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|
package CPAN::SQLite::Populate;
use strict;
use warnings;
no warnings qw(redefine);
use CPAN::SQLite::Util qw($table_id has_hash_data print_debug);
use CPAN::SQLite::DBI::Index;
use CPAN::SQLite::DBI qw($dbh);
use File::Find;
use File::Basename;
use File::Spec::Functions;
use File::Path;
our $dbh = $CPAN::SQLite::DBI::dbh;
my ($setup);
our $VERSION = '0.199';
my %tbl2obj;
$tbl2obj{$_} = __PACKAGE__ . '::' . $_
for (qw(dists mods auths chaps));
my %obj2tbl = reverse %tbl2obj;
sub new {
my ($class, %args) = @_;
$setup = $args{setup};
my $index = $args{index};
my @tables = qw(dists mods auths);
foreach my $table (@tables) {
my $obj = $index->{$table};
die "Please supply a CPAN::SQLite::Index::$table object"
unless ($obj and ref($obj) eq "CPAN::SQLite::Index::$table");
}
my $state = $args{state};
unless ($setup) {
die "Please supply a CPAN::SQLite::State object"
unless ($state and ref($state) eq 'CPAN::SQLite::State');
}
my $cdbi = CPAN::SQLite::DBI::Index->new(%args);
my $self = {index => $index,
state => $state,
obj => {},
cdbi => $cdbi,
db_name => $args{db_name},
};
bless $self, $class;
}
sub populate {
my $self = shift;
if ($setup) {
unless ($self->{cdbi}->create_tables(setup => $setup)) {
warn "Creating tables failed";
return;
}
}
unless ($self->create_objs()) {
warn "Cannot create objects";
return;
}
unless ($self->populate_tables()) {
warn "Populating tables failed";
return;
}
return 1;
}
sub create_objs {
my $self = shift;
my @tables = qw(dists auths mods chaps);
foreach my $table (@tables) {
my $obj;
my $pack = $tbl2obj{$table};
my $index = $self->{index}->{$table};
if ($index and ref($index) eq "CPAN::SQLite::Index::$table") {
my $info = $index->{info};
return unless has_hash_data($info);
$obj = $pack->new(info => $info,
cdbi => $self->{cdbi}->{objs}->{$table});
}
else {
$obj = $pack->new(cdbi => $self->{cdbi}->{objs}->{$table});
}
$self->{obj}->{$table} = $obj;
}
foreach my $table (@tables) {
my $obj = $self->{obj}->{$table};
foreach (@tables) {
next if ref($obj) eq $tbl2obj{$_};
$obj->{obj}->{$_} = $self->{obj}->{$_};
}
}
unless ($setup) {
my $state = $self->{state};
my @tables = qw(auths dists mods);
my @data = qw(ids insert update delete);
foreach my $table (@tables) {
my $state_obj = $state->{obj}->{$table};
my $pop_obj = $self->{obj}->{$table};
$pop_obj->{$_} = $state_obj->{$_} for (@data);
}
}
return 1;
}
sub populate_tables {
my $self = shift;
my @methods = $setup ? qw(insert) : qw(insert update delete);
my @tables = qw(auths dists mods chaps);
for my $method (@methods) {
for my $table (@tables) {
my $obj = $self->{obj}->{$table};
unless ($obj->$method()) {
if (my $error = $obj->{error_msg}) {
print_debug("Fatal error from ", ref($obj), ": ", $error, $/);
return;
}
else {
my $info = $obj->{info_msg};
print_debug("Info from ", ref($obj), ": ", $info, $/);
}
}
}
}
return 1;
}
package CPAN::SQLite::Populate::auths;
use base qw(CPAN::SQLite::Populate);
use CPAN::SQLite::Util qw(has_hash_data print_debug);
sub new {
my ($class, %args) = @_;
my $info = $args{info};
die "No author info available" unless has_hash_data($info);
my $cdbi = $args{cdbi};
die "No dbi object available"
unless ($cdbi and ref($cdbi) eq 'CPAN::SQLite::DBI::Index::auths');
my $self = {
info => $info,
insert => {},
update => {},
delete => {},
ids => {},
obj => {},
cdbi => $cdbi,
error_msg => '',
info_msg => '',
};
bless $self, $class;
}
sub insert {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $info = $self->{info};
my $cdbi = $self->{cdbi};
my $data = $setup ? $info : $self->{insert};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No author data to insert};
return;
}
my $auth_ids = $self->{ids};
my @fields = qw(cpanid email fullname);
my $sth = $cdbi->sth_insert(\@fields) or do {
