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1 | package SQL::Translator::Producer::Oracle; |
2 | |
077ebf34 |
3 | # ------------------------------------------------------------------- |
821a0fde |
4 | # $Id$ |
077ebf34 |
5 | # ------------------------------------------------------------------- |
478f608d |
6 | # Copyright (C) 2002-2009 SQLFairy Authors |
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7 | # |
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8 | # This program is free software; you can redistribute it and/or |
9 | # modify it under the terms of the GNU General Public License as |
10 | # published by the Free Software Foundation; version 2. |
11 | # |
12 | # This program is distributed in the hope that it will be useful, but |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | # General Public License for more details. |
16 | # |
17 | # You should have received a copy of the GNU General Public License |
18 | # along with this program; if not, write to the Free Software |
19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
20 | # 02111-1307 USA |
21 | # ------------------------------------------------------------------- |
22 | |
ba096dc4 |
23 | =head1 NAME |
24 | |
25 | SQL::Translator::Producer::Oracle - Oracle SQL producer |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | use SQL::Translator; |
30 | |
31 | my $t = SQL::Translator->new( parser => '...', producer => 'Oracle' ); |
32 | print $translator->translate( $file ); |
33 | |
34 | =head1 DESCRIPTION |
35 | |
36 | Creates an SQL DDL suitable for Oracle. |
37 | |
662258cd |
38 | =head1 producer_args |
39 | |
40 | =over |
41 | |
42 | =item delay_constraints |
43 | |
44 | This option remove the primary key and other key constraints from the |
45 | CREATE TABLE statement and adds ALTER TABLEs at the end with it. |
46 | |
47 | =back |
48 | |
2c5e6626 |
49 | =head1 NOTES |
50 | |
51 | =head2 Autoincremental primary keys |
52 | |
53 | This producer uses sequences and triggers to autoincrement primary key |
54 | columns, if necessary. SQLPlus and DBI expect a slightly different syntax |
55 | of CREATE TRIGGER statement. You might have noticed that this |
56 | producer returns a scalar containing all statements concatenated by |
57 | newlines or an array of single statements depending on the context |
58 | (scalar, array) it has been called in. |
59 | |
60 | SQLPlus expects following trigger syntax: |
61 | |
62 | CREATE OR REPLACE TRIGGER ai_person_id |
63 | BEFORE INSERT ON person |
64 | FOR EACH ROW WHEN ( |
65 | new.id IS NULL OR new.id = 0 |
66 | ) |
67 | BEGIN |
68 | SELECT sq_person_id.nextval |
69 | INTO :new.id |
70 | FROM dual; |
71 | END; |
72 | / |
73 | |
74 | Whereas if you want to create the same trigger using L<DBI/do>, you need |
75 | to omit the last slash: |
76 | |
77 | my $dbh = DBI->connect('dbi:Oracle:mysid', 'scott', 'tiger'); |
78 | $dbh->do(" |
79 | CREATE OR REPLACE TRIGGER ai_person_id |
80 | BEFORE INSERT ON person |
81 | FOR EACH ROW WHEN ( |
82 | new.id IS NULL OR new.id = 0 |
83 | ) |
84 | BEGIN |
85 | SELECT sq_person_id.nextval |
86 | INTO :new.id |
87 | FROM dual; |
88 | END; |
89 | "); |
90 | |
91 | If you call this producer in array context, we expect you want to process |
92 | the returned array of statements using L<DBI> like |
93 | L<DBIx::Class::Schema/deploy> does. |
94 | |
95 | To get this working we removed the slash in those statements in version |
96 | 0.09002 of L<SQL::Translator> when called in array context. In scalar |
97 | context the slash will be still there to ensure compatibility with SQLPlus. |
98 | |
ba096dc4 |
99 | =cut |
100 | |
16dc9970 |
