4 INSERT INTO config.upgrade_log (version) VALUES ('0435'); -- miker
6 CREATE OR REPLACE FUNCTION vandelay.add_field ( target_xml TEXT, source_xml TEXT, field TEXT ) RETURNS TEXT AS $_$
9 use MARC::File::XML (BinaryEncoding => 'UTF-8');
12 my $target_xml = shift;
13 my $source_xml = shift;
14 my $field_spec = shift;
16 my $target_r = MARC::Record->new_from_xml( $target_xml );
17 my $source_r = MARC::Record->new_from_xml( $source_xml );
19 return $target_xml unless ($target_r && $source_r);
21 my @field_list = split(',', $field_spec);
24 for my $f (@field_list) {
25 $f =~ s/^\s*//; $f =~ s/\s*$//;
26 if ($f =~ /^(.{3})(\w*)(?:\[([^]]*)\])?$/) {
32 $match =~ s/^\s*//; $match =~ s/\s*$//;
33 $fields{$field} = { sf => [ split('', $sf) ] };
35 my ($msf,$mre) = split('~', $match);
36 if (length($msf) > 0 and length($mre) > 0) {
37 $msf =~ s/^\s*//; $msf =~ s/\s*$//;
38 $mre =~ s/^\s*//; $mre =~ s/\s*$//;
39 $fields{$field}{match} = { sf => $msf, re => qr/$mre/ };
45 for my $f ( keys %fields) {
46 if ( @{$fields{$f}{sf}} ) {
47 for my $from_field ($source_r->field( $f )) {
48 my @tos = $target_r->field( $f );
50 my @new_fields = map { $_->clone } $source_r->field( $f );
51 $target_r->insert_fields_ordered( @new_fields );
53 for my $to_field (@tos) {
54 if (exists($fields{$f}{match})) {
55 next unless (grep { $_ =~ $fields{$f}{match}{re} } $to_field->subfield($fields{$f}{match}{sf}));
57 my @new_sf = map { ($_ => $from_field->subfield($_)) } @{$fields{$f}{sf}};
58 $to_field->add_subfields( @new_sf );
63 my @new_fields = map { $_->clone } $source_r->field( $f );
64 $target_r->insert_fields_ordered( @new_fields );
68 $target_xml = $target_r->as_xml_record;
69 $target_xml =~ s/^<\?.+?\?>$//mo;
70 $target_xml =~ s/\n//sgo;
71 $target_xml =~ s/>\s+</></sgo;