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f8f0253c |
1 | package SQL::Translator::Producer::PostgreSQL; |
2 | |
3 | # ------------------------------------------------------------------- |
478f608d |
4 | # Copyright (C) 2002-2009 SQLFairy Authors |
f8f0253c |
5 | # |
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 | |
96844cae |
21 | =head1 NAME |
22 | |
23 | SQL::Translator::Producer::PostgreSQL - PostgreSQL producer for SQL::Translator |
24 | |
20770e44 |
25 | =head1 SYNOPSIS |
26 | |
27 | my $t = SQL::Translator->new( parser => '...', producer => 'PostgreSQL' ); |
28 | $t->translate; |
29 | |
30 | =head1 DESCRIPTION |
31 | |
32 | Creates a DDL suitable for PostgreSQL. Very heavily based on the Oracle |
33 | producer. |
34 | |
96844cae |
35 | =cut |
36 | |
f8f0253c |
37 | use strict; |
bfb5a568 |
38 | use warnings; |
da06ac74 |
39 | use vars qw[ $DEBUG $WARN $VERSION %used_names ]; |
11ad2df9 |
40 | $VERSION = '1.59'; |
a25ac5d2 |
41 | $DEBUG = 0 unless defined $DEBUG; |
f8f0253c |
42 | |
8d11f4cb |
43 | use base qw(SQL::Translator::Producer); |
0c43e0a1 |
44 | use SQL::Translator::Schema::Constants; |
7b4b17aa |
45 | use SQL::Translator::Utils qw(debug header_comment parse_dbms_version); |
f8f0253c |
46 | use Data::Dumper; |
47 | |
892573f2 |
48 | my ( %translate, %index_name ); |
bfb5a568 |
49 | my $max_id_length; |
50 | |
51 | BEGIN { |
52 | |
53 | %translate = ( |
d529894e |
54 | # |
55 | # MySQL types |
56 | # |
57 | bigint => 'bigint', |
4328d7bd |
58 | double => 'numeric', |
59 | decimal => 'numeric', |
60 | float => 'numeric', |
d529894e |
61 | int => 'integer', |
62 | mediumint => 'integer', |
63 | smallint => 'smallint', |
64 | tinyint => 'smallint', |
c8c17a58 |
65 | char => 'character', |
da8e499e |
66 | varchar => 'character varying', |
d529894e |
67 | longtext => 'text', |
68 | mediumtext => 'text', |
69 | text => 'text', |
70 | tinytext => 'text', |
71 | tinyblob => 'bytea', |
72 | blob => 'bytea', |
73 | mediumblob => 'bytea', |
74 | longblob => 'bytea', |
da8e499e |
75 | enum => 'character varying', |
76 | set => 'character varying', |
d529894e |
77 | date => 'date', |
78 | datetime => 'timestamp', |
e56dabb7 |
79 | time => 'time', |
d529894e |
80 | timestamp => 'timestamp', |
81 | year => 'date', |
82 | |
83 | # |
84 | # Oracle types |
85 | # |
96844cae |
86 | number => 'integer', |
c8c17a58 |
87 | char => 'character', |
da8e499e |
88 | varchar2 => 'character varying', |
96844cae |
89 | long => 'text', |
90 | CLOB => 'bytea', |
91 | date => 'date', |
92 | |
93 | # |
94 | # Sybase types |
95 | # |
96 | int => 'integer', |
97 | money => 'money', |
da8e499e |
98 | varchar => 'character varying', |
96844cae |
99 | datetime => 'timestamp', |
100 | text => 'text', |
4328d7bd |
101 | real => 'numeric', |
96844cae |
102 | comment => 'text', |
103 | bit => 'bit', |
104 | tinyint => 'smallint', |
4328d7bd |
105 | float => 'numeric', |
d529894e |
106 | ); |
107 | |
bfb5a568 |
108 | $max_id_length = 62; |
109 | } |
96844cae |
110 | my %reserved = map { $_, 1 } qw[ |
111 | ALL ANALYSE ANALYZE AND ANY AS ASC |
112 | BETWEEN BINARY BOTH |
113 | CASE CAST CHECK COLLATE COLUMN CONSTRAINT CROSS |
114 | CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER |
115 | DEFAULT DEFERRABLE DESC DISTINCT DO |
116 | ELSE END EXCEPT |
117 | FALSE FOR FOREIGN FREEZE FROM FULL |
118 | GROUP HAVING |
119 | ILIKE IN INITIALLY INNER INTERSECT INTO IS ISNULL |
120 | JOIN LEADING LEFT LIKE LIMIT |
121 | NATURAL NEW NOT NOTNULL NULL |
122 | OFF OFFSET OLD ON ONLY OR ORDER OUTER OVERLAPS |
123 | PRIMARY PUBLIC REFERENCES RIGHT |
124 | SELECT SESSION_USER SOME TABLE THEN TO TRAILING TRUE |
125 | UNION UNIQUE USER USING VERBOSE WHEN WHERE |
126 | ]; |
d529894e |
127 | |
bfb5a568 |
128 | # my $max_id_length = 62; |
96844cae |
129 | my %used_identifiers = (); |
130 | my %global_names; |
