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 $subfield (@subfields) {
  65                 if ( !defined($tagslib)
  66                     || $tagslib->{$fieldtag}->{ @$subfield[0] }->{'tab'} >= 0 )
  67                 {
  68                     push @subfield_array,
  69                       {
  70                         subtag => @$subfield[0],
  71                         subkey => _createKey(),
  72                         value  => @$subfield[1],
  73                       };
  74                 }
  75
  76             }
  77
  78             if ( !defined($tagslib) || @subfield_array )
  79             {
  80                 push @array,
  81                   {
  82                     field => [
  83                         {
  84                             tag        => $fieldtag,
  85                             key        => _createKey(),
  86                             indicator1 => $field->indicator(1),
  87                             indicator2 => $field->indicator(2),
  88                             subfield   => [@subfield_array],
  89                         }
  90                     ]
  91                   };
  92             }
  93
  94         }
  95     }
  96     return [@array];
  97 }
  98
  99 =head2 _createKey
 100
 101 Create a random value to set it into the input name
 102
 103 =cut
 104
 105 sub _createKey {
 106     return int(rand(1000000));
 107 }
 108
 109 1;