422 lines
13 KiB
Perl
422 lines
13 KiB
Perl
package Koha::Authority;
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# Copyright 2015 Koha Development Team
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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 Scalar::Util qw( blessed );
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use base qw(Koha::Object);
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use Koha::Authority::ControlledIndicators;
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use Koha::SearchEngine::Search;
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use C4::Heading qw( new_from_field );
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use C4::Charset qw( StripNonXmlChars );
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=head1 NAME
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Koha::Authority - Koha Authority Object class
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=head1 API
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=head2 Class methods
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=head3 get_usage_count
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$count = $self->get_usage_count;
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Returns the number of linked biblio records.
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=cut
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sub get_usage_count {
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my ($self) = @_;
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return Koha::Authorities->get_usage_count( { authid => $self->authid } );
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}
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=head3 linked_biblionumbers
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my @biblios = $self->linked_biblionumbers({
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[ max_results => $max ], [ offset => $offset ],
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});
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Returns an array of biblionumbers.
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=cut
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sub linked_biblionumbers {
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my ( $self, $params ) = @_;
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$params->{authid} = $self->authid;
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return Koha::Authorities->linked_biblionumbers($params);
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}
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=head3 heading_object
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Routine to return the C4::Heading object for this authority
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=cut
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sub heading_object {
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my ( $self, $params ) = @_;
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my $record = $params->{record};
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if ( !$self->{_report_tag} ) {
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my $authtype = Koha::Authority::Types->find( $self->authtypecode );
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return {} if !$authtype; # very exceptional
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$self->{_report_tag} = $authtype->auth_tag_to_report;
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}
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if ( !$record ) {
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$record = $self->record;
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}
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my $field = $record->field( $self->{_report_tag} );
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my $heading = C4::Heading->new_from_field( $field, undef, 1 ); #new auth heading
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return $heading;
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}
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=head3 controlled_indicators
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Some authority types control the indicators of some corresponding
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biblio fields (especially in MARC21).
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For example, if you have a PERSO_NAME authority (report tag 100), the
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first indicator of biblio field 600 directly comes from the authority,
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and the second indicator depends on thesaurus settings in the authority
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record. Use this method to obtain such controlled values. In this example
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you should pass 600 in the biblio_tag parameter.
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my $result = $self->controlled_indicators({
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record => $auth_marc, biblio_tag => $bib_tag
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});
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my $ind1 = $result->{ind1};
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my $ind2 = $result->{ind2};
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my $subfield_2 = $result->{sub2}; # Optional subfield 2 when ind==7
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If an indicator is not controlled, the result hash does not contain a key
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for its value. (Same for the sub2 key for an optional subfield $2.)
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Note: The record parameter is a temporary bypass in order to prevent
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needless conversion of $self->marcxml.
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=cut
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sub controlled_indicators {
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my ( $self, $params ) = @_;
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my $tag = $params->{biblio_tag} // q{};
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my $record = $params->{record};
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my $flavour =
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C4::Context->preference('marcflavour') eq 'UNIMARC'
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? 'UNIMARCAUTH'
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: 'MARC21';
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if ( !$record ) {
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$record = $self->record;
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}
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if ( !$self->{_report_tag} ) {
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my $authtype = Koha::Authority::Types->find( $self->authtypecode );
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return {} if !$authtype; # very exceptional
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$self->{_report_tag} = $authtype->auth_tag_to_report;
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}
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$self->{_ControlledInds} //= Koha::Authority::ControlledIndicators->new;
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return $self->{_ControlledInds}->get(
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{
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auth_record => $record,
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report_tag => $self->{_report_tag},
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biblio_tag => $tag,
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flavour => $flavour,
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}
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);
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}
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=head3 get_identifiers_and_information
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my $information = $author->get_identifiers_and_information;
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Return a list of information of the authors (syspref OPACAuthorIdentifiersAndInformation)
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=cut
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sub get_identifiers_and_information {
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my ($self) = @_;
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my $record = $self->record;
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# FIXME UNIMARC not supported yet.
