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1 | package SQL::Translator::Producer::Oracle; |
2 | |
077ebf34 |
3 | # ------------------------------------------------------------------- |
478f608d |
4 | # Copyright (C) 2002-2009 SQLFairy Authors |
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5 | # |
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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 | |
ba096dc4 |
21 | =head1 NAME |
22 | |
23 | SQL::Translator::Producer::Oracle - Oracle SQL producer |
24 | |
25 | =head1 SYNOPSIS |
26 | |
27 | use SQL::Translator; |
28 | |
29 | my $t = SQL::Translator->new( parser => '...', producer => 'Oracle' ); |
30 | print $translator->translate( $file ); |
31 | |
32 | =head1 DESCRIPTION |
33 | |
34 | Creates an SQL DDL suitable for Oracle. |
35 | |
662258cd |
36 | =head1 producer_args |
37 | |
38 | =over |
39 | |
40 | =item delay_constraints |
41 | |
42 | This option remove the primary key and other key constraints from the |
43 | CREATE TABLE statement and adds ALTER TABLEs at the end with it. |
44 | |
45 | =back |
46 | |
2c5e6626 |
47 | =head1 NOTES |
48 | |
49 | =head2 Autoincremental primary keys |
50 | |
51 | This producer uses sequences and triggers to autoincrement primary key |
52 | columns, if necessary. SQLPlus and DBI expect a slightly different syntax |
53 | of CREATE TRIGGER statement. You might have noticed that this |
54 | producer returns a scalar containing all statements concatenated by |
55 | newlines or an array of single statements depending on the context |
56 | (scalar, array) it has been called in. |
57 | |
58 | SQLPlus expects following trigger syntax: |
59 | |
60 | CREATE OR REPLACE TRIGGER ai_person_id |
61 | BEFORE INSERT ON person |
62 | FOR EACH ROW WHEN ( |
63 | new.id IS NULL OR new.id = 0 |
64 | ) |
65 | BEGIN |
66 | SELECT sq_person_id.nextval |
67 | INTO :new.id |
68 | FROM dual; |
69 | END; |
70 | / |
71 | |
72 | Whereas if you want to create the same trigger using L<DBI/do>, you need |
73 | to omit the last slash: |
74 | |
75 | my $dbh = DBI->connect('dbi:Oracle:mysid', 'scott', 'tiger'); |
76 | $dbh->do(" |
77 | CREATE OR REPLACE TRIGGER ai_person_id |
78 | BEFORE INSERT ON person |
79 | FOR EACH ROW WHEN ( |
80 | new.id IS NULL OR new.id = 0 |
81 | ) |
82 | BEGIN |
83 | SELECT sq_person_id.nextval |
84 | INTO :new.id |
85 | FROM dual; |
86 | END; |
87 | "); |
88 | |
89 | If you call this producer in array context, we expect you want to process |
90 | the returned array of statements using L<DBI> like |
91 | L<DBIx::Class::Schema/deploy> does. |
92 | |
93 | To get this working we removed the slash in those statements in version |
94 | 0.09002 of L<SQL::Translator> when called in array context. In scalar |
95 | context the slash will be still there to ensure compatibility with SQLPlus. |
96 | |
ba096dc4 |
97 | =cut |
98 | |
16dc9970 |
99 | use strict; |
da06ac74 |
100 | use vars qw[ $VERSION $DEBUG $WARN ]; |
11ad2df9 |
101 | $VERSION = '1.59'; |
d529894e |
102 | $DEBUG = 0 unless defined $DEBUG; |
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103 | |
57f77285 |
104 | use SQL::Translator::Schema::Constants; |
5ee19df8 |
105 | use SQL::Translator::Utils qw(header_comment); |
106 | |
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107 | my %translate = ( |
d529894e |
108 | # |
109 | # MySQL types |
110 | # |
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111 | bigint => 'number', |
112 | double => 'number', |
113 | decimal => 'number', |
114 | float => 'number', |
115 | int => 'number', |
25966689 |
116 | integer => 'number', |