131 | my %unreserve; |
132 | my %truncated; |
133 | |
134 | =pod |
135 | |
136 | =head1 PostgreSQL Create Table Syntax |
137 | |
138 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
139 | { column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ] |
140 | | table_constraint } [, ... ] |
141 | ) |
142 | [ INHERITS ( parent_table [, ... ] ) ] |
143 | [ WITH OIDS | WITHOUT OIDS ] |
144 | |
145 | where column_constraint is: |
146 | |
147 | [ CONSTRAINT constraint_name ] |
148 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
149 | CHECK (expression) | |
150 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
151 | [ ON DELETE action ] [ ON UPDATE action ] } |
152 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
153 | |
154 | and table_constraint is: |
155 | |
156 | [ CONSTRAINT constraint_name ] |
157 | { UNIQUE ( column_name [, ... ] ) | |
158 | PRIMARY KEY ( column_name [, ... ] ) | |
159 | CHECK ( expression ) | |
160 | FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
161 | [ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] } |
162 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
163 | |
da8e499e |
164 | =head1 Create Index Syntax |
165 | |
166 | CREATE [ UNIQUE ] INDEX index_name ON table |
167 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
168 | [ WHERE predicate ] |
169 | CREATE [ UNIQUE ] INDEX index_name ON table |
170 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
171 | [ WHERE predicate ] |
172 | |
96844cae |
173 | =cut |
f8f0253c |
174 | |
96844cae |
175 | # ------------------------------------------------------------------- |
f8f0253c |
176 | sub produce { |
e189562c |
177 | my $translator = shift; |
178 | local $DEBUG = $translator->debug; |
179 | local $WARN = $translator->show_warnings; |
180 | my $no_comments = $translator->no_comments; |
181 | my $add_drop_table = $translator->add_drop_table; |
182 | my $schema = $translator->schema; |
183 | my $pargs = $translator->producer_args; |
7b4b17aa |
184 | my $postgres_version = parse_dbms_version( |
185 | $pargs->{postgres_version}, 'perl' |
186 | ); |
96844cae |
187 | |
e189562c |
188 | my $qt = $translator->quote_table_names ? q{"} : q{}; |
189 | my $qf = $translator->quote_field_names ? q{"} : q{}; |
bfb5a568 |
190 | |
bf75adec |
191 | my @output; |
192 | push @output, header_comment unless ($no_comments); |
96844cae |
193 | |
08d91aad |
194 | my (@table_defs, @fks); |
0c43e0a1 |
195 | for my $table ( $schema->get_tables ) { |
08d91aad |
196 | |
e189562c |
197 | my ($table_def, $fks) = create_table($table, { |
198 | quote_table_names => $qt, |
199 | quote_field_names => $qf, |
200 | no_comments => $no_comments, |
201 | postgres_version => $postgres_version, |
202 | add_drop_table => $add_drop_table, |
203 | }); |
204 | |
08d91aad |
205 | push @table_defs, $table_def; |
206 | push @fks, @$fks; |
da8e499e |
207 | } |
208 | |
296c2701 |
209 | for my $view ( $schema->get_views ) { |
210 | push @table_defs, create_view($view, { |
a25ac5d2 |
211 | add_drop_view => $add_drop_table, |
296c2701 |
212 | quote_table_names => $qt, |
213 | quote_field_names => $qf, |
214 | no_comments => $no_comments, |
215 | }); |
216 | } |
217 | |
bf75adec |
218 | push @output, map { "$_;\n\n" } @table_defs; |
08d91aad |
219 | if ( @fks ) { |
bf75adec |
220 | push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; |
221 | push @output, map { "$_;\n\n" } @fks; |
08d91aad |
222 | } |
021dbce8 |
223 | |
da8e499e |
224 | if ( $WARN ) { |
225 | if ( %truncated ) { |
226 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
227 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
228 | } |
229 | |
230 | if ( %unreserve ) { |
231 | warn "Encounted " . keys( %unreserve ) . |
232 | " unsafe names in schema (reserved or invalid):\n"; |
233 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
234 | } |
