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1 | package SQL::Translator::Producer::Oracle; |
2 | |
077ebf34 |
3 | # ------------------------------------------------------------------- |
cd617ba8 |
4 | # $Id: Oracle.pm,v 1.15 2003-08-04 21:04:04 kycl4rk Exp $ |
077ebf34 |
5 | # ------------------------------------------------------------------- |
abfa405a |
6 | # Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>, |
7 | # darren chamberlain <darren@cpan.org>, |
8 | # Chris Mungall <cjm@fruitfly.org> |
16dc9970 |
9 | # |
077ebf34 |
10 | # This program is free software; you can redistribute it and/or |
11 | # modify it under the terms of the GNU General Public License as |
12 | # published by the Free Software Foundation; version 2. |
13 | # |
14 | # This program is distributed in the hope that it will be useful, but |
15 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | # General Public License for more details. |
18 | # |
19 | # You should have received a copy of the GNU General Public License |
20 | # along with this program; if not, write to the Free Software |
21 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
22 | # 02111-1307 USA |
23 | # ------------------------------------------------------------------- |
24 | |
16dc9970 |
25 | use strict; |
96844cae |
26 | use vars qw[ $VERSION $DEBUG $WARN ]; |
cd617ba8 |
27 | $VERSION = sprintf "%d.%02d", q$Revision: 1.15 $ =~ /(\d+)\.(\d+)/; |
d529894e |
28 | $DEBUG = 0 unless defined $DEBUG; |
16dc9970 |
29 | |
57f77285 |
30 | use SQL::Translator::Schema::Constants; |
5ee19df8 |
31 | use SQL::Translator::Utils qw(header_comment); |
32 | |
16dc9970 |
33 | my %translate = ( |
d529894e |
34 | # |
35 | # MySQL types |
36 | # |
16dc9970 |
37 | bigint => 'number', |
38 | double => 'number', |
39 | decimal => 'number', |
40 | float => 'number', |
41 | int => 'number', |
42 | mediumint => 'number', |
43 | smallint => 'number', |
44 | tinyint => 'number', |
16dc9970 |
45 | char => 'char', |
16dc9970 |
46 | varchar => 'varchar2', |
16dc9970 |
47 | tinyblob => 'CLOB', |
48 | blob => 'CLOB', |
49 | mediumblob => 'CLOB', |
50 | longblob => 'CLOB', |
16dc9970 |
51 | longtext => 'long', |
52 | mediumtext => 'long', |
53 | text => 'long', |
54 | tinytext => 'long', |
16dc9970 |
55 | enum => 'varchar2', |
56 | set => 'varchar2', |
16dc9970 |
57 | date => 'date', |
58 | datetime => 'date', |
59 | time => 'date', |
60 | timestamp => 'date', |
61 | year => 'date', |
d529894e |
62 | |
63 | # |
64 | # PostgreSQL types |
65 | # |
57f77285 |
66 | numeric => 'number', |
67 | 'double precision' => 'number', |
68 | serial => 'number', |
69 | bigserial => 'number', |
70 | money => 'number', |
71 | character => 'char', |
72 | 'character varying' => 'varchar2', |
73 | bytea => 'BLOB', |
74 | interval => 'number', |
75 | boolean => 'number', |
76 | point => 'number', |
77 | line => 'number', |
78 | lseg => 'number', |
79 | box => 'number', |
80 | path => 'number', |
81 | polygon => 'number', |
82 | circle => 'number', |
83 | cidr => 'number', |
84 | inet => 'varchar2', |
85 | macaddr => 'varchar2', |
86 | bit => 'number', |
87 | 'bit varying' => 'number', |
d529894e |
88 | ); |
89 | |
90 | # |
91 | # Oracle reserved words from: |
92 | # http://technet.oracle.com/docs/products/oracle8i/doc_library/\ |
93 | # 817_doc/server.817/a85397/ap_keywd.htm |
94 | # |
96844cae |
95 | my %ora_reserved = map { $_, 1 } qw( |
d529894e |
96 | ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT |
97 | BETWEEN BY |
98 | CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT |
