#!/usr/bin/perl
# Copyright 2000-2002 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Koha; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Written by Stefano Bargioni Pontificia Università della Santa Croce - Rome
# bargioni@pusc.it 2011-11-07
use strict;
use warnings;
use MARC::Record;
use MARC::File::XML;
use MARC::Field;
use C4::Biblio;
use C4::Context;
use Getopt::Long;
use IO::File;
use Pod::Usage;
binmode(STDOUT, ":utf8");
my $help = 0;
my $commit = 50;
my $biblio = 0;
my $auth = 0;
my $tag = '001';
my $subfield = '@';
my $verbose = 0;
GetOptions(
'help|?|h' => \$help,
'a|authorities:s' => \$auth,
'b|biblios:s' => \$biblio,
'c|commit:n' => \$commit,
't|tag:s' => \$tag,
's|subfield:s' => \$subfield,
'v|verbose' => \$verbose,
) or pod2usage(2);
pod2usage( -exitstatus => 0, -verbose => 2 ) if $help;
die('No record type specified') if ( !$biblio && !$auth );
die('You cannot specify both record types') if ( $biblio && $auth );
die("Invalid MARC tag $tag") if ( length($tag) != 3 );
die("Invalid subfield $subfield") if ( length($subfield) != 1 );
die('Invalid commit value') if ( $commit < 1 );
my $dbh = C4::Context->dbh;
my $rows;
$|=1; # autoflush
# check MySQL version >= 5.1. Otherwise MySQL lacks the ExtractValue XML function
my $sqlv = 'select version()';
my $sthv = $dbh->prepare($sqlv);
$sthv->execute;
my ($mysql_version) = $sthv->fetchrow_array();
$sthv->finish;
die('Your MySQL version $mysql_version is less than 5.1') if ($mysql_version lt '5.1');
# An example of $xpath: '//datafield[@tag="999"]/subfield[@code="c"]';
my $xpath = "'//";
if ($tag gt '009') {$xpath .= 'datafield'} else {$xpath .= 'controlfield'};
$xpath .= '[@tag="'.$tag.'"]';
$xpath .= "/subfield[\@code=\"$subfield\"]" if ($subfield ne '@');
$xpath .= "'";
print 'using xpath '.$xpath."\n" if ($verbose);
# exit; # test
print `date` if ($verbose);
if ($auth) {
print "Keeping system numbers of authority records\n" if ($verbose);
# check existence of tag/subfield
$sqlv = "select count(*) from auth_header union select count(*) from auth_header where ExtractValue(marcxml,$xpath) != ''";
$sthv = $dbh->prepare($sqlv);
$sthv->execute;
($rows) = $sthv->fetchrow_array();
my ($ctsxml) = $sthv->fetchrow_array(); # a second line can be absent
if (!defined $ctsxml) {$ctsxml=$rows}
print "$ctsxml of $rows records containing $tag\$$subfield\n" if ($verbose);
$sthv->finish;
die("Tag and/or subfield $tag\$$subfield specified are not present in each record") if($rows-$ctsxml !=0 || $rows+$ctsxml==0);
print "1. dropping primary key for auth_header.authid\n" if ($verbose);
$dbh->do('ALTER TABLE auth_header CHANGE authid authid BIGINT(20) UNSIGNED NOT NULL');
$dbh->do('ALTER TABLE auth_header DROP PRIMARY KEY');
print "2. filling in auth_header.authid... " if ($verbose);
$rows = $dbh->do("UPDATE auth_header SET authid=ExtractValue(marcxml,$xpath)");
print "3. rebuilding primary key for auth_header.authid\n";
$dbh->do('ALTER TABLE auth_header CHANGE authid authid BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY');
print `date` if ($verbose);
}
if ($biblio) {
print "Keeping system numbers of bibliographic records\n" if ($verbose);