$self->{error_msg} = $cdbi->{error_msg};
return;
};
foreach my $cpanid (keys %$data) {
my $values = $info->{$cpanid};
next unless ($values and $cpanid);
print_debug("Inserting author $cpanid\n");
$sth->execute($cpanid, $values->{email}, $values->{fullname})
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$auth_ids->{$cpanid} =
$dbh->func('last_insert_rowid') or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub update {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $data = $self->{update};
my $cdbi = $self->{cdbi};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No author data to update};
return;
}
my $info = $self->{info};
my @fields = qw(cpanid email fullname);
foreach my $cpanid (keys %$data) {
print_debug("Updating author $cpanid\n");
next unless $data->{$cpanid};
my $sth = $cdbi->sth_update(\@fields, $data->{$cpanid});
my $values = $info->{$cpanid};
next unless ($cpanid and $values);
$sth->execute($cpanid, $values->{email}, $values->{fullname})
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$sth->finish();
undef $sth;
}
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub delete {
my $self = shift;
$self->{info_msg} = q{No author data to delete};
return;
}
package CPAN::SQLite::Populate::dists;
use base qw(CPAN::SQLite::Populate);
use CPAN::SQLite::Util qw(has_hash_data print_debug);
sub new {
my ($class, %args) = @_;
my $info = $args{info};
die "No dist info available" unless has_hash_data($info);
my $cdbi = $args{cdbi};
die "No dbi object available"
unless ($cdbi and ref($cdbi) eq 'CPAN::SQLite::DBI::Index::dists');
my $self = {
info => $info,
insert => {},
update => {},
delete => {},
ids => {},
obj => {},
cdbi => $cdbi,
error_msg => '',
info_msg => '',
};
bless $self, $class;
}
sub insert {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
return unless my $auth_obj = $self->{obj}->{auths};
my $cdbi = $self->{cdbi};
my $auth_ids = $auth_obj->{ids};
my $dists = $self->{info};
my $data = $setup ? $dists : $self->{insert};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No dist data to insert};
return;
}
unless ($dists and $auth_ids) {
$self->{error_msg}->{index} = q{No dist index data available};
return;
}
my $dist_ids = $self->{ids};
my @fields = qw(auth_id dist_name dist_file dist_vers dist_abs dist_dslip);
my $sth = $cdbi->sth_insert(\@fields) or do {
$self->{error_msg} = $cdbi->{error_msg};
return;
};
foreach my $distname (keys %$data) {
my $values = $dists->{$distname};
my $cpanid = $values->{cpanid};
next unless ($values and $cpanid and $auth_ids->{$cpanid});
print_debug("Inserting $distname of $cpanid\n");
$sth->execute($auth_ids->{$values->{cpanid}}, $distname,
$values->{dist_file}, $values->{dist_vers},
$values->{dist_abs}, $values->{dslip}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$dist_ids->{$distname} = $dbh->func('last_insert_rowid') or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub update {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $cdbi = $self->{cdbi};
my $data = $self->{update};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No dist data to update};
return;
}
return unless my $auth_obj = $self->{obj}->{auths};
my $auth_ids = $auth_obj->{ids};
my $dists = $self->{info};
unless ($dists and $auth_ids) {
$self->{error_msg} = q{No dist index data available};
return;
}
my @fields = qw(auth_id dist_name dist_file dist_vers dist_abs dist_dslip);
foreach my $distname (keys %$data) {
next unless $data->{$distname};
my $sth = $cdbi->sth_update(\@fields, $data->{$distname});
my $values = $dists->{$distname};
my $cpanid = $values->{cpanid};
next unless ($values and $cpanid and $auth_ids->{$cpanid});
print_debug("Updating $distname of $cpanid\n");
$sth->execute($auth_ids->{$values->{cpanid}}, $distname,
$values->{dist_file}, $values->{dist_vers},
