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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 ]; |
40 | $VERSION = '1.99'; |
a25ac5d2 |
41 | $DEBUG = 0 unless defined $DEBUG; |
f8f0253c |
42 | |
8d11f4cb |
43 | use base qw(SQL::Translator::Producer); |
0c43e0a1 |
44 | use SQL::Translator::Schema::Constants; |
296c2701 |
45 | use SQL::Translator::Utils qw(debug header_comment); |
f8f0253c |
46 | use Data::Dumper; |
47 | |
bfb5a568 |
48 | my %translate; |
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 { |
a1d94525 |
177 | my $translator = shift; |
a25ac5d2 |
178 | local $DEBUG = $translator->debug; |
179 | local $WARN = $translator->show_warnings; |
a1d94525 |
180 | my $no_comments = $translator->no_comments; |
181 | my $add_drop_table = $translator->add_drop_table; |
182 | my $schema = $translator->schema; |
5342f5c1 |
183 | my $pargs = $translator->producer_args; |
999859d7 |
184 | local %used_names = (); |
5342f5c1 |
185 | |
186 | my $postgres_version = $pargs->{postgres_version} || 0; |
96844cae |
187 | |
bfb5a568 |
188 | my $qt = ''; |
189 | $qt = '"' if ($translator->quote_table_names); |
190 | my $qf = ''; |
191 | $qf = '"' if ($translator->quote_field_names); |
192 | |
da8e499e |
193 | my $output; |
5ee19df8 |
194 | $output .= header_comment unless ($no_comments); |
96844cae |
195 | |
08d91aad |
196 | my (@table_defs, @fks); |
0c43e0a1 |
197 | for my $table ( $schema->get_tables ) { |
08d91aad |
198 | |
199 | my ($table_def, $fks) = create_table($table, |
200 | { quote_table_names => $qt, |
201 | quote_field_names => $qf, |
202 | no_comments => $no_comments, |
5342f5c1 |
203 | postgres_version => $postgres_version, |
08d91aad |
204 | add_drop_table => $add_drop_table,}); |
205 | push @table_defs, $table_def; |
206 | push @fks, @$fks; |
207 | |
da8e499e |
208 | } |
209 | |
296c2701 |
210 | for my $view ( $schema->get_views ) { |
211 | push @table_defs, create_view($view, { |
a25ac5d2 |
212 | add_drop_view => $add_drop_table, |
296c2701 |
213 | quote_table_names => $qt, |
214 | quote_field_names => $qf, |
215 | no_comments => $no_comments, |
216 | }); |
217 | } |
218 | |
3406fd5b |
219 | $output = join(";\n\n", @table_defs) . ";\n\n"; |
08d91aad |
220 | if ( @fks ) { |
221 | $output .= "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; |
3406fd5b |
222 | $output .= join( ";\n\n", @fks ) . ";\n"; |
08d91aad |
223 | } |
021dbce8 |
224 | |
da8e499e |
225 | if ( $WARN ) { |
226 | if ( %truncated ) { |
227 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
228 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
229 | } |
230 | |
231 | if ( %unreserve ) { |
232 | warn "Encounted " . keys( %unreserve ) . |
233 | " unsafe names in schema (reserved or invalid):\n"; |
234 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
235 | } |
f8f0253c |
236 | } |
237 | |
da8e499e |
238 | return $output; |
f8f0253c |
239 | } |
240 | |
96844cae |
241 | # ------------------------------------------------------------------- |
242 | sub mk_name { |
0c43e0a1 |
243 | my $basename = shift || ''; |
244 | my $type = shift || ''; |
245 | my $scope = shift || ''; |
246 | my $critical = shift || ''; |
96844cae |
247 | my $basename_orig = $basename; |
bfb5a568 |
248 | # my $max_id_length = 62; |
2ad4c2c8 |
249 | my $max_name = $type |
250 | ? $max_id_length - (length($type) + 1) |
251 | : $max_id_length; |
96844cae |
252 | $basename = substr( $basename, 0, $max_name ) |
253 | if length( $basename ) > $max_name; |
254 | my $name = $type ? "${type}_$basename" : $basename; |
255 | |
256 | if ( $basename ne $basename_orig and $critical ) { |
257 | my $show_type = $type ? "+'$type'" : ""; |
258 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
259 | "character limit to make '$name'\n" if $WARN; |
260 | $truncated{ $basename_orig } = $name; |
261 | } |
262 | |
263 | $scope ||= \%global_names; |
264 | if ( my $prev = $scope->{ $name } ) { |
265 | my $name_orig = $name; |
266 | $name .= sprintf( "%02d", ++$prev ); |
267 | substr($name, $max_id_length - 3) = "00" |