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return if C4::Context->preference('marcflavour') eq 'UNIMARC';
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my $information;
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for my $info ( split ',', C4::Context->preference('OPACAuthorIdentifiersAndInformation') ) {
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if ( $info eq 'identifiers' ) {
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# identifiers (024$2$a)
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for my $field ( $record->field('024') ) {
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my $sf_2 = $field->subfield('2');
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my $sf_a = $field->subfield('a');
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next unless $sf_2 && $sf_a;
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push @{ $information->{identifiers} }, { source => $sf_2, number => $sf_a, };
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}
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} elsif ( $info eq 'activity' ) {
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# activity: Activity (372$a$s$t)
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for my $field ( $record->field('372') ) {
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my $sf_a = $field->subfield('a');
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my $sf_s = $field->subfield('s');
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my $sf_t = $field->subfield('t');
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push @{ $information->{activity} },
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{ field_of_activity => $sf_a, start_period => $sf_s, end_period => $sf_t, };
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}
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} elsif ( $info eq 'address' ) {
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# address: Address (371$a$b$d$e)
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for my $field ( $record->field('371') ) {
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my $sf_a = $field->subfield('a');
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my $sf_b = $field->subfield('b');
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my $sf_d = $field->subfield('d');
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my $sf_e = $field->subfield('e');
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push @{ $information->{address} },
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{ address => $sf_a, city => $sf_b, country => $sf_d, postal_code => $sf_e, };
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}
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} elsif ( $info eq 'associated_group' ) {
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# associated_group: Associated group (373$a$s$t$u$v$0)
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for my $field ( $record->field('373') ) {
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my $sf_a = $field->subfield('a');
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my $sf_s = $field->subfield('s');
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my $sf_t = $field->subfield('t');
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my $sf_u = $field->subfield('u');
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my $sf_v = $field->subfield('v');
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my $sf_0 = $field->subfield('0');
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push @{ $information->{associated_group} },
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{
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associated_group => $sf_a, start_period => $sf_s, end_period => $sf_t, uri => $sf_u,
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source_of_information => $sf_v, authority_record_number => $sf_0,
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};
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}
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} elsif ( $info eq 'email_address' ) {
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# email_address: Electronic mail address (371$m)
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for my $field ( $record->field('371') ) {
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my $sf_m = $field->subfield('m');
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push @{ $information->{email_address} }, { email_address => $sf_m, };
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}
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} elsif ( $info eq 'occupation' ) {
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# occupation: Occupation (374$a$s$t$u$v$0)
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for my $field ( $record->field('374') ) {
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my $sf_a = $field->subfield('a');
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my $sf_s = $field->subfield('s');
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my $sf_t = $field->subfield('t');
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my $sf_u = $field->subfield('u');
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my $sf_v = $field->subfield('v');
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my $sf_0 = $field->subfield('0');
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push @{ $information->{occupation} },
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{
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occupation => $sf_a, start_period => $sf_s, end_period => $sf_t, uri => $sf_u,
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source_of_information => $sf_v, authority_record_number => $sf_0,
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};
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}
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} elsif ( $info eq 'place_of_birth' ) {
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# place_of_birth: Place of birth (370$a)
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for my $field ( $record->field('370') ) {
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my $sf_a = $field->subfield('a');
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push @{ $information->{place_of_birth} }, { place_of_birth => $sf_a, };
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}
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} elsif ( $info eq 'place_of_death' ) {
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# place_of_death: Place of death (370$b)
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for my $field ( $record->field('370') ) {
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my $sf_b = $field->subfield('b');
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push @{ $information->{place_of_death} }, { place_of_death => $sf_b, };
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}
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} elsif ( $info eq 'uri' ) {
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# uri: URI (371$u)
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for my $field ( $record->field('371') ) {
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my $sf_u = $field->subfield('u');
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push @{ $information->{uri} }, { uri => $sf_u, };
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}
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}
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}
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return $information;
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}
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=head3 record
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my $record = $authority->record()
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Return the MARC::Record for this authority
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=cut
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sub record {
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my ($self) = @_;
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my $flavour = $self->record_schema;
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return MARC::Record->new_from_xml( $self->marcxml, 'UTF-8', $flavour );
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}
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=head3 record_schema
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my $schema = $biblio->record_schema();
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Returns the record schema (MARC21 or UNIMARCAUTH).
