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1 | package SQL::Translator::Parser::DBI::PostgreSQL; |
2 | |
3 | # ------------------------------------------------------------------- |
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4 | # $Id: PostgreSQL.pm,v 1.4 2003-10-15 19:56:20 phrrngtn Exp $ |
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5 | # ------------------------------------------------------------------- |
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6 | # Copyright (C) 2003 Paul Harrington <harringp@deshaw.com>. |
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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 | |
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33 | Uses DBD::Pg 1.31 catalog methods to determine schema structure. |
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34 | |
35 | =cut |
36 | |
37 | use strict; |
38 | use DBI; |
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39 | use Data::Dumper; |
40 | use SQL::Translator::Schema::Constants; |
41 | |
42 | use vars qw[ $DEBUG $VERSION @EXPORT_OK ]; |
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43 | $VERSION = sprintf "%d.%02d", q$Revision: 1.4 $ =~ /(\d+)\.(\d+)/; |
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44 | $DEBUG = 0 unless defined $DEBUG; |
45 | |
46 | # ------------------------------------------------------------------- |
47 | sub parse { |
48 | my ( $tr, $dbh ) = @_; |
49 | |
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50 | my $schema = $tr->schema; |
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51 | |
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52 | my ($sth, @tables, $columns); |
53 | my $stuff; |
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54 | |
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55 | warn "DBD:Pg $DBD::Pg::VERSION is not likely to produce anything useful. Upgrade to 1.31 or better if available." |
56 | unless ($DBD::Pg::VERSION ge '1.31'); |
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57 | |
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58 | if ($dbh->{FetchHashKeyName} ne 'NAME_uc') { |
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59 | $dbh->{FetchHashKeyName} = 'NAME_uc'; |
60 | } |
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61 | |
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62 | if ($dbh->{ChopBlanks} != 1) { |
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63 | $dbh->{ChopBlanks} = 1; |
64 | } |
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65 | |
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66 | $sth = $dbh->column_info(); |
67 | foreach my $c (@{$sth->fetchall_arrayref({})}) { |
68 | $columns |
69 | ->{$c->{TABLE_SCHEM}} |
70 | ->{$c->{TABLE_NAME}} |
71 | ->{columns} |
72 | ->{$c->{COLUMN_NAME}}= $c; |
73 | } |
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74 | |
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75 | $sth = $dbh->table_info(); |
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76 | |
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77 | @tables = @{$sth->fetchall_arrayref({})}; |
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78 | |
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79 | foreach my $table_info (@tables) { |
80 | next |
81 | unless (defined($table_info->{TABLE_TYPE})); |
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82 | |
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83 | if ($table_info->{TABLE_TYPE} eq 'TABLE'&& |
84 | $table_info->{TABLE_SCHEM} eq 'public') { |
85 | my $table = $schema->add_table( |
86 | name => $table_info->{TABLE_NAME}, |
87 | type => $table_info->{TABLE_TYPE}, |
88 | ) || die $schema->error; |
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89 | |
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90 | |
91 | my $cols = |
92 | $columns->{$table_info->{TABLE_SCHEM}} |
93 | ->{$table_info->{TABLE_NAME}} |
94 | ->{columns}; |
95 | |
96 | foreach my $c (values %{$cols}) { |
97 | my $f = $table->add_field( |
98 | name => $c->{COLUMN_NAME}, |
99 | data_type => $c->{TYPE_NAME}, |
100 | order => $c->{ORDINAL_POSITION}, |
101 | size => $c->{COLUMN_SIZE}, |
102 | ) || die $table->error; |
103 | |
104 | $f->is_nullable(1) |
105 | if ($c->{NULLABLE} == 1); |
106 | } |
107 | } |
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108 | } |
109 | |
110 | return 1; |
111 | } |
112 | |
113 | 1; |
114 | |
115 | # ------------------------------------------------------------------- |
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116 | # Time is a waste of money. |
117 | # Oscar Wilde |
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118 | # ------------------------------------------------------------------- |
119 | |
120 | =pod |
121 | |
122 | =head1 AUTHOR |
123 | |
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124 | Paul Harrington E<lt>harringp@deshaw.comE<gt>. |
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125 | |
126 | =head1 SEE ALSO |
127 | |
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128 | SQL::Translator, DBD::Pg. |
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129 | |
130 | =cut |