268 | if length( $name ) > $max_id_length; |
269 | |
270 | warn "The name '$name_orig' has been changed to ", |
271 | "'$name' to make it unique.\n" if $WARN; |
272 | |
273 | $scope->{ $name_orig }++; |
f8f0253c |
274 | } |
96844cae |
275 | |
276 | $scope->{ $name }++; |
277 | return $name; |
278 | } |
279 | |
280 | # ------------------------------------------------------------------- |
281 | sub unreserve { |
0c43e0a1 |
282 | my $name = shift || ''; |
283 | my $schema_obj_name = shift || ''; |
284 | |
96844cae |
285 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
286 | |
287 | # also trap fields that don't begin with a letter |
bfb5a568 |
288 | return $name if (!$reserved{ uc $name }) && $name =~ /^[a-z]/i; |
96844cae |
289 | |
290 | if ( $schema_obj_name ) { |
291 | ++$unreserve{"$schema_obj_name.$name"}; |
292 | } |
293 | else { |
294 | ++$unreserve{"$name (table name)"}; |
295 | } |
296 | |
297 | my $unreserve = sprintf '%s_', $name; |
298 | return $unreserve.$suffix; |
f8f0253c |
299 | } |
300 | |
50840472 |
301 | # ------------------------------------------------------------------- |
302 | sub next_unused_name { |
999859d7 |
303 | my $name = shift || ''; |
304 | if ( !defined( $used_names{$name} ) ) { |
50840472 |
305 | $used_names{$name} = $name; |
306 | return $name; |
307 | } |
999859d7 |
308 | |
50840472 |
309 | my $i = 2; |
999859d7 |
310 | while ( defined( $used_names{ $name . $i } ) ) { |
50840472 |
311 | ++$i; |
312 | } |
313 | $name .= $i; |
314 | $used_names{$name} = $name; |
315 | return $name; |
316 | } |
317 | |
999859d7 |
318 | |
bfb5a568 |
319 | sub create_table |
320 | { |
321 | my ($table, $options) = @_; |
322 | |
323 | my $qt = $options->{quote_table_names} || ''; |
324 | my $qf = $options->{quote_field_names} || ''; |
325 | my $no_comments = $options->{no_comments} || 0; |
326 | my $add_drop_table = $options->{add_drop_table} || 0; |
5342f5c1 |
327 | my $postgres_version = $options->{postgres_version} || 0; |
bfb5a568 |
328 | |
3406fd5b |
329 | my $table_name = $table->name or next; |
330 | $table_name = mk_name( $table_name, '', undef, 1 ); |
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 | |
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) { |
404 | if ($postgres_version >= 8.2) { |
405 | $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n]; |
406 | $create_statement .= join ("\n", @type_drops) . "\n" |
407 | if $postgres_version >= 8.3; |
408 | } else { |
409 | $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n]; |
410 | } |
411 | } |
412 | $create_statement .= join("\n", @type_defs) . "\n" |
413 | if $postgres_version >= 8.3; |
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 ) { |
450 | $create .= " AS (\n ${sql}\n )"; |
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} ||= {}; |
477 | my $field_name = mk_name( |
478 | $field->name, '', $field_name_scope{$table_name}, 1 |
479 | ); |
08d91aad |
480 | my $field_name_ur = $qf ? $field_name : unreserve($field_name, $table_name ); |
bfb5a568 |
481 | $field->name($field_name_ur); |
482 | my $field_comments = $field->comments |
483 | ? "-- " . $field->comments . "\n " |
484 | : ''; |
485 | |
486 | my $field_def = $field_comments.qq[$qf$field_name_ur$qf]; |
487 | |
488 | # |
489 | # Datatype |
490 | # |
491 | my @size = $field->size; |
492 | my $data_type = lc $field->data_type; |
493 | my %extra = $field->extra; |
494 | my $list = $extra{'list'} || []; |
495 | # todo deal with embedded quotes |
496 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
bfb5a568 |
497 | |
5342f5c1 |
498 | if ($postgres_version >= 8.3 && $field->data_type eq 'enum') { |
499 | my $type_name = $field->table->name . '_' . $field->name . '_type'; |
500 | $field_def .= ' '. $type_name; |
3406fd5b |
501 | push @$type_defs, "CREATE TYPE $type_name AS ENUM ($commalist)"; |
502 | push @$type_drops, "DROP TYPE IF EXISTS $type_name"; |
5342f5c1 |
503 | } else { |
504 | $field_def .= ' '. convert_datatype($field); |
505 | } |
bfb5a568 |
506 | |
507 | # |
bc8e2aa1 |
