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897 lines
30 KiB
897 lines
30 KiB
package C4::Record;
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#
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# Copyright 2006 (C) LibLime
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# Parts copyright 2010 BibLibre
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# Part copyright 2015 Universidad de El Salvador
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use Modern::Perl;
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# please specify in which methods a given module is used
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use MARC::Record; # marc2marcxml, marcxml2marc, changeEncoding
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use MARC::File::XML; # marc2marcxml, marcxml2marc, changeEncoding
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use Biblio::EndnoteStyle;
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use Unicode::Normalize; # _entity_encode
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use C4::Biblio; #marc2bibtex
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use C4::Koha; #marc2csv
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use C4::XSLT ();
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use YAML; #marcrecords2csv
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use Template;
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use Text::CSV::Encoded; #marc2csv
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use Koha::Items;
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use Koha::SimpleMARC qw(read_field);
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use Koha::XSLT::Base;
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use Koha::CsvProfiles;
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use Koha::AuthorisedValues;
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use Carp;
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use vars qw(@ISA @EXPORT);
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@ISA = qw(Exporter);
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# only export API methods
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@EXPORT = qw(
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&marc2endnote
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&marc2marc
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&marc2marcxml
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&marcxml2marc
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&marc2dcxml
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&marc2modsxml
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&marc2madsxml
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&marc2bibtex
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&marc2csv
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&changeEncoding
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);
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=head1 NAME
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C4::Record - MARC, MARCXML, DC, MODS, XML, etc. Record Management Functions and API
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=head1 SYNOPSIS
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New in Koha 3.x. This module handles all record-related management functions.
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=head1 API (EXPORTED FUNCTIONS)
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=head2 marc2marc - Convert from one flavour of ISO-2709 to another
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my ($error,$newmarc) = marc2marc($marc,$to_flavour,$from_flavour,$encoding);
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Returns an ISO-2709 scalar
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=cut
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sub marc2marc {
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my ($marc,$to_flavour,$from_flavour,$encoding) = @_;
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my $error;
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if ($to_flavour && $to_flavour =~ m/marcstd/) {
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my $marc_record_obj;
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if ($marc =~ /^MARC::Record/) { # it's already a MARC::Record object
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$marc_record_obj = $marc;
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} else { # it's not a MARC::Record object, make it one
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eval { $marc_record_obj = MARC::Record->new_from_usmarc($marc) }; # handle exceptions
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# conversion to MARC::Record object failed, populate $error
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if ($@) { $error .="\nCreation of MARC::Record object failed: ".$MARC::File::ERROR };
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}
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unless ($error) {
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my @privatefields;
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foreach my $field ($marc_record_obj->fields()) {
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if ($field->tag() =~ m/9/ && ($field->tag() != '490' || C4::Context->preference("marcflavour") eq 'UNIMARC')) {
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push @privatefields, $field;
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} elsif (! ($field->is_control_field())) {
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$field->delete_subfield(code => '9') if ($field->subfield('9'));
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}
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}
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$marc_record_obj->delete_field($_) for @privatefields;
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$marc = $marc_record_obj->as_usmarc();
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}
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} else {
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$error = "Feature not yet implemented\n";
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}
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return ($error,$marc);
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}
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=head2 marc2marcxml - Convert from ISO-2709 to MARCXML
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my ($error,$marcxml) = marc2marcxml($marc,$encoding,$flavour);
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Returns a MARCXML scalar
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C<$marc> - an ISO-2709 scalar or MARC::Record object
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C<$encoding> - UTF-8 or MARC-8 [UTF-8]
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C<$flavour> - MARC21 or UNIMARC
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C<$dont_entity_encode> - a flag that instructs marc2marcxml not to entity encode the xml before returning (optional)
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=cut
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sub marc2marcxml {
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my ($marc,$encoding,$flavour,$dont_entity_encode) = @_;
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my $error; # the error string
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my $marcxml; # the final MARCXML scalar
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# test if it's already a MARC::Record object, if not, make it one
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my $marc_record_obj;
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if ($marc =~ /^MARC::Record/) { # it's already a MARC::Record object
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$marc_record_obj = $marc;
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} else { # it's not a MARC::Record object, make it one
