67 lines
2.3 KiB
Perl
Executable file
67 lines
2.3 KiB
Perl
Executable file
#!/usr/bin/perl
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# small script that rebuilds the non-MARC DB
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use strict;
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# Koha modules used
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# use MARC::File::USMARC;
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use MARC::Record;
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use MARC::Batch;
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use C4::Context;
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use C4::Biblio;
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use Time::HiRes qw(gettimeofday);
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use Getopt::Long;
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my ( $input_marc_file, $number) = ('',0);
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my ($version, $confirm,$test_parameter);
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GetOptions(
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'c' => \$confirm,
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'h' => \$version,
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't' => \$test_parameter,
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);
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if ($version || (!$confirm)) {
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print <<EOF
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This script cleans unused subfields in the MARC DB.
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If you alter the MARC parameters and remove a subfield (ie : move it to ignore (10) tab), existing subfields are NOT removed.
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It's not a bug, it prevents deleting useful values in case of erroneous move.
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This script definetly remove unused subfields in the MARC DB.
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syntax :
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\t./cleanmarcdb.pl -h (or without arguments => shows this screen)
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\t./cleanmarcdb.pl -c (c like confirm => cleans the marc DB (may be long)
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\t-t => test only, change nothing in DB
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EOF
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;#'
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die;
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}
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my $dbh = C4::Context->dbh;
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my $i=0;
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my $starttime = gettimeofday;
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my $cleansubfield = $dbh->prepare("delete from marc_subfield_table where tag=? and subfieldcode=?");
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my $cleanword = $dbh->prepare("delete from marc_word where tag=? and subfieldid=?");
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# get tags structure
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my $tags = GetMarcStructure(1);
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foreach my $tag (sort keys(%{$tags})) {
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foreach my $subfield (sort keys(%{$tags->{$tag}})) {
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next if $subfield eq "lib";
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next if $subfield eq "mandatory";
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next if $subfield eq "tab";
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# DO NOT drop biblionumber, biblioitemnumber and itemnumber.
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# they are stored internally, and are mapped to tab -1. This script must keep them or it will completly break Koha DB !!!
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next if ($tags->{$tag}->{$subfield}->{kohafield} eq "biblio.biblionumber");
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next if ($tags->{$tag}->{$subfield}->{kohafield} eq "biblioitems.biblioitemnumber");
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next if ($tags->{$tag}->{$subfield}->{kohafield} eq "items.itemnumber");
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# now, test => if field is ignored (in tab -1 or '') => drop everything in the MARC table !
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if ($tags->{$tag}->{$subfield}->{tab} eq -1 || $tags->{$tag}->{$subfield}->{tab} eq '') {
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print "dropping $tag \$ $subfield\n";
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$cleansubfield->execute($tag,$subfield) unless $test_parameter;
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$cleanword->execute($tag,$subfield) unless $test_parameter;
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print "TEST " if $test_parameter;
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print "done\n";
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}
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}
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}
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my $timeneeded = gettimeofday - $starttime;
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print "done in $timeneeded seconds\n";
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