99 | DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP |
100 | ELSE EXCLUSIVE EXISTS |
101 | FILE FLOAT FOR FROM |
102 | GRANT GROUP |
103 | HAVING |
104 | IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT |
105 | INTEGER INTERSECT INTO IS |
106 | LEVEL LIKE LOCK LONG |
107 | MAXEXTENTS MINUS MLSLABEL MODE MODIFY |
108 | NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER |
109 | OF OFFLINE ON ONLINE OPTION OR ORDER |
110 | PCTFREE PRIOR PRIVILEGES PUBLIC |
111 | RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS |
112 | SELECT SESSION SET SHARE SIZE SMALLINT START |
113 | SUCCESSFUL SYNONYM SYSDATE |
114 | TABLE THEN TO TRIGGER |
115 | UID UNION UNIQUE UPDATE USER |
116 | VALIDATE VALUES VARCHAR VARCHAR2 VIEW |
117 | WHENEVER WHERE WITH |
16dc9970 |
118 | ); |
119 | |
96844cae |
120 | my $max_id_length = 30; |
121 | my %used_identifiers = (); |
d529894e |
122 | my %global_names; |
123 | my %unreserve; |
124 | my %truncated; |
16dc9970 |
125 | |
96844cae |
126 | # ------------------------------------------------------------------- |
077ebf34 |
127 | sub produce { |
a1d94525 |
128 | my $translator = shift; |
129 | $DEBUG = $translator->debug; |
130 | $WARN = $translator->show_warnings; |
131 | my $no_comments = $translator->no_comments; |
132 | my $add_drop_table = $translator->add_drop_table; |
133 | my $schema = $translator->schema; |
d529894e |
134 | my $output; |
44fcd0b5 |
135 | |
5ee19df8 |
136 | $output .= header_comment unless ($no_comments); |
077ebf34 |
137 | |
d529894e |
138 | if ( $translator->parser_type =~ /mysql/i ) { |
139 | $output .= |
140 | "-- We assume that default NLS_DATE_FORMAT has been changed\n". |
141 | "-- but we set it here anyway to be self-consistent.\n". |
142 | "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n"; |
143 | } |
16dc9970 |
144 | |
145 | # |
146 | # Print create for each table |
147 | # |
57f77285 |
148 | for my $table ( $schema->get_tables ) { |
149 | my $table_name = $table->name or next; |
44fcd0b5 |
150 | $table_name = mk_name( $table_name, '', undef, 1 ); |
57f77285 |
151 | my $table_name_ur = unreserve($table_name) or next; |
16dc9970 |
152 | |
57f77285 |
153 | my ( @comments, @field_defs, @trigger_defs, @constraint_defs ); |
16dc9970 |
154 | |
44fcd0b5 |
155 | push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments; |
16dc9970 |
156 | |
f6195129 |
157 | my ( %field_name_scope, @field_comments ); |
57f77285 |
158 | for my $field ( $table->get_fields ) { |
16dc9970 |
159 | # |
160 | # Field name |
161 | # |
44fcd0b5 |
162 | my $field_name = mk_name( |
57f77285 |
163 | $field->name, '', \%field_name_scope, 1 |
44fcd0b5 |
164 | ); |
165 | my $field_name_ur = unreserve( $field_name, $table_name ); |
57f77285 |
166 | my $field_def = $field_name_ur; |
16dc9970 |
167 | |
168 | # |
169 | # Datatype |
170 | # |
44fcd0b5 |
171 | my $check; |
57f77285 |
172 | my $data_type = lc $field->data_type; |
173 | my @size = $field->size; |
174 | my %extra = $field->extra; |
175 | my $list = $extra{'list'} || []; |
44fcd0b5 |
176 | my $commalist = join ",", @$list; |
177 | |
178 | if ( $data_type eq 'enum' ) { |
44fcd0b5 |
179 | $check = "CHECK ($field_name IN ($commalist))"; |
57f77285 |
180 | $data_type = 'varchar2'; |
44fcd0b5 |
181 | } |
182 | elsif ( $data_type eq 'set' ) { |
183 | # XXX add a CHECK constraint maybe |
184 | # (trickier and slower, than enum :) |
57f77285 |
185 | $data_type = 'varchar2'; |
44fcd0b5 |
186 | } |
187 | else { |
188 | $data_type = defined $translate{ $data_type } ? |
