/usr/share/perl5/RDF/Trine/Store/DBI/mysql.pm is in librdf-trine-perl 1.019-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | =head1 NAME
RDF::Trine::Store::DBI::mysql - Mysql subclass of DBI store
=head1 VERSION
This document describes RDF::Trine::Store::DBI::mysql version 1.019
=head1 SYNOPSIS
use RDF::Trine::Store::DBI::mysql;
=head1 DESCRIPTION
=cut
package RDF::Trine::Store::DBI::mysql;
use strict;
use warnings;
no warnings 'redefine';
use base qw(RDF::Trine::Store::DBI);
use Scalar::Util qw(blessed reftype refaddr);
our $VERSION;
BEGIN {
$VERSION = "1.019";
my $class = __PACKAGE__;
$RDF::Trine::Store::STORE_CLASSES{ $class } = $VERSION;
}
sub _config_meta {
return {
required_keys => [qw(dsn username password name)],
fields => {
name => { description => 'Model Name', type => 'string' },
dsn => { description => 'DSN', type => 'string', template => 'DBI:mysql:database=[%database%]' },
database => { description => 'Database Name', type => 'string' },
username => { description => 'Username', type => 'string' },
password => { description => 'Password', type => 'password' },
driver => { description => 'Driver', type => 'string', value => 'mysql' },
},
}
}
=head1 METHODS
Beyond the methods documented below, this class inherits methods from the
L<RDF::Trine::Store::DBI> class.
=over 4
=item C<< new_with_config ( \%config ) >>
Returns a new RDF::Trine::Store object based on the supplied configuration hashref.
=cut
sub new_with_config {
my $proto = shift;
my $config = shift;
$config->{storetype} = 'DBI::mysql';
return $proto->SUPER::new_with_config( $config );
}
=item C<< add_statement ( $statement [, $context] ) >>
Adds the specified C<$statement> to the underlying model.
=cut
sub add_statement {
my $self = shift;
my $stmt = shift;
my $context = shift;
my $dbh = $self->dbh;
# Carp::confess unless (blessed($stmt));
my $stable = $self->statements_table;
unless (blessed($stmt) and $stmt->can('nodes')) {
Carp::confess "No statement passed to add_statement";
}
my @nodes = $stmt->nodes;
foreach my $n (@nodes) {
$self->_add_node( $n );
}
my @values = map { $self->_mysql_node_hash( $_ ) } @nodes;
if ($stmt->isa('RDF::Trine::Statement::Quad')) {
if (blessed($context)) {
throw RDF::Trine::Error::MethodInvocationError -text => "add_statement cannot be called with both a quad and a context";
}
$context = $stmt->context;
} else {
my $cid = do {
if ($context) {
$self->_add_node( $context );
$self->_mysql_node_hash( $context );
} else {
0
}
};
push(@values, $cid);
}
my $sql = sprintf( "INSERT IGNORE INTO ${stable} (Subject, Predicate, Object, Context) VALUES (?,?,?,?)" );
my $sth = $dbh->prepare( $sql );
$sth->execute(@values);
}
sub _add_node {
my $self = shift;
my $node = shift;
my $hash = $self->_mysql_node_hash( $node );
my $dbh = $self->dbh;
my @cols;
my $table;
my %values;
# Carp::confess unless (blessed($node));
if ($node->is_blank) {
$table = "Bnodes";
@cols = qw(ID Name);
@values{ @cols } = ($hash, $node->blank_identifier);
} elsif ($node->is_resource) {
$table = "Resources";
@cols = qw(ID URI);
@values{ @cols } = ($hash, $node->uri_value);
} elsif ($node->isa('RDF::Trine::Node::Literal')) {
$table = "Literals";
@cols = qw(ID Value);
@values{ @cols } = ($hash, $node->literal_value);
$values{ 'Datatype' } = '';
$values{ 'Language' } = '';
if ($node->has_language) {
push(@cols, 'Language');
$values{ 'Language' } = $node->literal_value_language;
} elsif ($node->has_datatype) {
push(@cols, 'Datatype');
$values{ 'Datatype' } = $node->literal_datatype;
}
}
my $sql = "INSERT IGNORE INTO ${table} (" . join(', ', @cols) . ") VALUES (" . join(',',('?')x scalar(@cols)) . ")";
my $sth = $dbh->prepare( $sql );
$sth->execute( map "$_", @values{ @cols } );
return $hash;
}
=item C<< init >>
Creates the necessary tables in the underlying database.