$values->{dist_abs}, $values->{dslip}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$sth->finish();
undef $sth;
}
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub delete {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $cdbi = $self->{cdbi};
my $data = $self->{delete};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No dist data to delete};
return;
}
my $sth = $cdbi->sth_delete('dist_id');
foreach my $distname(keys %$data) {
print_debug("Deleting $distname\n");
$sth->execute($data->{$distname}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
package CPAN::SQLite::Populate::mods;
use base qw(CPAN::SQLite::Populate);
use CPAN::SQLite::Util qw(has_hash_data print_debug);
sub new {
my ($class, %args) = @_;
my $info = $args{info};
die "No module info available" unless has_hash_data($info);
my $cdbi = $args{cdbi};
die "No dbi object available"
unless ($cdbi and ref($cdbi) eq 'CPAN::SQLite::DBI::Index::mods');
my $self = {
info => $info,
insert => {},
update => {},
delete => {},
ids => {},
obj => {},
cdbi => $cdbi,
error_msg => '',
info_msg => '',
};
bless $self, $class;
}
sub insert {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
return unless my $dist_obj = $self->{obj}->{dists};
my $cdbi = $self->{cdbi};
my $dist_ids = $dist_obj->{ids};
my $mods = $self->{info};
my $data = $setup ? $mods : $self->{insert};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No module data to insert};
return;
}
unless ($mods and $dist_ids) {
$self->{error_msg} = q{No module index data available};
return;
}
my $mod_ids = $self->{ids};
my @fields = qw(dist_id mod_name mod_abs
mod_vers dslip chapterid);
my $sth = $cdbi->sth_insert(\@fields) or do {
$self->{error_msg} = $cdbi->{error_msg};
return;
};
foreach my $modname(keys %$data) {
my $values = $mods->{$modname};
next unless ($values and $dist_ids->{$values->{dist_name}});
$sth->execute($dist_ids->{$values->{dist_name}}, $modname,
$values->{mod_abs}, $values->{mod_vers},
$values->{dslip}, $values->{chapterid})
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$mod_ids->{$modname} = $dbh->func('last_insert_rowid') or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub update {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $cdbi = $self->{cdbi};
my $data = $self->{update};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No module data to update};
return;
}
return unless my $dist_obj = $self->{obj}->{dists};
my $dist_ids = $dist_obj->{ids};
my $mods = $self->{info};
unless ($dist_ids and $mods) {
$self->{error_msg} = q{No module index data available};
return;
}
my @fields = qw(dist_id mod_name mod_abs
mod_vers dslip chapterid);
foreach my $modname (keys %$data) {
next unless $data->{$modname};
print_debug("Updating $modname\n");
my $sth = $cdbi->sth_update(\@fields, $data->{$modname});
my $values = $mods->{$modname};
next unless ($values and $dist_ids->{$values->{dist_name}});
$sth->execute($dist_ids->{$values->{dist_name}}, $modname,
$values->{mod_abs}, $values->{mod_vers},
$values->{dslip}, $values->{chapterid})
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
$sth->finish();
undef $sth;
}
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub delete {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
return unless my $dist_obj = $self->{obj}->{dists};
my $cdbi = $self->{cdbi};
my $data = $dist_obj->{delete};
if (has_hash_data($data)) {
my $sth = $cdbi->sth_delete('dist_id');
foreach my $distname(keys %$data) {
$sth->execute($data->{$distname}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
}
$data = $self->{delete};
if (has_hash_data($data)) {
my $sth = $cdbi->sth_delete('mod_id');
foreach my $modname(keys %$data) {
$sth->execute($data->{$modname}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
print_debug("Deleting $modname\n");
}