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eval { $marc_record_obj = MARC::Record->new_from_usmarc($marc) }; # handle exceptions
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# conversion to MARC::Record object failed, populate $error
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if ($@) { $error .="\nCreation of MARC::Record object failed: ".$MARC::File::ERROR };
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}
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# only proceed if no errors so far
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unless ($error) {
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# check the record for warnings
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my @warnings = $marc_record_obj->warnings();
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if (@warnings) {
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warn "\nWarnings encountered while processing ISO-2709 record with title \"".$marc_record_obj->title()."\":\n";
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foreach my $warn (@warnings) { warn "\t".$warn };
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}
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unless($encoding) {$encoding = "UTF-8"}; # set default encoding
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unless($flavour) {$flavour = C4::Context->preference("marcflavour")}; # set default MARC flavour
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# attempt to convert the record to MARCXML
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eval { $marcxml = $marc_record_obj->as_xml_record($flavour) }; #handle exceptions
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# record creation failed, populate $error
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if ($@) {
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$error .= "Creation of MARCXML failed:".$MARC::File::ERROR;
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$error .= "Additional information:\n";
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my @warnings = $@->warnings();
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foreach my $warn (@warnings) { $error.=$warn."\n" };
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# record creation was successful
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} else {
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# check the record for warning flags again (warnings() will be cleared already if there was an error, see above block
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@warnings = $marc_record_obj->warnings();
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if (@warnings) {
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warn "\nWarnings encountered while processing ISO-2709 record with title \"".$marc_record_obj->title()."\":\n";
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foreach my $warn (@warnings) { warn "\t".$warn };
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}
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}
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# only proceed if no errors so far
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unless ($error) {
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# entity encode the XML unless instructed not to
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unless ($dont_entity_encode) {
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my ($marcxml_entity_encoded) = _entity_encode($marcxml);
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$marcxml = $marcxml_entity_encoded;
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}
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}
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}
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# return result to calling program
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return ($error,$marcxml);
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}
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=head2 marcxml2marc - Convert from MARCXML to ISO-2709
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my ($error,$marc) = marcxml2marc($marcxml,$encoding,$flavour);
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Returns an ISO-2709 scalar
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C<$marcxml> - a MARCXML record
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C<$encoding> - UTF-8 or MARC-8 [UTF-8]
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C<$flavour> - MARC21 or UNIMARC
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=cut
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sub marcxml2marc {
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my ($marcxml,$encoding,$flavour) = @_;
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my $error; # the error string
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my $marc; # the final ISO-2709 scalar
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unless($encoding) {$encoding = "UTF-8"}; # set the default encoding
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unless($flavour) {$flavour = C4::Context->preference("marcflavour")}; # set the default MARC flavour
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# attempt to do the conversion
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eval { $marc = MARC::Record->new_from_xml($marcxml,$encoding,$flavour) }; # handle exceptions
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# record creation failed, populate $error
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if ($@) {$error .="\nCreation of MARCXML Record failed: ".$@;
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$error.=$MARC::File::ERROR if ($MARC::File::ERROR);
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};
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# return result to calling program
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return ($error,$marc);
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}
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=head2 marc2dcxml - Convert from ISO-2709 to Dublin Core
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my dcxml = marc2dcxml ($marc, $xml, $biblionumber, $format);
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EXAMPLE
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my dcxml = marc2dcxml (undef, undef, 1, "oaidc");
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Convert MARC or MARCXML to Dublin Core metadata (XSLT Transformation),
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optionally can get an XML directly from biblio_metadata
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without item information. This method take into consideration the syspref
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'marcflavour' (UNIMARC, MARC21 and NORMARC).
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Return an XML file with the format defined in C<$format>
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C<$marc> - an ISO-2709 scalar or MARC::Record object
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C<$xml> - a MARCXML file
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C<$biblionumber> - biblionumber for database access
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C<$format> - accept three type of DC formats (oaidc, srwdc, and rdfdc )
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=cut
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sub marc2dcxml {
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my ( $marc, $xml, $biblionumber, $format ) = @_;
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# global variables
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my ( $marcxml, $record, $output );
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# set the default path for intranet xslts
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# differents xslts to process (OAIDC, SRWDC and RDFDC)
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my $xsl = C4::Context->config('intrahtdocs') . '/prog/en/xslt/' .
