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1 | package SQL::Translator::Producer::ClassDBI; |
2 | |
3 | # ------------------------------------------------------------------- |
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4 | # $Id: ClassDBI.pm,v 1.2 2003-04-19 01:32:27 kycl4rk Exp $ |
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5 | # ------------------------------------------------------------------- |
6 | # Copyright (C) 2003 Ying Zhang <zyolive@yahoo.com>, |
7 | # Allen Day <allenday@ucla.edu>, |
8 | # |
9 | # This program is free software; you can redistribute it and/or |
10 | # modify it under the terms of the GNU General Public License as |
11 | # published by the Free Software Foundation; version 2. |
12 | # |
13 | # This program is distributed in the hope that it will be useful, but |
14 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | # General Public License for more details. |
17 | # |
18 | # You should have received a copy of the GNU General Public License |
19 | # along with this program; if not, write to the Free Software |
20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
21 | # 02111-1307 USA |
22 | # ------------------------------------------------------------------- |
23 | |
24 | use strict; |
25 | use vars qw[ $VERSION $DEBUG ]; |
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26 | $VERSION = sprintf "%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/; |
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27 | $DEBUG = 1 unless defined $DEBUG; |
28 | |
29 | use Data::Dumper; |
30 | |
31 | sub produce { |
32 | my ($translator, $data) = @_; |
33 | $DEBUG = $translator->debug; |
34 | my $no_comments = $translator->no_comments; |
35 | |
36 | my $create; |
37 | unless ( $no_comments ) { |
38 | $create .= sprintf "##\n## Created by %s\n## Created on %s\n##\n\n", |
39 | __PACKAGE__, scalar localtime; |
40 | } |
41 | |
42 | $create .= "package " . $translator->format_package_name('DBI'). ";\n\n"; |
43 | |
44 | $create .= "my \$USER = \'\';\n"; |
45 | $create .= "my \$PASS = \'\';\n\n"; |
46 | |
47 | my $from = _from($translator->parser_type()); |
48 | |
49 | $create .= "use base \'Class::DBI::" .$from. "\';\n\n"; |
50 | |
51 | $create .= $translator->format_package_name('DBI'). "->set_db(\'Main', \'dbi:" .$from. ":_\', \$USER,\$PASS,);\n\n"; |
52 | $create .= "1;\n\n\n"; |
53 | |
54 | for my $table (keys %{$data}) { |
55 | my $table_data = $data->{$table}; |
56 | my @fields = keys %{$table_data->{'fields'}}; |
57 | |
58 | |
59 | $create .= "##\n## Package:" .$translator->format_package_name($table). "\n##\n" unless $no_comments; |
60 | $create .= "package ". $translator->format_package_name($table). ";\n"; |
61 | |
62 | $create .= "use base \'Chado::DBI\';\n"; |
63 | $create .= "use mixin \'Class::DBI::Join\';\n"; |
64 | $create .= "use Class::DBI::Pager;\n\n"; |
65 | |
66 | $create .= $translator->format_package_name($table). " -> set_up_table('$table');\n\n"; |
67 | |
68 | |
69 | |
70 | # |
71 | # Primary key? |
72 | # |
73 | my @constraints; |
74 | |
75 | for my $constraint ( @{ $table_data->{'constraints'} } ) { |
76 | #my $name = $constraint->{'name'} || ''; |
77 | my $type = $constraint->{'type'}; |
78 | my $fields = $constraint->{'fields'}; |
79 | my $ref_table = $constraint->{'reference_table'}; |
80 | my $ref_fields = $constraint->{'reference_fields'}; |
81 | |
82 | if ( $type eq 'primary_key') { |
83 | $create .= "sub " .$translator->format_pk_name($translator->format_package_name($table), $fields[0]). "{ shift -> $fields[0] }\n\n"; |
84 | } |
85 | |
86 | } |
87 | |
88 | # |
89 | # Foreign key? |
90 | # |
91 | for (my $i = 0; $i < scalar(@fields); $i++) { |
92 | my $field = $fields[$i]; |
93 | my $field_data = $table_data->{'fields'}->{$field}->{'constraints'}; |
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94 | my $type = $field_data->[1]->{'type'} || ''; |
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95 | my $ref_table = $field_data->[1]->{'reference_table'}; |
96 | my $ref_fields = $field_data->[1]->{'reference_fields'}; |
97 | |
98 | if ($type eq 'foreign_key') { |
99 | $create .= $translator->format_package_name($table). " -> hasa(" .$translator->format_package_name($ref_table). " => \'@$ref_fields\');\n"; |
100 | $create .= "sub " .$translator->format_fk_name($ref_table, @$ref_fields). "{ return shift -> @$ref_fields }\n\n"; |
101 | } |
102 | } |
103 | |
104 | $create .= "1;\n\n\n"; |
105 | } |
106 | |
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107 | open( FILE, '>DBI.pm') or die( "Can't open file : $!"); |
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108 | print ( FILE $create); |
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109 | close ( FILE ) or die( "Can't close file : $!"); |
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110 | |
111 | } |
112 | |
113 | |
114 | sub _from { |
115 | my $from = shift; |
116 | my @temp = split(/::/, $from); |
117 | $from = $temp[$#temp]; |
118 | |
119 | if ( $from eq 'MySQL') { |
120 | $from = lc($from); |
121 | } elsif ( $from eq 'PostgreSQL') { |
122 | $from = 'Pg'; |
123 | } elsif ( $from eq 'Oracle') { |
124 | |
125 | } else { |
126 | print "Eoorr\n"; |
127 | } |
128 | |
129 | return $from; |
130 | } |
131 | |
132 | 1; |
133 | |
134 | __END__ |
135 | |
136 | =head1 NAME |
137 | |
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138 | SQL::Translator::Producer::ClassDBI - Translate SQL schemata into Class::DBI classes |
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139 | |
140 | =head1 SYNOPSIS |
141 | |
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142 | Use this producer as you would any other from SQL::Translator. See |
143 | L<SQL::Translator> for details. |
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144 | |
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145 | This package utilizes SQL::Translator's formatting methods |
146 | format_package_name(), format_pk_name(), format_fk_name(), and |
147 | format_table_name() as it creates classes, one per table in the schema |
148 | provided. An additional base class is also created for database connectivity |
149 | configuration. See L<Class::DBI> for details on how this works. |
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150 | |
151 | =head1 AUTHOR |
152 | |
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153 | Ying Zhang <zyolive@yahoo.com>, Allen Day <allenday@ucla.edu> |