508 | # Default value |
bfb5a568 |
509 | # |
f39e9c12 |
510 | my $default = $field->default_value; |
bfb5a568 |
511 | if ( defined $default ) { |
bc8e2aa1 |
512 | SQL::Translator::Producer->_apply_default_value( |
513 | \$field_def, |
514 | $default, |
515 | [ |
516 | 'NULL' => \'NULL', |
517 | 'now()' => 'now()', |
518 | 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', |
519 | ], |
520 | ); |
bfb5a568 |
521 | } |
522 | |
523 | # |
524 | # Not null constraint |
525 | # |
526 | $field_def .= ' NOT NULL' unless $field->is_nullable; |
527 | |
528 | return $field_def; |
529 | } |
530 | } |
531 | |
bfb5a568 |
532 | sub create_index |
533 | { |
534 | my ($index, $options) = @_; |
535 | |
536 | my $qt = $options->{quote_table_names} ||''; |
537 | my $qf = $options->{quote_field_names} ||''; |
538 | my $table_name = $index->table->name; |
08d91aad |
539 | # my $table_name_ur = $qt ? unreserve($table_name) : $table_name; |
bfb5a568 |
540 | |
541 | my ($index_def, @constraint_defs); |
542 | |
bfb5a568 |
543 | my $name = $index->name || ''; |
544 | if ( $name ) { |
999859d7 |
545 | $name = next_unused_name($name); |
bfb5a568 |
546 | } |
547 | |
548 | my $type = $index->type || NORMAL; |
549 | my @fields = |
550 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
551 | map { $qt ? $_ : unreserve($_, $table_name ) } |
bfb5a568 |
552 | $index->fields; |
553 | next unless @fields; |
554 | |
3406fd5b |
555 | my $def_start = qq[CONSTRAINT "$name" ]; |
bfb5a568 |
556 | if ( $type eq PRIMARY_KEY ) { |
557 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
558 | '(' .$qf . join( $qf. ', '.$qf, @fields ) . $qf . ')'; |
559 | } |
560 | elsif ( $type eq UNIQUE ) { |
561 | push @constraint_defs, "${def_start}UNIQUE " . |
562 | '(' . $qf . join( $qf. ', '.$qf, @fields ) . $qf.')'; |
563 | } |
564 | elsif ( $type eq NORMAL ) { |
565 | $index_def = |
08d91aad |
566 | "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} (". |
bfb5a568 |
567 | join( ', ', map { qq[$qf$_$qf] } @fields ). |
3406fd5b |
568 | ')' |
bfb5a568 |
569 | ; |
570 | } |
571 | else { |
572 | warn "Unknown index type ($type) on table $table_name.\n" |
573 | if $WARN; |
574 | } |
575 | |
576 | return $index_def, \@constraint_defs; |
577 | } |
578 | |
579 | sub create_constraint |
580 | { |
581 | my ($c, $options) = @_; |
582 | |
583 | my $qf = $options->{quote_field_names} ||''; |
584 | my $qt = $options->{quote_table_names} ||''; |
585 | my $table_name = $c->table->name; |
586 | my (@constraint_defs, @fks); |
587 | |
588 | my $name = $c->name || ''; |
589 | if ( $name ) { |
999859d7 |
590 | $name = next_unused_name($name); |
bfb5a568 |
591 | } |
592 | |
593 | my @fields = |
594 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
595 | map { $qt ? $_ : unreserve( $_, $table_name )} |
bfb5a568 |
596 | $c->fields; |
597 | |
598 | my @rfields = |
599 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
600 | map { $qt ? $_ : unreserve( $_, $table_name )} |
bfb5a568 |
601 | $c->reference_fields; |
602 | |
603 | next if !@fields && $c->type ne CHECK_C; |
3406fd5b |
604 | my $def_start = $name ? qq[CONSTRAINT "$name" ] : ''; |
bfb5a568 |
605 | if ( $c->type eq PRIMARY_KEY ) { |
606 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
607 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
608 | } |
609 | elsif ( $c->type eq UNIQUE ) { |
999859d7 |
610 | $name = next_unused_name($name); |
bfb5a568 |
611 | push @constraint_defs, "${def_start}UNIQUE " . |
612 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
613 | } |
614 | elsif ( $c->type eq CHECK_C ) { |
615 | my $expression = $c->expression; |
616 | push @constraint_defs, "${def_start}CHECK ($expression)"; |
617 | } |
618 | elsif ( $c->type eq FOREIGN_KEY ) { |
619 | my $def .= "ALTER TABLE ${qt}${table_name}${qt} ADD FOREIGN KEY (" . |
620 | join( ', ', map { qq[$qf$_$qf] } @fields ) . ')' . |
621 | "\n REFERENCES " . $qt . $c->reference_table . $qt; |
622 | |
623 | if ( @rfields ) { |
624 | $def .= ' ('.$qf . join( $qf.', '.$qf, @rfields ) . $qf.')'; |
625 | } |