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117 | mediumint => 'number', |
118 | smallint => 'number', |
119 | tinyint => 'number', |
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120 | char => 'char', |
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121 | varchar => 'varchar2', |
1f58ba76 |
122 | tinyblob => 'blob', |
123 | blob => 'blob', |
124 | mediumblob => 'blob', |
125 | longblob => 'blob', |
9fc9bfb1 |
126 | tinytext => 'varchar2', |
127 | text => 'clob', |
1f58ba76 |
128 | longtext => 'clob', |
129 | mediumtext => 'clob', |
16dc9970 |
130 | enum => 'varchar2', |
131 | set => 'varchar2', |
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132 | date => 'date', |
133 | datetime => 'date', |
134 | time => 'date', |
135 | timestamp => 'date', |
136 | year => 'date', |
d529894e |
137 | |
138 | # |
139 | # PostgreSQL types |
140 | # |
57f77285 |
141 | numeric => 'number', |
142 | 'double precision' => 'number', |
143 | serial => 'number', |
144 | bigserial => 'number', |
145 | money => 'number', |
146 | character => 'char', |
147 | 'character varying' => 'varchar2', |
148 | bytea => 'BLOB', |
149 | interval => 'number', |
150 | boolean => 'number', |
151 | point => 'number', |
152 | line => 'number', |
153 | lseg => 'number', |
154 | box => 'number', |
155 | path => 'number', |
156 | polygon => 'number', |
157 | circle => 'number', |
158 | cidr => 'number', |
159 | inet => 'varchar2', |
160 | macaddr => 'varchar2', |
161 | bit => 'number', |
162 | 'bit varying' => 'number', |
ab8802d7 |
163 | |
164 | # |
165 | # Oracle types |
166 | # |
167 | number => 'number', |
168 | varchar2 => 'varchar2', |
169 | long => 'clob', |
d529894e |
170 | ); |
171 | |
172 | # |
173 | # Oracle reserved words from: |
174 | # http://technet.oracle.com/docs/products/oracle8i/doc_library/\ |
175 | # 817_doc/server.817/a85397/ap_keywd.htm |
176 | # |
96844cae |
177 | my %ora_reserved = map { $_, 1 } qw( |
d529894e |
178 | ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT |
179 | BETWEEN BY |
180 | CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT |
181 | DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP |
182 | ELSE EXCLUSIVE EXISTS |
183 | FILE FLOAT FOR FROM |
184 | GRANT GROUP |
185 | HAVING |
186 | IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT |
187 | INTEGER INTERSECT INTO IS |
188 | LEVEL LIKE LOCK LONG |
189 | MAXEXTENTS MINUS MLSLABEL MODE MODIFY |
190 | NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER |
191 | OF OFFLINE ON ONLINE OPTION OR ORDER |
192 | PCTFREE PRIOR PRIVILEGES PUBLIC |
193 | RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS |
194 | SELECT SESSION SET SHARE SIZE SMALLINT START |
195 | SUCCESSFUL SYNONYM SYSDATE |
196 | TABLE THEN TO TRIGGER |
197 | UID UNION UNIQUE UPDATE USER |
198 | VALIDATE VALUES VARCHAR VARCHAR2 VIEW |
199 | WHENEVER WHERE WITH |
16dc9970 |
200 | ); |
201 | |
e3aac687 |
202 | # |
203 | # Oracle 8/9 max size of data types from: |
204 | # http://www.ss64.com/orasyntax/datatypes.html |
205 | # |
206 | my %max_size = ( |
207 | char => 2000, |
208 | nchar => 2000, |
209 | nvarchar2 => 4000, |
210 | number => [ 38, 127 ], |
211 | raw => 2000, |
212 | varchar => 4000, # only synonym for varchar2 |
213 | varchar2 => 4000, |
214 | ); |
215 | |
96844cae |
216 | my $max_id_length = 30; |
217 | my %used_identifiers = (); |
d529894e |
218 | my %global_names; |
219 | my %unreserve; |
220 | my %truncated; |
16dc9970 |
221 | |
96844cae |
222 | # ------------------------------------------------------------------- |
077ebf34 |
223 | sub produce { |
