2 # Copyright (C) 2007 LibLime
3 # Joshua Ferraro <jmf@liblime.com>
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along with
17 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
18 # Suite 330, Boston, MA 02111-1307 USA
26 use HTTP::Request::Common;
29 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
37 &get_biblio_from_xisbn
38 &get_biblionumber_from_isbn
42 sub get_biblionumber_from_isbn {
44 if ($isbn =~ /(\d{9,}[X]*)/) {
48 my $dbh=C4::Context->dbh;
49 my $query = "SELECT biblionumber FROM biblioitems WHERE isbn LIKE ? LIMIT 10";
50 my $sth = $dbh->prepare($query);
52 while ( my $biblionumber = $sth->fetchrow_hashref() ) {
53 push (@biblionumbers, $biblionumber);
55 return \@biblionumbers;
59 C4::XISBN - Functions for retrieving XISBN content in Koha
63 This module provides facilities for retrieving ThingISBN and XISBN content in Koha
67 sub get_biblio_from_xisbn {
69 $xisbn .='%' if ($xisbn =~ /(\d{9,}[X]*)/);
70 my $dbh = C4::Context->dbh;
71 my $query = "SELECT biblionumber FROM biblioitems WHERE isbn LIKE ?";
72 my $sth = $dbh->prepare($query);
73 $sth->execute($xisbn);
74 my $xbib_data = $sth->fetchrow_hashref();
76 if ($xbib_data->{biblionumber}) {
77 $xbiblio = GetBiblioData($xbib_data->{biblionumber});
78 $xbiblio->{isbn} =~ /(\d{9,}[X]*)/;
79 $xbiblio->{amazonisbn} = $1;
80 $xbiblio->{items} = GetItemsByBiblioitemnumber($xbib_data->{biblionumber});
85 =head1 get_xisbns($isbn);
87 =head2 $isbn is an ISBN string
93 my ($response,$thing_response,$xisbn_response,$gapines_response);
94 $isbn =~ /(\d{9,}[X]*)/;
97 if ( C4::Context->preference('ThingISBN') ) {
98 my $url = "http://www.librarything.com/api/thingISBN/".$isbn;
99 $thing_response = _get_url($url,'thingisbn');
103 if ( C4::Context->preference('XISBN') ) {
104 my $affiliate_id=C4::Context->preference('OCLCAffiliateID');
105 my $limit = C4::Context->preference('XISBNDailyLimit') || 499;
106 my $reached_limit = _service_throttle('xisbn',$limit);
107 my $url = "http://xisbn.worldcat.org/webservices/xid/isbn/".$isbn."?method=getEditions&format=xml&fl=form,year,lang,ed";
108 $url.="&ai=".$affiliate_id if $affiliate_id;
109 unless ($reached_limit) {
110 $xisbn_response = _get_url($url,'xisbn');
114 # PINES ISBN (Experimental)
115 #if ( C4::Context->preference('PINESISBN') ) {
116 # my $url = "http://www.librarything.com/api/thingISBN/".$isbn;
117 # $gapines_response = _get_url($url,'thingisbn');
119 $response->{isbn} = [ @{ $xisbn_response->{isbn} or [] }, @{ $thing_response->{isbn} or [] }, @{ $gapines_response->{isbn} or [] } ];
121 my $unique_xisbns; # a hashref
123 # loop through each ISBN and scope to the local collection
124 for my $response_data( @{ $response->{ isbn } } ) {
125 next if $response_data->{'content'} eq $isbn;
126 next if $isbn eq $response_data;
127 next if $unique_xisbns->{ $response_data->{content} };
128 $unique_xisbns->{ $response_data->{content} }++;
129 my $xbiblio= get_biblio_from_xisbn($response_data->{content});
130 push @xisbns, $xbiblio if $xbiblio; #response_data->{xbiblio}; #->{biblionumber}; # if $xbiblionumber;
136 my ($url,$service_type) = @_;
137 my $ua = LWP::UserAgent->new(
141 my $response = $ua->get($url);
142 if ($response->is_success) {
143 warn "WARNING could not retrieve $service_type $url" unless $response;
145 my $xmlsimple = XML::Simple->new();
146 my $content = $xmlsimple->XMLin(
148 ForceArray => [ qw(isbn) ],
154 warn "WARNING: URL Request Failed " . $response->status_line . "\n";
160 # Throttle services to the specified amount
161 sub _service_throttle {
162 my ($service_type,$daily_limit) = @_;
163 my $dbh = C4::Context->dbh;
164 my $sth = $dbh->prepare("SELECT service_count FROM services_throttle WHERE service_type=?");
165 $sth->execute($service_type);
168 while (my $counter = $sth->fetchrow_hashref()) {
169 $count = $counter->{service_count} if $counter->{service_count};
172 # we're over the limit
173 return 1 if $count >= $daily_limit;
177 $sth = $dbh->do("UPDATE services_throttle SET service_count=$count WHERE service_type='xisbn'");
188 Joshua Ferraro <jmf@liblime.com>