f8f0253c |
235 | } |
236 | |
bf75adec |
237 | return wantarray |
238 | ? @output |
239 | : join ('', @output); |
f8f0253c |
240 | } |
241 | |
96844cae |
242 | # ------------------------------------------------------------------- |
243 | sub mk_name { |
0c43e0a1 |
244 | my $basename = shift || ''; |
245 | my $type = shift || ''; |
246 | my $scope = shift || ''; |
247 | my $critical = shift || ''; |
96844cae |
248 | my $basename_orig = $basename; |
bfb5a568 |
249 | # my $max_id_length = 62; |
2ad4c2c8 |
250 | my $max_name = $type |
251 | ? $max_id_length - (length($type) + 1) |
252 | : $max_id_length; |
96844cae |
253 | $basename = substr( $basename, 0, $max_name ) |
254 | if length( $basename ) > $max_name; |
255 | my $name = $type ? "${type}_$basename" : $basename; |
256 | |
257 | if ( $basename ne $basename_orig and $critical ) { |
258 | my $show_type = $type ? "+'$type'" : ""; |
259 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
260 | "character limit to make '$name'\n" if $WARN; |
261 | $truncated{ $basename_orig } = $name; |
262 | } |
263 | |
264 | $scope ||= \%global_names; |
265 | if ( my $prev = $scope->{ $name } ) { |
266 | my $name_orig = $name; |
267 | $name .= sprintf( "%02d", ++$prev ); |
268 | substr($name, $max_id_length - 3) = "00" |
269 | if length( $name ) > $max_id_length; |
270 | |
271 | warn "The name '$name_orig' has been changed to ", |
272 | "'$name' to make it unique.\n" if $WARN; |
273 | |
274 | $scope->{ $name_orig }++; |
f8f0253c |
275 | } |
96844cae |
276 | |
277 | $scope->{ $name }++; |
278 | return $name; |
279 | } |
280 | |
281 | # ------------------------------------------------------------------- |
282 | sub unreserve { |
0c43e0a1 |
283 | my $name = shift || ''; |
284 | my $schema_obj_name = shift || ''; |
285 | |
96844cae |
286 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
287 | |
288 | # also trap fields that don't begin with a letter |
bfb5a568 |
289 | return $name if (!$reserved{ uc $name }) && $name =~ /^[a-z]/i; |
96844cae |
290 | |
291 | if ( $schema_obj_name ) { |
292 | ++$unreserve{"$schema_obj_name.$name"}; |
293 | } |
294 | else { |
295 | ++$unreserve{"$name (table name)"}; |
296 | } |
297 | |
298 | my $unreserve = sprintf '%s_', $name; |
299 | return $unreserve.$suffix; |
f8f0253c |
300 | } |
301 | |
50840472 |
302 | # ------------------------------------------------------------------- |
303 | sub next_unused_name { |
f5191f69 |
304 | my $orig_name = shift or return; |
305 | my $name = $orig_name; |
306 | |
307 | my $suffix_gen = sub { |
308 | my $suffix = 0; |
309 | return ++$suffix ? '' : $suffix; |
310 | }; |
999859d7 |
311 | |
f5191f69 |
312 | for (;;) { |
313 | $name = $orig_name . $suffix_gen->(); |
314 | last if $used_names{ $name }++; |
50840472 |
315 | } |
f5191f69 |
316 | |
50840472 |
317 | return $name; |
318 | } |
319 | |
bfb5a568 |
320 | sub create_table |
321 | { |
322 | my ($table, $options) = @_; |
323 | |
324 | my $qt = $options->{quote_table_names} || ''; |
325 | my $qf = $options->{quote_field_names} || ''; |
326 | my $no_comments = $options->{no_comments} || 0; |
327 | my $add_drop_table = $options->{add_drop_table} || 0; |
5342f5c1 |
328 | my $postgres_version = $options->{postgres_version} || 0; |
bfb5a568 |
329 | |
3406fd5b |
330 | my $table_name = $table->name or next; |
3406fd5b |
331 | my ( $fql_tbl_name ) = ( $table_name =~ s/\W(.*)$// ) ? $1 : q{}; |
332 | my $table_name_ur = $qt ? $table_name |
333 | : $fql_tbl_name ? join('.', $table_name, unreserve($fql_tbl_name)) |
334 | : unreserve($table_name); |
bfb5a568 |
335 | $table->name($table_name_ur); |
336 | |
124b192c |
337 | # print STDERR "$table_name table_name\n"; |
5342f5c1 |
338 | my ( @comments, @field_defs, @sequence_defs, @constraint_defs, @type_defs, @type_drops, @fks ); |
bfb5a568 |
339 | |
7ed7402c |