a1d94525 |
224 | my $translator = shift; |
225 | $DEBUG = $translator->debug; |
e56dabb7 |
226 | $WARN = $translator->show_warnings || 0; |
a1d94525 |
227 | my $no_comments = $translator->no_comments; |
228 | my $add_drop_table = $translator->add_drop_table; |
229 | my $schema = $translator->schema; |
65ffb46c |
230 | my $delay_constraints = $translator->producer_args->{delay_constraints}; |
231 | my ($output, $create, @table_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs); |
44fcd0b5 |
232 | |
e56dabb7 |
233 | $create .= header_comment unless ($no_comments); |
077ebf34 |
234 | |
d529894e |
235 | if ( $translator->parser_type =~ /mysql/i ) { |
e56dabb7 |
236 | $create .= |
ba3cb849 |
237 | "-- We assume that default NLS_DATE_FORMAT has been changed\n". |
238 | "-- but we set it here anyway to be self-consistent.\n" |
239 | unless $no_comments; |
240 | |
e56dabb7 |
241 | $create .= |
d529894e |
242 | "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n"; |
243 | } |
16dc9970 |
244 | |
57f77285 |
245 | for my $table ( $schema->get_tables ) { |
535e5c95 |
246 | my ( $table_def, $fk_def, $trigger_def, $index_def, $constraint_def ) = create_table( |
e56dabb7 |
247 | $table, |
248 | { |
535e5c95 |
249 | add_drop_table => $add_drop_table, |
250 | show_warnings => $WARN, |
251 | no_comments => $no_comments, |
252 | delay_constraints => $delay_constraints, |
e56dabb7 |
253 | } |
254 | ); |
255 | push @table_defs, @$table_def; |
256 | push @fk_defs, @$fk_def; |
257 | push @trigger_defs, @$trigger_def; |
041e659f |
258 | push @index_defs, @$index_def; |
65ffb46c |
259 | push @constraint_defs, @$constraint_def; |
e56dabb7 |
260 | } |
261 | |
262 | my (@view_defs); |
263 | foreach my $view ( $schema->get_views ) { |
64ac5763 |
264 | my ( $view_def ) = create_view( |
265 | $view, |
266 | { |
267 | add_drop_view => $add_drop_table, |
268 | } |
269 | ); |
270 | push @view_defs, @$view_def; |
e56dabb7 |
271 | } |
272 | |
f92d79aa |
273 | if (wantarray) { |
274 | return defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs; |
275 | } |
276 | else { |
277 | $create .= join ('', map { $_ ? "$_;\n\n" : () } @table_defs, @view_defs, @fk_defs, @index_defs, @constraint_defs); |
64ac5763 |
278 | # If wantarray is not set we have to add "/" in this statement |
279 | # DBI->do() needs them omitted |
f92d79aa |
280 | # triggers may NOT end with a semicolon |
64ac5763 |
281 | $create .= join "/\n\n", @trigger_defs; |
282 | # for last trigger |
283 | $create .= "/\n\n"; |
f92d79aa |
284 | return $create; |
285 | } |
e56dabb7 |
286 | } |
287 | |
288 | sub create_table { |
289 | my ($table, $options) = @_; |
290 | my $table_name = $table->name; |
64ac5763 |
291 | |
e56dabb7 |
292 | my $item = ''; |
293 | my $drop; |
294 | my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs); |
16dc9970 |
295 | |
e56dabb7 |
296 | my $table_name_ur = unreserve($table_name) or next; |
16dc9970 |
297 | |
a7f999aa |
298 | push @create, "--\n-- Table: $table_name_ur\n--" unless $options->{no_comments}; |
299 | push @create, qq[DROP TABLE $table_name_ur CASCADE CONSTRAINTS] if $options->{add_drop_table}; |
300 | |
f6195129 |
301 | my ( %field_name_scope, @field_comments ); |
57f77285 |
302 | for my $field ( $table->get_fields ) { |
017ac5a7 |
303 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
304 | create_field($field, $options, \%field_name_scope); |
305 | push @create, @$field_create if ref $field_create; |
306 | push @field_defs, @$field_defs if ref $field_defs; |
307 | push @trigger_defs, @$trigger_defs if ref $trigger_defs; |