$sth->finish;
undef $sth;
}
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
package CPAN::SQLite::Populate::chaps;
use base qw(CPAN::SQLite::Populate);
use CPAN::SQLite::Util qw(has_hash_data print_debug);
sub new {
my ($class, %args) = @_;
my $cdbi = $args{cdbi};
die "No dbi object available"
unless ($cdbi and ref($cdbi) eq 'CPAN::SQLite::DBI::Index::chaps');
my $self = {
obj => {},
cdbi => $cdbi,
error_msg => '',
info_msg => '',
};
bless $self, $class;
}
sub insert {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
return unless my $dist_obj = $self->{obj}->{dists};
my $cdbi = $self->{cdbi};
my $dist_insert = $dist_obj->{insert};
my $dists = $dist_obj->{info};
my $dist_ids = $dist_obj->{ids};
my $data = $setup ? $dists : $dist_insert;
unless (has_hash_data($data)) {
$self->{info_msg} = q{No chap data to insert};
return;
}
unless ($dists and $dist_ids) {
$self->{error_msg} = q{No chap index data available};
return;
}
my @fields = qw(chapterid dist_id subchapter);
my $sth = $cdbi->sth_insert(\@fields) or do {
$self->{error_msg} = $cdbi->{error_msg};
return;
};
foreach my $dist (keys %$data) {
my $values = $dists->{$dist};
next unless defined $values->{chapterid};
foreach my $chap_id(keys %{$values->{chapterid}}) {
foreach my $sub_chap(keys %{$values->{chapterid}->{$chap_id}}) {
next unless $dist_ids->{$dist};
$sth->execute($chap_id, $dist_ids->{$dist}, $sub_chap)
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
}
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub update {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
my $cdbi = $self->{cdbi};
return unless my $dist_obj = $self->{obj}->{dists};
my $dists = $dist_obj->{info};
my $dist_ids = $dist_obj->{ids};
my $data = $dist_obj->{update};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No chap data to update};
return;
}
unless ($dist_ids and $dists) {
$self->{error_msg} = q{No chap index data available};
return;
}
my $sth = $cdbi->sth_delete('dist_id');
foreach my $distname(keys %$data) {
next unless $data->{$distname};
$sth->execute($data->{$distname}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
my @fields = qw(chapterid dist_id subchapter);
$sth = $cdbi->sth_insert(\@fields);
foreach my $dist (keys %$data) {
my $values = $dists->{$dist};
next unless defined $values->{chapterid};
foreach my $chap_id(keys %{$values->{chapterid}}) {
foreach my $sub_chap(keys %{$values->{chapterid}->{$chap_id}}) {
next unless $dist_ids->{$dist};
$sth->execute($chap_id, $dist_ids->{$dist}, $sub_chap)
or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
}
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
sub delete {
my $self = shift;
unless ($dbh) {
$self->{error_msg} = q{No db handle available};
return;
}
return unless my $dist_obj = $self->{obj}->{dists};
my $cdbi = $self->{cdbi};
my $data = $dist_obj->{delete};
unless (has_hash_data($data)) {
$self->{info_msg} = q{No chap data to delete};
return;
}
my $sth = $cdbi->sth_delete('dist_id');
foreach my $distname(keys %$data) {
$sth->execute($data->{$distname}) or do {
$cdbi->db_error($sth);
$self->{error_msg} = $cdbi->{error_msg};
return;
};
}
$sth->finish();
undef $sth;
$dbh->commit() or do {
$cdbi->db_error();
$self->{error_msg} = $cdbi->{error_msg};
return;
};
return 1;
}
package CPAN::SQLite::Populate;
sub db_error {
my ($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::Populate - create and populate database tables
=head1 DESCRIPTION
This module is responsible for creating the tables
(if C<setup> is passed as an option) and then for
inserting, updating, or deleting (as appropriate) the
relevant information from the indices of
I<CPAN::SQLite::Info> and the
state information from I<CPAN::SQLite::State>. It does
this through the C<insert>, C<update>, and C<delete>
methods associated with each table.
