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#!/usr/bin/perl |
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# Copyright 2011 Catalyst IT |
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# This file is part of Koha. |
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# |
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# Koha is free software; you can redistribute it and/or modify it under the |
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# terms of the GNU General Public License as published by the Free Software |
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# Foundation; either version 2 of the License, or (at your option) any later |
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# version. |
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# |
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY |
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License along |
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# with Koha; if not, write to the Free Software Foundation, Inc., |
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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# This will run through the biblios and save the 001 field for every |
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# record, linking it to the biblionumber. It will then go through again, and |
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# for every record that has a 773$w field, it will look up the corresponding |
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# parent record (using the saved 001 map) and set its header to indicate it's |
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# the parent of a set. It will then set the header of the one with 773$w to |
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# show that it's a member of a set. Then Koha will know to link them up. |
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# This is done by setting position 7 in the leader to 's' for the "parent" |
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# records, and setting position 19 to 'c'. This causes Koha to create links |
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# between them. |
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use strict; |
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use warnings; |
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use C4::Context; |
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use C4::Biblio qw/ ModBiblioMarc /; |
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use MARC::Record; |
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use MARC::Field; |
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use MARC::File::XML; |
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my $dbh = C4::Context->dbh; |
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my $all_bibs_marc_sth = $dbh->prepare("SELECT biblionumber,marc FROM biblioitems"); |
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$all_bibs_marc_sth->execute(); |
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# First pass catches all the 001s and maps them to biblionumbers |
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my %ctrl_to_bib; |
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my $count = 0; |
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while (my $row = $all_bibs_marc_sth->fetchrow_arrayref) { |
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display(\$count); |
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my $bib = $row->[0]; |
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my $marcval = $row->[1]; |
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die "No marcval!" if (!$marcval); |
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my $marc = eval { MARC::Record->new_from_usmarc($marcval) }; |
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if ($@) { |
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warn "Error parsing MARC for bib $bib: $@\n"; |
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next; |
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} |
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my $field = $marc->field('001'); |
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if (!$field) { |
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warn "No 001 field for bib $bib"; |
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next; |
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} |
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my $data = $field->data; |
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if (!$data) { |
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warn "No 001 data for bib $bib"; |
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next; |
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} |
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$ctrl_to_bib{$data} = $bib; |
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} |
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# Now do much the same thing, but check out the 773$w field, and for each one |
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# we find, update the appropriate records. |
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print "Part duex\n"; |
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$count = 0; |
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$all_bibs_marc_sth->execute(); |
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while (my $row = $all_bibs_marc_sth->fetchrow_arrayref) { |
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display(\$count); |
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my ($bib, $marcval) = @$row; |
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my $marc = eval { MARC::Record->new_from_usmarc($marcval) }; |
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if ($@) { |
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warn "Error parsing MARC for bib $bib: $@\n"; |
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next; |
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} |
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my $field = $marc->field('773'); |
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next if !$field; |
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my $subfield = $field->subfield('w'); |
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next if !$subfield; |
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if (my $parent_bib = $ctrl_to_bib{$subfield}) { |
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update_parent($parent_bib); |
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delete $ctrl_to_bib{$subfield}; |
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} |
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update_child($bib, $marc); |
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} |
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print "\n"; |
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my $get_marc_sth; |
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sub update_parent { |
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my ($bib) = @_; |
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$get_marc_sth ||= $dbh->prepare("SELECT marc FROM biblioitems WHERE biblionumber=?"); |
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$get_marc_sth->execute($bib); |
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my $row = $get_marc_sth->fetchrow_arrayref; |
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if (!$row) { |
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die "Failed to look up parent for bib $bib"; |
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} |
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my $marcval = $row->[0]; |
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die "No marc value for bib $bib" if !$marcval; |
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my $marc = MARC::Record->new_from_usmarc($marcval); |
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my $leader = $marc->leader; |
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substr($leader, 7, 1) = 's'; |
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$marc->leader($leader); |
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# Using this function isn't recommended, but as all we're doing is |
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# re-writing the leader, it should be OK here. |
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ModBiblioMarc($marc, $bib, ''); |
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warn "Updating parent: $bib\n"; |
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} |
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sub update_child { |
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my ($bib, $marc) = @_; |
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my $leader = $marc->leader; |
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substr($leader, 19, 1) = 'c'; |
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$marc->leader($leader); |
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ModBiblioMarc($marc, $bib, ''); |
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warn "Updating child: $bib\n"; |
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} |
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sub display { |
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my $count = shift; |
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if ($$count % 70 == 0) { |
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print "\n$$count "; |
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} else { |
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print "."; |
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} |
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$$count++; |
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} |