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#!/usr/bin/perl |
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# |
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# Copyright (C) 2012 Tamil s.a.r.l. |
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# |
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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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|
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use Modern::Perl; |
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BEGIN { |
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# find Koha's Perl modules |
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# test carefully before changing this |
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use FindBin; |
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eval { require "$FindBin::Bin/../kohalib.pl" }; |
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} |
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|
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use Getopt::Long; |
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use Pod::Usage; |
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use YAML; |
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use C4::Context; |
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my ($doit, $alterengine, $help); |
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my $result = GetOptions( |
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'doit' => \$doit, |
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'alterengine' => \$alterengine, |
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'help|h' => \$help, |
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); |
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|
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sub usage { |
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pod2usage( -verbose => 2 ); |
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exit; |
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} |
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sub fix_mysql_constraints { |
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my ($doit) = @_; |
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# Get all current DB constraints |
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my $dbh = C4::Context->dbh; |
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$dbh->{RaiseError} = 1; |
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$dbh->{ShowErrorStatement} = 1; |
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my $database = C4::Context->config('database'); |
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my %db_constraint = map { $_->[0] => undef } @{$dbh->selectall_arrayref( |
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"SELECT CONSTRAINT_NAME |
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FROM information_schema.table_constraints |
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WHERE constraint_schema = '$database' |
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AND CONSTRAINT_TYPE != 'PRIMARY KEY' ")}; |
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|
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my $base_dir = C4::Context->config('intranetdir'); |
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open my $fh, "<", "$base_dir/installer/data/mysql/kohastructure.sql"; |
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unless ($fh) { |
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say "Unable to open kohastructure.sql file"; |
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exit; |
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} |
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my $table_name; |
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my $engine_altered; |
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# FIXME: This hide problem. But if you run this script, it means that you |
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# have already identified issues with your Koha DB integrity, and will fix |
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# any necessary tables requiring records deleting. |
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$dbh->do("SET FOREIGN_KEY_CHECKS=0"); |
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my $line = <$fh>; |
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while ( $line ) { |
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if ( $line =~ /CREATE TABLE (.*?) / ) { |
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$table_name = $1; |
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$table_name =~ s/\`//g; |
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$engine_altered = 0; |
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$line = <$fh>; |
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next; |
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} |
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unless ( $line =~ /CONSTRAINT /i ) { |
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$line = <$fh>; |
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next; |
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} |
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my $constraint = $line; |
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CONTRAINT_LOOP: |
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while ( $constraint !~ /,/ ) { |
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$line = <$fh>; |
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last CONTRAINT_LOOP if $line =~ /ENGINE/i; |
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$line =~ s/^ */ /; |
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$constraint .= $line; |
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} |
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$constraint =~ s/^ *//; |
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$constraint =~ s/\n//g; |
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$constraint =~ s/ *$//; |
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$constraint =~ s/,$//; |
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my ($name) = $constraint =~ /CONSTRAINT (.*?) /; |
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$name =~ s/\`//g; |
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unless ( exists($db_constraint{$name}) ) { |
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if ( $alterengine && !$engine_altered ) { |
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my $sql = "ALTER TABLE $table_name ENGINE = 'InnoDB'"; |
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say $sql; |
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$dbh->do($sql) if $doit; |
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$engine_altered = 1; |
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} |
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my $sql = "ALTER TABLE $table_name ADD $constraint"; |
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say $sql; |
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$dbh->do($sql) if $doit; |
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} |
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$line = <$fh> if $line =~ /CONSTRAINT/i; |
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} |
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} |
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usage() if $help; |
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fix_mysql_constraints($doit); |
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=head1 NAME |
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|
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fix_mysql_constraints.pl |
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|
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=head1 SYNOPSIS |
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|
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fix_mysql_constraints.pl --help |
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fix_mysql_constraints.pl |
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fix_mysql_constraints.pl --doit |
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=head1 DESCRIPTION |
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|
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See bug #8915 |
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Alter tables to add missing constraints. Prior to altering tables, it may be |
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necessary to alter tables storage engine from MyISAM to InnoDB. |
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=over 8 |
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|
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=item B<--help> |
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Prints this help |
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=item B<--doit> |
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Alter tables effectively, otherwise just display the ALTER TABLE directives. |
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=item B<--alterengine |
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Prior to add missing constraints, alter table engine to InnoDB. |
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=back |
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=cut |
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