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C4::Context->preference('marcflavour') . 'slim2' . uc ( $format ) . '.xsl';
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if ( defined $marc ) {
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# no need to catch errors or warnings marc2marcxml do it instead
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$marcxml = C4::Record::marc2marcxml( $marc );
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} elsif ( not defined $xml and defined $biblionumber ) {
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# get MARCXML biblio directly without item information
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$marcxml = C4::Biblio::GetXmlBiblio( $biblionumber );
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} else {
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$marcxml = $xml;
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}
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# only proceed if MARC21 or UNIMARC; else clause is executed if marcflavour set it to NORMARC
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# generate MARC::Record object to see if not a marcxml record
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unless ( C4::Context->preference('marcflavour') eq 'NORMARC' ) {
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eval { $record = MARC::Record->new_from_xml(
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$marcxml,
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'UTF-8',
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C4::Context->preference('marcflavour')
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);
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};
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} else {
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eval { $record = MARC::Record->new_from_xml(
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$marcxml,
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'UTF-8',
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'MARC21'
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);
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};
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}
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# conversion to MARC::Record object failed
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if ( $@ ) {
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croak "Creation of MARC::Record object failed.";
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} elsif ( $record->warnings() ) {
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carp "Warnings encountered while processing ISO-2709 record.\n";
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my @warnings = $record->warnings();
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foreach my $warn (@warnings) {
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carp "\t". $warn;
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};
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} elsif ( $record =~ /^MARC::Record/ ) { # if OK makes xslt transformation
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my $xslt_engine = Koha::XSLT::Base->new;
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if ( $format =~ /^(dc|oaidc|srwdc|rdfdc)$/i ) {
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$output = $xslt_engine->transform( $marcxml, $xsl );
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} else {
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croak "The format argument ($format) not accepted.\n" .
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"Please pass a valid format (oaidc, srwdc, or rdfdc)\n";
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}
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my $err = $xslt_engine->err; # error code
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if ( $err ) {
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croak "Error $err while processing\n";
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} else {
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return $output;
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}
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}
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}
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=head2 marc2modsxml - Convert from ISO-2709 to MODS
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my $modsxml = marc2modsxml($marc);
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Returns a MODS scalar
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=cut
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sub marc2modsxml {
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my ($marc) = @_;
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return _transformWithStylesheet($marc, "/prog/en/xslt/MARC21slim2MODS3-1.xsl");