101 | use strict; |
478f608d |
102 | use vars qw[ $DEBUG $WARN ]; |
d529894e |
103 | $DEBUG = 0 unless defined $DEBUG; |
16dc9970 |
104 | |
57f77285 |
105 | use SQL::Translator::Schema::Constants; |
5ee19df8 |
106 | use SQL::Translator::Utils qw(header_comment); |
107 | |
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108 | my %translate = ( |
d529894e |
109 | # |
110 | # MySQL types |
111 | # |
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112 | bigint => 'number', |
113 | double => 'number', |
114 | decimal => 'number', |
115 | float => 'number', |
116 | int => 'number', |
25966689 |
117 | integer => 'number', |
16dc9970 |
118 | mediumint => 'number', |
119 | smallint => 'number', |
120 | tinyint => 'number', |
16dc9970 |
121 | char => 'char', |
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122 | varchar => 'varchar2', |
1f58ba76 |
123 | tinyblob => 'blob', |
124 | blob => 'blob', |
125 | mediumblob => 'blob', |
126 | longblob => 'blob', |
9fc9bfb1 |
127 | tinytext => 'varchar2', |
128 | text => 'clob', |
1f58ba76 |
129 | longtext => 'clob', |
130 | mediumtext => 'clob', |
16dc9970 |
131 | enum => 'varchar2', |
132 | set => 'varchar2', |
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133 | date => 'date', |
134 | datetime => 'date', |
135 | time => 'date', |
136 | timestamp => 'date', |
137 | year => 'date', |
d529894e |
138 | |
139 | # |
140 | # PostgreSQL types |
141 | # |
57f77285 |
142 | numeric => 'number', |
143 | 'double precision' => 'number', |
144 | serial => 'number', |
145 | bigserial => 'number', |
146 | money => 'number', |
147 | character => 'char', |
148 | 'character varying' => 'varchar2', |
149 | bytea => 'BLOB', |
150 | interval => 'number', |
151 | boolean => 'number', |
152 | point => 'number', |
153 | line => 'number', |
154 | lseg => 'number', |
155 | box => 'number', |
156 | path => 'number', |
157 | polygon => 'number', |
158 | circle => 'number', |
159 | cidr => 'number', |
160 | inet => 'varchar2', |
161 | macaddr => 'varchar2', |
162 | bit => 'number', |
163 | 'bit varying' => 'number', |
ab8802d7 |
164 | |
165 | # |
166 | # Oracle types |
167 | # |
168 | number => 'number', |
169 | varchar2 => 'varchar2', |
170 | long => 'clob', |
d529894e |
171 | ); |
172 | |
173 | # |
174 | # Oracle reserved words from: |
175 | # http://technet.oracle.com/docs/products/oracle8i/doc_library/\ |
176 | # 817_doc/server.817/a85397/ap_keywd.htm |
177 | # |
96844cae |
178 | my %ora_reserved = map { $_, 1 } qw( |
d529894e |
179 | ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT |
180 | BETWEEN BY |
181 | CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT |
182 | DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP |
183 | ELSE EXCLUSIVE EXISTS |
184 | FILE FLOAT FOR FROM |
185 | GRANT GROUP |
186 | HAVING |
187 | IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT |
188 | INTEGER INTERSECT INTO IS |
189 | LEVEL LIKE LOCK LONG |
190 | MAXEXTENTS MINUS MLSLABEL MODE MODIFY |
191 | NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER |
192 | OF OFFLINE ON ONLINE OPTION OR ORDER |
193 | PCTFREE PRIOR PRIVILEGES PUBLIC |
194 | RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS |
195 | SELECT SESSION SET SHARE SIZE SMALLINT START |
196 | SUCCESSFUL SYNONYM SYSDATE |
197 | TABLE THEN TO TRIGGER |
198 | UID UNION UNIQUE UPDATE USER |
199 | VALIDATE VALUES VARCHAR VARCHAR2 VIEW |
200 | WHENEVER WHERE WITH |
16dc9970 |
201 | ); |
202 | |
e3aac687 |
203 | # |
204 | # Oracle 8/9 max size of data types from: |
205 | # http://www.ss64.com/orasyntax/datatypes.html |
206 | # |
207 | my %max_size = ( |
208 | char => 2000, |
209 | nchar => 2000, |
