Koha/Util/MARC.pm

   1 package Koha::Util::MARC;
   2
   3 # Copyright 2013 C & P Bibliography Services
   4 #
   5 # This file is part of Koha.
   6 #
   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.
  11 #
  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.
  15 #
  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.
  19
  20 use Modern::Perl;
  21 use MARC::Record;
  22
  23 =head1 NAME
  24
  25 Koha::Util::MARC - utility class with routines for working with MARC records
  26
  27 =head1 METHODS
  28
  29 =head2 createMergeHash
  30
  31 Create a hash to use when merging MARC records
  32
  33 =cut
  34
  35 sub createMergeHash {
  36     my ( $record, $tagslib ) = @_;
  37
  38     return unless $record;
  39
  40     my @array;
  41     my @fields = $record->fields();
  42
  43     foreach my $field (@fields) {
  44         my $fieldtag = $field->tag();
  45         if ( $fieldtag < 10 ) {
  46             if ( !defined($tagslib)
  47                 || $tagslib->{$fieldtag}->{'@'}->{'tab'} >= 0 )
  48             {
  49                 push @array,
  50                   {
  51                     field => [
  52                         {
  53                             tag   => $fieldtag,
  54                             key   => _createKey(),
  55                             value => $field->data(),
  56                         }
  57                     ]
  58                   };
  59             }
  60         }
  61         else {
  62             my @subfields = $field->subfields();
  63             my @subfield_array;
  64             foreach my $subfield (@subfields) {
  65                 if (
  66                     !defined($tagslib)
  67                     || (   defined $tagslib->{$fieldtag}
  68                         && defined $tagslib->{$fieldtag}->{ @$subfield[0] }
  69                         && defined $tagslib->{$fieldtag}->{ @$subfield[0] }->{'tab'}
  70                         && $tagslib->{$fieldtag}->{ @$subfield[0] }->{'tab'} >= 0 )
  71                   )
  72                 {
  73                     push @subfield_array,
  74                       {
  75                         subtag => @$subfield[0],
  76                         subkey => _createKey(),
  77                         value  => @$subfield[1],
  78                       };
  79                 }
  80
  81             }
  82
  83             if (
  84                 (
  85                     !defined($tagslib) || ( defined $tagslib->{$fieldtag}
  86                         && defined $tagslib->{$fieldtag}->{'tab'}
  87                         && $tagslib->{$fieldtag}->{'tab'} >= 0 )
  88                 )
  89                 && @subfield_array
  90               )
  91             {
  92                 push @array,
  93                   {
  94                     field => [
  95                         {
  96                             tag        => $fieldtag,
  97                             key        => _createKey(),
  98                             indicator1 => $field->indicator(1),
  99                             indicator2 => $field->indicator(2),
 100                             subfield   => [@subfield_array],
 101                         }
 102                     ]
 103                   };
 104             }
 105
 106         }
 107     }
 108     return [@array];
 109 }
 110
 111 =head2 _createKey
 112
 113 Create a random value to set it into the input name
 114
 115 =cut
 116
 117 sub _createKey {
 118     return int(rand(1000000));
 119 }
 120
 121 =head2 getAuthorityAuthorizedHeading
 122
 123 Retrieve the authorized heading from a MARC authority record
 124
 125 =cut
 126
 127 sub getAuthorityAuthorizedHeading {
 128     my ( $record, $schema ) = @_;
 129     return unless ( ref $record eq 'MARC::Record' );
 130     if ( $schema eq 'unimarc' ) {
 131
 132         # construct UNIMARC summary, that is quite different from MARC21 one
 133         # accepted form
 134         foreach my $field ( $record->field('2..') ) {
 135             return $field->as_string('abcdefghijlmnopqrstuvwxyz');
 136         }
 137     }
 138     else {
 139         foreach my $field ( $record->field('1..') ) {
 140             my $tag = $field->tag();
 141             next if "152" eq $tag;
 142
 143             # FIXME - 152 is not a good tag to use
 144             # in MARC21 -- purely local tags really ought to be
 145             # 9XX
 146             if ( $tag eq '100' ) {
 147                 return $field->as_string('abcdefghjklmnopqrstvxyz68');
 148             }
 149             elsif ( $tag eq '110' ) {
 150                 return $field->as_string('abcdefghklmnoprstvxyz68');
 151             }
 152             elsif ( $tag eq '111' ) {
 153                 return $field->as_string('acdefghklnpqstvxyz68');
 154             }
 155             elsif ( $tag eq '130' ) {
 156                 return $field->as_string('adfghklmnoprstvxyz68');
 157             }
 158             elsif ( $tag eq '148' ) {
 159                 return $field->as_string('abvxyz68');
 160             }
 161             elsif ( $tag eq '150' ) {
 162                 return $field->as_string('abvxyz68');
 163             }
 164             elsif ( $tag eq '151' ) {
 165                 return $field->as_string('avxyz68');
 166             }
 167             elsif ( $tag eq '155' ) {
 168                 return $field->as_string('abvxyz68');
 169             }
 170             elsif ( $tag eq '180' ) {
 171                 return $field->as_string('vxyz68');
 172             }
 173             elsif ( $tag eq '181' ) {
 174                 return $field->as_string('vxyz68');
 175             }
 176             elsif ( $tag eq '182' ) {
 177                 return $field->as_string('vxyz68');
 178             }
 179             elsif ( $tag eq '185' ) {
 180                 return $field->as_string('vxyz68');
 181             }
 182             else {
 183                 return $field->as_string();
 184             }
 185         }
 186     }
 187     return;
 188 }
 189
 190 1;