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}
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=head2 marc2madsxml - Convert from ISO-2709 to MADS
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my $madsxml = marc2madsxml($marc);
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Returns a MADS scalar
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=cut
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sub marc2madsxml {
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my ($marc) = @_;
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return _transformWithStylesheet($marc, "/prog/en/xslt/MARC21slim2MADS.xsl");
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}
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=head2 _transformWithStylesheet - Transform a MARC record with a stylesheet
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my $xml = _transformWithStylesheet($marc, $stylesheet)
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Returns the XML scalar result of the transformation. $stylesheet should
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contain the path to a stylesheet under intrahtdocs.
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=cut
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sub _transformWithStylesheet {
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my ($marc, $stylesheet) = @_;
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# grab the XML, run it through our stylesheet, push it out to the browser
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my $xmlrecord = marc2marcxml($marc);
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my $xslfile = C4::Context->config('intrahtdocs') . $stylesheet;
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return C4::XSLT::engine->transform($xmlrecord, $xslfile);
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}
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sub marc2endnote {
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my ($marc) = @_;
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my $marc_rec_obj = MARC::Record->new_from_usmarc($marc);
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my ( $abstract, $f260a, $f710a );
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my $f260 = $marc_rec_obj->field('260');
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if ($f260) {
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$f260a = $f260->subfield('a') if $f260;
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}
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my $f710 = $marc_rec_obj->field('710');
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if ($f710) {
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$f710a = $f710->subfield('a');
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}
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my $f500 = $marc_rec_obj->field('500');
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if ($f500) {
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$abstract = $f500->subfield('a');
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}
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my $fields = {
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DB => C4::Context->preference("LibraryName"),
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Title => $marc_rec_obj->title(),
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Author => $marc_rec_obj->author(),
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Publisher => $f710a,
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City => $f260a,
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Year => $marc_rec_obj->publication_date,
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Abstract => $abstract,
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};
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my $style = Biblio::EndnoteStyle->new();
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my $template;
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$template.= "DB - DB\n" if C4::Context->preference("LibraryName");
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$template.="T1 - Title\n" if $marc_rec_obj->title();
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$template.="A1 - Author\n" if $marc_rec_obj->author();
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$template.="PB - Publisher\n" if $f710a;
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$template.="CY - City\n" if $f260a;
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$template.="Y1 - Year\n" if $marc_rec_obj->publication_date;
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$template.="AB - Abstract\n" if $abstract;
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my ($text, $errmsg) = $style->format($template, $fields);
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return ($text);
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}