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=cut
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sub record_schema {
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my ($self) = @_;
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return C4::Context->preference('marcflavour') eq 'UNIMARC'
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? 'UNIMARCAUTH'
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: 'MARC21';
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}
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=head3 to_api_mapping
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This method returns the mapping for representing a Koha::Authority object
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on the API.
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=cut
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sub to_api_mapping {
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return {
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authid => 'authority_id',
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authtrees => undef,
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authtypecode => 'framework_id',
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datecreated => 'created_date',
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linkid => undef,
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marcxml => undef,
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modification_time => 'modified_date',
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origincode => undef,
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};
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}
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=head3 move_to_deleted
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$authority->move_to_deleted;
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This sub actually copies the authority (to be deleted) into the
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deletedauth_header table. (Just as the other ones.)
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=cut
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sub move_to_deleted {
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my ($self) = @_;
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my $data = $self->unblessed;
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delete $data->{modification_time}; # trigger new timestamp
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# Set leader 05 (deleted)
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my $format = C4::Context->preference('marcflavour') eq 'UNIMARC' ? 'UNIMARCAUTH' : 'MARC21';
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my $record = eval { $self->record };
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my $invalid_record = $@ || !$record;
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if ($invalid_record) {
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$record = $self->record_strip_nonxml;
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}
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# We don't do this for biblios, and deleted authorities aren't accessible outside the DB
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# not in OAI, export, REST, etc. so we should just use the marcxml if we cannot update it
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# i.e. it is more important to allow the deletion than to force this
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$record->leader( substr( $record->leader, 0, 5 ) . 'd' . substr( $record->leader, 6, 18 ) ) if $record;
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$data->{marcxml} = $record ? $record->as_xml_record($format) : $self->marcxml;
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return Koha::Database->new->schema->resultset('DeletedauthHeader')->create($data);
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}
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=head3 record_strip_nonxml
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my $record = $authority->record_strip_nonxml;
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This subroutine is intended for cases where we encounter a record that cannot be parsed, but want
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to make a good effort to present the record (for harvesting, deletion, editing) rather than throwing
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an exception
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Will return undef if the record cannot be built
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=cut
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sub record_strip_nonxml {
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my ( $self, $params ) = @_;
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$params //= {};
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my $record;
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my $marcxml_error;
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my $flavour = $self->record_schema;
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eval {
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$record = MARC::Record->new_from_xml(
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StripNonXmlChars( $self->marcxml ), 'UTF-8',
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$flavour
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);
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};
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if ($@) {
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$marcxml_error = $@;
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chomp $marcxml_error;
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warn $marcxml_error;
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return;
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}
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return $record;
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}
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=head2 Internal methods
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=head3 _unblessed_for_log
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Returns a plain hashref of authority column values that are independent of
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the attached MARC record, for use in action log diffing.
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Columns derived from MARC (C<heading>, C<authtrees>), the raw C<marcxml>
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blob, and system-managed timestamps (C<datecreated>, C<modification_time>)
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are omitted because they either duplicate MARC data already captured in
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the C<_marc> key of the log entry or add no diff signal. Only columns
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carrying independent Koha metadata are retained: C<authtypecode>,
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C<origincode>, and C<linkid>.
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=cut
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# auth_header columns that exist independently of the MARC record.
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my @_LOG_FIELDS = qw( authtypecode origincode linkid );
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sub _unblessed_for_log {
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my ($self) = @_;
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my $full = $self->unblessed;
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my %data;
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for my $key (@_LOG_FIELDS) {
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next unless exists $full->{$key} && defined $full->{$key};
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$data{$key} = blessed( $full->{$key} ) ? "$full->{$key}" : $full->{$key};
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}
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return \%data;
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}
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=head3 _type
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=cut
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sub _type {
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return 'AuthHeader';
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}
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1;
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