# check existence of tag/subfield
$sqlv = "select count(*) from biblioitems union select count(*) from biblioitems where ExtractValue(marcxml,$xpath) != ''";
$sthv = $dbh->prepare($sqlv);
$sthv->execute;
($rows) = $sthv->fetchrow_array();
my ($ctsxml) = $sthv->fetchrow_array(); # a second line can be absent
if (!defined $ctsxml) {$ctsxml=$rows}
print "$ctsxml of $rows records containing $tag\$$subfield\n" if ($verbose);
$sthv->finish;
die("Tag and/or subfield $tag\$$subfield specified are not present in each record") if($rows-$ctsxml !=0 || $rows+$ctsxml==0);
print "adding new columns temp_id to tables biblio, biblioitems, items\n" if ($verbose);
$dbh->do('ALTER TABLE biblio add COLUMN temp_id int');
$dbh->do('ALTER TABLE biblioitems ADD COLUMN temp_id int');
$dbh->do('ALTER TABLE items ADD COLUMN temp_id int');
print "filling in biblioitems.temp_id... " if ($verbose);
$rows = $dbh->do("UPDATE biblioitems SET temp_id=ExtractValue(marcxml,$xpath)");
print "effettuato su $rows records\n";
print "indicizzazione di biblioitems.temp_id\n";
$dbh->do('ALTER TABLE biblioitems ADD INDEX (temp_id)');
print "changing biblio.biblionumber:\n" if ($verbose);
print "1. filling in biblio.temp_id\n"; # update with join
$dbh->do('UPDATE biblio, biblioitems SET biblio.temp_id = biblioitems.temp_id WHERE biblio.biblionumber = biblioitems.biblionumber');
print "2. dropping primary key for biblio.biblionumber\n";
$dbh->do('ALTER TABLE biblio CHANGE biblionumber biblionumber INT(11) NOT NULL');
$dbh->do('ALTER TABLE biblio DROP PRIMARY KEY');
print "3. copying temp_id in biblio.biblionumber\n";
$dbh->do('UPDATE biblio SET biblionumber=temp_id');
print "4. dropping column biblio.temp_id\n";
$dbh->do('ALTER TABLE biblio DROP temp_id');
print "5. rebuilding primary key for biblio.biblionumber\n";
$dbh->do('ALTER TABLE biblio CHANGE biblionumber biblionumber INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY');
print "changing items.biblionumber and items.biblioitemnumber\n" if ($verbose);
print "1. filling in items.temp_id\n"; # update with join
$dbh->do('UPDATE items, biblioitems SET items.temp_id = biblioitems.temp_id WHERE items.biblionumber = biblioitems.biblioitemnumber');
print "2. dropping foreign key that links biblioitems to items\n" if ($verbose);
$dbh->do('ALTER TABLE items DROP FOREIGN KEY items_ibfk_1');
print "3. copying items.temp_id to items.biblionumber and items.biblioitemnumber\n" if ($verbose); # drop and rebuild itembibnoidx and itembinoidx indices?
$dbh->do('UPDATE items SET biblionumber=temp_id, biblioitemnumber=temp_id');
print "4. dropping column items.temp_id\n" if ($verbose);
$dbh->do('ALTER TABLE items DROP temp_id');
print "modifying table biblioitems:\n" if ($verbose);
print "1. dropping foreign key and primary key in biblioitems.biblioitemnumber\n";
$dbh->do('ALTER TABLE biblioitems DROP FOREIGN KEY biblioitems_ibfk_1');
$dbh->do('ALTER TABLE biblioitems CHANGE biblioitemnumber biblioitemnumber INT(11) NOT NULL');
$dbh->do('ALTER TABLE biblioitems DROP PRIMARY KEY');
print "2. copying biblioitems.temp_id to biblioitems.biblionumber e biblioitems.biblioitemnumber\n" if ($verbose);
$dbh->do('UPDATE biblioitems SET biblionumber = temp_id, biblioitemnumber = temp_id'); # drop and rebuild bibinoidx index?
