Nick Clemens
ea88cfb3ab
We use match_count to determine if a new authority record should be created, however, we were not adding this count to the cache, so if a record returned too many matches on first lookup, we would create a new record on the second lookup To test: 1 - Set Linker Module to 'Default' 2 - Enable AutoCreateAuthorities and BiblioAddsAuthorities and CatalogModuleRelink and LinkerRelink 3 - Add two copies of a single authority via Z39 4 - Add two headings for that authority to a bib record (e.g. a 610 and 710) 5 - Save the record and note a new authority is generated 6 - Repeat and see another is generated 7 - Apply patch 8 - Restart all the things 9 - Save the record again, no new authority created Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org> Signed-off-by: Joonas Kylmälä <joonas.kylmala@iki.fi> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
113 lines
3.7 KiB
Perl
113 lines
3.7 KiB
Perl
package C4::Linker::Default;
|
|
|
|
# Copyright 2011 C & P Bibliography Services
|
|
#
|
|
# 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>.
|
|
|
|
use strict;
|
|
use warnings;
|
|
use MARC::Field;
|
|
use C4::Heading;
|
|
|
|
use base qw(C4::Linker);
|
|
|
|
sub get_link {
|
|
my $self = shift;
|
|
my $heading = shift;
|
|
my $behavior = shift || 'default';
|
|
my $search_form = $heading->search_form();
|
|
my $auth_type = $heading->auth_type();
|
|
my $authid;
|
|
my $fuzzy = 0;
|
|
my $match_count;
|
|
|
|
if ( $self->{'cache'}->{$search_form.$auth_type}->{'cached'} ) {
|
|
$authid = $self->{'cache'}->{$search_form.$auth_type}->{'authid'};
|
|
$fuzzy = $self->{'cache'}->{$search_form.$auth_type}->{'fuzzy'};
|
|
$match_count = $self->{'cache'}->{$search_form.$auth_type}->{'match_count'};
|
|
}
|
|
else {
|
|
|
|
# look for matching authorities
|
|
my $authorities = $heading->authorities(1); # $skipmetadata = true
|
|
$match_count = scalar @$authorities;
|
|
|
|
if ( $behavior eq 'default' && $#{$authorities} == 0 ) {
|
|
$authid = $authorities->[0]->{'authid'};
|
|
}
|
|
elsif ( $behavior eq 'first' && $#{$authorities} >= 0 ) {
|
|
$authid = $authorities->[0]->{'authid'};
|
|
$fuzzy = $#{$authorities} > 0;
|
|
}
|
|
elsif ( $behavior eq 'last' && $#{$authorities} >= 0 ) {
|
|
$authid = $authorities->[ $#{$authorities} ]->{'authid'};
|
|
$fuzzy = $#{$authorities} > 0;
|
|
}
|
|
|
|
if ( !defined $authid && $self->{'broader_headings'} ) {
|
|
my $field = $heading->field();
|
|
my @subfields = grep { $_->[0] ne '9' } $field->subfields();
|
|
if ( scalar @subfields > 1 ) {
|
|
pop @subfields;
|
|
$field =
|
|
MARC::Field->new(
|
|
$field->tag,
|
|
$field->indicator(1),
|
|
$field->indicator(2),
|
|
map { $_->[0] => $_->[1] } @subfields
|
|
);
|
|
( $authid, $fuzzy ) =
|
|
$self->get_link( C4::Heading->new_from_field($field),
|
|
$behavior );
|
|
}
|
|
}
|
|
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'cached'} = 1;
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'authid'} = $authid;
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'fuzzy'} = $fuzzy;
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'match_count'} = $match_count;
|
|
}
|
|
return $self->SUPER::_handle_auth_limit($authid), $fuzzy, $match_count;
|
|
}
|
|
|
|
sub update_cache {
|
|
my $self = shift;
|
|
my $heading = shift;
|
|
my $authid = shift;
|
|
my $search_form = $heading->search_form();
|
|
my $auth_type = $heading->auth_type();
|
|
my $fuzzy = 0;
|
|
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'cached'} = 1;
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'authid'} = $authid;
|
|
$self->{'cache'}->{$search_form.$auth_type}->{'fuzzy'} = $fuzzy;
|
|
}
|
|
|
|
sub flip_heading {
|
|
my $self = shift;
|
|
my $heading = shift;
|
|
|
|
# TODO: implement
|
|
}
|
|
|
|
1;
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
C4::Linker::Default - match only if there is a single matching auth
|
|
|
|
=cut
|