308 | push @field_comments, @$field_comments if ref $field_comments; |
57f77285 |
309 | } |
310 | |
311 | # |
02c2af3b |
312 | # Table options |
313 | # |
314 | my @table_options; |
315 | for my $opt ( $table->options ) { |
316 | if ( ref $opt eq 'HASH' ) { |
317 | my ( $key, $value ) = each %$opt; |
318 | if ( ref $value eq 'ARRAY' ) { |
319 | push @table_options, "$key\n(\n". join ("\n", |
320 | map { " $_->[0]\t$_->[1]" } |
321 | map { [ each %$_ ] } |
322 | @$value |
323 | )."\n)"; |
324 | } |
325 | elsif ( !defined $value ) { |
326 | push @table_options, $key; |
327 | } |
328 | else { |
329 | push @table_options, "$key $value"; |
330 | } |
331 | } |
332 | } |
333 | |
334 | # |
57f77285 |
335 | # Table constraints |
336 | # |
57f77285 |
337 | for my $c ( $table->get_constraints ) { |
338 | my $name = $c->name || ''; |
339 | my @fields = map { unreserve( $_, $table_name ) } $c->fields; |
340 | my @rfields = map { unreserve( $_, $table_name ) } |
341 | $c->reference_fields; |
4dfb0380 |
342 | next if !@fields && $c->type ne CHECK_C; |
57f77285 |
343 | |
344 | if ( $c->type eq PRIMARY_KEY ) { |
d4977f1c |
345 | # create a name if delay_constraints |
346 | $name ||= mk_name( $table_name, 'pk' ) |
347 | if $options->{delay_constraints}; |
54e61f1f |
348 | push @constraint_defs, ($name ? "CONSTRAINT $name " : '') . |
349 | 'PRIMARY KEY (' . join( ', ', @fields ) . ')'; |
57f77285 |
350 | } |
351 | elsif ( $c->type eq UNIQUE ) { |
54e61f1f |
352 | # Don't create UNIQUE constraints identical to the primary key |
353 | if ( my $pk = $table->primary_key ) { |
354 | my $u_fields = join(":", @fields); |
355 | my $pk_fields = join(":", $pk->fields); |
356 | next if $u_fields eq $pk_fields; |
357 | } |
358 | |
359 | $name ||= mk_name( $name || $table_name, 'u' ); |
6d4ce9b6 |
360 | |
b0c196d4 |
361 | for my $f ( $c->fields ) { |
362 | my $field_def = $table->get_field( $f ) or next; |
363 | my $dtype = $translate{ $field_def->data_type } or next; |
364 | if ( $WARN && $dtype =~ /clob/i ) { |
365 | warn "Oracle will not allow UNIQUE constraints on " . |
366 | "CLOB field '" . $field_def->table->name . '.' . |
367 | $field_def->name . ".'\n" |
368 | } |
369 | } |
6d4ce9b6 |
370 | |
57f77285 |
371 | push @constraint_defs, "CONSTRAINT $name UNIQUE " . |
372 | '(' . join( ', ', @fields ) . ')'; |
373 | } |
4dfb0380 |
374 | elsif ( $c->type eq CHECK_C ) { |
54e61f1f |
375 | $name ||= mk_name( $name || $table_name, 'ck' ); |
4dfb0380 |
376 | my $expression = $c->expression || ''; |
377 | push @constraint_defs, "CONSTRAINT $name CHECK ($expression)"; |
378 | } |
57f77285 |
379 | elsif ( $c->type eq FOREIGN_KEY ) { |
541d6e24 |
380 | $name = mk_name( join('_', $table_name, $c->fields). '_fk' ); |
cd617ba8 |
381 | my $def = "CONSTRAINT $name FOREIGN KEY "; |
382 | |
383 | if ( @fields ) { |
1c899510 |
384 | $def .= '(' . join( ', ', @fields ) . ')'; |
cd617ba8 |
385 | } |
386 | |
1c899510 |
387 | my $ref_table = unreserve($c->reference_table); |
388 | |
389 | $def .= " REFERENCES $ref_table"; |
57f77285 |
390 | |
391 | if ( @rfields ) { |
392 | $def .= ' (' . join( ', ', @rfields ) . ')'; |
393 | } |
394 | |
395 | if ( $c->match_type ) { |
396 | $def .= ' MATCH ' . |
397 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
398 | } |
399 | |
400 | if ( $c->on_delete ) { |
401 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
402 | } |
403 | |
541d6e24 |
404 | # disabled by plu 2007-12-29 - doesn't exist for oracle |
405 | #if ( $c->on_update ) { |
406 | # $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
407 | #} |
57f77285 |
408 | |
541d6e24 |