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=head2 marc2csv - Convert several records from UNIMARC to CSV
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my ($csv) = marc2csv($biblios, $csvprofileid, $itemnumbers);
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Pre and postprocessing can be done through a YAML file
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Returns a CSV scalar
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C<$biblio> - a list of biblionumbers
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C<$csvprofileid> - the id of the CSV profile to use for the export (see export_format.export_format_id)
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C<$itemnumbers> - a list of itemnumbers to export
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=cut
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sub marc2csv {
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my ($biblios, $id, $itemnumbers) = @_;
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$itemnumbers ||= [];
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my $output;
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my $csv = Text::CSV::Encoded->new();
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# Getting yaml file
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my $configfile = "../tools/csv-profiles/$id.yaml";
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my ($preprocess, $postprocess, $fieldprocessing);
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if (-e $configfile){
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($preprocess,$postprocess, $fieldprocessing) = YAML::LoadFile($configfile);
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}
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# Preprocessing
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eval $preprocess if ($preprocess); ## no critic (StringyEval)
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my $firstpass = 1;
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if ( @$itemnumbers ) {
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for my $itemnumber ( @$itemnumbers) {
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my $item = Koha::Items->find( $itemnumber );
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my $biblionumber = $item->biblio->biblionumber;
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$output .= marcrecord2csv( $biblionumber, $id, $firstpass, $csv, $fieldprocessing, [$itemnumber] ) // '';
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$firstpass = 0;
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}
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} else {
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foreach my $biblio (@$biblios) {
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$output .= marcrecord2csv( $biblio, $id, $firstpass, $csv, $fieldprocessing ) // '';
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$firstpass = 0;
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}
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}
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# Postprocessing
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eval $postprocess if ($postprocess); ## no critic (StringyEval)
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return $output;
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}
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=head2 marcrecord2csv - Convert a single record from UNIMARC to CSV
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my ($csv) = marcrecord2csv($biblio, $csvprofileid, $header);
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Returns a CSV scalar
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C<$biblio> - a biblionumber
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C<$csvprofileid> - the id of the CSV profile to use for the export (see export_format.export_format_id)
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C<$header> - true if the headers are to be printed (typically at first pass)
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C<$csv> - an already initialised Text::CSV object
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C<$fieldprocessing>
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C<$itemnumbers> a list of itemnumbers to export
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=cut
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sub marcrecord2csv {
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my ($biblio, $id, $header, $csv, $fieldprocessing, $itemnumbers) = @_;
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my $output;
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# Getting the record
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my $record = GetMarcBiblio({ biblionumber => $biblio });
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return unless $record;
