misc/merge_authority.pl

   1 #!/usr/bin/perl
   2 # script that rebuild thesaurus from biblio table.
   3
   4 use strict;
   5 BEGIN {
   6     # find Koha's Perl modules
   7     # test carefully before changing this
   8     use FindBin;
   9     eval { require "$FindBin::Bin/kohalib.pl" };
  10 }
  11
  12 # Koha modules used
  13 use MARC::File::USMARC;
  14 use MARC::Record;
  15 use MARC::Batch;
  16 use C4::Context;
  17 use C4::Biblio;
  18 use C4::AuthoritiesMarc;
  19 use Time::HiRes qw(gettimeofday);
  20
  21 use Getopt::Long;
  22 my ($version, $verbose, $mergefrom,$mergeto,$noconfirm);
  23 GetOptions(
  24     'h' => \$version,
  25     'f:s' => \$mergefrom,
  26     't:s' => \$mergeto,
  27     'v' => \$verbose,
  28     'n' => \$noconfirm,
  29 );
  30
  31 if ($version || ($mergefrom eq '')) {
  32     print <<EOF
  33 Script to merge an authority into another
  34 parameters :
  35 \th : this version/help screen
  36 \tv : verbose mode (show many things on screen)
  37 \tf : the authority number to merge (the one that can be deleted after the merge).
  38 \tt : the authority number where to merge
  39 \tn : don't ask for confirmation (useful for batch mergings, should not be used on command line)
  40
  41 All biblios with the authority in -t will be modified to be "connected" to authority -f
  42 SAMPLE :
  43 ./merge_authority.pl -f 2457 -t 531
  44
  45 Before doing anything, the script will show both authorities and ask for confirmation. Of course, you can merge only 2 authorities of the same kind.
  46 EOF
  47 ;#
  48 die;
  49 }#/'
  50
  51 my $dbh = C4::Context->dbh;
  52 # my @subf = $subfields =~ /(##\d\d\d##.)/g;
  53
  54 $|=1; # flushes output
  55 my $authfrom = AUTHgetauthority($mergefrom);
  56 my $authto = AUTHgetauthority($mergeto);
  57
  58 my $authtypecodefrom = AUTHfind_authtypecode($mergefrom);
  59 my $authtypecodeto = AUTHfind_authtypecode($mergeto);
  60
  61 unless ($noconfirm) {
  62     print "************\n";
  63     print "You will merge authority : $mergefrom ($authtypecodefrom)\n".$authfrom->as_formatted;
  64     print "\n*************\n";
  65     print "Into authority : $mergeto ($authtypecodeto)\n".$authto->as_formatted;
  66     print "\n\nDo you confirm (enter YES)?";
  67     my $confirm = <STDIN>;
  68     chop $confirm;
  69     unless (uc($confirm) eq 'YES' and $authtypecodefrom eq $authtypecodeto) {
  70         print "IMPOSSIBLE : authorities are not of the same type ($authtypecodefrom vs $authtypecodeto) !!!\n" if $authtypecodefrom ne $authtypecodeto;
  71         print "Merge cancelled\n";
  72         exit;
  73     }
  74 }
  75 my $starttime = gettimeofday;
  76 print "Merging\n" unless $noconfirm;
  77
  78 # search the tag to report
  79 my $sth = $dbh->prepare("select auth_tag_to_report from auth_types where authtypecode=?");
  80 $sth->execute($authtypecodefrom);
  81 my ($auth_tag_to_report) = $sth->fetchrow;
  82 # my $record_to_report = $authto->field($auth_tag_to_report);
  83 print "Reporting authority tag $auth_tag_to_report :\n" if $verbose;
  84 my @record_to = $authto->field($auth_tag_to_report)->subfields();
  85 my @record_from = $authfrom->field($auth_tag_to_report)->subfields();
  86
  87 # search all biblio tags using this authority.
  88 $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
  89 $sth->execute($authtypecodefrom);
  90 my $tags_using_authtype;
  91 while (my ($tagfield) = $sth->fetchrow) {
  92     $tags_using_authtype.= "'".$tagfield."',";
  93 }
  94 chop $tags_using_authtype;
  95 # now, find every biblio using this authority
  96 my $query = "select bibid,tag,tag_indicator,tagorder,subfieldcode,subfieldorder from marc_subfield_table where tag in ($tags_using_authtype) and subfieldcode='9' and subfieldvalue='$mergefrom'";
  97 $sth = $dbh->prepare($query);
  98 $sth->execute;
  99 my $nbdone;
 100 # and delete entries before recreating them
 101 while (my ($bibid,$tag,$tag_indicator,$tagorder,$subfieldcode,$subfieldorder) = $sth->fetchrow) {
 102     my $biblio = GetMarcBiblio($bibid);
 103     print "BEFORE : ".$biblio->as_formatted."\n" if $verbose;
 104     # now, we know what uses the authority & where.
 105     # delete all subfields that are in the same tag/tagorder and that are in the authority (& that are not in tab ignore in the biblio)
 106     # then recreate them with the new authority.
 107     foreach my $subfield (@record_from) {
 108         &MARCdelsubfield($bibid,$tag,$tagorder,$subfield->[0]);
 109     }
 110     &MARCdelsubfield($dbh,$bibid,$tag,$tagorder,'9');
 111     foreach my $subfield (@record_to) {
 112         &MARCaddsubfield($bibid,$tag,$tag_indicator,$tagorder,$subfield->[0],$subfieldorder,$subfield->[1]);
 113     }
 114     &MARCaddsubfield($bibid,$tag,$tag_indicator,$tagorder,'9',$subfieldorder,$mergeto);
 115     $biblio = GetMarcBiblio($bibid);
 116     print "AFTER : ".$biblio->as_formatted."\n" if $verbose;
 117     $nbdone++;
 118 #     &MARCdelsubfield($dbh,$bibid,$tag,$tagorder,$subfieldcode,$subfieldorder);
 119
 120 }
 121 my $timeneeded = gettimeofday - $starttime;
 122 print "$nbdone authorities done in $timeneeded seconds" unless $noconfirm;