210 | nvarchar2 => 4000, |
211 | number => [ 38, 127 ], |
212 | raw => 2000, |
213 | varchar => 4000, # only synonym for varchar2 |
214 | varchar2 => 4000, |
215 | ); |
216 | |
96844cae |
217 | my $max_id_length = 30; |
218 | my %used_identifiers = (); |
d529894e |
219 | my %global_names; |
220 | my %unreserve; |
221 | my %truncated; |
16dc9970 |
222 | |
96844cae |
223 | # ------------------------------------------------------------------- |
077ebf34 |
224 | sub produce { |
a1d94525 |
225 | my $translator = shift; |
226 | $DEBUG = $translator->debug; |
e56dabb7 |
227 | $WARN = $translator->show_warnings || 0; |
a1d94525 |
228 | my $no_comments = $translator->no_comments; |
229 | my $add_drop_table = $translator->add_drop_table; |
230 | my $schema = $translator->schema; |
65ffb46c |
231 | my $delay_constraints = $translator->producer_args->{delay_constraints}; |
232 | my ($output, $create, @table_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs); |
44fcd0b5 |
233 | |
e56dabb7 |
234 | $create .= header_comment unless ($no_comments); |
077ebf34 |
235 | |
d529894e |
236 | if ( $translator->parser_type =~ /mysql/i ) { |
e56dabb7 |
237 | $create .= |
ba3cb849 |
238 | "-- We assume that default NLS_DATE_FORMAT has been changed\n". |
239 | "-- but we set it here anyway to be self-consistent.\n" |
240 | unless $no_comments; |
241 | |
e56dabb7 |
242 | $create .= |
d529894e |
243 | "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n"; |
244 | } |
16dc9970 |
245 | |
57f77285 |
246 | for my $table ( $schema->get_tables ) { |
535e5c95 |
247 | my ( $table_def, $fk_def, $trigger_def, $index_def, $constraint_def ) = create_table( |
e56dabb7 |
248 | $table, |
249 | { |
535e5c95 |
250 | add_drop_table => $add_drop_table, |
251 | show_warnings => $WARN, |
252 | no_comments => $no_comments, |
253 | delay_constraints => $delay_constraints, |
254 | wantarray => wantarray ? 1 : 0, |
e56dabb7 |
255 | } |
256 | ); |
257 | push @table_defs, @$table_def; |
258 | push @fk_defs, @$fk_def; |
259 | push @trigger_defs, @$trigger_def; |
041e659f |
260 | push @index_defs, @$index_def; |
65ffb46c |
261 | push @constraint_defs, @$constraint_def; |
e56dabb7 |
262 | } |
263 | |
264 | my (@view_defs); |
265 | foreach my $view ( $schema->get_views ) { |
266 | push @view_defs, create_view($view); |
267 | } |
268 | |
f92d79aa |
269 | if (wantarray) { |
270 | return defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs; |
271 | } |
272 | else { |
273 | $create .= join ('', map { $_ ? "$_;\n\n" : () } @table_defs, @view_defs, @fk_defs, @index_defs, @constraint_defs); |
274 | # triggers may NOT end with a semicolon |
275 | $create .= join "\n\n", @trigger_defs; |
276 | return $create; |
277 | } |
e56dabb7 |
278 | } |
279 | |
280 | sub create_table { |
281 | my ($table, $options) = @_; |
282 | my $table_name = $table->name; |
283 | |
284 | my $item = ''; |
285 | my $drop; |
286 | my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs); |
16dc9970 |
287 | |
e56dabb7 |
288 | my $table_name_ur = unreserve($table_name) or next; |
16dc9970 |
289 | |
a7f999aa |
290 | push @create, "--\n-- Table: $table_name_ur\n--" unless $options->{no_comments}; |
291 | push @create, qq[DROP TABLE $table_name_ur CASCADE CONSTRAINTS] if $options->{add_drop_table}; |
292 | |
f6195129 |
293 | my ( %field_name_scope, @field_comments ); |
57f77285 |
294 | for my $field ( $table->get_fields ) { |
017ac5a7 |
295 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
296 | create_field($field, $options, \%field_name_scope); |
297 | push @create, @$field_create if ref $field_create; |
298 | push @field_defs, @$field_defs if ref $field_defs; |