409 | push @fk_defs, sprintf("ALTER TABLE %s ADD %s", $table_name_ur, $def); |
57f77285 |
410 | } |
16dc9970 |
411 | } |
412 | |
413 | # |
414 | # Index Declarations |
415 | # |
57f77285 |
416 | my @index_defs = (); |
57f77285 |
417 | for my $index ( $table->get_indices ) { |
418 | my $index_name = $index->name || ''; |
419 | my $index_type = $index->type || NORMAL; |
44fcd0b5 |
420 | my @fields = map { unreserve( $_, $table_name ) } |
57f77285 |
421 | $index->fields; |
44fcd0b5 |
422 | next unless @fields; |
16dc9970 |
423 | |
bdd8e79a |
424 | my @index_options; |
425 | for my $opt ( $index->options ) { |
426 | if ( ref $opt eq 'HASH' ) { |
427 | my ( $key, $value ) = each %$opt; |
428 | if ( ref $value eq 'ARRAY' ) { |
429 | push @table_options, "$key\n(\n". join ("\n", |
430 | map { " $_->[0]\t$_->[1]" } |
431 | map { [ each %$_ ] } |
432 | @$value |
433 | )."\n)"; |
434 | } |
435 | elsif ( !defined $value ) { |
436 | push @index_options, $key; |
437 | } |
438 | else { |
439 | push @index_options, "$key $value"; |
440 | } |
441 | } |
442 | } |
443 | my $index_options = @index_options |
444 | ? "\n".join("\n", @index_options) : ''; |
445 | |
57f77285 |
446 | if ( $index_type eq PRIMARY_KEY ) { |
6d4ce9b6 |
447 | $index_name = $index_name ? mk_name( $index_name ) |
448 | : mk_name( $table_name, 'pk' ); |
57f77285 |
449 | push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '. |
16dc9970 |
450 | '(' . join( ', ', @fields ) . ')'; |
451 | } |
57f77285 |
452 | elsif ( $index_type eq NORMAL ) { |
6d4ce9b6 |
453 | $index_name = $index_name ? mk_name( $index_name ) |
454 | : mk_name( $table_name, $index_name || 'i' ); |
57f77285 |
455 | push @index_defs, |
da8e499e |
456 | "CREATE INDEX $index_name on $table_name_ur (". |
457 | join( ', ', @fields ). |
4dec2e49 |
458 | ")$index_options"; |
16dc9970 |
459 | } |
041e659f |
460 | elsif ( $index_type eq UNIQUE ) { |
461 | $index_name = $index_name ? mk_name( $index_name ) |
462 | : mk_name( $table_name, $index_name || 'i' ); |
463 | push @index_defs, |
464 | "CREATE UNIQUE INDEX $index_name on $table_name_ur (". |
465 | join( ', ', @fields ). |
4dec2e49 |
466 | ")$index_options"; |
041e659f |
467 | } |
16dc9970 |
468 | else { |
96844cae |
469 | warn "Unknown index type ($index_type) on table $table_name.\n" |
470 | if $WARN; |
16dc9970 |
471 | } |
472 | } |
473 | |
9fc9bfb1 |
474 | if ( my @table_comments = $table->comments ) { |
475 | for my $comment ( @table_comments ) { |
476 | next unless $comment; |
b89d5635 |
477 | $comment =~ s/'/''/g; |
478 | push @field_comments, "COMMENT ON TABLE $table_name_ur is\n '". |
4dec2e49 |
479 | $comment . "'" unless $options->{no_comments} |
9fc9bfb1 |
480 | ; |
481 | } |
482 | } |
483 | |
02c2af3b |
484 | my $table_options = @table_options |
485 | ? "\n".join("\n", @table_options) : ''; |
e56dabb7 |
486 | push @create, "CREATE TABLE $table_name_ur (\n" . |
65ffb46c |
487 | join( ",\n", map { " $_" } @field_defs, |
488 | ($options->{delay_constraints} ? () : @constraint_defs) ) . |
4dec2e49 |
489 | "\n)$table_options"; |
65ffb46c |
490 | |
4dec2e49 |
491 | @constraint_defs = map { 'ALTER TABLE '.$table_name_ur.' ADD '.$_ } |
65ffb46c |
492 | @constraint_defs; |
16dc9970 |
493 | |
96844cae |
494 | if ( $WARN ) { |
495 | if ( %truncated ) { |
496 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
497 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
498 | } |
499 | |
500 | if ( %unreserve ) { |
501 | warn "Encounted " . keys( %unreserve ) . |
502 | " unsafe names in schema (reserved or invalid):\n"; |
503 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
