3 SELECT evergreen.upgrade_deps_block_check('0846', :eg_version);
5 CREATE OR REPLACE FUNCTION vandelay.add_field ( target_xml TEXT, source_xml TEXT, field TEXT, force_add INT ) RETURNS TEXT AS $_$
8 use MARC::File::XML (BinaryEncoding => 'UTF-8');
12 MARC::Charset->assume_unicode(1);
14 my $target_xml = shift;
15 my $source_xml = shift;
16 my $field_spec = shift;
17 my $force_add = shift || 0;
19 my $target_r = MARC::Record->new_from_xml( $target_xml );
20 my $source_r = MARC::Record->new_from_xml( $source_xml );
22 return $target_xml unless ($target_r && $source_r);
24 my @field_list = split(',', $field_spec);
27 for my $f (@field_list) {
28 $f =~ s/^\s*//; $f =~ s/\s*$//;
29 if ($f =~ /^(.{3})(\w*)(?:\[([^]]*)\])?$/) {
35 $match =~ s/^\s*//; $match =~ s/\s*$//;
36 $fields{$field} = { sf => [ split('', $sf) ] };
38 my ($msf,$mre) = split('~', $match);
39 if (length($msf) > 0 and length($mre) > 0) {
40 $msf =~ s/^\s*//; $msf =~ s/\s*$//;
41 $mre =~ s/^\s*//; $mre =~ s/\s*$//;
42 $fields{$field}{match} = { sf => $msf, re => qr/$mre/ };
48 for my $f ( keys %fields) {
49 if ( @{$fields{$f}{sf}} ) {
50 for my $from_field ($source_r->field( $f )) {
51 my @tos = $target_r->field( $f );
53 next if (exists($fields{$f}{match}) and !$force_add);
54 my @new_fields = map { $_->clone } $source_r->field( $f );
55 $target_r->insert_fields_ordered( @new_fields );
57 for my $to_field (@tos) {
58 if (exists($fields{$f}{match})) {
59 next unless (grep { $_ =~ $fields{$f}{match}{re} } $to_field->subfield($fields{$f}{match}{sf}));
61 for my $old_sf ($from_field->subfields) {
62 $to_field->add_subfields( @$old_sf ) if grep(/$$old_sf[0]/,@{$fields{$f}{sf}});
68 my @new_fields = map { $_->clone } $source_r->field( $f );
69 $target_r->insert_fields_ordered( @new_fields );
73 $target_xml = $target_r->as_xml_record;
74 $target_xml =~ s/^<\?.+?\?>$//mo;
75 $target_xml =~ s/\n//sgo;
76 $target_xml =~ s/>\s+</></sgo;