299 | push @trigger_defs, @$trigger_defs if ref $trigger_defs; |
300 | push @field_comments, @$field_comments if ref $field_comments; |
57f77285 |
301 | } |
302 | |
303 | # |
02c2af3b |
304 | # Table options |
305 | # |
306 | my @table_options; |
307 | for my $opt ( $table->options ) { |
308 | if ( ref $opt eq 'HASH' ) { |
309 | my ( $key, $value ) = each %$opt; |
310 | if ( ref $value eq 'ARRAY' ) { |
311 | push @table_options, "$key\n(\n". join ("\n", |
312 | map { " $_->[0]\t$_->[1]" } |
313 | map { [ each %$_ ] } |
314 | @$value |
315 | )."\n)"; |
316 | } |
317 | elsif ( !defined $value ) { |
318 | push @table_options, $key; |
319 | } |
320 | else { |
321 | push @table_options, "$key $value"; |
322 | } |
323 | } |
324 | } |
325 | |
326 | # |
57f77285 |
327 | # Table constraints |
328 | # |
57f77285 |
329 | for my $c ( $table->get_constraints ) { |
330 | my $name = $c->name || ''; |
331 | my @fields = map { unreserve( $_, $table_name ) } $c->fields; |
332 | my @rfields = map { unreserve( $_, $table_name ) } |
333 | $c->reference_fields; |
4dfb0380 |
334 | next if !@fields && $c->type ne CHECK_C; |
57f77285 |
335 | |
336 | if ( $c->type eq PRIMARY_KEY ) { |
d4977f1c |
337 | # create a name if delay_constraints |
338 | $name ||= mk_name( $table_name, 'pk' ) |
339 | if $options->{delay_constraints}; |
54e61f1f |
340 | push @constraint_defs, ($name ? "CONSTRAINT $name " : '') . |
341 | 'PRIMARY KEY (' . join( ', ', @fields ) . ')'; |
57f77285 |
342 | } |
343 | elsif ( $c->type eq UNIQUE ) { |
54e61f1f |
344 | # Don't create UNIQUE constraints identical to the primary key |
345 | if ( my $pk = $table->primary_key ) { |
346 | my $u_fields = join(":", @fields); |
347 | my $pk_fields = join(":", $pk->fields); |
348 | next if $u_fields eq $pk_fields; |
349 | } |
350 | |
351 | $name ||= mk_name( $name || $table_name, 'u' ); |
6d4ce9b6 |
352 | |
b0c196d4 |
353 | for my $f ( $c->fields ) { |
354 | my $field_def = $table->get_field( $f ) or next; |
355 | my $dtype = $translate{ $field_def->data_type } or next; |
356 | if ( $WARN && $dtype =~ /clob/i ) { |
357 | warn "Oracle will not allow UNIQUE constraints on " . |
358 | "CLOB field '" . $field_def->table->name . '.' . |
359 | $field_def->name . ".'\n" |
360 | } |
361 | } |
6d4ce9b6 |
362 | |
57f77285 |
363 | push @constraint_defs, "CONSTRAINT $name UNIQUE " . |
364 | '(' . join( ', ', @fields ) . ')'; |
365 | } |
4dfb0380 |
366 | elsif ( $c->type eq CHECK_C ) { |
54e61f1f |
367 | $name ||= mk_name( $name || $table_name, 'ck' ); |
4dfb0380 |
368 | my $expression = $c->expression || ''; |
369 | push @constraint_defs, "CONSTRAINT $name CHECK ($expression)"; |
370 | } |
57f77285 |
371 | elsif ( $c->type eq FOREIGN_KEY ) { |
541d6e24 |
372 | $name = mk_name( join('_', $table_name, $c->fields). '_fk' ); |
cd617ba8 |
373 | my $def = "CONSTRAINT $name FOREIGN KEY "; |
374 | |
375 | if ( @fields ) { |
1c899510 |
376 | $def .= '(' . join( ', ', @fields ) . ')'; |
cd617ba8 |
377 | } |
378 | |
1c899510 |
379 | my $ref_table = unreserve($c->reference_table); |
380 | |
381 | $def .= " REFERENCES $ref_table"; |
57f77285 |
382 | |
383 | if ( @rfields ) { |
384 | $def .= ' (' . join( ', ', @rfields ) . ')'; |
385 | } |
386 | |
387 | if ( $c->match_type ) { |
388 | $def .= ' MATCH ' . |
389 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
390 | } |
391 | |
392 | if ( $c->on_delete ) { |
393 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
394 | } |
395 | |
541d6e24 |
396 | # disabled by plu 2007-12-29 - doesn't exist for oracle |
397 | #if ( $c->on_update ) { |
398 | # $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
399 | #} |
57f77285 |
