misc/maintenance/auth_show_hidden_data.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright 2017 Rijksmuseum
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20
  21 # This script walks through your authority marc records and tells you
  22 # which hidden fields in the framework still contain data.
  23
  24 use Modern::Perl;
  25 use Getopt::Long;
  26 use Pod::Usage;
  27
  28 use Koha::Script;
  29 use Koha::Authorities;
  30 use Koha::Authority::Subfields;
  31 use Koha::MetadataRecord::Authority;
  32
  33 my ( $max, $help, $confirm );
  34 GetOptions( 'confirm' => \$confirm, 'help' => \$help, 'max' => \$max );
  35 if ( !$confirm || $help ) {
  36     pod2usage( -verbose => 2 );
  37     exit;
  38 }
  39
  40 our $hidden_fields = Koha::Authority::Subfields->search(
  41     { hidden => { '!=' => 0 }},
  42 );
  43 our $results = {};
  44
  45 my $auths = Koha::Authorities->search( {}, { order_by => 'authid' } );
  46 my $count = 0;
  47 while( my $record = $auths->next ) {
  48     last if $max && $count >= $max;
  49     scan_record( $record );
  50     $count++;
  51 }
  52 report_results();
  53
  54 sub scan_record {
  55     my ( $record ) = @_;
  56     my $id = $record->authid;
  57     my $type = $record->authtypecode;
  58     my $marc = Koha::MetadataRecord::Authority->get_from_authid($id)->record;
  59     foreach my $fld ( $marc->fields ) { # does not include leader
  60         my @subfields = $fld->is_control_field
  61             ? '@'
  62             : map { $_->[0] } $fld->subfields;
  63         foreach my $sub ( @subfields ) {
  64             next if $results->{ $type } && $results->{ $type }->{ $fld->tag } && $results->{ $type }->{ $fld->tag }->{ $sub };
  65             if( $hidden_fields->find($type, $fld->tag, $sub) ) {
  66                 $results->{ $type }->{ $fld->tag }->{ $sub } = 1;
  67             }
  68         }
  69     }
  70     # To be overcomplete, check the leader too :)
  71     if( $marc->leader ) {
  72         if( $hidden_fields->find($type, '000', '@') ) {
  73             $results->{ $type }->{ '000' }->{ '@' } = 1;
  74         }
  75     }
  76 }
  77
  78 sub report_results {
  79     my $cnt = 0;
  80     foreach my $fw ( sort keys %$results ) {
  81         foreach my $tag ( sort keys %{$results->{$fw}} ) {
  82             foreach my $sub ( sort keys %{$results->{$fw}->{$tag}} ) {
  83                 print "\nFramework ".($fw||'Default').", $tag, $sub contains data but is hidden";
  84                 $cnt++;
  85             }
  86         }
  87     }
  88     if( $cnt ) {
  89         print "\n\nNOTE: You should consider removing the hidden attribute of these framework fields in order to not lose data in those fields when editing authority records.\n";
  90     } else {
  91         print "\nNo hidden (sub)fields containing data were found!\n";
  92     }
  93 }
  94
  95 =head1 NAME
  96
  97 auth_show_hidden_data.pl
  98
  99 =head1 SYNOPSIS
 100
 101 auth_show_hidden_data.pl -c -max 1000
 102
 103 =head1 DESCRIPTION
 104
 105 This script tells you if you have authority data in hidden (sub)fields. That
 106 data will be lost when editing such authority records.
 107
 108 =over 8
 109
 110 =item B<-confirm>
 111
 112 Confirm flag. Required to start checking authority records.
 113
 114 =item B<-help>
 115
 116 Usage statement
 117
 118 =item B<-max>
 119
 120 This optional parameter tells the script to stop after the specified number of
 121 records.
 122
 123 =back
 124
 125 =cut