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1 | package SQL::Translator::Producer::SQLServer; |
2 | |
7a0ceaa1 |
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. |
e2fb9ad3 |
33 | * Triggers, Procedures and Views DO NOT WORK |
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34 | |
35 | =cut |
36 | |
37 | use strict; |
f27f9229 |
38 | use warnings; |
0c04c5a2 |
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); |
fd9f0e09 |
46 | use SQL::Translator::Generator::Utils; |
c661b77d |
47 | use SQL::Translator::Generator::DDL::SQLServer; |
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48 | |
fd9f0e09 |
49 | my $util = SQL::Translator::Generator::Utils->new( quote_chars => ['[', ']'] ); |
c661b77d |
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. |
3e0bcbfd |
76 | my @no_size = qw/tinyint smallint int integer bigint text bit image datetime/; |
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77 | |
3e0bcbfd |
78 | my $max_id_length = 128; |
7a0ceaa1 |
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 | |
7a0ceaa1 |
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 | |
d02c3cd2 |
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; |
d02c3cd2 |
113 | foreach my $table (@tables) { |
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114 | my $name = $table->name; |
115 | my $q_name = unreserve($name); |
d02c3cd2 |
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 | |
120 | # Generate the CREATE sql |
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121 | |
122 | my @foreign_constraints = (); # these need to be added separately, as tables may not exist yet |
123 | |
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124 | for my $table ( $schema->get_tables ) { |
125 | my $table_name = $table->name or next; |
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126 | my $table_name_ur = unreserve($table_name) || ''; |
127 | |
128 | my ( @comments, @field_defs, @index_defs, @constraint_defs ); |
129 | |
130 | push @comments, "\n\n--\n-- Table: $table_name_ur\n--" |
131 | unless $no_comments; |
132 | |
133 | push @comments, map { "-- $_" } $table->comments; |
134 | |
135 | # |
136 | # Fields |
137 | # |
138 | my %field_name_scope; |
139 | for my $field ( $table->get_fields ) { |
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140 | my $field_name = $field->name; |
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141 | |
142 | # |
143 | # Datatype |
144 | # |
145 | my $data_type = lc $field->data_type; |
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146 | my %extra = $field->extra; |
147 | my $list = $extra{'list'} || []; |
148 | # \todo deal with embedded quotes |
149 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
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150 | |
151 | if ( $data_type eq 'enum' ) { |
e2fb9ad3 |
152 | my $check_name = mk_name( $field_name . '_chk' ); |
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153 | push @constraint_defs, |
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154 | "CONSTRAINT $check_name CHECK ($field_name IN ($commalist))"; |
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155 | $data_type .= 'character varying'; |
156 | } |
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157 | |
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158 | push @field_defs, $future->field($field); |
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159 | } |
160 | |
161 | # |
162 | # Constraint Declarations |
163 | # |
164 | my @constraint_decs = (); |
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165 | for my $constraint ( $table->get_constraints ) { |
166 | my $name = $constraint->name || ''; |
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167 | my $name_ur = unreserve($name); |
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168 | # Make sure we get a unique name |
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169 | my $type = $constraint->type || NORMAL; |
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170 | my @fields = map { unreserve( $_ ) } |
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171 | $constraint->fields; |
0a6e5a56 |
172 | my @rfields = map { unreserve( $_ ) } |
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173 | $constraint->reference_fields; |
174 | next unless @fields; |
175 | |
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176 | my $c_def; |
f9a5ee79 |
177 | if ( $type eq FOREIGN_KEY ) { |
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178 | $name ||= mk_name( $table_name . '_fk' ); |
5bac76bc |
179 | my $on_delete = uc ($constraint->on_delete || ''); |
180 | my $on_update = uc ($constraint->on_update || ''); |
181 | |
182 | # The default implicit constraint action in MSSQL is RESTRICT |
183 | # but you can not specify it explicitly. Go figure :) |
184 | for ($on_delete, $on_update) { |
185 | undef $_ if $_ eq 'RESTRICT' |
186 | } |
187 | |
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188 | $c_def = |
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189 | "ALTER TABLE $table_name_ur ADD CONSTRAINT $name_ur FOREIGN KEY". |
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190 | ' (' . join( ', ', @fields ) . ') REFERENCES '. |
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191 | unreserve($constraint->reference_table). |
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192 | ' (' . join( ', ', @rfields ) . ')' |
193 | ; |
194 | |
5bac76bc |
195 | if ( $on_delete && $on_delete ne "NO ACTION") { |