print "3. rebuilding primary key and foreign key in biblioitems.biblioitemnumber\n";
$dbh->do('ALTER TABLE biblioitems CHANGE biblioitemnumber biblioitemnumber INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY');
$dbh->do('ALTER TABLE biblioitems ADD CONSTRAINT biblioitems_ibfk_1 FOREIGN KEY (biblionumber) REFERENCES biblio (biblionumber) ON DELETE CASCADE ON UPDATE CASCADE');
print "4. dropping column biblioitems.temp_id and its index\n" if ($verbose);
$dbh->do('ALTER TABLE biblioitems DROP INDEX temp_id');
$dbh->do('ALTER TABLE biblioitems DROP temp_id');
print `date`." changing 999c and 999d in biblioitems.marc and biblioitems.marcxml\n" if ($verbose);
my $i=0; # record counter
my $sqlu = 'UPDATE biblioitems SET marc=?, marcxml=? WHERE biblionumber=?';
my $sthu = $dbh->prepare($sqlu);
my $sql = "SELECT biblionumber FROM biblioitems ORDER BY biblionumber";
my $sth = $dbh->prepare($sql);
$sth->execute;
$dbh->{AutoCommit}=0;
while (my ($biblionumber) = $sth->fetchrow_array) {
my $record = GetMarcBiblio($biblionumber);
my $f999 = $record->field('999');
$f999->update(c => $biblionumber, d => $biblionumber);
my $marc = $record->as_usmarc();
my $marcxml = $record->as_xml_record();
$sthu->execute($marc,$marcxml,$biblionumber);
$i++;
if ($i%50 == 0) {
print "\r$i";
$dbh->commit();
}
}
print "\r$i\n";
$dbh->commit();
$sthu->finish;
$sth->finish;
print `date`."changed 999c an 999d for $i records\n" if ($verbose);
print "rebuilding foreign key that links biblioitems to items\n" if ($verbose);
$dbh->do('ALTER TABLE items ADD CONSTRAINT `items_ibfk_1` FOREIGN KEY (`biblioitemnumber`) REFERENCES `biblioitems` (`biblioitemnumber`) ON DELETE CASCADE ON UPDATE CASCADE');
print `date` if ($verbose);
}
=head1 sysno_keeper.pl
Preserve system numbers when importing MARC records into Koha.
=head1 SYNOPSIS
sysno_keeper.pl [options]
Options:
-? -h --help this help message
-a --auth keep system numbers of authority records
(incompatible with -b)
-b --biblio keep system numbers of bibliographic records
(incompatible with -a)
-c --commit number of updates before writing biblios to disk (default 50).
Doesn't apply to -a.
-t --tag tag containing the original record no. (default 001)
-s --subfield subfield containing the original record no. (default @)
=head1 OPTIONS
=over 8
=item B<-? -h --help>
Print this message and exit.
=item B<-b --biblios>
Keep system numbers of bibliographic records
=item B<-a --authorities>
Keep system numbers of authority records
=item B<-c --commit>=I<NUMBER>
The I<NUMBER> of records to wait before performing a 'commit' operation when working with bibliographic records. Default 50.
=item B<-t --tag>=I<MARC TAG>
The I<MARC TAG> to copy. Default 001.
=item B<-s --subfield>=I<MARC SUBFIELD>
The I<MARC SUBFIELD> to copy, if -t is not a controlfield. Default @.
=back
=head1 DESCRIPTION
B<sysno_keeper.pl> will preserve original record numbers of bibliographic or authority records.
This will allow record migration without loss of internal links (like 77x in MARC21), or xxx$9 links to auhority records.
sysno_keeper.pl must be run immediately after bulkmarcimport.pl.
For bibliographic records, the original record number is copied from -t$-s or from -t
to biblionumber, biblioitemnumber, 999c and 999d.
For authority records, the original record number is copied from -t$-s or from -t
to auth_header.authid.
This is a time and CPU consuming operation.
Table auth_header is affected for -a.
Tables biblio, biblioitems, items are affected for -b.
WARNING: do not interrupt the operation. Your tables can be seriously damaged. Ensure to have a backup of your MySQL data.
MySQL version 5.1 or greater is required (the ExtractValue() function is needed).
=cut