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package CPAN::SQLite::DBI::Index;
use CPAN::SQLite::DBI qw($dbh);
use base qw(CPAN::SQLite::DBI);
use strict;
use warnings;
our $VERSION = '0.199';
package CPAN::SQLite::DBI::Index::chaps;
use base qw(CPAN::SQLite::DBI::Index);
use CPAN::SQLite::DBI qw($dbh);
package CPAN::SQLite::DBI::Index::mods;
use base qw(CPAN::SQLite::DBI::Index);
use CPAN::SQLite::DBI qw($dbh);
package CPAN::SQLite::DBI::Index::dists;
use base qw(CPAN::SQLite::DBI::Index);
use CPAN::SQLite::DBI qw($dbh);
sub fetch_ids {
my $self = shift;
my $sql = sprintf(qq{SELECT %s,%s,%s FROM %s},
$self->{id}, $self->{name}, 'dist_vers',
$self->{table});
my $sth = $dbh->prepare($sql) or do {
$self->db_error();
return;
};
$sth->execute() or do {
$self->db_error($sth);
return;
};
my ($ids, $versions);
while (my ($id, $key, $vers) = $sth->fetchrow_array()) {
$ids->{$key} = $id;
$versions->{$key} = $vers;
}
$sth->finish;
undef $sth;
return ($ids, $versions);
}
package CPAN::SQLite::DBI::Index::auths;
use base qw(CPAN::SQLite::DBI::Index);
use CPAN::SQLite::DBI qw($dbh);
package CPAN::SQLite::DBI::Index;
use CPAN::SQLite::DBI qw($tables);
use CPAN::SQLite::DBI qw($dbh);
sub fetch_ids {
my $self = shift;
my $sql = sprintf(qq{SELECT %s,%s from %s},
$self->{id}, $self->{name}, $self->{table});
my $sth = $dbh->prepare($sql) or do {
$self->db_error();
return;
};
$sth->execute() or do {
$self->db_error($sth);
return;
};
my $ids;
while (my ($id, $key) = $sth->fetchrow_array()) {
$ids->{$key} = $id;
}
$sth->finish;
undef $sth;
return $ids;
}
sub schema {
my ($self, $data) = @_;
my $schema = '';
foreach my $type (qw(primary other)) {
foreach my $column (keys %{$data->{$type}}) {
$schema .= $column . ' ' . $data->{$type}->{$column} . ", ";
}
}
$schema =~ s{, $}{};
return $schema;
}
sub create_index {
my ($self, $data) = @_;
my $sql = '';
my $key = $data->{key};
my $table = $self->{table};
return 1 unless (defined $key and ref($key) eq 'ARRAY');
foreach my $index(@$key) {
my $id_name = 'ix_' . $table . '_' . $index;
$id_name =~ s/\(\s*\d+\s*\)//;
my $sql = 'CREATE INDEX ' . $id_name . ' ON ' .
$table . '( ' . $index . ' )';
my $sth = $dbh->prepare($sql);
$sth->execute() or do {
$self->db_error($sth);
return;
};
$sth->finish;
undef $sth;
}
return 1;
}
sub drop_table {
my $self = shift;
my $table = $self->{table};
my $sql = qq{SELECT name FROM sqlite_master } .
qq{ WHERE type='table' AND name=?};
my $sth = $dbh->prepare($sql);
$sth->execute($table);
if (defined $sth->fetchrow_array) {
$dbh->do(qq{drop table $table}) or do {
$self->db_error($sth);
return;
};
}
$sth->finish;
undef $sth;
return 1;
}
sub create_table {
my ($self, $schema) = @_;
return unless $schema;
my $sql = sprintf(qq{CREATE TABLE %s (%s)}, $self->{table}, $schema);
my $sth = $dbh->prepare($sql);
$sth->execute() or do {
$self->db_error($sth);
return;
};
$sth->finish;
undef $sth;
return 1;
}
sub create_tables {
my ($self, %args) = @_;
return unless $args{setup};
my $objs = $self->{objs};
foreach my $table(keys %$objs) {
next unless my $schema = $self->schema($tables->{$table});
my $obj = $objs->{$table};
$obj->drop_table or return;
$obj->create_table($schema) or return;
$obj->create_index($tables->{$table}) or return;
}
return 1;
}
sub sth_insert {
my ($self, $fields) = @_;
my $flds = join ',', @$fields;
my $vals = join ',', map '?', @$fields;
my $sql = sprintf(qq{INSERT INTO %s (%s) VALUES (%s)},
$self->{table}, $flds, $vals);
my $sth = $dbh->prepare($sql) or do {
$self->db_error();
return;
};
return $sth;
}
sub sth_update {
my ($self, $fields, $id, $rep_id) = @_;
my $set = join ',', map "$_=?", @$fields;
my $sql = sprintf(qq{UPDATE %s SET %s WHERE %s = %s},
$self->{table}, $set, $self->{id}, $id);
$sql .= qq { AND rep_id = $rep_id } if ($rep_id);
my $sth = $dbh->prepare($sql) or do {
$self->db_error();
return;
};
return $sth;
}
sub sth_delete {
my ($self, $table_id, $rep_id) = @_;
my $sql = sprintf(qq{DELETE FROM %s where %s = ?},
$self->{table}, $table_id);
$sql .= qq { AND rep_id = $rep_id } if ($rep_id);
my $sth = $dbh->prepare($sql) or do {
$self->db_error();
return;
};
return $sth;
}
1;
__END__
=head1 NAME
CPAN::SQLite::DBI::Index - DBI information for indexing the CPAN::SQLite database
=head1 DESCRIPTION
This module provides various methods for L<CPAN::SQLite::Index> in
indexing and populating the database from the index files.
=over
=item C<create_tables>
This creates the database tables.
=item C<drop_table>
This drops a table.
=item C<sth_insert>
This returns an C<$sth> statement handle for inserting
values into a table.
=item C<sth_update>
This returns an C<$sth> statement handle for updating
values into a table.
=item C<sth_delete>
This returns an C<$sth> statement handle for deleting
values from a table.
=back
=head1 SEE ALSO
L<CPAN::SQLite::Index>
=cut
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