--- /dev/null
+#!/usr/bin/perl
+
+# Copyright 2018 Theke Solutions
+#
+# 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 3 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, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
+
+use C4::Context;
+use C4::Tags;
+
+use Koha::Database;
+use Koha::Tags;
+use Koha::Tags::Approvals;
+use Koha::Tags::Indexes;
+
+use Getopt::Long;
+use Pod::Usage;
+
+=head1 NAME
+
+fix_tags_weight.pl - Fix weight for tags
+
+=head1 SYNOPSIS
+
+fix_tags_weight.pl [ --verbose or -v ] [ --help or -h ]
+
+ Options:
+ --help or -h Brief usage message
+ --verbose or -v Be verbose
+
+=head1 DESCRIPTION
+
+This script fixes the calculated weights for the tags introduced by patrons.
+
+=over 8
+
+=item B<--help>
+
+Prints a brief usage message and exits.
+
+=item B<--verbose>
+
+Prints information about the current weight, and the new one for each term/biblionumber.
+
+=back
+
+=cut
+
+binmode( STDOUT, ":encoding(UTF-8)" );
+
+my $help;
+my $verbose;
+
+my $result = GetOptions(
+ 'help|h' => \$help,
+ 'verbose|v' => \$verbose
+);
+
+if ( not $result or $help ) {
+ pod2usage();
+ exit 0;
+}
+
+fix_tags_approval($verbose);
+fix_tags_index( $verbose );
+
+sub fix_tags_approval {
+
+ my ($verbose) = @_;
+
+ print "Fix tags_approval\n=================\n" if $verbose;
+
+ my $dbh = C4::Context->dbh;
+ # Search the terms in tags_all that don't exist in tags_approval
+ my $sth = $dbh->prepare(
+ q{
+ SELECT term
+ FROM (
+ SELECT DISTINCT(tags_all.term) AS term, tags_approval.term AS approval FROM tags_all
+ LEFT JOIN tags_approval
+ ON (tags_all.term=tags_approval.term)) a
+ WHERE approval IS NULL;
+ }
+ );
+ $sth->execute();
+ my $approved = C4::Context->preference('TagsModeration') ? 0 : 1;
+
+ # Add missing terms to tags_approval
+ while ( my $row = $sth->fetchrow_hashref ) {
+ my $term = $row->{term};
+ C4::Tags::add_tag_approval( $term, 0, $approved );
+ print "Added => $term\n";
+ }
+
+ my $approvals = Koha::Tags::Approvals->search;
+ # Recalculate weight_total for all tags_approval rows
+ while ( my $approval = $approvals->next ) {
+ my $count = Koha::Tags->search( { term => $approval->term } )->count;
+ print $approval->term . "\t|\t" . $approval->weight_total . "\t=>\t" . $count . "\n"
+ if $verbose;
+ $approval->weight_total($count)->store;
+ }
+}
+
+sub fix_tags_index {
+
+ my ($verbose) = @_;
+ my $indexes = Koha::Tags::Indexes->search;
+
+ print "Fix tags_index\n==============\n" if $verbose;
+
+ while ( my $index = $indexes->next ) {
+ my $count
+ = Koha::Tags->search( { term => $index->term, biblionumber => $index->biblionumber } )
+ ->count;
+ print $index->term . "/"
+ . $index->biblionumber . "\t|\t"
+ . $index->weight
+ . "\t=>\t"
+ . $count . "\n"
+ if $verbose;
+ $index->weight($count)->store;
+ }
+}
+
+1;