340 | push @comments, "--\n-- Table: $table_name_ur\n--\n" unless $no_comments; |
bfb5a568 |
341 | |
342 | if ( $table->comments and !$no_comments ){ |
343 | my $c = "-- Comments: \n-- "; |
344 | $c .= join "\n-- ", $table->comments; |
7ed7402c |
345 | $c .= "\n--\n"; |
bfb5a568 |
346 | push @comments, $c; |
347 | } |
348 | |
349 | # |
350 | # Fields |
351 | # |
352 | my %field_name_scope; |
353 | for my $field ( $table->get_fields ) { |
354 | push @field_defs, create_field($field, { quote_table_names => $qt, |
355 | quote_field_names => $qf, |
356 | table_name => $table_name_ur, |
5342f5c1 |
357 | postgres_version => $postgres_version, |
358 | type_defs => \@type_defs, |
359 | type_drops => \@type_drops, |
bfb5a568 |
360 | constraint_defs => \@constraint_defs,}); |
361 | } |
362 | |
363 | # |
364 | # Index Declarations |
365 | # |
366 | my @index_defs = (); |
367 | # my $idx_name_default; |
368 | for my $index ( $table->get_indices ) { |
369 | my ($idef, $constraints) = create_index($index, |
370 | { |
371 | quote_field_names => $qf, |
372 | quote_table_names => $qt, |
373 | table_name => $table_name, |
374 | }); |
7ed7402c |
375 | $idef and push @index_defs, $idef; |
bfb5a568 |
376 | push @constraint_defs, @$constraints; |
377 | } |
378 | |
379 | # |
380 | # Table constraints |
381 | # |
382 | my $c_name_default; |
383 | for my $c ( $table->get_constraints ) { |
384 | my ($cdefs, $fks) = create_constraint($c, |
385 | { |
386 | quote_field_names => $qf, |
387 | quote_table_names => $qt, |
388 | table_name => $table_name, |
389 | }); |
390 | push @constraint_defs, @$cdefs; |
391 | push @fks, @$fks; |
392 | } |
393 | |
3e98f7d9 |
394 | |
395 | my $temporary = ""; |
396 | |
397 | if(exists $table->{extra}{temporary}) { |
398 | $temporary = $table->{extra}{temporary} ? "TEMPORARY " : ""; |
399 | } |
400 | |
bfb5a568 |
401 | my $create_statement; |
402 | $create_statement = join("\n", @comments); |
5342f5c1 |
403 | if ($add_drop_table) { |
7b4b17aa |
404 | if ($postgres_version >= 8.002) { |
5342f5c1 |
405 | $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n]; |
938464ee |
406 | $create_statement .= join (";\n", @type_drops) . ";\n" |
7b4b17aa |
407 | if $postgres_version >= 8.003 && scalar @type_drops; |
5342f5c1 |
408 | } else { |
409 | $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n]; |
410 | } |
411 | } |
938464ee |
412 | $create_statement .= join(";\n", @type_defs) . ";\n" |
7b4b17aa |
413 | if $postgres_version >= 8.003 && scalar @type_defs; |
3e98f7d9 |
414 | $create_statement .= qq[CREATE ${temporary}TABLE $qt$table_name_ur$qt (\n]. |
bfb5a568 |
415 | join( ",\n", map { " $_" } @field_defs, @constraint_defs ). |
3406fd5b |
416 | "\n)" |
bfb5a568 |
417 | ; |
3406fd5b |
418 | $create_statement .= @index_defs ? ';' : q{}; |
419 | $create_statement .= ( $create_statement =~ /;$/ ? "\n" : q{} ) |
420 | . join(";\n", @index_defs); |
bfb5a568 |
421 | |
08d91aad |
422 | return $create_statement, \@fks; |
bfb5a568 |
423 | } |
424 | |
296c2701 |
425 | sub create_view { |
426 | my ($view, $options) = @_; |
427 | my $qt = $options->{quote_table_names} || ''; |
428 | my $qf = $options->{quote_field_names} || ''; |
a25ac5d2 |
429 | my $add_drop_view = $options->{add_drop_view}; |
296c2701 |
430 | |
431 | my $view_name = $view->name; |
432 | debug("PKG: Looking at view '${view_name}'\n"); |
433 | |
434 | my $create = ''; |
435 | $create .= "--\n-- View: ${qt}${view_name}${qt}\n--\n" |
436 | unless $options->{no_comments}; |
a25ac5d2 |
437 | $create .= "DROP VIEW ${qt}${view_name}${qt};\n" if $add_drop_view; |
296c2701 |
438 | $create .= 'CREATE'; |
296c2701 |
439 | |
440 | my $extra = $view->extra; |
441 | $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary}; |
442 | $create .= " VIEW ${qt}${view_name}${qt}"; |
443 | |
444 | if ( my @fields = $view->fields ) { |
445 | my $field_list = join ', ', map { "${qf}${_}${qf}" } @fields; |
