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1 | package SQL::Translator::Producer::YAML; |
2 | |
3 | # ------------------------------------------------------------------- |
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4 | # Copyright (C) 2002-2009 SQLFairy Authors |
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5 | # |
6 | # This program is free software; you can redistribute it and/or |
7 | # modify it under the terms of the GNU General Public License as |
8 | # published by the Free Software Foundation; version 2. |
9 | # |
10 | # This program is distributed in the hope that it will be useful, but |
11 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | # General Public License for more details. |
14 | # |
15 | # You should have received a copy of the GNU General Public License |
16 | # along with this program; if not, write to the Free Software |
17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
18 | # 02111-1307 USA |
19 | # ------------------------------------------------------------------- |
20 | |
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21 | =head1 NAME |
22 | |
23 | SQL::Translator::Producer::YAML - A YAML producer for SQL::Translator |
24 | |
25 | =head1 SYNOPSIS |
26 | |
27 | use SQL::Translator; |
28 | |
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29 | my $translator = SQL::Translator->new(producer => 'YAML'); |
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30 | |
31 | =head1 DESCRIPTION |
32 | |
33 | This module uses YAML to serialize a schema to a string so that it |
34 | can be saved to disk. Serializing a schema and then calling producers |
35 | on the stored can realize significant performance gains when parsing |
36 | takes a long time. |
37 | |
38 | =cut |
39 | |
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40 | use strict; |
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41 | use vars qw($VERSION); |
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42 | $VERSION = '1.59'; |
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43 | |
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44 | use YAML qw(Dump); |
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45 | |
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46 | # ------------------------------------------------------------------- |
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47 | sub produce { |
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48 | my $translator = shift; |
49 | my $schema = $translator->schema; |
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50 | |
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51 | return Dump({ |
52 | schema => { |
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53 | tables => { |
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54 | map { ($_->name => view_table($_)) } |
55 | $schema->get_tables, |
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56 | }, |
57 | views => { |
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58 | map { ($_->name => view_view($_)) } |
59 | $schema->get_views, |
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60 | }, |
61 | triggers => { |
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62 | map { ($_->name => view_trigger($_)) } |
63 | $schema->get_triggers, |
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64 | }, |
65 | procedures => { |
66 | map { ($_->name => view_procedure($_)) } |
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67 | $schema->get_procedures, |
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68 | }, |
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69 | }, |
70 | translator => { |
71 | add_drop_table => $translator->add_drop_table, |
72 | filename => $translator->filename, |
73 | no_comments => $translator->no_comments, |
74 | parser_args => $translator->parser_args, |
75 | producer_args => $translator->producer_args, |
76 | parser_type => $translator->parser_type, |
77 | producer_type => $translator->producer_type, |
78 | show_warnings => $translator->show_warnings, |
79 | trace => $translator->trace, |
80 | version => $translator->version, |
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81 | } |
82 | }); |
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83 | } |
84 | |
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85 | # ------------------------------------------------------------------- |
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86 | sub view_table { |
87 | my $table = shift; |
88 | |
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89 | return { |
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90 | 'name' => $table->name, |
91 | 'order' => $table->order, |
92 | 'options' => $table->options || [], |
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93 | $table->comments ? ('comments' => $table->comments ) : (), |
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94 | 'constraints' => [ |
95 | map { view_constraint($_) } $table->get_constraints |
96 | ], |
97 | 'indices' => [ |
98 | map { view_index($_) } $table->get_indices |
99 | ], |
100 | 'fields' => { |
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101 | map { ($_->name => view_field($_)) } |
102 | $table->get_fields |
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103 | }, |
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104 | }; |
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105 | } |
106 | |
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107 | # ------------------------------------------------------------------- |
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108 | sub view_constraint { |
109 | my $constraint = shift; |
110 | |
111 | return { |
112 | 'deferrable' => scalar $constraint->deferrable, |
113 | 'expression' => scalar $constraint->expression, |
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114 | 'fields' => [ map { ref $_ ? $_->name : $_ } $constraint->field_names ], |
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115 | 'match_type' => scalar $constraint->match_type, |
116 | 'name' => scalar $constraint->name, |
117 | 'options' => scalar $constraint->options, |
118 | 'on_delete' => scalar $constraint->on_delete, |
119 | 'on_update' => scalar $constraint->on_update, |
120 | 'reference_fields' => scalar $constraint->reference_fields, |
121 | 'reference_table' => scalar $constraint->reference_table, |
122 | 'type' => scalar $constraint->type, |
123 | }; |
124 | } |
125 | |
126 | # ------------------------------------------------------------------- |
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127 | sub view_field { |
128 | my $field = shift; |
129 | |
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130 | return { |
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131 | 'order' => scalar $field->order, |
132 | 'name' => scalar $field->name, |
133 | 'data_type' => scalar $field->data_type, |
134 | 'size' => [ $field->size ], |
135 | 'default_value' => scalar $field->default_value, |
136 | 'is_nullable' => scalar $field->is_nullable, |
137 | 'is_primary_key' => scalar $field->is_primary_key, |
138 | 'is_unique' => scalar $field->is_unique, |
139 | $field->is_auto_increment ? ('is_auto_increment' => 1) : (), |
140 | $field->comments ? ('comments' => $field->comments) : (), |
141 | 'extra' => { $field->extra }, |
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142 | }; |
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143 | } |
144 | |
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145 | # ------------------------------------------------------------------- |
146 | sub view_procedure { |
147 | my $procedure = shift; |
148 | |
149 | return { |
150 | 'order' => scalar $procedure->order, |
151 | 'name' => scalar $procedure->name, |
152 | 'sql' => scalar $procedure->sql, |
153 | 'parameters' => scalar $procedure->parameters, |
154 | 'owner' => scalar $procedure->owner, |
155 | 'comments' => scalar $procedure->comments, |
156 | }; |
157 | } |
158 | |
159 | # ------------------------------------------------------------------- |
160 | sub view_trigger { |
161 | my $trigger = shift; |
162 | |
163 | return { |
164 | 'order' => scalar $trigger->order, |
165 | 'name' => scalar $trigger->name, |
166 | 'perform_action_when' => scalar $trigger->perform_action_when, |
167 | 'database_event' => scalar $trigger->database_event, |
168 | 'fields' => scalar $trigger->fields, |
169 | 'on_table' => scalar $trigger->on_table, |
170 | 'action' => scalar $trigger->action, |
171 | }; |
172 | } |
173 | |
174 | # ------------------------------------------------------------------- |
175 | sub view_view { |
176 | my $view = shift; |
177 | |
178 | return { |
179 | 'order' => scalar $view->order, |
180 | 'name' => scalar $view->name, |
181 | 'sql' => scalar $view->sql, |
182 | 'fields' => scalar $view->fields, |
183 | }; |
184 | } |
185 | |
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186 | # ------------------------------------------------------------------- |
187 | sub view_index { |
188 | my $index = shift; |
189 | |
190 | return { |
191 | 'name' => scalar $index->name, |
192 | 'type' => scalar $index->type, |
193 | 'fields' => scalar $index->fields, |
194 | 'options' => scalar $index->options, |
195 | }; |
196 | } |
197 | |
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198 | 1; |
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199 | |
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200 | # ------------------------------------------------------------------- |
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201 | |
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202 | =head1 SEE ALSO |
203 | |
204 | SQL::Translator, YAML, http://www.yaml.org/. |
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205 | |
206 | =head1 AUTHORS |
207 | |
208 | darren chamberlain E<lt>darren@cpan.orgE<gt>, |
209 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
210 | |
211 | =cut |