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package Koha::Filter::MARC::Index880InZebra; |
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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::Index880InZebra - replace 880 with its linked field number |
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so that the alternate graphic representation gets indexed appropriately |
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(see Koha::SearchEngine::Elasticsearch for the ES version) |
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=head1 SYNOPSIS |
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my $processor = Koha::RecordProcessor->new({ filters => ('Index880InZebra') }); |
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=head1 DESCRIPTION |
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Filter to rewrite 880 to linked field |
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=cut |
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use Modern::Perl; |
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use C4::Context; |
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use base qw(Koha::RecordProcessor::Base); |
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our $NAME = 'Index880InZebra'; |
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our $marcflavour = lc C4::Context->preference('marcflavour'); |
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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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=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, _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 = _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 $record = shift; |
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if ($marcflavour && $marcflavour eq 'marc21'){ |
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my @fields = $record->field('880'); |
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foreach my $field (@fields){ |
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my $sub6 = $field->subfield('6'); |
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if ($sub6 =~ /^(...)-\d+/) { |
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my $tag = $1; |
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if ($tag){ |
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$field->set_tag($tag); |
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} |
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} |
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} |
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} |
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return $record; |
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} |
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1; |