446 | $create .= " ( ${field_list} )"; |
447 | } |
448 | |
449 | if ( my $sql = $view->sql ) { |
f59b2c0e |
450 | $create .= " AS\n ${sql}\n"; |
296c2701 |
451 | } |
452 | |
453 | if ( $extra->{check_option} ) { |
454 | $create .= ' WITH ' . uc $extra->{check_option} . ' CHECK OPTION'; |
455 | } |
456 | |
296c2701 |
457 | return $create; |
458 | } |
459 | |
bfb5a568 |
460 | { |
461 | |
462 | my %field_name_scope; |
463 | |
464 | sub create_field |
465 | { |
466 | my ($field, $options) = @_; |
467 | |
468 | my $qt = $options->{quote_table_names} || ''; |
469 | my $qf = $options->{quote_field_names} || ''; |
470 | my $table_name = $field->table->name; |
471 | my $constraint_defs = $options->{constraint_defs} || []; |
5342f5c1 |
472 | my $postgres_version = $options->{postgres_version} || 0; |
473 | my $type_defs = $options->{type_defs} || []; |
474 | my $type_drops = $options->{type_drops} || []; |
bfb5a568 |
475 | |
476 | $field_name_scope{$table_name} ||= {}; |
912e67a1 |
477 | my $field_name = $field->name; |
08d91aad |
478 | my $field_name_ur = $qf ? $field_name : unreserve($field_name, $table_name ); |
bfb5a568 |
479 | $field->name($field_name_ur); |
480 | my $field_comments = $field->comments |
481 | ? "-- " . $field->comments . "\n " |
482 | : ''; |
483 | |
484 | my $field_def = $field_comments.qq[$qf$field_name_ur$qf]; |
485 | |
486 | # |
487 | # Datatype |
488 | # |
489 | my @size = $field->size; |
490 | my $data_type = lc $field->data_type; |
491 | my %extra = $field->extra; |
492 | my $list = $extra{'list'} || []; |
493 | # todo deal with embedded quotes |
494 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
bfb5a568 |
495 | |
7b4b17aa |
496 | if ($postgres_version >= 8.003 && $field->data_type eq 'enum') { |
5342f5c1 |
497 | my $type_name = $field->table->name . '_' . $field->name . '_type'; |
498 | $field_def .= ' '. $type_name; |
3406fd5b |
499 | push @$type_defs, "CREATE TYPE $type_name AS ENUM ($commalist)"; |
500 | push @$type_drops, "DROP TYPE IF EXISTS $type_name"; |
5342f5c1 |
501 | } else { |
502 | $field_def .= ' '. convert_datatype($field); |
503 | } |
bfb5a568 |
504 | |
505 | # |
bc8e2aa1 |
506 | # Default value |
bfb5a568 |
507 | # |
06baeb21 |
508 | SQL::Translator::Producer->_apply_default_value( |
509 | $field, |
510 | \$field_def, |
511 | [ |
512 | 'NULL' => \'NULL', |
513 | 'now()' => 'now()', |
514 | 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', |
515 | ], |
516 | ); |
bfb5a568 |
517 | |
518 | # |
519 | # Not null constraint |
520 | # |
521 | $field_def .= ' NOT NULL' unless $field->is_nullable; |
522 | |
523 | return $field_def; |
524 | } |
525 | } |
526 | |
892573f2 |
527 | sub create_index |
528 | { |
529 | my ($index, $options) = @_; |
bfb5a568 |
530 | |
892573f2 |
531 | my $qt = $options->{quote_table_names} ||''; |
532 | my $qf = $options->{quote_field_names} ||''; |
533 | my $table_name = $index->table->name; |
124b192c |
534 | # my $table_name_ur = $qt ? unreserve($table_name) : $table_name; |
bfb5a568 |
535 | |
892573f2 |
536 | my ($index_def, @constraint_defs); |
bfb5a568 |
537 | |
892573f2 |
538 | my $name = next_unused_name( |
539 | $index->name |
540 | || join('_', $table_name, 'idx', ++$index_name{ $table_name }) |
541 | ); |
bfb5a568 |
542 | |
892573f2 |
543 | my $type = $index->type || NORMAL; |
544 | my @fields = |
545 | map { $_ =~ s/\(.+\)//; $_ } |
546 | map { $qt ? $_ : unreserve($_, $table_name ) } |
547 | $index->fields; |
548 | next unless @fields; |
bfb5a568 |
549 | |
892573f2 |
550 | my $def_start = qq[CONSTRAINT "$name" ]; |
551 | if ( $type eq PRIMARY_KEY ) { |
552 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
553 | '(' .$qf . join( $qf. ', '.$qf, @fields ) . $qf . ')'; |
554 | } |
555 | elsif ( $type eq UNIQUE ) { |
556 | push @constraint_defs, "${def_start}UNIQUE " . |
