#!/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 The I of records to wait before performing a 'commit' operation when working with bibliographic records. Default 50. =item B<-t --tag>=I The I to copy. Default 001. =item B<-s --subfield>=I The I to copy, if -t is not a controlfield. Default @. =back =head1 DESCRIPTION B 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