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Bug 5608 - command-line tool to switch information in 440 and 490 tags 

With the MARC21 standard moving from the 440 tag to the 490, this tool is
to help libraries make the move.  It switches any information in 440 tags to
490 tags, and any information in 490 tags to 440 tags.  That seemed like the
best way to go to me.

To Test:
locate some biblios with 440 or 490 tags filled.
run bin/migration_tools/switch_marc21_series_info.pl -c
observe that the information in the biblios has switched 4xx tags.

http://bugs.koha-community.org/show_bug.cgi?id=5608
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>

Comment: Works as described. No errors.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
This commit is contained in:
Michael Hafen 2013-02-20 14:32:06 -07:00 committed by Jared Camins-Esakov
parent f91da3c618
commit eea7b9d20d
1 changed files with 173 additions and 0 deletions
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173
misc/migration_tools/switch_marc21_series_info.pl Executable file
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#!/usr/bin/perl
use strict;
use warnings;
# Script to switch the MARC21 440$anv and 490$av information
BEGIN {
# find Koha's Perl modules
# test carefully before changing this
use FindBin;
eval { require "$FindBin::Bin/../kohalib.pl" };
}
use C4::Biblio;
use C4::Context;
use Getopt::Long;
my $commit;
my $update_frameworks;
my $show_help;
my $verbose;
my $result = GetOptions(
'c' => \$commit,
'm' => \$update_frameworks,
'h|help' => \$show_help,
'v' => \$verbose,
);
if ( ! $result || $show_help ) {
print_usage();
exit 0;
}
my $dbh = C4::Context->dbh;
my $count_sth = $dbh->prepare( 'SELECT COUNT(biblionumber) FROM biblio CROSS JOIN biblioitems USING (biblionumber) WHERE ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="a"]\') OR ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="v"]\') OR ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="n"]\') OR ExtractValue(marcxml,\'//datafield[@tag="490"]/subfield[@code="a"]\') OR ExtractValue(marcxml,\'//datafield[@tag="490"]/subfield[@code="v"]\')' );
my $bibs_sth = $dbh->prepare( 'SELECT biblionumber FROM biblio CROSS JOIN biblioitems USING (biblionumber) WHERE ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="a"]\') OR ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="v"]\') OR ExtractValue(marcxml,\'//datafield[@tag="440"]/subfield[@code="n"]\') OR ExtractValue(marcxml,\'//datafield[@tag="490"]/subfield[@code="a"]\') OR ExtractValue(marcxml,\'//datafield[@tag="490"]/subfield[@code="v"]\')' );
unless ( $commit ) {
print_usage();
}
print "Examining MARC records...\n";
$count_sth->execute();
my ( $num_records ) = $count_sth->fetchrow;
unless ( $commit ) {
if ( $num_records ) {
print "This action would change $num_records MARC records\n";
}
else {
print "There appears to be no series information to change\n";
}
exit 0;
}
print "Changing $num_records MARC records...\n";
$bibs_sth->execute();
while ( my ( $biblionumber ) = $bibs_sth->fetchrow ) {
my $framework = GetFrameworkCode( $biblionumber ) || '';
my ( @newfields );
# MARC21 specific
my ( $series1_t, $series1_f ) = ( '440', 'a' );
my ( $volume1_t, $volume1_f ) = ( '440', 'v' );
my ( $number1_t, $number1_f ) = ( '440', 'n' );
my ( $series2_t, $series2_f ) = ( '490', 'a' );
my ( $volume2_t, $volume2_f ) = ( '490', 'v' );
# Get biblio marc
my $biblio = GetMarcBiblio( $biblionumber );
foreach my $field ( $biblio->field( $series1_t ) ) {
my @newsubfields;
my @series1 = $field->subfield( $series1_f );
my @volume1 = $field->subfield( $volume1_f );
my @number1 = $field->subfield( $number1_f );
my $i = 0;
foreach my $num ( @number1 ) {
$volume1[$i] .= " " if ( $volume1[$i] );
$volume1[$i++] .= $num if ( $num );
}
while ( @series1 || @volume1 ) {
if ( @series1 ) {
push @newsubfields, ( $series2_f, shift @series1 );
}
if ( @volume1 ) {
push @newsubfields, ( $volume2_f, shift @volume1 );
}
}
my $new_field = MARC::Field->new( $series2_t, '', '',
@newsubfields );
$biblio->delete_fields( $field );
push @newfields, $new_field;
}
foreach my $field ( $biblio->field( $series2_t ) ) {
my @newsubfields;
my @series2 = $field->subfield( $series2_f );
my @volume2 = $field->subfield( $volume2_f );
while ( @series2 || @volume2 ) {
if ( @series2 ) {
push @newsubfields, ( $series1_f, shift @series2 );
}
if ( @volume2 ) {
push @newsubfields, ( $volume1_f, shift @volume2 );
}
}
my $new_field = MARC::Field->new( $series1_t, '', '',
@newsubfields );
$biblio->delete_fields( $field );
push @newfields, $new_field;
}
$biblio->insert_fields_ordered( @newfields );
ModBiblioMarc( $biblio, $biblionumber, $framework );
if ( $verbose ) {
print "Changing MARC for biblio number $biblionumber.\n";
}
else {
print ".";
}
}
print "\n";
if ( $update_frameworks ) {
print "Updating Koha to MARC mappings for seriestitle and volume\n";
# set new mappings for koha fields
$dbh->do(
"UPDATE marc_subfield_structure SET kohafield='seriestitle'
WHERE tagfield='490' AND tagsubfield='a'"
);
$dbh->do(
"UPDATE marc_subfield_structure SET kohafield='volume'
WHERE tagfield='490' AND tagsubfield='v'"
);
# empty old koha fields
$dbh->do(
"UPDATE marc_subfield_structure SET kohafield=''
WHERE kohafield='seriestitle' AND tagfield='440' AND tagsubfield='a'"
);
$dbh->do(
"UPDATE marc_subfield_structure SET kohafield=''
WHERE kohafield='volume' AND tagfield='440' AND tagsubfield='v'"
);
}
sub print_usage {
print <<_USAGE_;
$0: switch MARC21 440 tag and 490 tag contents
Parameters:
-c Commit the changes to the marc records
-m Also update the Koha field to MARC framework mappings for the
seriestitle and volume Koha fields.
--help or -h show this message.
_USAGE_
}