189 | $translate{ $data_type } : |
190 | die "Unknown datatype: $data_type\n"; |
44fcd0b5 |
191 | } |
16dc9970 |
192 | |
57f77285 |
193 | $field_def .= " $data_type"; |
194 | if ( defined $size[0] && $size[0] > 0 ) { |
195 | $field_def .= '(' . join( ', ', @size ) . ')'; |
196 | } |
197 | |
16dc9970 |
198 | # |
199 | # Default value |
200 | # |
57f77285 |
201 | my $default = $field->default_value; |
202 | if ( defined $default ) { |
203 | $field_def .= sprintf( |
16dc9970 |
204 | ' DEFAULT %s', |
57f77285 |
205 | $default =~ m/null/i ? 'NULL' : "'$default'" |
16dc9970 |
206 | ); |
207 | } |
208 | |
209 | # |
210 | # Not null constraint |
211 | # |
57f77285 |
212 | unless ( $field->is_nullable ) { |
44fcd0b5 |
213 | my $constraint_name = mk_name($field_name_ur, 'nn'); |
57f77285 |
214 | $field_def .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL'; |
16dc9970 |
215 | } |
216 | |
57f77285 |
217 | $field_def .= " $check" if $check; |
44fcd0b5 |
218 | |
16dc9970 |
219 | # |
220 | # Auto_increment |
221 | # |
57f77285 |
222 | if ( $field->is_auto_increment ) { |
44fcd0b5 |
223 | my $base_name = $table_name . "_". $field_name; |
224 | my $seq_name = mk_name( $base_name, 'sq' ); |
225 | my $trigger_name = mk_name( $base_name, 'ai' ); |
16dc9970 |
226 | |
57f77285 |
227 | push @trigger_defs, |
44fcd0b5 |
228 | "CREATE SEQUENCE $seq_name;\n" . |
d529894e |
229 | "CREATE OR REPLACE TRIGGER $trigger_name\n" . |
230 | "BEFORE INSERT ON $table_name\n" . |
44fcd0b5 |
231 | "FOR EACH ROW WHEN (\n" . |
232 | " new.$field_name_ur IS NULL". |
233 | " OR new.$field_name_ur = 0\n". |
234 | ")\n". |
d529894e |
235 | "BEGIN\n" . |
44fcd0b5 |
236 | " SELECT $seq_name.nextval\n" . |
57f77285 |
237 | " INTO :new." . $field->name."\n" . |
16dc9970 |
238 | " FROM dual;\n" . |
44fcd0b5 |
239 | "END;\n/"; |
16dc9970 |
240 | ; |
241 | } |
242 | |
57f77285 |
243 | if ( lc $field->data_type eq 'timestamp' ) { |
44fcd0b5 |
244 | my $base_name = $table_name . "_". $field_name_ur; |
96844cae |
245 | my $trig_name = mk_name( $base_name, 'ts' ); |
57f77285 |
246 | push @trigger_defs, |
44fcd0b5 |
247 | "CREATE OR REPLACE TRIGGER $trig_name\n". |
248 | "BEFORE INSERT OR UPDATE ON $table_name_ur\n". |
249 | "FOR EACH ROW WHEN (new.$field_name_ur} IS NULL)\n". |
250 | "BEGIN \n". |
251 | " SELECT sysdate INTO :new.$field_name_ur} FROM dual;\n". |
252 | "END;\n/"; |
253 | } |
254 | |
57f77285 |
255 | push @field_defs, $field_def; |
f6195129 |
256 | |
257 | if ( my $comment = $field->comments ) { |
258 | push @field_comments, |
259 | "COMMENT ON COLUMN $table_name.$field_name_ur is\n '". |
260 | $comment."';"; |
261 | } |
57f77285 |
262 | } |
263 | |
264 | # |
265 | # Table constraints |
266 | # |
267 | my $constraint_name_default; |
268 | for my $c ( $table->get_constraints ) { |
269 | my $name = $c->name || ''; |
270 | my @fields = map { unreserve( $_, $table_name ) } $c->fields; |
271 | my @rfields = map { unreserve( $_, $table_name ) } |
272 | $c->reference_fields; |
273 | next unless @fields; |
274 | |
275 | if ( $c->type eq PRIMARY_KEY ) { |
276 | $name ||= mk_name( $table_name, 'pk' ); |
277 | push @constraint_defs, "CONSTRAINT $name PRIMARY KEY ". |
278 | '(' . join( ', ', @fields ) . ')'; |
279 | } |
280 | elsif ( $c->type eq UNIQUE ) { |
281 | $name ||= mk_name( $table_name, ++$constraint_name_default ); |
282 | push @constraint_defs, "CONSTRAINT $name UNIQUE " . |
283 | '(' . join( ', ', @fields ) . ')'; |
284 | } |
285 | elsif ( $c->type eq FOREIGN_KEY ) { |
286 | $name ||= mk_name( $table_name, ++$constraint_name_default ); |
