C4/Breeding.pm

   1 package C4::Breeding;
   2
   3 # Copyright 2000-2002 Katipo Communications
   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 2 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 with
  17 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  18 # Suite 330, Boston, MA  02111-1307 USA
  19
  20 use strict;
  21 use warnings;
  22
  23 use C4::Biblio;
  24 use C4::Koha;
  25 use C4::Charset;
  26 use MARC::File::USMARC;
  27 use C4::ImportBatch;
  28
  29 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  30
  31 BEGIN {
  32         # set the version for version checking
  33         $VERSION = 0.02;
  34         require Exporter;
  35         @ISA = qw(Exporter);
  36         @EXPORT = qw(&ImportBreeding &BreedingSearch);
  37 }
  38
  39 =head1 NAME
  40
  41 C4::Breeding : module to add biblios to import_records via
  42                the breeding/reservoir API.
  43
  44 =head1 SYNOPSIS
  45
  46     use C4::Scan;
  47     &ImportBreeding($marcrecords,$overwrite_biblio,$filename,$z3950random,$batch_type);
  48
  49     C<$marcrecord> => the MARC::Record
  50     C<$overwrite_biblio> => if set to 1 a biblio with the same ISBN will be overwritted.
  51                                 if set to 0 a biblio with the same isbn will be ignored (the previous will be kept)
  52                                 if set to -1 the biblio will be added anyway (more than 1 biblio with the same ISBN
  53                                 possible in the breeding
  54     C<$encoding> => USMARC
  55                         or UNIMARC. used for char_decoding.
  56                         If not present, the parameter marcflavour is used instead
  57     C<$z3950random> => the random value created during a z3950 search result.
  58
  59 =head1 DESCRIPTION
  60
  61     ImportBreeding import MARC records in the reservoir (import_records/import_batches tables).
  62     the records can be properly encoded or not, we try to reencode them in utf-8 if needed.
  63     works perfectly with BNF server, that sends UNIMARC latin1 records. Should work with other servers too.
  64
  65 =head2 ImportBreeding
  66
  67         ImportBreeding($marcrecords,$overwrite_biblio,$filename,$encoding,$z3950random,$batch_type);
  68
  69         TODO description
  70
  71 =cut
  72
  73 sub ImportBreeding {
  74     my ($marcrecords,$overwrite_biblio,$filename,$encoding,$z3950random,$batch_type) = @_;
  75     my @marcarray = split /\x1D/, $marcrecords;
  76
  77     my $dbh = C4::Context->dbh;
  78
  79     my $batch_id = 0;
  80     if ($batch_type eq 'z3950') {
  81         $batch_id = GetZ3950BatchId($filename);
  82     } else {
  83         # create a new one
  84         $batch_id = AddImportBatch('create_new', 'staging', 'batch', $filename, '');
  85     }
  86     my $searchisbn = $dbh->prepare("select biblioitemnumber from biblioitems where isbn=?");
  87     my $searchissn = $dbh->prepare("select biblioitemnumber from biblioitems where issn=?");
  88     # FIXME -- not sure that this kind of checking is actually needed
  89     my $searchbreeding = $dbh->prepare("select import_record_id from import_biblios where isbn=? and title=?");
  90
  91 #     $encoding = C4::Context->preference("marcflavour") unless $encoding;
  92     # fields used for import results
  93     my $imported=0;
  94     my $alreadyindb = 0;
  95     my $alreadyinfarm = 0;
  96     my $notmarcrecord = 0;
  97     my $breedingid;
  98     for (my $i=0;$i<=$#marcarray;$i++) {
  99         my ($marcrecord, $charset_result, $charset_errors);
 100         ($marcrecord, $charset_result, $charset_errors) =
 101             MarcToUTF8Record($marcarray[$i]."\x1D", C4::Context->preference("marcflavour"), $encoding);
 102
 103 #         warn "$i : $marcarray[$i]";
 104         # FIXME - currently this does nothing
 105         my @warnings = $marcrecord->warnings();
 106
 107         if (scalar($marcrecord->fields()) == 0) {
 108             $notmarcrecord++;
 109         } else {
 110             my $oldbiblio = TransformMarcToKoha($dbh,$marcrecord,'');
 111             # if isbn found and biblio does not exist, add it. If isbn found and biblio exists,
 112             # overwrite or ignore depending on user choice
 113             # drop every "special" char : spaces, - ...