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C4::Biblio::EmbedItemsInMarcBiblio({
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marc_record => $record,
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biblionumber => $biblio,
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item_numbers => $itemnumbers });
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# Getting the framework
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my $frameworkcode = GetFrameworkCode($biblio);
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# Getting information about the csv profile
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my $profile = Koha::CsvProfiles->find($id);
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# Getting output encoding
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my $encoding = $profile->encoding || 'utf8';
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# Getting separators
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my $csvseparator = $profile->csv_separator || ',';
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my $fieldseparator = $profile->field_separator || '#';
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my $subfieldseparator = $profile->subfield_separator || '|';
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# TODO: Be more generic (in case we have to handle other protected chars or more separators)
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if ($csvseparator eq '\t') { $csvseparator = "\t" }
|
|
if ($fieldseparator eq '\t') { $fieldseparator = "\t" }
|
|
if ($subfieldseparator eq '\t') { $subfieldseparator = "\t" }
|
|
if ($csvseparator eq '\n') { $csvseparator = "\n" }
|
|
if ($fieldseparator eq '\n') { $fieldseparator = "\n" }
|
|
if ($subfieldseparator eq '\n') { $subfieldseparator = "\n" }
|
|
|
|
$csv = $csv->encoding_out($encoding) ;
|
|
$csv->sep_char($csvseparator);
|
|
|
|
# Getting the marcfields
|
|
my $marcfieldslist = $profile->content;
|
|
|
|
# Getting the marcfields as an array
|
|
my @marcfieldsarray = split('\|', $marcfieldslist);
|
|
|
|
# Separating the marcfields from the user-supplied headers
|
|
my @csv_structures;
|
|
foreach (@marcfieldsarray) {
|
|
my @result = split('=', $_, 2);
|
|
my $content = ( @result == 2 )
|
|
? $result[1]
|
|
: $result[0];
|
|
my @fields;
|
|
while ( $content =~ m|(\d{3})\$?(.)?|g ) {
|
|
my $fieldtag = $1;
|
|
my $subfieldtag = $2;
|
|
push @fields, { fieldtag => $fieldtag, subfieldtag => $subfieldtag };
|
|
}
|
|
if ( @result == 2) {
|
|
push @csv_structures, { header => $result[0], content => $content, fields => \@fields };
|
|
} else {
|
|
push @csv_structures, { content => $content, fields => \@fields }
|
|
}
|
|
}
|
|
|
|
my ( @marcfieldsheaders, @csv_rows );
|
|
my $dbh = C4::Context->dbh;
|
|
|
|
my $field_list;
|
|
for my $field ( $record->fields ) {
|
|
my $fieldtag = $field->tag;
|
|
my $values;
|
|
if ( $field->is_control_field ) {
|
|
$values = $field->data();
|
|
} else {
|
|
$values->{indicator}{1} = $field->indicator(1);
|
|
$values->{indicator}{2} = $field->indicator(2);
|
|
for my $subfield ( $field->subfields ) {
|
|
my $subfieldtag = $subfield->[0];
|
|
my $value = $subfield->[1];
|
|
push @{ $values->{$subfieldtag} }, $value;
|
|
}
|
|
}
|
|
# We force the key as an integer (trick for 00X and OXX fields)
|
|
push @{ $field_list->{fields}{0+$fieldtag} }, $values;
|
|
}
|
|
|
|
# For each field or subfield
|
|
foreach my $csv_structure (@csv_structures) {
|
|
my @field_values;
|
|
my $tags = $csv_structure->{fields};
|
|
my $content = $csv_structure->{content};
|
|
|
|
if ( $header ) {
|
|
# If we have a user-supplied header, we use it
|
|
if ( exists $csv_structure->{header} ) {
|
|
push @marcfieldsheaders, $csv_structure->{header};
|
|
} else {
|
|
# If not, we get the matching tag name from koha
|
|
my $tag = $tags->[0];
|
|
if (defined $tag->{subfieldtag} ) {
|
|
my $query = "SELECT liblibrarian FROM marc_subfield_structure WHERE tagfield=? AND tagsubfield=?";
|
|
my @results = $dbh->selectrow_array( $query, {}, $tag->{fieldtag}, $tag->{subfieldtag} );
|
|
push @marcfieldsheaders, $results[0];
|
|
} else {
|
|
my $query = "SELECT liblibrarian FROM marc_tag_structure WHERE tagfield=?";
|
|
my @results = $dbh->selectrow_array( $query, {}, $tag->{fieldtag} );
|
|
push @marcfieldsheaders, $results[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
# TT tags exist
|
|
if ( $content =~ m|\[\%.*\%\]| ) {
|
|
my $tt = Template->new();
|
|
my $template = $content;
|
|
# Replace 00X and 0XX with X or XX
|
|
$content =~ s|fields.00(\d)|fields.$1|g;
|
|
$content =~ s|fields.0(\d{2})|fields.$1|g;
|
|
my $tt_output;
|
|
$tt->process( \$content, $field_list, \$tt_output );
|
|
push @csv_rows, $tt_output;
|
|
} else {
|
|
for my $tag ( @$tags ) {
|
|
my @fields = $record->field( $tag->{fieldtag} );
|
|
# If it is a subfield
|
|
my @loop_values;
|
|
if (defined $tag->{subfieldtag} ) {
