102 lines
2.7 KiB
Perl
102 lines
2.7 KiB
Perl
package Koha::Objects::Record::Collections;
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# Copyright 2023 Theke Solutions
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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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use MARC::File::MiJ;
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use MARC::File::USMARC;
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use MARC::File::XML;
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use MARC::Record;
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=head1 NAME
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Koha::Objects::Record::Collections - Generic records collection handling class
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=head1 SYNOPSIS
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use base qw(Koha::Objects Koha::Objects::Record::Collections);
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my $collections = Koha::Objects->print_collection($format);
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=head1 DESCRIPTION
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This class is provided as a generic way of handling a collection of records for Koha::Objects-based classes
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in Koha.
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This class must always be subclassed.
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=head1 API
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=head2 Class methods
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=cut
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=head3 print_collection
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my $collection_text = $result_set->print_collection($format)
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Return a text representation of a collection (group of records) in the specified format.
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Allowed formats are marcxml, mij, marc and txt. Defaults to marcxml.
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=cut
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sub print_collection {
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my ( $self, $format ) = @_;
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my ( $start, $glue, $end, @parts );
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my %serializers = (
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'mij' => \&MARC::File::MiJ::encode,
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'marc' => \&MARC::File::USMARC::encode,
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'txt' => \&MARC::Record::as_formatted,
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'marcxml' => \&MARC::File::XML::record
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);
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if ( $format eq 'mij' ) {
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$start = '[';
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$glue = ',';
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$end = ']';
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}
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elsif ( $format eq 'marc' ) {
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$glue = "\n";
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}
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elsif ( $format eq 'txt' ) {
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$glue = "\n\n";
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}
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else {
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$glue = '';
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$format = 'marcxml';
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$start = MARC::File::XML::header();
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$end = MARC::File::XML::footer();
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}
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while ( my $element = $self->next ) {
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my $schema = C4::Context->preference("marcflavour");
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if ($element->can('record_schema')) {
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$schema = $element->record_schema;
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}
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MARC::File::XML->default_record_format( $schema )
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if $format eq 'marcxml';
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push @parts, $serializers{$format}->( $element->record );
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}
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return
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( defined $start ? $start : '' )
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. join( $glue, @parts )
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. ( defined $end ? $end : '' );
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}
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1;
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