557 | '(' . $qf . join( $qf. ', '.$qf, @fields ) . $qf.')'; |
558 | } |
559 | elsif ( $type eq NORMAL ) { |
560 | $index_def = |
561 | "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} (". |
562 | join( ', ', map { qq[$qf$_$qf] } @fields ). |
563 | ')' |
564 | ; |
565 | } |
566 | else { |
567 | warn "Unknown index type ($type) on table $table_name.\n" |
568 | if $WARN; |
124b192c |
569 | } |
bfb5a568 |
570 | |
892573f2 |
571 | return $index_def, \@constraint_defs; |
572 | } |
bfb5a568 |
573 | |
892573f2 |
574 | sub create_constraint |
575 | { |
576 | my ($c, $options) = @_; |
bfb5a568 |
577 | |
892573f2 |
578 | my $qf = $options->{quote_field_names} ||''; |
579 | my $qt = $options->{quote_table_names} ||''; |
580 | my $table_name = $c->table->name; |
581 | my (@constraint_defs, @fks); |
bfb5a568 |
582 | |
892573f2 |
583 | my $name = $c->name || ''; |
584 | if ( $name ) { |
585 | $name = next_unused_name($name); |
586 | } |
bfb5a568 |
587 | |
892573f2 |
588 | my @fields = |
589 | map { $_ =~ s/\(.+\)//; $_ } |
590 | map { $qt ? $_ : unreserve( $_, $table_name )} |
591 | $c->fields; |
592 | |
593 | my @rfields = |
594 | map { $_ =~ s/\(.+\)//; $_ } |
595 | map { $qt ? $_ : unreserve( $_, $table_name )} |
596 | $c->reference_fields; |
597 | |
598 | next if !@fields && $c->type ne CHECK_C; |
599 | my $def_start = $name ? qq[CONSTRAINT "$name" ] : ''; |
600 | if ( $c->type eq PRIMARY_KEY ) { |
601 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
602 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
603 | } |
604 | elsif ( $c->type eq UNIQUE ) { |
605 | $name = next_unused_name($name); |
606 | push @constraint_defs, "${def_start}UNIQUE " . |
607 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
608 | } |
609 | elsif ( $c->type eq CHECK_C ) { |
610 | my $expression = $c->expression; |
611 | push @constraint_defs, "${def_start}CHECK ($expression)"; |
612 | } |
613 | elsif ( $c->type eq FOREIGN_KEY ) { |
614 | my $def .= "ALTER TABLE ${qt}${table_name}${qt} ADD FOREIGN KEY (" . |
615 | join( ', ', map { qq[$qf$_$qf] } @fields ) . ')' . |
616 | "\n REFERENCES " . $qt . $c->reference_table . $qt; |
bfb5a568 |
617 | |
892573f2 |
618 | if ( @rfields ) { |
619 | $def .= ' ('.$qf . join( $qf.', '.$qf, @rfields ) . $qf.')'; |
620 | } |
bfb5a568 |
621 | |
892573f2 |
622 | if ( $c->match_type ) { |
623 | $def .= ' MATCH ' . |
624 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
625 | } |
5342f5c1 |
626 | |
892573f2 |
627 | if ( $c->on_delete ) { |
628 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
629 | } |
bfb5a568 |
630 | |
892573f2 |
631 | if ( $c->on_update ) { |
632 | $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
633 | } |
124b192c |
634 | |
892573f2 |
635 | if ( $c->deferrable ) { |
636 | $def .= ' DEFERRABLE'; |
124b192c |
637 | } |
638 | |
892573f2 |
639 | push @fks, "$def"; |
124b192c |
640 | } |
bfb5a568 |
641 | |
892573f2 |
642 | return \@constraint_defs, \@fks; |
643 | } |
644 | |
bfb5a568 |
645 | sub convert_datatype |
646 | { |
647 | my ($field) = @_; |
648 | |
649 | my @size = $field->size; |
650 | my $data_type = lc $field->data_type; |
651 | |
652 | if ( $data_type eq 'enum' ) { |
653 | # my $len = 0; |
654 | # $len = ($len < length($_)) ? length($_) : $len for (@$list); |
655 | # my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); |
656 | # push @$constraint_defs, |
3406fd5b |
657 | # qq[CONSTRAINT "$chk_name" CHECK ($qf$field_name$qf ]. |
bfb5a568 |
658 | # qq[IN ($commalist))]; |
659 | $data_type = 'character varying'; |
660 | } |
661 | elsif ( $data_type eq 'set' ) { |
662 | $data_type = 'character varying'; |
663 | } |
664 | elsif ( $field->is_auto_increment ) { |
665 | if ( defined $size[0] && $size[0] > 11 ) { |
666 | $data_type = 'bigserial'; |
667 | } |
668 | else { |
669 | $data_type = 'serial'; |
670 | } |
671 | undef @size; |
