161 lines
4.4 KiB
Perl
161 lines
4.4 KiB
Perl
package C4::XISBN;
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# Copyright (C) 2007 LibLime
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# Joshua Ferraro <jmf@liblime.com>
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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 <https://www.gnu.org/licenses>.
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use Modern::Perl;
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use base 'Exporter';
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BEGIN {
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our @EXPORT_OK = qw(
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get_xisbns
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);
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}
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use XML::Simple;
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use C4::Biblio qw(TransformMarcToKoha);
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use C4::Koha qw( GetNormalizedISBN );
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use C4::Search qw( new_record_from_zebra );
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use C4::External::Syndetics qw( get_syndetics_editions );
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use LWP::UserAgent;
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use Koha::Biblios;
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use Koha::SearchEngine;
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use Koha::SearchEngine::Search;
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=head1 NAME
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C4::XISBN - Functions for retrieving XISBN content in Koha
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=head1 FUNCTIONS
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This module provides facilities for retrieving ThingISBN and XISBN content in Koha
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=cut
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sub _get_biblio_from_xisbn {
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my $xisbn = shift;
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my $searcher = Koha::SearchEngine::Search->new( { index => $Koha::SearchEngine::BIBLIOS_INDEX } );
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my ( $errors, $results, $total_hits ) = $searcher->simple_search_compat( "nb=$xisbn", 0, 1 );
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return unless ( !$errors && scalar @$results );
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my $record = C4::Search::new_record_from_zebra( 'biblioserver', $results->[0] );
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my $biblionumber = C4::Biblio::TransformMarcToKoha(
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{
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kohafields => ['biblio.biblionumber'],
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record => $record
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}
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)->{biblionumber};
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return unless $biblionumber;
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my $biblio = Koha::Biblios->find($biblionumber);
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return unless $biblio;
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my $isbn = $biblio->biblioitem->isbn;
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$biblio = $biblio->unblessed;
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$biblio->{normalized_isbn} = GetNormalizedISBN($isbn);
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return $biblio;
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}
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=head1 get_xisbns($isbn, $biblionumber);
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=head2 $isbn is an ISBN string
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=cut
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=head2 get_xisbns
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Missing POD for get_xisbns.
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=cut
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sub get_xisbns {
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my ( $isbn, $biblionumber ) = @_;
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my ( $response, $thing_response, $syndetics_response, $errors );
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# THINGISBN
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if ( C4::Context->preference('ThingISBN') ) {
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my $url = "http://www.librarything.com/api/thingISBN/" . $isbn;
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$thing_response = _get_url( $url, 'thingisbn' );
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}
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if ( C4::Context->preference("SyndeticsEnabled") && C4::Context->preference("SyndeticsEditions") ) {
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my $syndetics_preresponse = &get_syndetics_editions($isbn);
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my @syndetics_response;
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for my $response (@$syndetics_preresponse) {
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push @syndetics_response, { content => $response->{a} };
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}
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$syndetics_response = { isbn => \@syndetics_response };
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}
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$response->{isbn} = [ @{ $syndetics_response->{isbn} or [] }, @{ $thing_response->{isbn} or [] } ];
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my @xisbns;
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my $unique_xisbns; # a hashref
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# loop through each ISBN and scope to the local collection
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for my $response_data ( @{ $response->{isbn} } ) {
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next if $unique_xisbns->{ $response_data->{content} };
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$unique_xisbns->{ $response_data->{content} }++;
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my $xbiblio = _get_biblio_from_xisbn( $response_data->{content} );
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next unless $xbiblio;
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push @xisbns, $xbiblio if $xbiblio && $xbiblio->{biblionumber} ne $biblionumber;
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}
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if (wantarray) {
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return ( \@xisbns, $errors );
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} else {
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return \@xisbns;
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}
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}
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sub _get_url {
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my ( $url, $service_type ) = @_;
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my $ua = LWP::UserAgent->new( timeout => 2 );
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my $response = $ua->get($url);
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if ( $response->is_success ) {
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warn "WARNING could not retrieve $service_type $url" unless $response;
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if ($response) {
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my $xmlsimple = XML::Simple->new();
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my $content = $xmlsimple->XMLin(
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$response->content,
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ForceArray => [qw(isbn)],
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ForceContent => 1,
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);
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return $content;
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}
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} else {
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warn "WARNING: URL Request Failed " . $response->status_line . "\n";
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}
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}
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1;
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__END__
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=head1 NOTES
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=cut
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=head1 AUTHOR
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Joshua Ferraro <jmf@liblime.com>
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=cut
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