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#!/usr/bin/perl |
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use Modern::Perl; |
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use C4::Context; |
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use C4::AuthoritiesMarc; |
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use C4::Biblio; |
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use C4::Search; |
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use C4::Charset; |
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use C4::Heading; |
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use Koha::SearchEngine; |
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use Koha::SearchEngine::QueryBuilder; |
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use Koha::Logger; |
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use Koha::Authorities; |
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use Getopt::Long; |
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use YAML; |
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use List::MoreUtils qw/uniq/; |
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=head1 NAME |
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misc/migration_tools/dedup_authorities.pl - Deduping authorities script |
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=head1 SYNOPSIS |
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dedup_authorities.pl [ -h ] [ -where="authid < 5000" ] -c [ -v ] [ -m d ] [ -a PERSO_NAME ] |
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Options: |
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-h --help display usage statement |
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-v --verbose increase verbosity, can be repeated for greater verbosity |
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-m --method method for choosing the reference authority, can be: date, used, or ppn (UNIMARC) |
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can be repeated |
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-w --where a SQL WHERE statement to limit the authority records checked |
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-c --confirm without this parameter no changes will be made, script will run in test mode |
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-a --authtypecode check only specified auth type, repeatable |
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=head1 OPTIONS |
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=over |
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=item B<--method> |
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Method(s) used to choose which authority to keep in case we found |
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duplicates. |
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<methods> is a string composed of letters describing what methods to use |
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and in which order. |
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Letters can be: |
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date: keep the most recent authority (based on 005 field) |
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used: keep the most used authority |
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ppn: PPN (UNIMARC only), keep the authority with a ppn (when some |
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authorities don't have one, based on 009 field) |
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Example: |
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-m ppn -m date -m used |
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Among the authorities that have a PPN, keep the most recent, |
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and if two (or more) have the same date in 005, keep the |
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most used. |
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Default is 'used' |
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=item B<--where> |
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limit the deduplication to SOME authorities only |
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Example: |
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-where="authid < 5000" |
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will only auths with a low auth_id (old records) |
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=item B<--verbose> |
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display verbose loggin, can be repeated twice for more info |
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=item B<--help> |
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show usage information. |
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=back |
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=cut |
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my @methods; |
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my @authtypecodes; |
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my $help = 0; |
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my $confirm = 0; |
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my $verbose = 0; |
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my $wherestring = ""; |
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my $debug = 0; |
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my $result = GetOptions ( |
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"d|debug" => \$debug, |
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"v|verbose+" => \$verbose, |
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"c|confirm" => \$confirm, |
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"h|help" => \$help, |
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"w|where=s" => \$wherestring, |
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"m|method=s" => \@methods, |
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"a|authtypecode=s" => \@authtypecodes |
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); |
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pod2usage( -verbose => 2) if ($help); |
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print "RUNNING IN TEST MODE, NO CHANGES WILL BE MADE\n" unless $confirm; |
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$verbose = 1 unless ( $confirm || $verbose ); |
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my @choose_subs; |
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@methods = ('used') unless @methods; |
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foreach my $method ( @methods ) { |
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if ($method eq 'date') { |
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push @choose_subs, \&_get_date; |
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} |
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elsif( $method eq 'ppn') { |
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die 'PPN method is only valid for UNIMARC' |
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unless( C4::Context->preference('marcflavour') eq 'UNIMARC' ); |
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push @choose_subs, \&_has_ppn; |
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} |
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elsif( $method eq 'used') { |
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push @choose_subs, \&_get_usage; |
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} |
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else { |
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warn "Choose method '$method' is not supported"; |
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} |
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} |
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my $dbh = C4::Context->dbh; |
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$verbose and print "Fetching authtypecodes...\n"; |
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my $params = undef; |
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if( @authtypecodes ){ |
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$params = { authtypecode => { -in => \@authtypecodes } }; |
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} |
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my @auth_types = Koha::Authority::Types->search($params); |
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my %auth_match_headings = map { $_->authtypecode => $_->auth_tag_to_report } @auth_types; |
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$verbose and print "Fetching authtypecodes done.\n"; |
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my %biblios; |
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my $seen; |
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for my $authtype (@auth_types) { |
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my $authtypecode = $authtype->authtypecode; |
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my %duplicated; |
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my $deleted = 0; |
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my $updated_bibs = 0; |
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my $i = 0; |
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$verbose and print "Deduping authtype '$authtypecode' \n"; |
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$verbose and print "Fetching authorities for '$authtypecode'... "; |
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my $authorities = Koha::Authorities->search({ authtypecode => $authtypecode }); |
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$authorities = $authorities->search( \$wherestring ) if $wherestring; |
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my $size = $authorities->count; |
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$verbose and print "$size authorities found\n"; |
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while ( my $authority = $authorities->next ) { |
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next if defined $seen->{ $authority->authid }; |
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$seen->{ $authority->authid } = 1; |
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$i++; |
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if ($verbose >= 2) { |
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my $percentage = sprintf("%.2f", $i * 100 / $size); |
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print "Processing authority " . $authority->authid ." ($i/$size $percentage%)\n"; |
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} elsif ($verbose and ($i % 100) == 0) { |
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my $percentage = sprintf("%.2f", $i * 100 / $size); |
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print "Progression for authtype '$authtypecode': $i/$size ($percentage%)\n"; |
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} |
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#authority was marked as duplicate |
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next if defined $duplicated{$authority->authid}; |
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my $authrecord = C4::AuthoritiesMarc::GetAuthority($authority->authid); |
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next unless $authrecord; |
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C4::Charset::SetUTF8Flag($authrecord); |
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$debug and print "Building query...\n"; |