672 | } |
673 | else { |
674 | $data_type = defined $translate{ $data_type } ? |
675 | $translate{ $data_type } : |
676 | $data_type; |
677 | } |
678 | |
ad258776 |
679 | if ( $data_type =~ /^time/i || $data_type =~ /^interval/i ) { |
bfb5a568 |
680 | if ( defined $size[0] && $size[0] > 6 ) { |
681 | $size[0] = 6; |
682 | } |
683 | } |
684 | |
685 | if ( $data_type eq 'integer' ) { |
686 | if ( defined $size[0] && $size[0] > 0) { |
687 | if ( $size[0] > 10 ) { |
688 | $data_type = 'bigint'; |
689 | } |
690 | elsif ( $size[0] < 5 ) { |
691 | $data_type = 'smallint'; |
692 | } |
693 | else { |
694 | $data_type = 'integer'; |
695 | } |
696 | } |
697 | else { |
698 | $data_type = 'integer'; |
699 | } |
700 | } |
52bc2e13 |
701 | |
702 | my $type_with_size = join('|', |
e189562c |
703 | 'bit', 'varbit', 'character', 'bit varying', 'character varying', |
c3bddac9 |
704 | 'time', 'timestamp', 'interval', 'numeric' |
52bc2e13 |
705 | ); |
706 | |
707 | if ( $data_type !~ /$type_with_size/ ) { |
708 | @size = (); |
e56dabb7 |
709 | } |
bfb5a568 |
710 | |
ad258776 |
711 | if (defined $size[0] && $size[0] > 0 && $data_type =~ /^time/i ) { |
712 | $data_type =~ s/^(time.*?)( with.*)?$/$1($size[0])/; |
713 | $data_type .= $2 if(defined $2); |
714 | } elsif ( defined $size[0] && $size[0] > 0 ) { |
e189562c |
715 | $data_type .= '(' . join( ',', @size ) . ')'; |
08d91aad |
716 | } |
bfb5a568 |
717 | |
718 | return $data_type; |
719 | } |
720 | |
721 | |
722 | sub alter_field |
723 | { |
724 | my ($from_field, $to_field) = @_; |
725 | |
726 | die "Can't alter field in another table" |
727 | if($from_field->table->name ne $to_field->table->name); |
728 | |
729 | my @out; |
3406fd5b |
730 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', |
bfb5a568 |
731 | $to_field->table->name, |
732 | $to_field->name) if(!$to_field->is_nullable and |
733 | $from_field->is_nullable); |
734 | |
90726ffd |
735 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP NOT NULL', |
736 | $to_field->table->name, |
737 | $to_field->name) |
738 | if ( !$from_field->is_nullable and $to_field->is_nullable ); |
739 | |
740 | |
bfb5a568 |
741 | my $from_dt = convert_datatype($from_field); |
742 | my $to_dt = convert_datatype($to_field); |
3406fd5b |
743 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', |
bfb5a568 |
744 | $to_field->table->name, |
745 | $to_field->name, |
746 | $to_dt) if($to_dt ne $from_dt); |
747 | |
3406fd5b |
748 | push @out, sprintf('ALTER TABLE %s RENAME COLUMN %s TO %s', |
bfb5a568 |
749 | $to_field->table->name, |
750 | $from_field->name, |
751 | $to_field->name) if($from_field->name ne $to_field->name); |
752 | |
3406fd5b |
753 | my $old_default = $from_field->default_value; |
754 | my $new_default = $to_field->default_value; |
90726ffd |
755 | my $default_value = $to_field->default_value; |
756 | |
757 | # fixes bug where output like this was created: |
758 | # ALTER TABLE users ALTER COLUMN column SET DEFAULT ThisIsUnescaped; |
759 | if(ref $default_value eq "SCALAR" ) { |
760 | $default_value = $$default_value; |
761 | } elsif( defined $default_value && $to_dt =~ /^(character|text)/xsmi ) { |
762 | $default_value =~ s/'/''/xsmg; |
763 | $default_value = q(') . $default_value . q('); |
764 | } |
765 | |
3406fd5b |
766 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', |
bfb5a568 |
767 | $to_field->table->name, |
768 | $to_field->name, |
90726ffd |
769 | $default_value) |
3406fd5b |
770 | if ( defined $new_default && |
771 | (!defined $old_default || $old_default ne $new_default) ); |
bfb5a568 |
772 | |
90726ffd |
773 | # fixes bug where removing the DEFAULT statement of a column |
774 | # would result in no change |
775 | |
776 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP DEFAULT', |
777 | $to_field->table->name, |
778 | $to_field->name) |
