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package Koha::Filter::MARC::TrimFields; |
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# Copyright 2023 Koha Development team |
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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::TrimFields - Trims MARC::Record object data fields. |
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=head1 SYNOPSIS |
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my $p = Koha::RecordProcessor->new({ filters => ['TrimFields'] }); |
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my $metadata = Koha::Biblio::Metadatas->find($biblio_id); |
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my $record = $metadata->record; |
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$p->process($record); |
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=head1 DESCRIPTION |
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Filter to trim MARC::Record object data fields. |
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=cut |
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use Modern::Perl; |
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use base qw(Koha::RecordProcessor::Base); |
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our $NAME = 'TrimFields'; |
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=head2 filter |
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Trim MARC::Record object data fields. |
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=cut |
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sub filter { |
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my ( $self, $record ) = @_; |
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return |
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unless $record and ref($record) eq 'MARC::Record'; |
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foreach my $field ( $record->fields ) { |
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unless ( $field->is_control_field ) { |
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foreach my $subfield ( $field->subfields ) { |
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my $key = $subfield->[0]; |
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my $value = $subfield->[1]; |
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$value =~ s/[\n\r]+/ /g; |
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$value =~ s/^\s+|\s+$//g; |
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$field->add_subfields( $key => $value ); # add subfield to the end of the subfield list |
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$field->delete_subfield( pos => 0 ); # delete the subfield at the top of the subfield list |
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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; |