|
|
my $av = Koha::AuthorisedValues->search_by_marc_field({ frameworkcode => $frameworkcode, tagfield => $tag->{fieldtag}, tagsubfield => $tag->{subfieldtag}, });
|
|
$av = $av->count ? $av->unblessed : [];
|
|
my $av_description_mapping = { map { ( $_->{authorised_value} => $_->{lib} ) } @$av };
|
|
# For each field
|
|
foreach my $field (@fields) {
|
|
my @subfields = $field->subfield( $tag->{subfieldtag} );
|
|
foreach my $subfield (@subfields) {
|
|
push @loop_values, (defined $av_description_mapping->{$subfield}) ? $av_description_mapping->{$subfield} : $subfield;
|
|
}
|
|
}
|
|
|
|
# Or a field
|
|
} else {
|
|
my $av = Koha::AuthorisedValues->search_by_marc_field({ frameworkcode => $frameworkcode, tagfield => $tag->{fieldtag}, });
|
|
$av = $av->count ? $av->unblessed : [];
|
|
my $authvalues = { map { ( $_->{authorised_value} => $_->{lib} ) } @$av };
|
|
|
|
foreach my $field ( @fields ) {
|
|
my $value;
|
|
|
|
# If it is a control field
|
|
if ($field->is_control_field) {
|
|
$value = defined $authvalues->{$field->as_string} ? $authvalues->{$field->as_string} : $field->as_string;
|
|
} else {
|
|
# If it is a field, we gather all subfields, joined by the subfield separator
|
|
my @subvaluesarray;
|
|
my @subfields = $field->subfields;
|
|
foreach my $subfield (@subfields) {
|
|
push (@subvaluesarray, defined $authvalues->{$subfield->[1]} ? $authvalues->{$subfield->[1]} : $subfield->[1]);
|
|
}
|
|
$value = join ($subfieldseparator, @subvaluesarray);
|
|
}
|
|
|
|
# Field processing
|
|
my $marcfield = $tag->{fieldtag}; # This line fixes a retrocompatibility concern
|
|
# The "processing" could be based on the $marcfield variable.
|
|
eval $fieldprocessing if ($fieldprocessing); ## no critic (StringyEval)
|
|
|
|
push @loop_values, $value;
|
|
}
|
|
|
|
}
|
|
push @field_values, {
|
|
fieldtag => $tag->{fieldtag},
|
|
subfieldtag => $tag->{subfieldtag},
|
|
values => \@loop_values,
|
|
};
|
|
}
|
|
for my $field_value ( @field_values ) {
|
|
if ( $field_value->{subfieldtag} ) {
|
|
push @csv_rows, join( $subfieldseparator, @{ $field_value->{values} } );
|
|
} else {
|
|
push @csv_rows, join( $fieldseparator, @{ $field_value->{values} } );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if ( $header ) {
|
|
$csv->combine(@marcfieldsheaders);
|
|
$output = $csv->string() . "\n";
|
|
}
|
|
$csv->combine(@csv_rows);
|
|
$output .= $csv->string() . "\n";
|
|
|
|
return $output;
|
|
|
|
}
|
|
|
|
|
|
=head2 changeEncoding - Change the encoding of a record
|
|
|
|
my ($error, $newrecord) = changeEncoding($record,$format,$flavour,$to_encoding,$from_encoding);
|
|
|
|
Changes the encoding of a record
|
|
|
|
C<$record> - the record itself can be in ISO-2709, a MARC::Record object, or MARCXML for now (required)
|
|
|
|
C<$format> - MARC or MARCXML (required)
|
|
|
|
C<$flavour> - MARC21 or UNIMARC, if MARC21, it will change the leader (optional) [defaults to Koha system preference]
|
|
|
|
C<$to_encoding> - the encoding you want the record to end up in (optional) [UTF-8]
|
|
|
|
C<$from_encoding> - the encoding the record is currently in (optional, it will probably be able to tell unless there's a problem with the record)
|
|
|
|
FIXME: the from_encoding doesn't work yet
|
|
|
|
FIXME: better handling for UNIMARC, it should allow management of 100 field
|
|
|
|
FIXME: shouldn't have to convert to and from xml/marc just to change encoding someone needs to re-write MARC::Record's 'encoding' method to actually alter the encoding rather than just changing the leader
|
|
|
|
=cut
|
|
|
|
sub changeEncoding {
|
|
my ($record,$format,$flavour,$to_encoding,$from_encoding) = @_;
|
|
my $newrecord;
|
|
my $error;
|
|
unless($flavour) {$flavour = C4::Context->preference("marcflavour")};
|
|
unless($to_encoding) {$to_encoding = "UTF-8"};
|
|
|
|
# ISO-2709 Record (MARC21 or UNIMARC)
|
|
if (lc($format) =~ /^marc$/o) {
|
|
# if we're converting encoding of an ISO2709 file, we need to roundtrip through XML
|
|
# because MARC::Record doesn't directly provide us with an encoding method
|
|
# It's definitely less than idea and should be fixed eventually - kados
|
|
my $marcxml; # temporary storage of MARCXML scalar
|
|
($error,$marcxml) = marc2marcxml($record,$to_encoding,$flavour);
|
|
unless ($error) {
|
|
($error,$newrecord) = marcxml2marc($marcxml,$to_encoding,$flavour);
|
|
}
|
|
|
|
# MARCXML Record
|
|
} elsif (lc($format) =~ /^marcxml$/o) { # MARCXML Record
|
|
my $marc;
|
|
($error,$marc) = marcxml2marc($record,$to_encoding,$flavour);
|
|
unless ($error) {
|
|
($error,$newrecord) = marc2marcxml($record,$to_encoding,$flavour);
|
|
}
|
|
} else {
|
|
$error.="Unsupported record format:".$format;
|
|
}
|
|
return ($error,$newrecord);
|
|
}
|
|
|
|
=head2 marc2bibtex - Convert from MARC21 and UNIMARC to BibTex
|
|
|
|
my ($bibtex) = marc2bibtex($record, $id);
|
|
|
|
Returns a BibTex scalar
|
|
|
|
C<$record> - a MARC::Record object
|
|
|
|
