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package Koha::Filter::MARC::EmbedRecordSource; |
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# Copyright 2024 BibLibre |
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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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=head1 NAME |
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Koha::Filter::MARC::EmbedRecordSource - embeds record source into MARC for indexing |
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=head1 SYNOPSIS |
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=head1 DESCRIPTION |
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Filter to embed record source into MARC records. |
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=cut |
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use strict; |
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use warnings; |
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use Koha::Biblios; |
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use base qw(Koha::RecordProcessor::Base); |
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our $NAME = 'EmbedRecordSource'; |
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=head2 filter |
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my $newrecord = $filter->filter($record); |
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my $newrecords = $filter->filter(\@records); |
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Embed see from headings into the specified record(s) and return the result. |
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In order to differentiate added headings from actual headings, a 'z' is |
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put in the first indicator. |
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=cut |
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sub filter { |
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my $self = shift; |
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my $record = shift; |
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my $newrecord; |
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return unless defined $record; |
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if (ref $record eq 'ARRAY') { |
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my @recarray; |
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foreach my $thisrec (@$record) { |
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push @recarray, $self->_processrecord($thisrec); |
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} |
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$newrecord = \@recarray; |
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} elsif (ref $record eq 'MARC::Record') { |
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$newrecord = $self->_processrecord($record); |
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} |
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return $newrecord; |
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} |
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sub _processrecord { |
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my ($self, $record) = @_; |
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$record->append_fields($self->fields($record)); |
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return $record; |
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} |
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=head2 fields |
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my @fields = $filter->fields($record); |
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Retrieve the fields that would be embedded if the record were processed by the filter. |
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Used during Elasticsearch indexing to give special treatment to these field (i.e. don't |
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include in facets, sorting, or suggestion fields) |
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=cut |
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sub fields { |
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my ($self, $record) = @_; |
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my @newfield; |
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my $biblionumber = $record->field('999')->subfield('c'); |
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return @newfield unless $biblionumber; |
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my $biblio = Koha::Biblios->find($biblionumber); |
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return @newfield unless $biblio; |
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my $source = $biblio->metadata->record_source; |
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return @newfield unless $source; |
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my $marc_source = MARC::Field->new('942', 'z', ' ', 'z' => $source->name ); |
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push @newfield, $marc_source if (scalar($marc_source->subfields()) > 0); |
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return @newfield; |
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} |
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1; |