cd617ba8 |
287 | my $def = "CONSTRAINT $name FOREIGN KEY "; |
288 | |
289 | if ( @fields ) { |
290 | $def .= join( ', ', @fields ); |
291 | } |
292 | |
293 | $def .= ' REFERENCES ' . $c->reference_table; |
57f77285 |
294 | |
295 | if ( @rfields ) { |
296 | $def .= ' (' . join( ', ', @rfields ) . ')'; |
297 | } |
298 | |
299 | if ( $c->match_type ) { |
300 | $def .= ' MATCH ' . |
301 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
302 | } |
303 | |
304 | if ( $c->on_delete ) { |
305 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
306 | } |
307 | |
308 | if ( $c->on_update ) { |
309 | $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
310 | } |
311 | |
312 | push @constraint_defs, $def; |
313 | } |
16dc9970 |
314 | } |
315 | |
316 | # |
317 | # Index Declarations |
318 | # |
57f77285 |
319 | my @index_defs = (); |
44fcd0b5 |
320 | my $idx_name_default; |
57f77285 |
321 | for my $index ( $table->get_indices ) { |
322 | my $index_name = $index->name || ''; |
323 | my $index_type = $index->type || NORMAL; |
44fcd0b5 |
324 | my @fields = map { unreserve( $_, $table_name ) } |
57f77285 |
325 | $index->fields; |
44fcd0b5 |
326 | next unless @fields; |
16dc9970 |
327 | |
57f77285 |
328 | if ( $index_type eq PRIMARY_KEY ) { |
44fcd0b5 |
329 | $index_name = mk_name( $table_name, 'pk' ); |
57f77285 |
330 | push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '. |
16dc9970 |
331 | '(' . join( ', ', @fields ) . ')'; |
332 | } |
57f77285 |
333 | elsif ( $index_type eq UNIQUE ) { |
44fcd0b5 |
334 | $index_name = mk_name( |
335 | $table_name, $index_name || ++$idx_name_default |
336 | ); |
57f77285 |
337 | push @field_defs, 'CONSTRAINT ' . $index_name . ' UNIQUE ' . |
16dc9970 |
338 | '(' . join( ', ', @fields ) . ')'; |
339 | } |
340 | |
57f77285 |
341 | elsif ( $index_type eq NORMAL ) { |
44fcd0b5 |
342 | $index_name = mk_name( |
343 | $table_name, $index_name || ++$idx_name_default |
344 | ); |
57f77285 |
345 | push @index_defs, |
da8e499e |
346 | "CREATE INDEX $index_name on $table_name_ur (". |
347 | join( ', ', @fields ). |
348 | ");"; |
16dc9970 |
349 | } |
16dc9970 |
350 | else { |
96844cae |
351 | warn "Unknown index type ($index_type) on table $table_name.\n" |
352 | if $WARN; |
16dc9970 |
353 | } |
354 | } |
355 | |
96844cae |
356 | my $create_statement; |
357 | $create_statement = "DROP TABLE $table_name_ur;\n" if $add_drop_table; |
57f77285 |
358 | $create_statement .= |
359 | join( ",\n", map { "-- $_" } $table->comments ) . |
360 | "CREATE TABLE $table_name_ur (\n" . |
361 | join( ",\n", map { " $_" } @field_defs, @constraint_defs ) . |
44fcd0b5 |
362 | "\n);" |
16dc9970 |
363 | ; |
364 | |
365 | $output .= join( "\n\n", |
366 | @comments, |
367 | $create_statement, |
57f77285 |
368 | @trigger_defs, |
369 | @index_defs, |
f6195129 |
370 | @field_comments, |
16dc9970 |
371 | '' |
372 | ); |
373 | } |
374 | |
96844cae |
375 | if ( $WARN ) { |
376 | if ( %truncated ) { |
377 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
378 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
379 | } |
380 | |
381 | if ( %unreserve ) { |
382 | warn "Encounted " . keys( %unreserve ) . |
383 | " unsafe names in schema (reserved or invalid):\n"; |
384 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
385 | } |
386 | } |
387 | |
d529894e |
388 | return $output; |
16dc9970 |
389 | } |
390 | |
d529894e |
391 | # ------------------------------------------------------------------- |
392 | sub mk_name { |
57f77285 |
393 | my $basename = shift || ''; |