400 | |
541d6e24 |
401 | push @fk_defs, sprintf("ALTER TABLE %s ADD %s", $table_name_ur, $def); |
57f77285 |
402 | } |
16dc9970 |
403 | } |
404 | |
405 | # |
406 | # Index Declarations |
407 | # |
57f77285 |
408 | my @index_defs = (); |
57f77285 |
409 | for my $index ( $table->get_indices ) { |
410 | my $index_name = $index->name || ''; |
411 | my $index_type = $index->type || NORMAL; |
44fcd0b5 |
412 | my @fields = map { unreserve( $_, $table_name ) } |
57f77285 |
413 | $index->fields; |
44fcd0b5 |
414 | next unless @fields; |
16dc9970 |
415 | |
bdd8e79a |
416 | my @index_options; |
417 | for my $opt ( $index->options ) { |
418 | if ( ref $opt eq 'HASH' ) { |
419 | my ( $key, $value ) = each %$opt; |
420 | if ( ref $value eq 'ARRAY' ) { |
421 | push @table_options, "$key\n(\n". join ("\n", |
422 | map { " $_->[0]\t$_->[1]" } |
423 | map { [ each %$_ ] } |
424 | @$value |
425 | )."\n)"; |
426 | } |
427 | elsif ( !defined $value ) { |
428 | push @index_options, $key; |
429 | } |
430 | else { |
431 | push @index_options, "$key $value"; |
432 | } |
433 | } |
434 | } |
435 | my $index_options = @index_options |
436 | ? "\n".join("\n", @index_options) : ''; |
437 | |
57f77285 |
438 | if ( $index_type eq PRIMARY_KEY ) { |
6d4ce9b6 |
439 | $index_name = $index_name ? mk_name( $index_name ) |
440 | : mk_name( $table_name, 'pk' ); |
57f77285 |
441 | push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '. |
16dc9970 |
442 | '(' . join( ', ', @fields ) . ')'; |
443 | } |
57f77285 |
444 | elsif ( $index_type eq NORMAL ) { |
6d4ce9b6 |
445 | $index_name = $index_name ? mk_name( $index_name ) |
446 | : mk_name( $table_name, $index_name || 'i' ); |
57f77285 |
447 | push @index_defs, |
da8e499e |
448 | "CREATE INDEX $index_name on $table_name_ur (". |
449 | join( ', ', @fields ). |
4dec2e49 |
450 | ")$index_options"; |
16dc9970 |
451 | } |
041e659f |
452 | elsif ( $index_type eq UNIQUE ) { |
453 | $index_name = $index_name ? mk_name( $index_name ) |
454 | : mk_name( $table_name, $index_name || 'i' ); |
455 | push @index_defs, |
456 | "CREATE UNIQUE INDEX $index_name on $table_name_ur (". |
457 | join( ', ', @fields ). |
4dec2e49 |
458 | ")$index_options"; |
041e659f |
459 | } |
16dc9970 |
460 | else { |
96844cae |
461 | warn "Unknown index type ($index_type) on table $table_name.\n" |
462 | if $WARN; |
16dc9970 |
463 | } |
464 | } |
465 | |
9fc9bfb1 |
466 | if ( my @table_comments = $table->comments ) { |
467 | for my $comment ( @table_comments ) { |
468 | next unless $comment; |
b89d5635 |
469 | $comment =~ s/'/''/g; |
470 | push @field_comments, "COMMENT ON TABLE $table_name_ur is\n '". |
4dec2e49 |
471 | $comment . "'" unless $options->{no_comments} |
9fc9bfb1 |
472 | ; |
473 | } |
474 | } |
475 | |
02c2af3b |
476 | my $table_options = @table_options |
477 | ? "\n".join("\n", @table_options) : ''; |
e56dabb7 |
478 | push @create, "CREATE TABLE $table_name_ur (\n" . |
65ffb46c |
479 | join( ",\n", map { " $_" } @field_defs, |
480 | ($options->{delay_constraints} ? () : @constraint_defs) ) . |
4dec2e49 |
481 | "\n)$table_options"; |
65ffb46c |
482 | |
4dec2e49 |
483 | @constraint_defs = map { 'ALTER TABLE '.$table_name_ur.' ADD '.$_ } |
65ffb46c |
484 | @constraint_defs; |
16dc9970 |
485 | |
96844cae |
486 | if ( $WARN ) { |
487 | if ( %truncated ) { |
488 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
489 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
490 | } |
491 | |
492 | if ( %unreserve ) { |
493 | warn "Encounted " . keys( %unreserve ) . |
494 | " unsafe names in schema (reserved or invalid):\n"; |
495 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
496 | } |
