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1 | package DBIx::Class::Storage::DBI::Pg; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use DBD::Pg; |
7 | |
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8 | use base qw/DBIx::Class::Storage::DBI/; |
9 | |
10 | # __PACKAGE__->load_components(qw/PK::Auto/); |
11 | |
17614944 |
12 | # Warn about problematic versions of DBD::Pg |
13 | warn "DBD::Pg 1.49 is strongly recommended" |
14 | if ($DBD::Pg::VERSION < 1.49); |
15 | |
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16 | sub _dbh_last_insert_id { |
17 | my ($self, $dbh, $seq) = @_; |
18 | $dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq}); |
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19 | } |
20 | |
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21 | sub last_insert_id { |
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22 | my ($self,$source,$col) = @_; |
23 | my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col)); |
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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; |
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27 | $self->dbh_do($self->can('_dbh_last_insert_id'), $seq); |
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28 | } |
29 | |
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30 | sub _dbh_get_autoinc_seq { |
31 | my ($self, $dbh, $schema, $table, @pri) = @_; |
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32 | |
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\(+'([^']+)'::(?:text|regclass)\)/) { |
37 | my $seq = $1; |
38 | # may need to strip quotes -- see if this works |
39 | return $seq =~ /\./ ? $seq : $info->{TABLE_SCHEM} . "." . $seq; |
40 | } |
41 | } |
42 | return; |
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43 | } |
44 | |
45 | sub get_autoinc_seq { |
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46 | my ($self,$source,$col) = @_; |
47 | |
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48 | my @pri = $source->primary_columns; |
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49 | my ($schema,$table) = $source->name =~ /^(.+)\.(.+)$/ ? ($1,$2) |
50 | : (undef,$source->name); |
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51 | |
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52 | $self->dbh_do($self->can('_dbh_get_autoinc_seq'), $schema, $table, @pri); |
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53 | } |
54 | |
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55 | sub sqlt_type { |
56 | return 'PostgreSQL'; |
57 | } |
58 | |
45fa8288 |
59 | sub datetime_parser_type { return "DateTime::Format::Pg"; } |
60 | |
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61 | 1; |
62 | |
75d07914 |
63 | =head1 NAME |
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64 | |
65 | DBIx::Class::Storage::DBI::Pg - Automatic primary key class for PostgreSQL |
66 | |
67 | =head1 SYNOPSIS |
68 | |
69 | # In your table classes |
70 | __PACKAGE__->load_components(qw/PK::Auto Core/); |
71 | __PACKAGE__->set_primary_key('id'); |
72 | __PACKAGE__->sequence('mysequence'); |
73 | |
74 | =head1 DESCRIPTION |
75 | |
76 | This class implements autoincrements for PostgreSQL. |
77 | |
78 | =head1 AUTHORS |
79 | |
80 | Marcus Ramberg <m.ramberg@cpan.org> |
81 | |
82 | =head1 LICENSE |
83 | |
84 | You may distribute this code under the same terms as Perl itself. |
85 | |
86 | =cut |