504 | } |
505 | } |
506 | |
65ffb46c |
507 | return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []); |
e56dabb7 |
508 | } |
509 | |
017ac5a7 |
510 | sub alter_field { |
511 | my ($from_field, $to_field, $options) = @_; |
512 | |
513 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
514 | create_field($to_field, $options, {}); |
515 | |
d888d445 |
516 | # Fix ORA-01442 |
517 | if ($to_field->is_nullable && !$from_field->is_nullable) { |
518 | die 'Cannot remove NOT NULL from table field'; |
519 | } elsif (!$from_field->is_nullable && !$to_field->is_nullable) { |
520 | @$field_defs = map { s/ NOT NULL//; $_} @$field_defs; |
521 | } |
522 | |
017ac5a7 |
523 | my $table_name = $to_field->table->name; |
524 | my $table_name_ur = unreserve( $table_name ); |
525 | |
526 | return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )'; |
527 | } |
528 | |
fe9f1470 |
529 | sub add_field { |
530 | my ($new_field, $options) = @_; |
531 | |
532 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
533 | create_field($new_field, $options, {}); |
534 | |
535 | my $table_name = $new_field->table->name; |
536 | my $table_name_ur = unreserve( $table_name ); |
537 | |
538 | my $out = sprintf('ALTER TABLE %s ADD ( %s )', |
539 | $table_name_ur, |
540 | join('', @$field_defs)); |
541 | return $out; |
542 | } |
543 | |
017ac5a7 |
544 | sub create_field { |
545 | my ($field, $options, $field_name_scope) = @_; |
546 | |
547 | my (@create, @field_defs, @trigger_defs, @field_comments); |
548 | |
549 | my $table_name = $field->table->name; |
550 | my $table_name_ur = unreserve( $table_name ); |
551 | |
552 | # |
553 | # Field name |
554 | # |
555 | my $field_name = mk_name( |
556 | $field->name, '', $field_name_scope, 1 |
557 | ); |
558 | |
559 | my $field_name_ur = unreserve( $field_name, $table_name ); |
560 | my $field_def = $field_name_ur; |
561 | $field->name( $field_name_ur ); |
562 | |
563 | # |
564 | # Datatype |
565 | # |
566 | my $check; |
567 | my $data_type = lc $field->data_type; |
568 | my @size = $field->size; |
569 | my %extra = $field->extra; |
570 | my $list = $extra{'list'} || []; |
571 | # \todo deal with embedded quotes |
572 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
573 | |
574 | if ( $data_type eq 'enum' ) { |
575 | $check = "CHECK ($field_name_ur IN ($commalist))"; |
576 | $data_type = 'varchar2'; |
577 | } |
578 | elsif ( $data_type eq 'set' ) { |
579 | # XXX add a CHECK constraint maybe |
580 | # (trickier and slower, than enum :) |
581 | $data_type = 'varchar2'; |
582 | } |
583 | else { |
584 | $data_type = defined $translate{ $data_type } ? |
585 | $translate{ $data_type } : |
586 | $data_type; |
587 | $data_type ||= 'varchar2'; |
588 | } |
e3aac687 |
589 | |
590 | # ensure size is not bigger than max size oracle allows for data type |
591 | if ( defined $max_size{$data_type} ) { |
592 | for ( my $i = 0 ; $i < scalar @size ; $i++ ) { |
593 | my $max = |
594 | ref( $max_size{$data_type} ) eq 'ARRAY' |
595 | ? $max_size{$data_type}->[$i] |
596 | : $max_size{$data_type}; |
597 | $size[$i] = $max if $size[$i] > $max; |
598 | } |
599 | } |
017ac5a7 |
600 | |
601 | # |
602 | # Fixes ORA-02329: column of datatype LOB cannot be |
603 | # unique or a primary key |
604 | # |
605 | if ( $data_type eq 'clob' && $field->is_primary_key ) { |
606 | $data_type = 'varchar2'; |
607 | $size[0] = 4000; |
608 | warn "CLOB cannot be a primary key, changing to VARCHAR2\n" |
609 | if $WARN; |
610 | } |
611 | |
612 | if ( $data_type eq 'clob' && $field->is_unique ) { |
613 | $data_type = 'varchar2'; |
614 | $size[0] = 4000; |
