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package CPAN::SQLite::DBI;
use strict;
use warnings;
require File::Spec;
use DBI;
our $VERSION = '0.199';
use base qw(Exporter);
our ($dbh, $tables, @EXPORT_OK);
@EXPORT_OK = qw($dbh $tables);
sub rlike {
my ($x, $y) = @_;
return ($x =~ /$y/i) ? 1 : 0;
}
$tables = {
mods => {
primary => {mod_id => q{INTEGER NOT NULL PRIMARY KEY}},
other => {
mod_name => q{VARCHAR(100) NOT NULL},
dist_id => q{INTEGER NOT NULL},
mod_abs => q{TEXT},
mod_vers => q{VARCHAR(10)},
dslip => q{VARCHAR(5)},
chapterid => q{INTEGER},
},
key => [qw/dist_id mod_name/],
name => 'mod_name',
id => 'mod_id',
has_a => {dists => 'dist_id'},
},
dists => {
primary => {dist_id => q{INTEGER NOT NULL PRIMARY KEY}},
other => {
dist_name => q{VARCHAR(90) NOT NULL},
auth_id => q{INTEGER NOT NULL},
dist_file => q{VARCHAR(110) NOT NULL},
dist_vers => q{VARCHAR(20)},
dist_abs => q{TEXT},
dist_dslip => q{VARCHAR(5)},
},
key => [qw/auth_id dist_name/],
name => 'dist_name',
id => 'dist_id',
has_a => {auths => 'auth_id'},
has_many => {mods => 'dist_id',
chaps => 'dist_id',
},
},
auths => {
primary => {auth_id => q{INTEGER NOT NULL PRIMARY KEY}},
other => {
cpanid => q{VARCHAR(20) NOT NULL},
fullname => q{VARCHAR(40) NOT NULL},
email => q{TEXT},
},
key => [qw/cpanid/],
has_many => {dists => 'dist_id'},
name => 'cpanid',
id => 'auth_id',
},
chaps => {
primary => {chap_id => q{INTEGER NOT NULL PRIMARY KEY}},
other => {
dist_id => q{INTEGER NOT NULL},
chapterid => q{INTEGER},
subchapter => q{TEXT},
},
key => [qw/dist_id/],
id => 'chap_id',
name => 'chapterid',
has_a => {dists => 'dist_id'},
},
};
sub new {
my ($class, %args) = @_;
my $db_dir = $args{db_dir} || $args{CPAN};
my $db = File::Spec->catfile($db_dir, $args{db_name});
$dbh ||= DBI->connect("DBI:SQLite:$db", '', '',
{RaiseError => 1, AutoCommit => 0})
or die "Cannot connect to $db";
$dbh->{AutoCommit} = 0;
$dbh->func('RLIKE', 2, \&rlike, 'create_function');
my $objs;
foreach my $table (keys %$tables) {
my $cl = $class . '::' . $table;
$objs->{$table} = $cl->make(table => $table);
}
for my $table (keys %$tables) {
foreach my $type (qw(primary other)) {
foreach my $column (keys %{$tables->{$table}->{$type}}) {
push @{$tables->{$table}->{columns}}, $column;
}
}
}
bless {objs => $objs}, $class;
}
sub make {
my ($class, %args) = @_;
my $table = $args{table};
die qq{No table exists corresponding to '$class'} unless $table;
my $info = $tables->{$table};
die qq{No information available for table '$table'} unless $info;
my $self = {table => $table,
columns => $info->{columns},
id => $info->{id},
name => $info->{name},
};
foreach (qw(name has_a has_many)) {
next unless defined $info->{$_};
$self->{$_} = $info->{$_};
}
bless $self, $class;
}
sub db_error {
my ($obj, $sth) = @_;
return unless $dbh;
if ($sth) {
$sth->finish;
undef $sth;
}
$obj->{error_msg} = q{Database error: } . $dbh->errstr;
}
1;
__END__
=head1 NAME
CPAN::SQLite::DBI - DBI information for the CPAN::SQLite database
=head1 DESCRIPTION
This module is used by L<CPAN::SQLite::Index> and
L<CPAN::SQLite::Search> to set up some basic database
information. It exports two variables:
=over 3
=item C<$tables>
This is a hash reference whose keys are the table names, with
corresponding values being hash references whose keys are the
columns of the table and values being the associated data types.
=item C<$dbh>
This is a L<DBI> database handle used to connect to the
database.
=back
The main method of this module is C<make>, which is used
to make the tables of the database.
=head1 SEE ALSO
L<CPAN::SQLite::Index> and L<CPAN::SQLite::Search>
=cut
|
