use DBI and a recent revision of DBD::Pg
[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Parser / DBI / PostgreSQL.pm
1 package SQL::Translator::Parser::DBI::PostgreSQL;
2
3 # -------------------------------------------------------------------
4 # $Id: PostgreSQL.pm,v 1.2 2003-10-13 19:51:31 phrrngtn Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>.
7 #
8 # This program is free software; you can redistribute it and/or
9 # modify it under the terms of the GNU General Public License as
10 # published by the Free Software Foundation; version 2.
11 #
12 # This program is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 # General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 # 02111-1307  USA
21 # -------------------------------------------------------------------
22
23 =head1 NAME
24
25 SQL::Translator::Parser::DBI::PostgreSQL - parser for DBD::Pg
26
27 =head1 SYNOPSIS
28
29 See SQL::Translator::Parser::DBI.
30
31 =head1 DESCRIPTION
32
33 Uses DBIx::DBSchema.
34
35 =cut
36
37 use strict;
38 use DBI;
39 use DBD::Pg 1.31;
40 use Data::Dumper;
41 use SQL::Translator::Schema::Constants;
42
43 use vars qw[ $DEBUG $VERSION @EXPORT_OK ];
44 $VERSION = sprintf "%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/;
45 $DEBUG   = 0 unless defined $DEBUG;
46
47 # -------------------------------------------------------------------
48 sub parse {
49     my ( $tr, $dbh ) = @_;
50
51     my $schema = $tr->schema;
52
53     my ($sth, @tables, $columns);
54     my $stuff;
55
56
57     if ($dbh->{FetchHashKeyName} ne 'NAME_uc') {
58 #        warn "setting dbh attribute {FetchHashKeyName} to NAME_uc";
59         $dbh->{FetchHashKeyName} = 'NAME_uc';
60     }
61
62     if ($dbh->{ChopBlanks} != 1) {
63 #        warn "setting dbh attribute {ChopBlanks} to 1";
64         $dbh->{ChopBlanks} = 1;
65     }
66
67     $sth = $dbh->column_info();
68     foreach my $c (@{$sth->fetchall_arrayref({})}) {
69         $columns
70             ->{$c->{TABLE_SCHEM}}
71                 ->{$c->{TABLE_NAME}}
72                     ->{columns}
73                         ->{$c->{COLUMN_NAME}}= $c;
74     }
75
76     $sth = $dbh->table_info();
77
78     @tables   = @{$sth->fetchall_arrayref({})};
79
80     foreach my $table_info (@tables) {
81         next
82             unless (defined($table_info->{TABLE_TYPE}));
83
84         if ($table_info->{TABLE_TYPE} eq 'TABLE'&&
85             $table_info->{TABLE_SCHEM} eq 'public') {
86             my $table = $schema->add_table(
87                                            name => $table_info->{TABLE_NAME},
88                                            type => $table_info->{TABLE_TYPE},
89                                           ) || die $schema->error;
90
91
92             my $cols =
93                 $columns->{$table_info->{TABLE_SCHEM}}
94                         ->{$table_info->{TABLE_NAME}}
95                             ->{columns};
96
97             foreach my $c (values %{$cols}) {
98                 my $f = $table->add_field(
99                                           name        => $c->{COLUMN_NAME},
100                                           data_type   => $c->{TYPE_NAME},
101                                           order       => $c->{ORDINAL_POSITION},
102                                           size        => $c->{COLUMN_SIZE},
103                                          ) || die $table->error;
104
105                 $f->is_nullable(1)
106                     if ($c->{NULLABLE} == 1);
107             }
108         }
109     }
110
111     return 1;
112 }
113
114 1;
115
116 # -------------------------------------------------------------------
117 # Where man is not nature is barren.
118 # William Blake
119 # -------------------------------------------------------------------
120
121 =pod
122
123 =head1 AUTHOR
124
125 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
126
127 =head1 SEE ALSO
128
129 perl(1), Parse::RecDescent, SQL::Translator::Schema.
130
131 =cut