 114             $oldbiblio->{isbn} = C4::Koha::_isbn_cleanup($oldbiblio->{isbn}); # FIXME C4::Koha::_isbn_cleanup should be public
 115             # search if biblio exists
 116             my $biblioitemnumber;
 117             if ($oldbiblio->{isbn}) {
 118                 $searchisbn->execute($oldbiblio->{isbn});
 119                 ($biblioitemnumber) = $searchisbn->fetchrow;
 120             } else {
 121                 if ($oldbiblio->{issn}) {
 122                     $searchissn->execute($oldbiblio->{issn});
 123                         ($biblioitemnumber) = $searchissn->fetchrow;
 124                 }
 125             }
 126             if ($biblioitemnumber && $overwrite_biblio ne 2) {
 127                 $alreadyindb++;
 128             } else {
 129                 # FIXME - in context of batch load,
 130                 # rejecting records because already present in the reservoir
 131                 # not correct in every case.
 132                 # search in breeding farm
 133                 if ($oldbiblio->{isbn}) {
 134                     $searchbreeding->execute($oldbiblio->{isbn},$oldbiblio->{title});
 135                     ($breedingid) = $searchbreeding->fetchrow;
 136                 } elsif ($oldbiblio->{issn}){
 137                     $searchbreeding->execute($oldbiblio->{issn},$oldbiblio->{title});
 138                     ($breedingid) = $searchbreeding->fetchrow;
 139                 }
 140                 if ($breedingid && $overwrite_biblio eq '0') {
 141                     $alreadyinfarm++;
 142                 } else {
 143                     if ($breedingid && $overwrite_biblio eq '1') {
 144                         ModBiblioInBatch($breedingid, $marcrecord);
 145                     } else {
 146                         my $import_id = AddBiblioToBatch($batch_id, $imported, $marcrecord, $encoding, $z3950random);
 147                         $breedingid = $import_id;
 148                     }
 149                     $imported++;
 150                 }
 151             }
 152         }
 153     }
 154     return ($notmarcrecord,$alreadyindb,$alreadyinfarm,$imported,$breedingid);
 155 }
 156
 157
 158 =head2 BreedingSearch
 159
 160 ($count, @results) = &BreedingSearch($title,$isbn,$random);
 161 C<$title> contains the title,
 162 C<$isbn> contains isbn or issn,
 163 C<$random> contains the random seed from a z3950 search.
 164
 165 C<$count> is the number of items in C<@results>. C<@results> is an
 166 array of references-to-hash; the keys are the items from the C<import_records> and
 167 C<import_biblios> tables of the Koha database.
 168
 169 =cut
 170
 171 sub BreedingSearch {
 172     my ($title,$isbn,$z3950random) = @_;
 173     my $dbh   = C4::Context->dbh;
 174     my $count = 0;
 175     my ($query,@bind);
 176     my $sth;
 177     my @results;
 178
 179     $query = "SELECT import_record_id, file_name, isbn, title, author
 180               FROM  import_biblios
 181               JOIN import_records USING (import_record_id)
 182               JOIN import_batches USING (import_batch_id)
 183               WHERE ";
 184     if ($z3950random) {
 185         $query .= "z3950random = ?";
 186         @bind=($z3950random);
 187     } else {
 188         @bind=();
 189         if ($title) {
 190             $query .= "title like ?";
 191             push(@bind,"$title%");
 192         }
 193         if ($title && $isbn) {
 194             $query .= " and ";
 195         }
 196         if ($isbn) {
 197             $query .= "isbn like ?";
 198             push(@bind,"$isbn%");
 199         }
 200     }
 201     $sth   = $dbh->prepare($query);
 202     $sth->execute(@bind);
 203     while (my $data = $sth->fetchrow_hashref) {
 204             $results[$count] = $data;
 205             # FIXME - hack to reflect difference in name
 206             # of columns in old marc_breeding and import_records
 207             # There needs to be more separation between column names and
 208             # field names used in the templates </soapbox>
 209             $data->{'file'} = $data->{'file_name'};
 210             $data->{'id'} = $data->{'import_record_id'};
 211             $count++;
 212     } # while
 213
 214     $sth->finish;
 215     return($count, @results);
 216 } # sub breedingsearch
 217
 218 1;
 219 __END__
 220