779 | if ( !defined $new_default && defined $old_default ); |
780 | |
781 | |
bfb5a568 |
782 | return wantarray ? @out : join("\n", @out); |
bfb5a568 |
783 | } |
784 | |
3406fd5b |
785 | sub rename_field { alter_field(@_) } |
786 | |
bfb5a568 |
787 | sub add_field |
788 | { |
789 | my ($new_field) = @_; |
790 | |
3406fd5b |
791 | my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', |
bfb5a568 |
792 | $new_field->table->name, |
793 | create_field($new_field)); |
794 | return $out; |
795 | |
796 | } |
797 | |
798 | sub drop_field |
799 | { |
800 | my ($old_field) = @_; |
801 | |
3406fd5b |
802 | my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', |
bfb5a568 |
803 | $old_field->table->name, |
804 | $old_field->name); |
805 | |
806 | return $out; |
807 | } |
808 | |
3406fd5b |
809 | sub alter_table { |
810 | my ($to_table, $options) = @_; |
811 | my $qt = $options->{quote_table_names} || ''; |
812 | my $out = sprintf('ALTER TABLE %s %s', |
813 | $qt . $to_table->name . $qt, |
814 | $options->{alter_table_action}); |
815 | return $out; |
816 | } |
817 | |
818 | sub rename_table { |
819 | my ($old_table, $new_table, $options) = @_; |
820 | my $qt = $options->{quote_table_names} || ''; |
821 | $options->{alter_table_action} = "RENAME TO $qt$new_table$qt"; |
822 | return alter_table($old_table, $options); |
823 | } |
824 | |
825 | sub alter_create_index { |
826 | my ($index, $options) = @_; |
827 | my $qt = $options->{quote_table_names} || ''; |
828 | my $qf = $options->{quote_field_names} || ''; |
829 | my ($idef, $constraints) = create_index($index, { |
830 | quote_field_names => $qf, |
831 | quote_table_names => $qt, |
832 | table_name => $index->table->name, |
833 | }); |
834 | return $index->type eq NORMAL ? $idef |
835 | : sprintf('ALTER TABLE %s ADD %s', |
836 | $qt . $index->table->name . $qt, |
837 | join(q{}, @$constraints) |
838 | ); |
839 | } |
840 | |
841 | sub alter_drop_index { |
842 | my ($index, $options) = @_; |
843 | my $index_name = $index->name; |
844 | return "DROP INDEX $index_name"; |
845 | } |
846 | |
847 | sub alter_drop_constraint { |
848 | my ($c, $options) = @_; |
849 | my $qt = $options->{quote_table_names} || ''; |
850 | my $qc = $options->{quote_field_names} || ''; |
851 | my $out = sprintf('ALTER TABLE %s DROP CONSTRAINT %s', |
852 | $qt . $c->table->name . $qt, |
853 | $qc . $c->name . $qc ); |
854 | return $out; |
855 | } |
856 | |
857 | sub alter_create_constraint { |
858 | my ($index, $options) = @_; |
859 | my $qt = $options->{quote_table_names} || ''; |
90726ffd |
860 | my ($defs, $fks) = create_constraint(@_); |
861 | |
862 | # return if there are no constraint definitions so we don't run |
863 | # into output like this: |
864 | # ALTER TABLE users ADD ; |
865 | |
866 | return unless(@{$defs} || @{$fks}); |
867 | return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks}) |
3406fd5b |
868 | : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt, |
90726ffd |
869 | 'ADD', join(q{}, @{$defs}, @{$fks}) |
3406fd5b |
870 | ); |
871 | } |
872 | |
873 | sub drop_table { |
874 | my ($table, $options) = @_; |
875 | my $qt = $options->{quote_table_names} || ''; |
876 | return "DROP TABLE $qt$table$qt CASCADE"; |
877 | } |
878 | |
f8f0253c |
879 | 1; |
f8f0253c |
880 | |
96844cae |
881 | # ------------------------------------------------------------------- |
882 | # Life is full of misery, loneliness, and suffering -- |
883 | # and it's all over much too soon. |
884 | # Woody Allen |
885 | # ------------------------------------------------------------------- |
f8f0253c |
886 | |
96844cae |
887 | =pod |
f8f0253c |
888 | |
20770e44 |
889 | =head1 SEE ALSO |
890 | |
891 | SQL::Translator, SQL::Translator::Producer::Oracle. |
892 | |
f8f0253c |
893 | =head1 AUTHOR |
894 | |
f997b9ab |
895 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>. |
f8f0253c |
896 | |
897 | =cut |