497 | } |
498 | |
65ffb46c |
499 | return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []); |
e56dabb7 |
500 | } |
501 | |
017ac5a7 |
502 | sub alter_field { |
503 | my ($from_field, $to_field, $options) = @_; |
504 | |
505 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
506 | create_field($to_field, $options, {}); |
507 | |
d888d445 |
508 | # Fix ORA-01442 |
509 | if ($to_field->is_nullable && !$from_field->is_nullable) { |
510 | die 'Cannot remove NOT NULL from table field'; |
511 | } elsif (!$from_field->is_nullable && !$to_field->is_nullable) { |
512 | @$field_defs = map { s/ NOT NULL//; $_} @$field_defs; |
513 | } |
514 | |
017ac5a7 |
515 | my $table_name = $to_field->table->name; |
516 | my $table_name_ur = unreserve( $table_name ); |
517 | |
518 | return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )'; |
519 | } |
520 | |
fe9f1470 |
521 | sub add_field { |
522 | my ($new_field, $options) = @_; |
523 | |
524 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
525 | create_field($new_field, $options, {}); |
526 | |
527 | my $table_name = $new_field->table->name; |
528 | my $table_name_ur = unreserve( $table_name ); |
529 | |
530 | my $out = sprintf('ALTER TABLE %s ADD ( %s )', |
531 | $table_name_ur, |
532 | join('', @$field_defs)); |
533 | return $out; |
534 | } |
535 | |
017ac5a7 |
536 | sub create_field { |
537 | my ($field, $options, $field_name_scope) = @_; |
538 | |
539 | my (@create, @field_defs, @trigger_defs, @field_comments); |
540 | |
541 | my $table_name = $field->table->name; |
542 | my $table_name_ur = unreserve( $table_name ); |
543 | |
544 | # |
545 | # Field name |
546 | # |
547 | my $field_name = mk_name( |
548 | $field->name, '', $field_name_scope, 1 |
549 | ); |
550 | |
551 | my $field_name_ur = unreserve( $field_name, $table_name ); |
552 | my $field_def = $field_name_ur; |
553 | $field->name( $field_name_ur ); |
554 | |
555 | # |
556 | # Datatype |
557 | # |
558 | my $check; |
559 | my $data_type = lc $field->data_type; |
560 | my @size = $field->size; |
561 | my %extra = $field->extra; |
562 | my $list = $extra{'list'} || []; |
563 | # \todo deal with embedded quotes |
564 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
565 | |
566 | if ( $data_type eq 'enum' ) { |
567 | $check = "CHECK ($field_name_ur IN ($commalist))"; |
568 | $data_type = 'varchar2'; |
569 | } |
570 | elsif ( $data_type eq 'set' ) { |
571 | # XXX add a CHECK constraint maybe |
572 | # (trickier and slower, than enum :) |
573 | $data_type = 'varchar2'; |
574 | } |
575 | else { |
576 | $data_type = defined $translate{ $data_type } ? |
577 | $translate{ $data_type } : |
578 | $data_type; |
579 | $data_type ||= 'varchar2'; |
580 | } |
e3aac687 |
581 | |
582 | # ensure size is not bigger than max size oracle allows for data type |
583 | if ( defined $max_size{$data_type} ) { |
584 | for ( my $i = 0 ; $i < scalar @size ; $i++ ) { |
585 | my $max = |
586 | ref( $max_size{$data_type} ) eq 'ARRAY' |
587 | ? $max_size{$data_type}->[$i] |
588 | : $max_size{$data_type}; |
589 | $size[$i] = $max if $size[$i] > $max; |
590 | } |
591 | } |
017ac5a7 |
592 | |
593 | # |
594 | # Fixes ORA-02329: column of datatype LOB cannot be |
595 | # unique or a primary key |
596 | # |
597 | if ( $data_type eq 'clob' && $field->is_primary_key ) { |
598 | $data_type = 'varchar2'; |
599 | $size[0] = 4000; |
600 | warn "CLOB cannot be a primary key, changing to VARCHAR2\n" |
601 | if $WARN; |
602 | } |
603 | |
604 | if ( $data_type eq 'clob' && $field->is_unique ) { |
605 | $data_type = 'varchar2'; |
606 | $size[0] = 4000; |
607 | warn "CLOB cannot be a unique key, changing to VARCHAR2\n" |