Note that the tables are created with the C<setup> argument
passed into the C<new> method when creating the
C<CPAN::SQLite::Index> object; existing tables will be
dropped.
=head1 TABLES
The tables used are described below - the data types correspond
to mysql tables, with the corresponding adjustments made if
the SQLite database is used.
=head2 mods
This table contains module information, and is created as
mod_id INTEGER NOT NULL PRIMARY KEY
mod_name VARCHAR(100) NOT NULL
dist_id INTEGER NOT NULL
mod_abs TEXT
mod_vers VARCHAR(10)
dslip VARCHAR(5)
chapterid INTEGER
=over 3
=item * mod_id
This is the primary (unique) key of the table.
=item * dist_id
This key corresponds to the id of the associated distribution
in the C<dists> table.
=item * mod_name
This is the module's name.
=item * mod_abs
This is a description, if available, of the module.
=item * mod_vers
This value, if present, gives the version of the module.
=item * dslip
This is a 5 character string expressing the dslip
(development, support, language, interface, public
license) information.
=item * chapterid
This number corresponds to the chapter id of the module,
if present.
=back
=head2 dists
This table contains distribution information, and is created as
dist_id INTEGER NOT NULL PRIMARY KEY
dist_name VARCHAR(90) NOT NULL
auth_id INTEGER NOT NULL
dist_file VARCHAR(110) NOT NULL
dist_vers VARCHAR(20)
dist_abs TEXT
dist_dslip VARCHAR(5)
=over 3
=item * dist_id
This is the primary (unique) key of the table.
=item * auth_id
This corresponds to the CPAN author id of the distribution
in the C<auths> table.
=item * dist_name
This corresponds to the distribution name (eg, for
F<My-Distname-0.22.tar.gz>, C<dist_name> will be C<My-Distname>).
=item * dist_file
This corresponds to the CPAN file name.
=item * dist_vers
This is the version of the CPAN file (eg, for
F<My-Distname-0.22.tar.gz>, C<dist_vers> will be C<0.22>).
=item * dist_abs
This is a description of the distribtion. If not directly
supplied, the description for, eg, C<Foo::Bar>, if present, will
be used for the C<Foo-Bar> distribution.
=item * dist_dslip
This is a 5 character string expressing the dslip
(development, support, language, interface, public
license) information. Normally this comes from the
module name; this value for the distribution name
comes in simple cases where the module name
matches the distribution name by a substitution of
C<::> by C<->.
=back
=head2 auths
This table contains CPAN author information, and is created as
auth_id INTEGER NOT NULL PRIMARY KEY
cpanid VARCHAR(20) NOT NULL
fullname VARCHAR(40) NOT NULL
email TEXT
=over 3
=item * auth_id
This is the primary (unique) key of the table.
=item * cpanid
This gives the CPAN author id.
=item * fullname
This is the full name of the author.
=item * email
This is the supplied email address of the author.
=back
=head2 chaps
This table contains chapter information associated with
distributions. PAUSE allows one, when registering modules,
to associate a chapter id with each module (see the C<mods>
table). This information is used here to associate chapters
(and subchapters) with distributions in the following manner.
Suppose a distribution C<Quantum-Theory> contains a module
C<Beta::Decay> with chapter id C<55>, and
another module C<Laser> with chapter id C<87>. The
C<Quantum-Theory> distribution will then have two
entries in this table - C<chapterid> of I<55> and
C<subchapter> of I<Beta>, and C<chapterid> of I<87> and
C<subchapter> of I<Laser>.
The table is created as follows.
chap_id INTEGER NOT NULL PRIMARY KEY
chapterid INTEGER
dist_id INTEGER NOT NULL
subchapter TEXT
=over 3
=item * chap_id
This is the primary (unique) key of the table.
=item * chapterid
This number corresponds to the chapter id.
=item * dist_id
This is the id corresponding to the distribution in the
C<dists> table.
=item * subchapter
This is the subchapter.
=back
=head1 SEE ALSO
L<CPAN::SQLite::Index>
=cut
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