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1 | package SQL::Translator::Producer::SQLServer; |
2 | |
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3 | =head1 NAME |
4 | |
5 | SQL::Translator::Producer::SQLServer - MS SQLServer producer for SQL::Translator |
6 | |
7 | =head1 SYNOPSIS |
8 | |
9 | use SQL::Translator; |
10 | |
11 | my $t = SQL::Translator->new( parser => '...', producer => 'SQLServer' ); |
12 | $t->translate; |
13 | |
14 | =head1 DESCRIPTION |
15 | |
16 | B<WARNING>B This is still fairly early code, basically a hacked version of the |
17 | Sybase Producer (thanks Sam, Paul and Ken for doing the real work ;-) |
18 | |
19 | =head1 Extra Attributes |
20 | |
21 | =over 4 |
22 | |
23 | =item field.list |
24 | |
25 | List of values for an enum field. |
26 | |
27 | =back |
28 | |
29 | =head1 TODO |
30 | |
31 | * !! Write some tests !! |
32 | * Reserved words list needs updating to SQLServer. |
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33 | * Triggers, Procedures and Views DO NOT WORK |
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34 | |
35 | =cut |
36 | |
37 | use strict; |
f27f9229 |
38 | use warnings; |
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39 | our ( $DEBUG, $WARN ); |
40 | our $VERSION = '1.59'; |
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41 | $DEBUG = 1 unless defined $DEBUG; |
42 | |
43 | use Data::Dumper; |
44 | use SQL::Translator::Schema::Constants; |
45 | use SQL::Translator::Utils qw(debug header_comment); |
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46 | use SQL::Translator::Generator::Utils; |
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47 | use SQL::Translator::Generator::DDL::SQLServer; |
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48 | |
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49 | my $util = SQL::Translator::Generator::Utils->new( quote_chars => ['[', ']'] ); |
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50 | my $future = SQL::Translator::Generator::DDL::SQLServer->new(); |
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51 | |
52 | my %translate = ( |
53 | date => 'datetime', |
54 | 'time' => 'datetime', |
55 | # Sybase types |
56 | #integer => 'numeric', |
57 | #int => 'numeric', |
58 | #number => 'numeric', |
59 | #money => 'money', |
60 | #varchar => 'varchar', |
61 | #varchar2 => 'varchar', |
62 | #timestamp => 'datetime', |
63 | #text => 'varchar', |
64 | #real => 'double precision', |
65 | #comment => 'text', |
66 | #bit => 'bit', |
67 | #tinyint => 'smallint', |
68 | #float => 'double precision', |
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69 | #serial => 'numeric', |
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70 | #boolean => 'varchar', |
71 | #char => 'char', |
72 | #long => 'varchar', |
73 | ); |
74 | |
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75 | # If these datatypes have size appended the sql fails. |
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76 | my @no_size = qw/tinyint smallint int integer bigint text bit image datetime/; |
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77 | |
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78 | my $max_id_length = 128; |
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79 | my %global_names; |
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80 | |
81 | =pod |
82 | |
83 | =head1 SQLServer Create Table Syntax |
84 | |
85 | TODO |
86 | |
87 | =cut |
88 | |
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89 | sub produce { |
90 | my $translator = shift; |
91 | $DEBUG = $translator->debug; |
92 | $WARN = $translator->show_warnings; |
93 | my $no_comments = $translator->no_comments; |
94 | my $add_drop_table = $translator->add_drop_table; |
95 | my $schema = $translator->schema; |
96 | |
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97 | %global_names = (); #reset |
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98 | |
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99 | my $output; |
100 | $output .= header_comment."\n" unless ($no_comments); |
101 | |
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102 | # Generate the DROP statements. |
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103 | if ($add_drop_table) { |
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104 | my @tables = sort { $b->order <=> $a->order } $schema->get_tables; |
105 | $output .= "--\n-- Turn off constraints\n--\n\n" unless $no_comments; |
106 | foreach my $table (@tables) { |
107 | my $name = $table->name; |
108 | my $q_name = unreserve($name); |
109 | $output .= "IF EXISTS (SELECT name FROM sysobjects WHERE name = '$name' AND type = 'U') ALTER TABLE $q_name NOCHECK CONSTRAINT all;\n" |
110 | } |
111 | $output .= "\n"; |
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112 | $output .= "--\n-- Drop tables\n--\n\n" unless $no_comments; |
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113 | foreach my $table (@tables) { |
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114 | my $name = $table->name; |
115 | my $q_name = unreserve($name); |
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116 | $output .= "IF EXISTS (SELECT name FROM sysobjects WHERE name = '$name' AND type = 'U') DROP TABLE $q_name;\n" |
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117 | } |
118 | } |
119 | |
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120 | # these need to be added separately, as tables may not exist yet |
121 | my @foreign_constraints = (); |
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122 | |
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123 | for my $table ( grep { $_->name } $schema->get_tables ) { |