608 | if $WARN; |
609 | } |
610 | |
611 | # |
612 | # Fixes ORA-00907: missing right parenthesis |
613 | # |
614 | if ( $data_type =~ /(date|clob)/i ) { |
615 | undef @size; |
616 | } |
617 | |
618 | $field_def .= " $data_type"; |
619 | if ( defined $size[0] && $size[0] > 0 ) { |
620 | $field_def .= '(' . join( ', ', @size ) . ')'; |
621 | } |
622 | |
623 | # |
624 | # Default value |
625 | # |
626 | my $default = $field->default_value; |
627 | if ( defined $default ) { |
628 | # |
629 | # Wherein we try to catch a string being used as |
630 | # a default value for a numerical field. If "true/false," |
631 | # then sub "1/0," otherwise just test the truthity of the |
632 | # argument and use that (naive?). |
633 | # |
bc8e2aa1 |
634 | if (ref $default and defined $$default) { |
635 | $default = $$default; |
636 | } elsif (ref $default) { |
637 | $default = 'NULL'; |
638 | } elsif ( |
017ac5a7 |
639 | $data_type =~ /^number$/i && |
640 | $default !~ /^-?\d+$/ && |
641 | $default !~ m/null/i |
642 | ) { |
643 | if ( $default =~ /^true$/i ) { |
644 | $default = "'1'"; |
645 | } elsif ( $default =~ /^false$/i ) { |
646 | $default = "'0'"; |
647 | } else { |
648 | $default = $default ? "'1'" : "'0'"; |
649 | } |
650 | } elsif ( |
651 | $data_type =~ /date/ && ( |
652 | $default eq 'current_timestamp' |
653 | || |
654 | $default eq 'now()' |
655 | ) |
656 | ) { |
657 | $default = 'SYSDATE'; |
658 | } else { |
659 | $default = $default =~ m/null/i ? 'NULL' : "'$default'" |
660 | } |
661 | |
662 | $field_def .= " DEFAULT $default", |
663 | } |
664 | |
665 | # |
666 | # Not null constraint |
667 | # |
668 | unless ( $field->is_nullable ) { |
669 | $field_def .= ' NOT NULL'; |
670 | } |
671 | |
672 | $field_def .= " $check" if $check; |
673 | |
674 | # |
675 | # Auto_increment |
676 | # |
677 | if ( $field->is_auto_increment ) { |
678 | my $base_name = $table_name_ur . "_". $field_name; |
679 | my $seq_name = mk_name( $base_name, 'sq' ); |
680 | my $trigger_name = mk_name( $base_name, 'ai' ); |
681 | |
4dec2e49 |
682 | push @create, qq[DROP SEQUENCE $seq_name] if $options->{add_drop_table}; |
683 | push @create, "CREATE SEQUENCE $seq_name"; |
535e5c95 |
684 | my $trigger = |
017ac5a7 |
685 | "CREATE OR REPLACE TRIGGER $trigger_name\n" . |
686 | "BEFORE INSERT ON $table_name_ur\n" . |
687 | "FOR EACH ROW WHEN (\n" . |
688 | " new.$field_name_ur IS NULL". |
689 | " OR new.$field_name_ur = 0\n". |
690 | ")\n". |
691 | "BEGIN\n" . |
692 | " SELECT $seq_name.nextval\n" . |
693 | " INTO :new." . $field->name."\n" . |
694 | " FROM dual;\n" . |
535e5c95 |
695 | "END;\n"; |
696 | |
697 | # |
698 | # If wantarray is set we have to omit the last "/" in this statement so it |
699 | # can be executed by DBI->do() directly. |
700 | # |
701 | $trigger .= "/" unless $options->{wantarray}; |
702 | |
703 | push @trigger_defs, $trigger; |
017ac5a7 |
704 | } |
705 | |
706 | if ( lc $field->data_type eq 'timestamp' ) { |
707 | my $base_name = $table_name_ur . "_". $field_name_ur; |
708 | my $trig_name = mk_name( $base_name, 'ts' ); |
535e5c95 |
709 | my $trigger = |
017ac5a7 |
710 | "CREATE OR REPLACE TRIGGER $trig_name\n". |
711 | "BEFORE INSERT OR UPDATE ON $table_name_ur\n". |
712 | "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n". |
713 | "BEGIN \n". |
714 | " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n". |
535e5c95 |
715 | "END;\n"; |
716 | |
717 | # |
718 | # If wantarray is set we have to omit the last "/" in this statement so it |
719 | # can be executed by DBI->do() directly. |
720 | # |
721 | $trigger .= "/" unless $options->{wantarray}; |
722 | |
723 | push @trigger_defs, $trigger; |
