|
Line 0
Link Here
|
| 0 |
- |
1 |
package Koha::Filter::MARC::AuthorizedValues; |
|
|
2 |
|
| 3 |
# Copyright 2022 PTFS Europe |
| 4 |
# |
| 5 |
# This file is part of Koha. |
| 6 |
# |
| 7 |
# Koha is free software; you can redistribute it and/or modify it |
| 8 |
# under the terms of the GNU General Public License as published by |
| 9 |
# the Free Software Foundation; either version 3 of the License, or |
| 10 |
# (at your option) any later version. |
| 11 |
# |
| 12 |
# Koha is distributed in the hope that it will be useful, but |
| 13 |
# WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
# GNU General Public License for more details. |
| 16 |
# |
| 17 |
# You should have received a copy of the GNU General Public License |
| 18 |
# along with Koha; if not, see <http://www.gnu.org/licenses>. |
| 19 |
|
| 20 |
=head1 NAME |
| 21 |
|
| 22 |
Koha::Filter::MARC::AuthorizedValues - Replaces AV codes with descriptions in MARC::Record objects. |
| 23 |
|
| 24 |
=head1 SYNOPSIS |
| 25 |
|
| 26 |
my $biblio = Koha::Biblios->find( |
| 27 |
$biblio_id, |
| 28 |
{ prefetch => [ metadata ] } |
| 29 |
); |
| 30 |
|
| 31 |
my $record = $biblio->metadata->record; |
| 32 |
|
| 33 |
my $record_processor = Koha::RecordProcessor->new( |
| 34 |
{ |
| 35 |
filters => ['AuthorizedValues'], |
| 36 |
options => { |
| 37 |
interface => 'opac', |
| 38 |
} |
| 39 |
} |
| 40 |
); |
| 41 |
|
| 42 |
$record_processor->process($record); |
| 43 |
|
| 44 |
=head1 DESCRIPTION |
| 45 |
|
| 46 |
Filter to replace Koha AV codes in MARC::Records with their Koha AV descriptions. |
| 47 |
|
| 48 |
=cut |
| 49 |
|
| 50 |
use Modern::Perl; |
| 51 |
|
| 52 |
use C4::Biblio qw( GetAuthorisedValueDesc GetMarcStructure ); |
| 53 |
|
| 54 |
use base qw(Koha::RecordProcessor::Base); |
| 55 |
our $NAME = 'AuthorizedValues'; |
| 56 |
|
| 57 |
=head2 filter |
| 58 |
|
| 59 |
Embed items into the MARC::Record object. |
| 60 |
|
| 61 |
=cut |
| 62 |
|
| 63 |
sub filter { |
| 64 |
my $self = shift; |
| 65 |
my $record = shift; |
| 66 |
|
| 67 |
return unless defined $record and ref($record) eq 'MARC::Record'; |
| 68 |
|
| 69 |
my $params = $self->params; |
| 70 |
my $interface = $params->{options}->{interface} // 'opac'; |
| 71 |
my $frameworkcode = $params->{options}->{frameworkcode} // q{}; |
| 72 |
my $marcstructure = $params->{options}->{marcstructure} |
| 73 |
// GetMarcStructure( 1, $frameworkcode, { unsafe => 1 } ); |
| 74 |
|
| 75 |
my $marcflavour = C4::Context->preference('marcflavour'); |
| 76 |
my $av = _getAuthorisedValues4MARCSubfields($frameworkcode); |
| 77 |
foreach my $tag ( keys %$av ) { |
| 78 |
foreach my $field ( $record->field($tag) ) { |
| 79 |
if ( $av->{$tag} ) { |
| 80 |
my @new_subfields = (); |
| 81 |
for my $subfield ( $field->subfields() ) { |
| 82 |
my ( $letter, $value ) = @$subfield; |
| 83 |
# Replace the field value with the authorised value |
| 84 |
# *except* for MARC21 field 942$n (suppression in opac) |
| 85 |
if ( !( $tag eq '942' && $subfield->[0] eq 'n' ) |
| 86 |
|| $marcflavour eq 'UNIMARC' ) |
| 87 |
{ |
| 88 |
$value = |
| 89 |
GetAuthorisedValueDesc( $tag, $letter, $value, '', |
| 90 |
$tagslib, undef, $opac ) |
| 91 |
if $av->{$tag}->{$letter}; |
| 92 |
} |
| 93 |
push( @new_subfields, $letter, $value ); |
| 94 |
} |
| 95 |
$field->replace_with( |
| 96 |
MARC::Field->new( |
| 97 |
$tag, $field->indicator(1), |
| 98 |
$field->indicator(2), @new_subfields |
| 99 |
) |
| 100 |
); |
| 101 |
} |
| 102 |
} |
| 103 |
} |
| 104 |
|
| 105 |
return $record; |
| 106 |
} |
| 107 |
|
| 108 |
sub _getAuthorisedValues4MARCSubfields { |
| 109 |
my ($frameworkcode) = @_; |
| 110 |
unless ( $authval_per_framework{$frameworkcode} ) { |
| 111 |
my $dbh = C4::Context->dbh; |
| 112 |
my $sth = $dbh->prepare( |
| 113 |
"SELECT DISTINCT tagfield, tagsubfield |
| 114 |
FROM marc_subfield_structure |
| 115 |
WHERE authorised_value IS NOT NULL |
| 116 |
AND authorised_value!='' |
| 117 |
AND frameworkcode=?" |
| 118 |
); |
| 119 |
$sth->execute($frameworkcode); |
| 120 |
my $av = {}; |
| 121 |
while ( my ( $tag, $letter ) = $sth->fetchrow() ) { |
| 122 |
$av->{$tag}->{$letter} = 1; |
| 123 |
} |
| 124 |
$authval_per_framework{$frameworkcode} = $av; |
| 125 |
} |
| 126 |
return $authval_per_framework{$frameworkcode}; |
| 127 |
} |
| 128 |
|
| 129 |
1; |