C<$id> - an id for the BibTex record (might be the biblionumber)
|
|
|
|
=cut
|
|
|
|
|
|
sub marc2bibtex {
|
|
my ($record, $id) = @_;
|
|
my $tex;
|
|
my $marcflavour = C4::Context->preference("marcflavour");
|
|
|
|
# Authors
|
|
my $author;
|
|
my @texauthors;
|
|
my @authorFields = ('100','110','111','700','710','711');
|
|
@authorFields = ('700','701','702','710','711','721') if ( $marcflavour eq "UNIMARC" );
|
|
|
|
foreach my $field ( @authorFields ) {
|
|
# author formatted surname, firstname
|
|
my $texauthor = '';
|
|
if ( $marcflavour eq "UNIMARC" ) {
|
|
$texauthor = join ', ',
|
|
( $record->subfield($field,"a"), $record->subfield($field,"b") );
|
|
} else {
|
|
$texauthor = $record->subfield($field,"a");
|
|
}
|
|
push @texauthors, $texauthor if $texauthor;
|
|
}
|
|
$author = join ' and ', @texauthors;
|
|
|
|
# Defining the conversion array according to the marcflavour
|
|
my @bh;
|
|
if ( $marcflavour eq "UNIMARC" ) {
|
|
|
|
# FIXME, TODO : handle repeatable fields
|
|
# TODO : handle more types of documents
|
|
|
|
# Unimarc to bibtex array
|
|
@bh = (
|
|
|
|
# Mandatory
|
|
author => $author,
|
|
title => $record->subfield("200", "a") || "",
|
|
editor => $record->subfield("210", "g") || "",
|
|
publisher => $record->subfield("210", "c") || "",
|
|
year => $record->subfield("210", "d") || $record->subfield("210", "h") || "",
|
|
|
|
# Optional
|
|
volume => $record->subfield("200", "v") || "",
|
|
series => $record->subfield("225", "a") || "",
|
|
address => $record->subfield("210", "a") || "",
|
|
edition => $record->subfield("205", "a") || "",
|
|
note => $record->subfield("300", "a") || "",
|
|
url => $record->subfield("856", "u") || ""
|
|
);
|
|
} else {
|
|
|
|
# Marc21 to bibtex array
|
|
@bh = (
|
|
|
|
# Mandatory
|
|
author => $author,
|
|
title => $record->subfield("245", "a") || "",
|
|
editor => $record->subfield("260", "f") || "",
|
|
publisher => $record->subfield("264", "b") || $record->subfield("260", "b") || "",
|
|
year => $record->subfield("264", "c") || $record->subfield("260", "c") || $record->subfield("260", "g") || "",
|
|
|
|
# Optional
|
|
# unimarc to marc21 specification says not to convert 200$v to marc21
|
|
series => $record->subfield("490", "a") || "",
|
|
address => $record->subfield("264", "a") || $record->subfield("260", "a") || "",
|
|
edition => $record->subfield("250", "a") || "",
|
|
note => $record->subfield("500", "a") || "",
|
|
url => $record->subfield("856", "u") || ""
|
|
);
|
|
}
|
|
|
|
my $BibtexExportAdditionalFields = C4::Context->preference('BibtexExportAdditionalFields');
|
|
my $additional_fields;
|
|
if ($BibtexExportAdditionalFields) {
|
|
$BibtexExportAdditionalFields = "$BibtexExportAdditionalFields\n\n";
|
|
$additional_fields = eval { YAML::Load($BibtexExportAdditionalFields); };
|
|
if ($@) {
|
|
warn "Unable to parse BibtexExportAdditionalFields : $@";
|
|
$additional_fields = undef;
|
|
}
|
|
}
|
|
|
|
if ( $additional_fields && $additional_fields->{'@'} ) {
|
|
my ( $f, $sf ) = split( /\$/, $additional_fields->{'@'} );
|
|
my ( $type ) = read_field( { record => $record, field => $f, subfield => $sf, field_numbers => [1] } );
|
|
|
|
if ($type) {
|
|
$tex .= '@' . $type . '{';
|
|
}
|
|
else {
|
|
$tex .= "\@book{";
|
|
}
|
|
}
|
|
else {
|
|
$tex .= "\@book{";
|
|
}
|
|
|
|
my @elt;
|
|
for ( my $i = 0 ; $i < scalar( @bh ) ; $i = $i + 2 ) {
|
|
next unless $bh[$i+1];
|
|
push @elt, qq|\t$bh[$i] = {$bh[$i+1]}|;
|
|
}
|
|
$tex .= join(",\n", $id, @elt);
|
|
|
|
if ($additional_fields) {
|
|
$tex .= ",\n";
|
|
foreach my $bibtex_tag ( keys %$additional_fields ) {
|
|
next if $bibtex_tag eq '@';
|
|
|
|
my @fields =
|
|
ref( $additional_fields->{$bibtex_tag} ) eq 'ARRAY'
|
|
? @{ $additional_fields->{$bibtex_tag} }
|
|
: $additional_fields->{$bibtex_tag};
|
|
|
|
for my $tag (@fields) {
|
|
my ( $f, $sf ) = split( /\$/, $tag );
|
|
my @values = read_field( { record => $record, field => $f, subfield => $sf } );
|
|
foreach my $v (@values) {
|
|
$tex .= qq(\t$bibtex_tag = {$v}\n);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
$tex .= "\n";
|
|
}
|
|
|
|
$tex .= "}\n";
|
|
|
|
return $tex;
|
|
}
|
|
|
|
|
|
=head1 INTERNAL FUNCTIONS
|
|
|
|
=head2 _entity_encode - Entity-encode an array of strings
|
|
|
|
my ($entity_encoded_string) = _entity_encode($string);
|
|
|
|
or
|
|
|
|
my (@entity_encoded_strings) = _entity_encode(@strings);
|
|
|
|
Entity-encode an array of strings
|
|
|
|
=cut
|
|
|
|
sub _entity_encode {
|
|
my @strings = @_;
|
|
my @strings_entity_encoded;
|
|
foreach my $string (@strings) {
|
|
my $nfc_string = NFC($string);
|
|
$nfc_string =~ s/([\x{0080}-\x{fffd}])/sprintf('&#x%X;',ord($1))/sgoe;
|
|
push @strings_entity_encoded, $nfc_string;
|
|
}
|
|
return @strings_entity_encoded;
|
|
}
|
|
|
|
END { } # module clean-up code here (global destructor)
|
|
1;
|
|
__END__
|
|
|
|
=head1 AUTHOR
|
|
|
|
Joshua Ferraro <jmf@liblime.com>
|
|
|
|
=head1 MODIFICATIONS
|
|
|
|
|
|
=cut
|
|
|