017ac5a7 |
724 | } |
725 | |
726 | push @field_defs, $field_def; |
727 | |
728 | if ( my $comment = $field->comments ) { |
729 | $comment =~ s/'/''/g; |
730 | push @field_comments, |
731 | "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" . |
732 | $comment . "';" unless $options->{no_comments}; |
733 | } |
734 | |
735 | return \@create, \@field_defs, \@trigger_defs, \@field_comments; |
736 | |
737 | } |
738 | |
739 | |
e56dabb7 |
740 | sub create_view { |
741 | my ($view) = @_; |
742 | |
13db351b |
743 | my $out = sprintf("CREATE VIEW %s AS\n%s", |
e56dabb7 |
744 | $view->name, |
745 | $view->sql); |
746 | |
747 | return $out; |
16dc9970 |
748 | } |
749 | |
d529894e |
750 | # ------------------------------------------------------------------- |
751 | sub mk_name { |
57f77285 |
752 | my $basename = shift || ''; |
753 | my $type = shift || ''; |
1c899510 |
754 | $type = '' if $type =~ /^\d/; |
57f77285 |
755 | my $scope = shift || ''; |
756 | my $critical = shift || ''; |
d529894e |
757 | my $basename_orig = $basename; |
f5087552 |
758 | my $max_name = $type |
759 | ? $max_id_length - (length($type) + 1) |
760 | : $max_id_length; |
96844cae |
761 | $basename = substr( $basename, 0, $max_name ) |
762 | if length( $basename ) > $max_name; |
d529894e |
763 | my $name = $type ? "${type}_$basename" : $basename; |
764 | |
765 | if ( $basename ne $basename_orig and $critical ) { |
766 | my $show_type = $type ? "+'$type'" : ""; |
767 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
96844cae |
768 | "character limit to make '$name'\n" if $WARN; |
769 | $truncated{ $basename_orig } = $name; |
d529894e |
770 | } |
771 | |
772 | $scope ||= \%global_names; |
96844cae |
773 | if ( my $prev = $scope->{ $name } ) { |
774 | my $name_orig = $name; |
b89d5635 |
775 | substr($name, $max_id_length - 2) = "" |
776 | if length( $name ) >= $max_id_length - 1; |
777 | $name .= sprintf( "%02d", $prev++ ); |
96844cae |
778 | |
779 | warn "The name '$name_orig' has been changed to ", |
780 | "'$name' to make it unique.\n" if $WARN; |
781 | |
782 | $scope->{ $name_orig }++; |
783 | } |
784 | |
785 | $scope->{ $name }++; |
d529894e |
786 | return $name; |
787 | } |
788 | |
789 | # ------------------------------------------------------------------- |
790 | sub unreserve { |
57f77285 |
791 | my $name = shift || ''; |
792 | my $schema_obj_name = shift || ''; |
793 | |
96844cae |
794 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
d529894e |
795 | |
796 | # also trap fields that don't begin with a letter |
57f77285 |
797 | return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i; |
d529894e |
798 | |
799 | if ( $schema_obj_name ) { |
800 | ++$unreserve{"$schema_obj_name.$name"}; |
801 | } |
802 | else { |
803 | ++$unreserve{"$name (table name)"}; |
804 | } |
805 | |
806 | my $unreserve = sprintf '%s_', $name; |
807 | return $unreserve.$suffix; |
808 | } |
809 | |
16dc9970 |
810 | 1; |
811 | |
d529894e |
812 | # ------------------------------------------------------------------- |
16dc9970 |
813 | # All bad art is the result of good intentions. |
814 | # Oscar Wilde |
d529894e |
815 | # ------------------------------------------------------------------- |
16dc9970 |
816 | |
ba096dc4 |
817 | =pod |
16dc9970 |
818 | |
d529894e |
819 | =head1 CREDITS |
820 | |
ba096dc4 |
821 | Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora" |
822 | script. |
16dc9970 |
823 | |
824 | =head1 AUTHOR |
825 | |
ba096dc4 |
826 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
16dc9970 |
827 | |
828 | =head1 SEE ALSO |
829 | |
ba096dc4 |
830 | SQL::Translator, DDL::Oracle, mysql2ora. |
16dc9970 |
831 | |
832 | =cut |