615 | warn "CLOB cannot be a unique key, changing to VARCHAR2\n" |
616 | if $WARN; |
617 | } |
618 | |
619 | # |
620 | # Fixes ORA-00907: missing right parenthesis |
621 | # |
622 | if ( $data_type =~ /(date|clob)/i ) { |
623 | undef @size; |
624 | } |
625 | |
626 | $field_def .= " $data_type"; |
627 | if ( defined $size[0] && $size[0] > 0 ) { |
9190556b |
628 | $field_def .= '(' . join( ',', @size ) . ')'; |
017ac5a7 |
629 | } |
630 | |
631 | # |
632 | # Default value |
633 | # |
634 | my $default = $field->default_value; |
635 | if ( defined $default ) { |
636 | # |
637 | # Wherein we try to catch a string being used as |
638 | # a default value for a numerical field. If "true/false," |
639 | # then sub "1/0," otherwise just test the truthity of the |
640 | # argument and use that (naive?). |
641 | # |
bc8e2aa1 |
642 | if (ref $default and defined $$default) { |
643 | $default = $$default; |
644 | } elsif (ref $default) { |
645 | $default = 'NULL'; |
646 | } elsif ( |
017ac5a7 |
647 | $data_type =~ /^number$/i && |
648 | $default !~ /^-?\d+$/ && |
649 | $default !~ m/null/i |
650 | ) { |
651 | if ( $default =~ /^true$/i ) { |
652 | $default = "'1'"; |
653 | } elsif ( $default =~ /^false$/i ) { |
654 | $default = "'0'"; |
655 | } else { |
656 | $default = $default ? "'1'" : "'0'"; |
657 | } |
658 | } elsif ( |
659 | $data_type =~ /date/ && ( |
660 | $default eq 'current_timestamp' |
661 | || |
662 | $default eq 'now()' |
663 | ) |
664 | ) { |
665 | $default = 'SYSDATE'; |
666 | } else { |
667 | $default = $default =~ m/null/i ? 'NULL' : "'$default'" |
668 | } |
669 | |
670 | $field_def .= " DEFAULT $default", |
671 | } |
672 | |
673 | # |
674 | # Not null constraint |
675 | # |
676 | unless ( $field->is_nullable ) { |
677 | $field_def .= ' NOT NULL'; |
678 | } |
679 | |
680 | $field_def .= " $check" if $check; |
681 | |
682 | # |
683 | # Auto_increment |
684 | # |
685 | if ( $field->is_auto_increment ) { |
686 | my $base_name = $table_name_ur . "_". $field_name; |
687 | my $seq_name = mk_name( $base_name, 'sq' ); |
688 | my $trigger_name = mk_name( $base_name, 'ai' ); |
689 | |
4dec2e49 |
690 | push @create, qq[DROP SEQUENCE $seq_name] if $options->{add_drop_table}; |
691 | push @create, "CREATE SEQUENCE $seq_name"; |
535e5c95 |
692 | my $trigger = |
017ac5a7 |
693 | "CREATE OR REPLACE TRIGGER $trigger_name\n" . |
694 | "BEFORE INSERT ON $table_name_ur\n" . |
695 | "FOR EACH ROW WHEN (\n" . |
696 | " new.$field_name_ur IS NULL". |
697 | " OR new.$field_name_ur = 0\n". |
698 | ")\n". |
699 | "BEGIN\n" . |
700 | " SELECT $seq_name.nextval\n" . |
701 | " INTO :new." . $field->name."\n" . |
702 | " FROM dual;\n" . |
535e5c95 |
703 | "END;\n"; |
704 | |
535e5c95 |
705 | push @trigger_defs, $trigger; |
017ac5a7 |
706 | } |
707 | |
708 | if ( lc $field->data_type eq 'timestamp' ) { |
709 | my $base_name = $table_name_ur . "_". $field_name_ur; |
710 | my $trig_name = mk_name( $base_name, 'ts' ); |
535e5c95 |
711 | my $trigger = |
017ac5a7 |
712 | "CREATE OR REPLACE TRIGGER $trig_name\n". |
713 | "BEFORE INSERT OR UPDATE ON $table_name_ur\n". |
714 | "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n". |
715 | "BEGIN \n". |
716 | " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n". |
535e5c95 |
717 | "END;\n"; |
718 | |
535e5c95 |
719 | push @trigger_defs, $trigger; |
017ac5a7 |
720 | } |
721 | |
722 | push @field_defs, $field_def; |
723 | |
724 | if ( my $comment = $field->comments ) { |
725 | $comment =~ s/'/''/g; |
726 | push @field_comments, |
727 | "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" . |
