package DBIx::Class::Storage::DBI::Pg;
use strict;
use warnings;
use DBD::Pg qw(:pg_types);
use base qw/DBIx::Class::Storage::DBI/;
# __PACKAGE__->load_components(qw/PK::Auto/);
# Warn about problematic versions of DBD::Pg
warn "DBD::Pg 1.49 is strongly recommended"
if ($DBD::Pg::VERSION < 1.49);
sub _dbh_last_insert_id {
my ($self, $dbh, $seq) = @_;
$dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
}
sub last_insert_id {
my ($self,$source,$col) = @_;
my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
$self->throw_exception("could not fetch primary key for " . $source->name . ", could not "
. "get autoinc sequence for $col (check that table and column specifications are correct "
. "and in the correct case)") unless defined $seq;
$self->dbh_do($self->can('_dbh_last_insert_id'), $seq);
}
sub _dbh_get_autoinc_seq {
my ($self, $dbh, $schema, $table, @pri) = @_;
while (my $col = shift @pri) {
my $info = $dbh->column_info(undef,$schema,$table,$col)->fetchrow_hashref;
if(defined $info->{COLUMN_DEF} and
$info->{COLUMN_DEF} =~ /^nextval\(+'([^']+)'::(?:text|regclass)\)/) {
my $seq = $1;
# may need to strip quotes -- see if this works
return $seq =~ /\./ ? $seq : $info->{TABLE_SCHEM} . "." . $seq;
}
}
return;
}
sub get_autoinc_seq {
my ($self,$source,$col) = @_;
my @pri = $source->primary_columns;
my ($schema,$table) = $source->name =~ /^(.+)\.(.+)$/ ? ($1,$2)
: (undef,$source->name);
$self->dbh_do($self->can('_dbh_get_autoinc_seq'), $schema, $table, @pri);
}
sub sqlt_type {
return 'PostgreSQL';
}
sub datetime_parser_type { return "DateTime::Format::Pg"; }
sub bind_attribute_by_data_type {
my ($self,$data_type) = @_;
my $bind_attributes = {
bytea => { pg_type => DBD::Pg::PG_BYTEA },
};
if( defined $bind_attributes->{$data_type} ) {
return $bind_attributes->{$data_type};
}
else {
return;
}
}
1;
=head1 NAME
DBIx::Class::Storage::DBI::Pg - Automatic primary key class for PostgreSQL
=head1 SYNOPSIS
# In your table classes
__PACKAGE__->load_components(qw/PK::Auto Core/);
__PACKAGE__->set_primary_key('id');
__PACKAGE__->sequence('mysequence');
=head1 DESCRIPTION
This class implements autoincrements for PostgreSQL.
=head1 AUTHORS
Marcus Ramberg <m.ramberg@cpan.org>
=head1 LICENSE
You may distribute this code under the same terms as Perl itself.
=cut