+Given a single biblionumber, return an arrayref of all the corresponding itemnumbers
+
+=cut
+
+sub GetItemnumbersForBiblio {
+ my $biblionumber = shift;
+ my @items;
+ my $dbh = C4::Context->dbh;
+ my $sth = $dbh->prepare("SELECT itemnumber FROM items WHERE biblionumber = ?");
+ $sth->execute($biblionumber);
+ while (my $result = $sth->fetchrow_hashref) {
+ push @items, $result->{'itemnumber'};
+ }
+ return \@items;
+}
+