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package Koha::Authority::ControlledIndicators; |
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# Copyright 2018 Rijksmuseum |
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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 under the |
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# terms of the GNU General Public License as published by the Free Software |
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# Foundation; either version 3 of the License, or (at your option) any later |
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# version. |
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# |
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY |
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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# A PARTICULAR PURPOSE. See the 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 along |
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# with Koha; if not, write to the Free Software Foundation, Inc., |
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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|
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use Modern::Perl; |
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use C4::Context; |
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our $cached_indicators; |
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=head1 NAME |
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Koha::Authority::ControlledIndicators - Obtain biblio indicators, controlled by authority record |
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=head1 API |
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=head2 METHODS |
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=head3 new |
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Instantiate new object. |
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=cut |
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sub new { |
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my ( $class, $params ) = @_; |
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$params = {} if ref($params) ne 'HASH'; |
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$cached_indicators = undef; |
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return bless $params, $class; |
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} |
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=head3 get |
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Obtain biblio indicators for given authority record and biblio field tag |
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$self->get({ |
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auth_record => $record, |
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report_tag => $authtype->auth_tag_to_report, |
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biblio_tag => $tag, |
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flavour => $flavour, |
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}); |
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=cut |
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sub get { |
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my ( $self, $params ) = @_; |
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my $flavour = $params->{flavour} // q{}; |
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my $tag = $params->{biblio_tag} // q{}; |
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my $record = $params->{auth_record}; |
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my $report_tag = $params->{report_tag} // q{}; |
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$flavour = uc($flavour); |
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$flavour = 'UNIMARC' if $flavour eq 'UNIMARCAUTH'; |
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$cached_indicators //= _load_pref(); |
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my $result = {}; |
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return $result if !exists $cached_indicators->{$flavour}; |
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my $rule = $cached_indicators->{$flavour}->{$tag} // |
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$cached_indicators->{$flavour}->{'*'} // |
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{}; |
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my $report_fld = $record ? $record->field( $report_tag ) : undef; |
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foreach my $ind ( 'ind1', 'ind2' ) { |
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if( exists $rule->{$ind} ) { |
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if( !$rule->{$ind} ) { |
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$result->{$ind} = $rule->{$ind}; # undef or empty string |
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} elsif( $rule->{$ind} eq 'auth1' ) { |
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$result->{$ind} = $report_fld->indicator(1) if $report_fld; |
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} elsif( $rule->{$ind} eq 'auth2' ) { |
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$result->{$ind} = $report_fld->indicator(2) if $report_fld; |
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} elsif( $rule->{$ind} eq 'thesaurus' ) { |
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} else { |
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$result->{$ind} = substr( $rule->{$ind}, 0, 1); |
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} |
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} |
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} |
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return $result; |
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} |
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sub _load_pref { |
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my $pref = C4::Context->preference('AuthorityControlledIndicators') // q{}; |
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my @lines = split /\r?\n/, $pref; |
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my $res = {}; |
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foreach my $line (@lines) { |
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$line =~ s/^\s*|\s*$//g; |
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next if $line =~ /^#/; |
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# line should be of the form: marcflavour,fld,ind1:val,ind2:val |
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my @temp = split /\s*,\s*/, $line; |
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next if @temp < 3; |
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my $flavour = uc($temp[0]); |
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$flavour = 'UNIMARC' if $flavour eq 'UNIMARCAUTH'; |
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next if $temp[1] !~ /(\d{3}|\*)/; |
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my $tag = $1; |
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if( $temp[2] =~ /ind1\s*:\s*(.*)/ ) { |
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$res->{$flavour}->{$tag}->{ind1} = $1; |
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} |
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if( $temp[3] && $temp[3] =~ /ind2\s*:\s*(.*)/ ) { |
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$res->{$flavour}->{$tag}->{ind2} = $1; |
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} |
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} |
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return $res; |
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} |
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=head3 clear |
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|
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Clear internal cache. |
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=cut |
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sub clear { |
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my ( $self, $params ) = @_; |
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$cached_indicators = undef; |
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} |
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=head1 AUTHOR |
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Marcel de Rooy, Rijksmuseum Amsterdam, The Netherlands |
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Janusz Kaczmarek |
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Koha Development Team |
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=cut |
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1; |