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1 | package SQL::Translator::Producer::YAML; |
2 | |
3 | # ------------------------------------------------------------------- |
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4 | # $Id: YAML.pm,v 1.5 2003-10-15 19:19:13 kycl4rk Exp $ |
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5 | # ------------------------------------------------------------------- |
6 | # Copyright (C) 2003 darren chamberlain <darren@cpan.org>, |
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7 | # Ken Y. Clark <kclark@cpan.org>. |
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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 | |
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24 | =head1 NAME |
25 | |
26 | SQL::Translator::Producer::YAML - A YAML producer for SQL::Translator |
27 | |
28 | =head1 SYNOPSIS |
29 | |
30 | use SQL::Translator; |
31 | |
32 | my $translator = SQL::Translator->new; |
33 | $translator->producer('YAML'); |
34 | |
35 | =head1 DESCRIPTION |
36 | |
37 | This module uses YAML to serialize a schema to a string so that it |
38 | can be saved to disk. Serializing a schema and then calling producers |
39 | on the stored can realize significant performance gains when parsing |
40 | takes a long time. |
41 | |
42 | =cut |
43 | |
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44 | use strict; |
45 | use vars qw($VERSION); |
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46 | $VERSION = sprintf "%d.%02d", q$Revision: 1.5 $ =~ /(\d+)\.(\d+)/; |
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47 | |
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48 | use YAML qw(Dump); |
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49 | |
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50 | # ------------------------------------------------------------------- |
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51 | sub produce { |
52 | my $translator = shift; |
53 | my $schema = $translator->schema; |
54 | |
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55 | return Dump({ |
56 | schema => { |
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57 | tables => { |
58 | map { ($_->name => view_table($_)) } $schema->get_tables, |
59 | }, |
60 | views => { |
61 | map { ($_->name => view_view($_)) } $schema->get_views, |
62 | }, |
63 | triggers => { |
64 | map { ($_->name => view_trigger($_)) } $schema->get_triggers, |
65 | }, |
66 | procedures => { |
67 | map { ($_->name => view_procedure($_)) } |
68 | $schema->get_procedures, |
69 | }, |
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70 | } |
71 | }); |
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72 | } |
73 | |
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74 | # ------------------------------------------------------------------- |
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75 | sub view_table { |
76 | my $table = shift; |
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77 | my $name = $table->name; |
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78 | |
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79 | return { |
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80 | 'name' => $table->name, |
81 | 'order' => $table->order, |
82 | 'options' => $table->options || [], |
83 | 'comments' => $table->comments || '', |
84 | 'fields' => { |
85 | map { ($_->name => view_field($_)) } $table->get_fields |
86 | }, |
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87 | }; |
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88 | } |
89 | |
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90 | # ------------------------------------------------------------------- |
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91 | sub view_field { |
92 | my $field = shift; |
93 | |
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94 | return { |
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95 | 'order' => scalar $field->order, |
96 | 'name' => scalar $field->name, |
97 | 'data_type' => scalar $field->data_type, |
98 | 'size' => [ $field->size ], |
99 | 'default_value' => scalar $field->default_value, |
100 | 'is_nullable' => scalar $field->is_nullable, |
101 | 'is_primary_key' => scalar $field->is_primary_key, |
102 | 'is_unique' => scalar $field->is_unique, |
103 | 'extra' => { $field->extra }, |
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104 | }; |
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105 | } |
106 | |
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107 | # ------------------------------------------------------------------- |
108 | sub view_procedure { |
109 | my $procedure = shift; |
110 | |
111 | return { |
112 | 'order' => scalar $procedure->order, |
113 | 'name' => scalar $procedure->name, |
114 | 'sql' => scalar $procedure->sql, |
115 | 'parameters' => scalar $procedure->parameters, |
116 | 'owner' => scalar $procedure->owner, |
117 | 'comments' => scalar $procedure->comments, |
118 | }; |
119 | } |
120 | |
121 | # ------------------------------------------------------------------- |
122 | sub view_trigger { |
123 | my $trigger = shift; |
124 | |
125 | return { |
126 | 'order' => scalar $trigger->order, |
127 | 'name' => scalar $trigger->name, |
128 | 'perform_action_when' => scalar $trigger->perform_action_when, |
129 | 'database_event' => scalar $trigger->database_event, |
130 | 'fields' => scalar $trigger->fields, |
131 | 'on_table' => scalar $trigger->on_table, |
132 | 'action' => scalar $trigger->action, |
133 | }; |
134 | } |
135 | |
136 | # ------------------------------------------------------------------- |
137 | sub view_view { |
138 | my $view = shift; |
139 | |
140 | return { |
141 | 'order' => scalar $view->order, |
142 | 'name' => scalar $view->name, |
143 | 'sql' => scalar $view->sql, |
144 | 'fields' => scalar $view->fields, |
145 | }; |
146 | } |
147 | |
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148 | 1; |
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149 | |
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150 | # ------------------------------------------------------------------- |
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151 | |
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152 | =head1 SEE ALSO |
153 | |
154 | SQL::Translator, YAML, http://www.yaml.org/. |
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155 | |
156 | =head1 AUTHORS |
157 | |
158 | darren chamberlain E<lt>darren@cpan.orgE<gt>, |
159 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
160 | |
161 | =cut |