Koha-clms/Koha/Biblio/Metadata/Extractor/MARC.pm

106 lines
2.5 KiB
Perl

package Koha::Biblio::Metadata::Extractor::MARC;
# Copyright Koha Development Team 2023
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
=head1 NAME
Koha::Biblio::Metadata::Extractor::MARC - Extract specific metadata from MARC::Record objects
=cut
use Modern::Perl;
use Koha::Exceptions;
=head1 API
=head2 Class methods
=head3 new
my $extractor = Koha::Biblio::Metadata::Extractor::MARC->new({ biblio => $biblio });
Constructor for the I<Koha::Biblio::Metadata::Extractor::MARC> class.
=cut
sub new {
my ( $class, $params ) = @_;
Koha::Exceptions::MissingParameter->throw( parameter => 'metadata' )
unless $params->{metadata} || $params->{biblio};
#my $metadata = $biblio->metadata;
#my $schema = $metadata->schema;
# Get the schema from the pref so that we do not fetch the biblio_metadata
my $schema = C4::Context->preference('marcflavour');
my $valid_schemas = { 'MARC21' => 1, 'UNIMARC' => 1 };
Koha::Exceptions::WrongParameter->throw( name => 'schema', value => $schema )
unless $valid_schemas->{$schema};
my $sub_class = "Koha::Biblio::Metadata::Extractor::MARC::$schema";
require "Koha/Biblio/Metadata/Extractor/MARC/$schema.pm";
return $sub_class->new($params);
}
=head3 metadata
my $metadata = $marc_extractor->metadata;
Return a MARC record.
=cut
sub metadata {
my ($self) = @_;
if ( $self->{biblio} ) {
$self->{metadata} ||= $self->{biblio}->metadata->record;
}
return $self->{metadata};
}
=head3 _normalize_string
my $normalized_string = $self->_normalize_string($string);
Returns a normalized string (remove dashes)
=cut
sub _normalize_string {
my ( $self, $string ) = @_;
( my $normalized_string ) = $string =~ /([\d-]*[X]*)/;
$normalized_string =~ s/-//g;
return $normalized_string;
}
=head1 AUTHOR
Tomas Cohen Arazi, E<lt>tomascohen@theke.ioE<gt>
Jonathan Druart, E<lt>jonathan.druart@bugs.koha-community.orgE<gt>
=cut
1;
__END__