Koha/misc/batchDeleteUnusedSubfields.pl
Jonathan Druart 238fabc4ab Bug 28617: Remove kohalib.pl and rely on PERL5LIB
The purpose of this script was to load the relevant Koha lib for the
different scripts (installation, cronjob, CLI, etc.)
However it is not used consistently and we prefer to rely on PERL5LIB.

From bug 28617 comment 6 from Galen:
"""
Time marches on, and one of the motivations for having kohalib.pl - making
it possible to install Koha without setting a single environment variable -
has been obviated by the vast improvements in the ease of installing Koha.

Consequently, I think kohalib.pl can go away.
"""

Test plan:
confirm that the changes make sense and that kohalib.pl can be removed
safely.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
2021-12-07 12:16:28 -10:00

66 lines
2.4 KiB
Perl
Executable file

#!/usr/bin/perl
# small script that rebuilds the non-MARC DB
use strict;
#use warnings; FIXME - Bug 2505
# Koha modules used
use Koha::Script;
use C4::Context;
use C4::Biblio qw( GetMarcStructure );
use Time::HiRes qw( gettimeofday );
use Getopt::Long qw( GetOptions );
my ( $input_marc_file, $number) = ('',0);
my ($version, $confirm,$test_parameter);
GetOptions(
'c' => \$confirm,
'h' => \$version,
't' => \$test_parameter,
);
if ($version || (!$confirm)) {
print <<EOF
This script cleans unused subfields in the MARC DB.
If you alter the MARC parameters and remove a subfield (ie : move it to ignore (10) tab), existing subfields are NOT removed.
It's not a bug, it prevents deleting useful values in case of erroneous move.
This script definitely remove unused subfields in the MARC DB.
syntax :
\t./cleanmarcdb.pl -h (or without arguments => shows this screen)
\t./cleanmarcdb.pl -c (c like confirm => cleans the marc DB (may be long)
\t-t => test only, change nothing in DB
EOF
;#'
die;
}
my $dbh = C4::Context->dbh;
my $i=0;
my $starttime = gettimeofday;
my $cleansubfield = $dbh->prepare("delete from marc_subfield_table where tag=? and subfieldcode=?");
my $cleanword = $dbh->prepare("delete from marc_word where tag=? and subfieldid=?");
# get tags structure
my $tags = GetMarcStructure(1);
foreach my $tag (sort keys(%{$tags})) {
foreach my $subfield (sort keys(%{$tags->{$tag}})) {
next if $subfield eq "lib";
next if $subfield eq "mandatory";
next if $subfield eq "tab";
# DO NOT drop biblionumber, biblioitemnumber and itemnumber.
# they are stored internally, and are mapped to tab -1. This script must keep them or it will completly break Koha DB !!!
next if ($tags->{$tag}->{$subfield}->{kohafield} eq "biblio.biblionumber");
next if ($tags->{$tag}->{$subfield}->{kohafield} eq "biblioitems.biblioitemnumber");
next if ($tags->{$tag}->{$subfield}->{kohafield} eq "items.itemnumber");
# now, test => if field is ignored (in tab -1 or '') => drop everything in the MARC table !
if ($tags->{$tag}->{$subfield}->{tab} eq -1 || $tags->{$tag}->{$subfield}->{tab} eq '') {
print "dropping $tag \$ $subfield\n";
$cleansubfield->execute($tag,$subfield) unless $test_parameter;
$cleanword->execute($tag,$subfield) unless $test_parameter;
print "TEST " if $test_parameter;
print "done\n";
}
}
}
my $timeneeded = gettimeofday - $starttime;
print "done in $timeneeded seconds\n";