394 | my $type = shift || ''; |
395 | my $scope = shift || ''; |
396 | my $critical = shift || ''; |
d529894e |
397 | my $basename_orig = $basename; |
f5087552 |
398 | my $max_name = $type |
399 | ? $max_id_length - (length($type) + 1) |
400 | : $max_id_length; |
96844cae |
401 | $basename = substr( $basename, 0, $max_name ) |
402 | if length( $basename ) > $max_name; |
d529894e |
403 | my $name = $type ? "${type}_$basename" : $basename; |
404 | |
405 | if ( $basename ne $basename_orig and $critical ) { |
406 | my $show_type = $type ? "+'$type'" : ""; |
407 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
96844cae |
408 | "character limit to make '$name'\n" if $WARN; |
409 | $truncated{ $basename_orig } = $name; |
d529894e |
410 | } |
411 | |
412 | $scope ||= \%global_names; |
96844cae |
413 | if ( my $prev = $scope->{ $name } ) { |
414 | my $name_orig = $name; |
415 | $name .= sprintf( "%02d", ++$prev ); |
416 | substr($name, $max_id_length - 3) = "00" |
417 | if length( $name ) > $max_id_length; |
418 | |
419 | warn "The name '$name_orig' has been changed to ", |
420 | "'$name' to make it unique.\n" if $WARN; |
421 | |
422 | $scope->{ $name_orig }++; |
423 | } |
424 | |
425 | $scope->{ $name }++; |
d529894e |
426 | return $name; |
427 | } |
428 | |
429 | # ------------------------------------------------------------------- |
430 | sub unreserve { |
57f77285 |
431 | my $name = shift || ''; |
432 | my $schema_obj_name = shift || ''; |
433 | |
96844cae |
434 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
d529894e |
435 | |
436 | # also trap fields that don't begin with a letter |
57f77285 |
437 | return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i; |
d529894e |
438 | |
439 | if ( $schema_obj_name ) { |
440 | ++$unreserve{"$schema_obj_name.$name"}; |
441 | } |
442 | else { |
443 | ++$unreserve{"$name (table name)"}; |
444 | } |
445 | |
446 | my $unreserve = sprintf '%s_', $name; |
447 | return $unreserve.$suffix; |
448 | } |
449 | |
16dc9970 |
450 | 1; |
451 | |
d529894e |
452 | # ------------------------------------------------------------------- |
16dc9970 |
453 | # All bad art is the result of good intentions. |
454 | # Oscar Wilde |
d529894e |
455 | # ------------------------------------------------------------------- |
16dc9970 |
456 | |
457 | =head1 NAME |
458 | |
459 | SQL::Translator::Producer::Oracle - Oracle SQL producer |
460 | |
461 | =head1 SYNOPSIS |
462 | |
077ebf34 |
463 | use SQL::Translator::Parser::MySQL; |
16dc9970 |
464 | use SQL::Translator::Producer::Oracle; |
465 | |
077ebf34 |
466 | my $original_create = ""; # get this from somewhere... |
467 | my $translator = SQL::Translator->new; |
468 | |
469 | $translator->parser("SQL::Translator::Parser::MySQL"); |
470 | $translator->producer("SQL::Translator::Producer::Oracle"); |
471 | |
472 | my $new_create = $translator->translate($original_create); |
473 | |
16dc9970 |
474 | =head1 DESCRIPTION |
475 | |
077ebf34 |
476 | SQL::Translator::Producer::Oracle takes a parsed data structure, |
477 | created by a SQL::Translator::Parser subclass, and turns it into a |
478 | create string suitable for use with an Oracle database. |
16dc9970 |
479 | |
d529894e |
480 | =head1 CREDITS |
481 | |
482 | A hearty "thank-you" to Tim Bunce for much of the logic stolen from |
483 | his "mysql2ora" script. |
16dc9970 |
484 | |
485 | =head1 AUTHOR |
486 | |
d529894e |
487 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt> |
16dc9970 |
488 | |
489 | =head1 SEE ALSO |
490 | |
491 | perl(1). |
492 | |
493 | =cut |