=cut
sub init {
my $self = shift;
my $dbh = $self->dbh;
my $name = $self->model_name;
my $id = RDF::Trine::Store::DBI::_mysql_hash( $name );
local($dbh->{AutoCommit}) = 0;
unless ($self->_table_exists("Literals")) {
$dbh->do( <<"END" ) || do { $dbh->rollback; return };
CREATE TABLE IF NOT EXISTS Literals (
ID bigint unsigned PRIMARY KEY,
Value longtext NOT NULL,
Language text NOT NULL,
Datatype text NOT NULL
) CHARACTER SET utf8 COLLATE utf8_bin;
END
$dbh->do( <<"END" ) || do { $dbh->rollback; return };
CREATE TABLE IF NOT EXISTS Resources (
ID bigint unsigned PRIMARY KEY,
URI text NOT NULL
);
END
$dbh->do( <<"END" ) || do { $dbh->rollback; return };
CREATE TABLE IF NOT EXISTS Bnodes (
ID bigint unsigned PRIMARY KEY,
Name text NOT NULL
);
END
$dbh->do( <<"END" ) || do { $dbh->rollback; return };
CREATE TABLE IF NOT EXISTS Models (
ID bigint unsigned PRIMARY KEY,
Name text NOT NULL
);
END
$dbh->commit or warn $dbh->errstr;
}
unless ($self->_table_exists("Statements${id}")) {
$dbh->do( <<"END" ) || do { $dbh->rollback; return };
CREATE TABLE IF NOT EXISTS Statements${id} (
Subject bigint unsigned NOT NULL,
Predicate bigint unsigned NOT NULL,
Object bigint unsigned NOT NULL,
Context bigint unsigned NOT NULL DEFAULT 0,
PRIMARY KEY (Subject, Predicate, Object, Context)
);
END
# $dbh->do( "DROP TABLE IF EXISTS Statements${id}" ) || do { $dbh->rollback; return };
# $dbh->do( "CREATE INDEX idx_${name}_spog ON Statements${id} (Subject,Predicate,Object,Context);", undef, $name ); # || do { $dbh->rollback; return };
$dbh->do( "CREATE INDEX `idx_${name}_pogs` ON Statements${id} (Predicate,Object,Context,Subject);", undef, $name ); # || do { $dbh->rollback; return };
$dbh->do( "CREATE INDEX `idx_${name}_opcs` ON Statements${id} (Object,Predicate,Context,Subject);", undef, $name ); # || do { $dbh->rollback; return };
$dbh->do( "CREATE INDEX `idx_${name}_cpos` ON Statements${id} (Context,Predicate,Object,Subject);", undef, $name ); # || do { $dbh->rollback; return };
# $dbh->do( "DELETE FROM Models WHERE ID = ${id}") || do { $dbh->rollback; return };
$dbh->do( "INSERT INTO Models (ID, Name) VALUES (${id}, ?)", undef, $name );
$dbh->commit;
}
}
1; # Magic true value required at end of module
__END__
=back
=head1 BUGS
Please report any bugs or feature requests to through the GitHub web interface
at L<https://github.com/kasei/perlrdf/issues>.
=head1 AUTHOR
Gregory Todd Williams C<< <gwilliams@cpan.org> >>
=head1 COPYRIGHT
Copyright (c) 2006-2012 Gregory Todd Williams. This
program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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