Bug 20434: Update UNIMARC framework - auth (TU)
[koha.git] / Koha / Authorities.pm
blobca150c4c8cd380a11e1eb135d4d6b7b6f3f5db21
1 package Koha::Authorities;
3 # Copyright 2015 Koha Development Team
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 3 of the License, or (at your option) any later
10 # version.
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
17 # with Koha; if not, write to the Free Software Foundation, Inc.,
18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 use Modern::Perl;
22 use Carp;
24 use Koha::Database;
26 use Koha::Authority;
28 use base qw(Koha::Objects);
30 =head1 NAME
32 Koha::Authorities - Koha Authority object set class
34 =head1 API
36 =head2 Class Methods
38 =head3 get_usage_count
40 $count = Koha::Authorities->get_usage_count({ authid => $i });
42 Returns the number of linked biblio records.
44 Note: Code originates from C4::AuthoritiesMarc::CountUsage.
46 This is a class method, since the authid may refer to a deleted record.
48 =cut
50 sub get_usage_count {
51 my ( $class, $params ) = @_;
52 my $authid = $params->{authid} || return;
54 my $searcher = Koha::SearchEngine::Search->new({ index => $Koha::SearchEngine::BIBLIOS_INDEX });
55 my ( $err, $result, $count ) = $searcher->simple_search_compat( 'an:' . $authid, 0, 0 );
56 if( $err ) {
57 warn "Error: $err from search for " . $authid;
58 return;
60 return $count;
63 =head3 linked_biblionumbers
65 my @biblios = Koha::Authorities->linked_biblionumbers({
66 authid => $id, [ max_results => $max ], [ offset => $offset ],
67 });
69 Returns array of biblionumbers, as extracted from the result records of
70 the search engine.
72 This is a class method, since the authid may refer to a deleted record.
74 =cut
76 sub linked_biblionumbers {
77 my ( $self, $params ) = @_;
78 my $authid = $params->{authid} || return;
80 my $searcher = Koha::SearchEngine::Search->new({ index => $Koha::SearchEngine::BIBLIOS_INDEX });
81 # if max_results is undefined, we will get all results
82 my ( $err, $result, $count ) = $searcher->simple_search_compat( 'an:' . $authid, $params->{offset} // 0, $params->{max_results} );
84 if( $err ) {
85 warn "Error: $err from search for " . $authid;
86 return;
89 my @biblionumbers;
90 foreach my $res ( @$result ) {
91 my $bibno = $searcher->extract_biblionumber( $res );
92 push @biblionumbers, $bibno if $bibno;
94 return @biblionumbers;
97 =head3 type
99 =cut
101 sub _type {
102 return 'AuthHeader';
105 =head3 object_class
107 =cut
109 sub object_class {
110 return 'Koha::Authority';