728 | $comment . "';" unless $options->{no_comments}; |
729 | } |
730 | |
731 | return \@create, \@field_defs, \@trigger_defs, \@field_comments; |
732 | |
733 | } |
734 | |
735 | |
e56dabb7 |
736 | sub create_view { |
64ac5763 |
737 | my ($view, $options) = @_; |
738 | my $view_name = $view->name; |
739 | |
740 | my @create; |
741 | push @create, qq[DROP VIEW $view_name] |
742 | if $options->{add_drop_view}; |
e56dabb7 |
743 | |
64ac5763 |
744 | push @create, sprintf("CREATE VIEW %s AS\n%s", |
745 | $view_name, |
e56dabb7 |
746 | $view->sql); |
747 | |
64ac5763 |
748 | return \@create; |
16dc9970 |
749 | } |
750 | |
d529894e |
751 | # ------------------------------------------------------------------- |
752 | sub mk_name { |
57f77285 |
753 | my $basename = shift || ''; |
754 | my $type = shift || ''; |
1c899510 |
755 | $type = '' if $type =~ /^\d/; |
57f77285 |
756 | my $scope = shift || ''; |
757 | my $critical = shift || ''; |
d529894e |
758 | my $basename_orig = $basename; |
f5087552 |
759 | my $max_name = $type |
760 | ? $max_id_length - (length($type) + 1) |
761 | : $max_id_length; |
96844cae |
762 | $basename = substr( $basename, 0, $max_name ) |
763 | if length( $basename ) > $max_name; |
d529894e |
764 | my $name = $type ? "${type}_$basename" : $basename; |
765 | |
766 | if ( $basename ne $basename_orig and $critical ) { |
767 | my $show_type = $type ? "+'$type'" : ""; |
768 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
96844cae |
769 | "character limit to make '$name'\n" if $WARN; |
770 | $truncated{ $basename_orig } = $name; |
d529894e |
771 | } |
772 | |
773 | $scope ||= \%global_names; |
96844cae |
774 | if ( my $prev = $scope->{ $name } ) { |
775 | my $name_orig = $name; |
b89d5635 |
776 | substr($name, $max_id_length - 2) = "" |
777 | if length( $name ) >= $max_id_length - 1; |
778 | $name .= sprintf( "%02d", $prev++ ); |
96844cae |
779 | |
780 | warn "The name '$name_orig' has been changed to ", |
781 | "'$name' to make it unique.\n" if $WARN; |
782 | |
783 | $scope->{ $name_orig }++; |
784 | } |
785 | |
786 | $scope->{ $name }++; |
d529894e |
787 | return $name; |
788 | } |
789 | |
790 | # ------------------------------------------------------------------- |
791 | sub unreserve { |
57f77285 |
792 | my $name = shift || ''; |
793 | my $schema_obj_name = shift || ''; |
794 | |
96844cae |
795 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
d529894e |
796 | |
797 | # also trap fields that don't begin with a letter |
57f77285 |
798 | return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i; |
d529894e |
799 | |
800 | if ( $schema_obj_name ) { |
801 | ++$unreserve{"$schema_obj_name.$name"}; |
802 | } |
803 | else { |
804 | ++$unreserve{"$name (table name)"}; |
805 | } |
806 | |
807 | my $unreserve = sprintf '%s_', $name; |
808 | return $unreserve.$suffix; |
809 | } |
810 | |
16dc9970 |
811 | 1; |
812 | |
d529894e |
813 | # ------------------------------------------------------------------- |
16dc9970 |
814 | # All bad art is the result of good intentions. |
815 | # Oscar Wilde |
d529894e |
816 | # ------------------------------------------------------------------- |
16dc9970 |
817 | |
ba096dc4 |
818 | =pod |
16dc9970 |
819 | |
d529894e |
820 | =head1 CREDITS |
821 | |
ba096dc4 |
822 | Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora" |
823 | script. |
16dc9970 |
824 | |
825 | =head1 AUTHOR |
826 | |
f997b9ab |
827 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>. |
16dc9970 |
828 | |
829 | =head1 SEE ALSO |
830 | |
ba096dc4 |
831 | SQL::Translator, DDL::Oracle, mysql2ora. |
16dc9970 |
832 | |
833 | =cut |