1 package DBIx::Class::Storage::DBI::Pg;
6 use DBD::Pg qw(:pg_types);
8 use base qw/DBIx::Class::Storage::DBI/;
10 # __PACKAGE__->load_components(qw/PK::Auto/);
12 # Warn about problematic versions of DBD::Pg
13 warn "DBD::Pg 1.49 is strongly recommended"
14 if ($DBD::Pg::VERSION < 1.49);
16 sub _dbh_last_insert_id {
17 my ($self, $dbh, $seq) = @_;
18 $dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
22 my ($self,$source,$col) = @_;
23 my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
24 $self->throw_exception("could not fetch primary key for " . $source->name . ", could not "
25 . "get autoinc sequence for $col (check that table and column specifications are correct "
26 . "and in the correct case)") unless defined $seq;
27 $self->dbh_do('_dbh_last_insert_id', $seq);
30 sub _dbh_get_autoinc_seq {
31 my ($self, $dbh, $schema, $table, @pri) = @_;
33 while (my $col = shift @pri) {
34 my $info = $dbh->column_info(undef,$schema,$table,$col)->fetchrow_hashref;
35 if(defined $info->{COLUMN_DEF} and
36 $info->{COLUMN_DEF} =~ /^nextval\(+'([^']+)'::(?:text|regclass)\)/) {
38 # may need to strip quotes -- see if this works
39 return $seq =~ /\./ ? $seq : $info->{TABLE_SCHEM} . "." . $seq;
46 my ($self,$source,$col) = @_;
48 my @pri = $source->primary_columns;
49 my ($schema,$table) = $source->name =~ /^(.+)\.(.+)$/ ? ($1,$2)
50 : (undef,$source->name);
52 $self->dbh_do('_dbh_get_autoinc_seq', $schema, $table, @pri);
59 sub datetime_parser_type { return "DateTime::Format::Pg"; }
61 sub bind_attribute_by_data_type {
62 my ($self,$data_type) = @_;
64 my $bind_attributes = {
65 bytea => { pg_type => DBD::Pg::PG_BYTEA },
68 if( defined $bind_attributes->{$data_type} ) {
69 return $bind_attributes->{$data_type};
77 my ( $self, $type, $seq ) = @_;
78 my ($id) = $self->dbh->selectrow_array("SELECT nextval('${seq}')");
86 DBIx::Class::Storage::DBI::Pg - Automatic primary key class for PostgreSQL
90 # In your table classes
91 __PACKAGE__->load_components(qw/PK::Auto Core/);
92 __PACKAGE__->set_primary_key('id');
93 __PACKAGE__->sequence('mysequence');
97 This class implements autoincrements for PostgreSQL.
101 Marcus Ramberg <m.ramberg@cpan.org>
105 You may distribute this code under the same terms as Perl itself.