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my $field = $authrecord->field( $auth_match_headings{ $authtypecode } ); |
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unless ( $field ){ |
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warn "Malformed authority record, no heading"; |
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next; |
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} |
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my $heading = C4::Heading->new_from_field( $field, undef, 1 ); #new auth heading |
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my $search_term = $heading->search_form; |
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$debug and print "Building query done\n"; |
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$debug and print "$search_term\n"; |
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$debug and print "Searching..."; |
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#my ($error, $results) = SimpleSearch("match-heading:\"$search_term\"", undef, undef, ["authorityserver"]); |
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my $builder = Koha::SearchEngine::QueryBuilder->new({ index => $Koha::SearchEngine::AUTHORITIES_INDEX } ); |
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my $searcher = Koha::SearchEngine::Search->new({ index => $Koha::SearchEngine::AUTHORITIES_INDEX }); |
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my $query = $builder->build_authorities_query_compat(['match-heading'],[''],[''],['exact'],[$search_term],$authtypecode,''); |
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my ( $results,$total ) = $searcher->search_auth_compat( $query, 0, 50, undef ); |
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if ( !$results ) { |
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$debug and warn $@; |
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$debug and warn YAML::Dump($search_term); |
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$debug and warn $field->as_string; |
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next; |
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} |
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$debug and warn YAML::Dump($results); |
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my @recordids = map { $_->{authid} != $authority->authid ? $_->{authid} : () } @$results; |
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if ( !$results || scalar( @$results ) < 1 || scalar @recordids < 1 ){ |
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($verbose >= 2) and print 'No duplicates found for ' . $heading->display_form . "\n"; |
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next; |
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} |
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map { $seen->{ $_ } = 1 } @recordids; |
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$debug and print "Searching done.\n"; |
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$debug and print "Choosing records..."; |
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my ( $recordid_to_keep, @recordids_to_merge ) |
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= _choose_records( $authority->authid, @recordids ); |
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$debug and print "Choosing records done.\n"; |
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unless (!$confirm or @recordids_to_merge == 0) { |
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($verbose >= 2) and print "Merging ". join(',',@recordids_to_merge) ." into $recordid_to_keep.\n"; |
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for my $localauthid (@recordids_to_merge) { |
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next if $recordid_to_keep == $localauthid; |
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my @editedbiblios = eval { |
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C4::AuthoritiesMarc::merge({ |
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merge_from => $localauthid, |
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MARCfrom => undef, |
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mergeto => $recordid_to_keep, |
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MARCto => undef |
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}); |
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}; |
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if ($@) { |
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warn "merging $localauthid into $recordid_to_keep failed :", $@; |
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} else { |
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print "Updated " . scalar @editedbiblios . " biblios\n"; |
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$updated_bibs += scalar @editedbiblios; |
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$duplicated{$localauthid} = 2; |
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print "Deleting $localauthid\n"; |
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C4::AuthoritiesMarc::DelAuthority({ authid => $localauthid, skip_merge => 1 }); |
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$deleted++; |
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} |
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} |
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($verbose >= 2) and print "Merge done.\n"; |
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$duplicated{$recordid_to_keep} = 1; |
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} elsif ($verbose >= 2) { |
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if (@recordids_to_merge > 0) { |
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print 'Would merge ' |
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. join(',', @recordids_to_merge) |
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. " into $recordid_to_keep (".$heading->display_form.")\n"; |
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} else { |
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print "No duplicates found for $recordid_to_keep\n"; |
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} |
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} |
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} |
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$verbose and print "End of deduping for authtype '$authtypecode'\n"; |
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$verbose and print "Updated $updated_bibs biblios\n"; |
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$verbose and print "Deleted $deleted authorities\n"; |
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} |
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# Update biblios |
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my @biblios_to_update = grep {defined $biblios{$_} and $biblios{$_} == 1} |
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keys %biblios; |
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if( @biblios_to_update > 0 ) { |
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} else { |
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print "No biblios to update\n"; |
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} |
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exit 0; |
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sub _get_id { |
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my $record = shift; |
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if($record and (my $field = $record->field('001'))) { |
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return $field->data(); |
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} |
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return 0; |
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} |
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sub _has_ppn { |
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my $record = shift; |
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if($record and (my $field = $record->field('009'))) { |
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return $field->data() ? 1 : 0; |
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} |
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return 0; |
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} |
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sub _get_date { |
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my $record = shift; |
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if($record and (my $field = $record->field('005'))) { |
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return $field->data(); |
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} |
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return 0; |
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} |
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sub _get_usage { |
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my $record = shift; |
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if($record and (my $field = $record->field('001'))) { |
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return Koha::Authorities->get_usage_count({ authid => $field->data() }); |
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} |
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return 0; |
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} |
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=head2 _choose_records |
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this function takes input of candidate record ids to merging |
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and returns |
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first the record to merge to |
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and list of records to merge from |
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=cut |
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sub _choose_records { |
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my @recordids = @_; |
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my @records = map { C4::AuthoritiesMarc::GetAuthority($_) } @recordids; |
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my @candidate_auths = @records; |
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# See http://www.sysarch.com/Perl/sort_paper.html Schwartzian transform |
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my @candidate_authids = |
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map $_->[0] => |
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sort { |
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$b->[1] <=> $a->[1] || |
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$b->[2] <=> $a->[2] || |
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$b->[3] <=> $a->[3] |
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} |
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map [ |
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_get_id($_), |
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$choose_subs[0] ? $choose_subs[0]->($_) : 0, |
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$choose_subs[1] ? $choose_subs[1]->($_) : 0, |
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$choose_subs[2] ? $choose_subs[2]->($_) : 0 |
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] => |
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( $records[0], @candidate_auths ); |
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return @candidate_authids; |
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} |
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