196 | $c_def .= " ON DELETE $on_delete"; |
197 | } |
198 | if ( $on_update && $on_update ne "NO ACTION") { |
199 | $c_def .= " ON UPDATE $on_update"; |
200 | } |
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201 | |
202 | $c_def .= ";"; |
203 | |
204 | push @foreign_constraints, $c_def; |
205 | next; |
206 | } |
207 | |
208 | |
209 | if ( $type eq PRIMARY_KEY ) { |
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210 | $c_def = $future->primary_key_constraint($constraint) |
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211 | } |
212 | elsif ( $type eq UNIQUE ) { |
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213 | $name = $name_ur || mk_name( $table_name . '_uc' ); |
66444b41 |
214 | my @nullable = grep { $_->is_nullable } $constraint->fields; |
215 | if (!@nullable) { |
216 | $c_def = |
217 | "CONSTRAINT $name UNIQUE " . |
218 | '(' . join( ', ', @fields ) . ')'; |
219 | } else { |
220 | push @index_defs, |
221 | "CREATE UNIQUE NONCLUSTERED INDEX $name_ur ON $table_name_ur (" . |
222 | join( ', ', @fields ) . ')' . |
223 | ' WHERE ' . join( ' AND ', map unreserve($_->name) . ' IS NOT NULL', @nullable ) . ';'; |
224 | next; |
225 | } |
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226 | } |
04a180d6 |
227 | push @constraint_defs, $c_def; |
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228 | } |
229 | |
230 | # |
231 | # Indices |
232 | # |
233 | for my $index ( $table->get_indices ) { |
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234 | push @index_defs, $future->index($index) |
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235 | } |
236 | |
237 | my $create_statement = ""; |
238 | $create_statement .= qq[CREATE TABLE $table_name_ur (\n]. |
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239 | join( ",\n", |
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240 | map { " $_" } @field_defs, @constraint_defs |
241 | ). |
242 | "\n);" |
243 | ; |
244 | |
245 | $output .= join( "\n\n", |
246 | @comments, |
247 | $create_statement, |
248 | @index_defs, |
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249 | ); |
250 | } |
251 | |
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252 | # Add FK constraints |
253 | $output .= join ("\n", '', @foreign_constraints) if @foreign_constraints; |
254 | |
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255 | # create view/procedure are NOT prepended to the input $sql, needs |
256 | # to be filled in with the proper syntax |
257 | |
6fac033a |
258 | =pod |
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259 | |
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260 | # Text of view is already a 'create view' statement so no need to |
261 | # be fancy |
262 | foreach ( $schema->get_views ) { |
263 | my $name = $_->name(); |
264 | $output .= "\n\n"; |
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265 | $output .= "--\n-- View: $name\n--\n\n" unless $no_comments; |
3e0bcbfd |
266 | my $text = $_->sql(); |
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267 | $text =~ s/\r//g; |
5bb0a4ee |
268 | $output .= "$text\nGO\n"; |
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269 | } |
270 | |
271 | # Text of procedure already has the 'create procedure' stuff |
272 | # so there is no need to do anything fancy. However, we should |
273 | # think about doing fancy stuff with granting permissions and |
274 | # so on. |
275 | foreach ( $schema->get_procedures ) { |
276 | my $name = $_->name(); |
277 | $output .= "\n\n"; |
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278 | $output .= "--\n-- Procedure: $name\n--\n\n" unless $no_comments; |
3e0bcbfd |
279 | my $text = $_->sql(); |
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280 | $text =~ s/\r//g; |
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281 | $output .= "$text\nGO\n"; |
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282 | } |
e2fb9ad3 |
283 | =cut |
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284 | |
285 | return $output; |
286 | } |
287 | |
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288 | sub mk_name { |
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289 | my ($name, $scope, $critical) = @_; |
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290 | |
291 | $scope ||= \%global_names; |
292 | if ( my $prev = $scope->{ $name } ) { |
293 | my $name_orig = $name; |
294 | $name .= sprintf( "%02d", ++$prev ); |
028386aa |
295 | substr($name, $max_id_length - 3) = "00" |
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296 | if length( $name ) > $max_id_length; |
297 | |
298 | warn "The name '$name_orig' has been changed to ", |
299 | "'$name' to make it unique.\n" if $WARN; |
300 | |
301 | $scope->{ $name_orig }++; |
302 | } |
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303 | $name = substr( $name, 0, $max_id_length ) |
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304 | if ((length( $name ) > $max_id_length) && $critical); |
305 | $scope->{ $name }++; |
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306 | return unreserve($name); |
7a0ceaa1 |
307 | } |
308 | |
f3fccb75 |
309 | sub unreserve { $util->quote($_[0]) } |
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310 | |
311 | 1; |
312 | |
7a0ceaa1 |
313 | =pod |
314 | |
315 | =head1 SEE ALSO |
316 | |
317 | SQL::Translator. |
318 | |
319 | =head1 AUTHORS |
320 | |
321 | Mark Addison E<lt>grommit@users.sourceforge.netE<gt> - Bulk of code from |
322 | Sybase producer, I just tweaked it for SQLServer. Thanks. |
323 | |
324 | =cut |