124 | my $table_name_ur = unreserve($table->name); |
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125 | |
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126 | my ( @comments ); |
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127 | |
128 | push @comments, "\n\n--\n-- Table: $table_name_ur\n--" |
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129 | unless $no_comments; |
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130 | |
131 | push @comments, map { "-- $_" } $table->comments; |
132 | |
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133 | push @foreign_constraints, map $future->foreign_key_constraint($_), |
134 | grep { $_->type eq FOREIGN_KEY } $table->get_constraints; |
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135 | |
136 | $output .= join( "\n\n", |
137 | @comments, |
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138 | qq[CREATE TABLE $table_name_ur (\n]. |
139 | join( ",\n", |
140 | map { " $_" } |
141 | # field defs |
142 | ( map $future->field($_), $table->get_fields ), |
143 | # constraint defs |
144 | (map $future->enum_constraint($_->name, { $_->extra }->{list} || []), |
145 | grep { 'enum' eq lc $_->data_type } $table->get_fields), |
146 | |
147 | (map $future->primary_key_constraint($_), |
148 | grep { $_->type eq PRIMARY_KEY } $table->get_constraints), |
149 | |
150 | (map $future->unique_constraint_single($_), |
151 | grep { |
152 | $_->type eq UNIQUE && |
153 | !grep { $_->is_nullable } $_->fields |
154 | } $table->get_constraints), |
155 | ). |
156 | "\n);", |
157 | # index defs |
158 | (map $future->unique_constraint_multiple($_), |
159 | grep { |
160 | $_->type eq UNIQUE && |
161 | grep { $_->is_nullable } $_->fields |
162 | } $table->get_constraints), |
163 | |
164 | (map $future->index($_), $table->get_indices) |
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165 | ); |
166 | } |
167 | |
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168 | # Add FK constraints |
169 | $output .= join ("\n", '', @foreign_constraints) if @foreign_constraints; |
170 | |
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171 | # create view/procedure are NOT prepended to the input $sql, needs |
172 | # to be filled in with the proper syntax |
173 | |
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174 | return $output; |
175 | } |
176 | |
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177 | =pod |
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178 | |
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179 | # Text of view is already a 'create view' statement so no need to |
180 | # be fancy |
181 | foreach ( $schema->get_views ) { |
182 | my $name = $_->name(); |
183 | $output .= "\n\n"; |
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184 | $output .= "--\n-- View: $name\n--\n\n" unless $no_comments; |
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185 | my $text = $_->sql(); |
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186 | $text =~ s/\r//g; |
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187 | $output .= "$text\nGO\n"; |
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188 | } |
189 | |
190 | # Text of procedure already has the 'create procedure' stuff |
191 | # so there is no need to do anything fancy. However, we should |
192 | # think about doing fancy stuff with granting permissions and |
193 | # so on. |
194 | foreach ( $schema->get_procedures ) { |
195 | my $name = $_->name(); |
196 | $output .= "\n\n"; |
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197 | $output .= "--\n-- Procedure: $name\n--\n\n" unless $no_comments; |
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198 | my $text = $_->sql(); |
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199 | $text =~ s/\r//g; |
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200 | $output .= "$text\nGO\n"; |
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201 | } |
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202 | =cut |
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203 | |
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204 | sub mk_name { |
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205 | my ($name, $scope, $critical) = @_; |
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206 | |
207 | $scope ||= \%global_names; |
208 | if ( my $prev = $scope->{ $name } ) { |
209 | my $name_orig = $name; |
210 | $name .= sprintf( "%02d", ++$prev ); |
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211 | substr($name, $max_id_length - 3) = "00" |
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212 | if length( $name ) > $max_id_length; |
213 | |
214 | warn "The name '$name_orig' has been changed to ", |
215 | "'$name' to make it unique.\n" if $WARN; |
216 | |
217 | $scope->{ $name_orig }++; |
218 | } |
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219 | $name = substr( $name, 0, $max_id_length ) |
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220 | if ((length( $name ) > $max_id_length) && $critical); |
221 | $scope->{ $name }++; |
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222 | return unreserve($name); |
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223 | } |
224 | |
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225 | sub unreserve { $util->quote($_[0]) } |
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226 | |
227 | 1; |
228 | |
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229 | =pod |
230 | |
231 | =head1 SEE ALSO |
232 | |
233 | SQL::Translator. |
234 | |
235 | =head1 AUTHORS |
236 | |
237 | Mark Addison E<lt>grommit@users.sourceforge.netE<gt> - Bulk of code from |
238 | Sybase producer, I just tweaked it for SQLServer. Thanks. |
239 | |
240 | =cut |