626 | |
627 | if ( $c->match_type ) { |
628 | $def .= ' MATCH ' . |
629 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
630 | } |
631 | |
632 | if ( $c->on_delete ) { |
633 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
634 | } |
635 | |
636 | if ( $c->on_update ) { |
637 | $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
638 | } |
639 | |
5342f5c1 |
640 | if ( $c->deferrable ) { |
641 | $def .= ' DEFERRABLE'; |
642 | } |
643 | |
3406fd5b |
644 | push @fks, "$def"; |
bfb5a568 |
645 | } |
646 | |
647 | return \@constraint_defs, \@fks; |
648 | } |
bfb5a568 |
649 | |
650 | sub convert_datatype |
651 | { |
652 | my ($field) = @_; |
653 | |
654 | my @size = $field->size; |
655 | my $data_type = lc $field->data_type; |
656 | |
657 | if ( $data_type eq 'enum' ) { |
658 | # my $len = 0; |
659 | # $len = ($len < length($_)) ? length($_) : $len for (@$list); |
660 | # my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); |
661 | # push @$constraint_defs, |
3406fd5b |
662 | # qq[CONSTRAINT "$chk_name" CHECK ($qf$field_name$qf ]. |
bfb5a568 |
663 | # qq[IN ($commalist))]; |
664 | $data_type = 'character varying'; |
665 | } |
666 | elsif ( $data_type eq 'set' ) { |
667 | $data_type = 'character varying'; |
668 | } |
669 | elsif ( $field->is_auto_increment ) { |
670 | if ( defined $size[0] && $size[0] > 11 ) { |
671 | $data_type = 'bigserial'; |
672 | } |
673 | else { |
674 | $data_type = 'serial'; |
675 | } |
676 | undef @size; |
677 | } |
678 | else { |
679 | $data_type = defined $translate{ $data_type } ? |
680 | $translate{ $data_type } : |
681 | $data_type; |
682 | } |
683 | |
684 | if ( $data_type =~ /timestamp/i ) { |
685 | if ( defined $size[0] && $size[0] > 6 ) { |
686 | $size[0] = 6; |
687 | } |
688 | } |
689 | |
690 | if ( $data_type eq 'integer' ) { |
691 | if ( defined $size[0] && $size[0] > 0) { |
692 | if ( $size[0] > 10 ) { |
693 | $data_type = 'bigint'; |
694 | } |
695 | elsif ( $size[0] < 5 ) { |
696 | $data_type = 'smallint'; |
697 | } |
698 | else { |
699 | $data_type = 'integer'; |
700 | } |
701 | } |
702 | else { |
703 | $data_type = 'integer'; |
704 | } |
705 | } |
e56dabb7 |
706 | my @type_without_size = qw/bigint boolean box bytea cidr circle date inet |
707 | integer smallint text line lseg macaddr money |
708 | path point polygon real/; |
709 | foreach (@type_without_size) { |
710 | if ( $data_type =~ qr/$_/ ) { |
711 | undef @size; last; |
712 | } |
713 | } |
bfb5a568 |
714 | |
bfb5a568 |
715 | if ( defined $size[0] && $size[0] > 0 ) { |
716 | $data_type .= '(' . join( ',', @size ) . ')'; |
717 | } |
08d91aad |
718 | elsif (defined $size[0] && $data_type eq 'timestamp' ) { |
719 | $data_type .= '(' . join( ',', @size ) . ')'; |
720 | } |
bfb5a568 |
721 | |
722 | |
723 | return $data_type; |
724 | } |
725 | |
726 | |
727 | sub alter_field |
728 | { |
729 | my ($from_field, $to_field) = @_; |
730 | |
731 | die "Can't alter field in another table" |
732 | if($from_field->table->name ne $to_field->table->name); |
733 | |
734 | my @out; |
3406fd5b |
735 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', |
bfb5a568 |
736 | $to_field->table->name, |
737 | $to_field->name) if(!$to_field->is_nullable and |
738 | $from_field->is_nullable); |
739 | |
740 | my $from_dt = convert_datatype($from_field); |
741 | my $to_dt = convert_datatype($to_field); |
3406fd5b |
742 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', |
bfb5a568 |
743 | $to_field->table->name, |
744 | $to_field->name, |
745 | $to_dt) if($to_dt ne $from_dt); |
746 | |
3406fd5b |
747 | push @out, sprintf('ALTER TABLE %s RENAME COLUMN %s TO %s', |
bfb5a568 |
748 | $to_field->table->name, |
749 | $from_field->name, |
750 | $to_field->name) if($from_field->name ne $to_field->name); |
751 | |
3406fd5b |
752 | my $old_default = $from_field->default_value; |
753 | my $new_default = $to_field->default_value; |
754 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', |
bfb5a568 |
755 | $to_field->table->name, |
756 | $to_field->name, |
3406fd5b |
757 | $to_field->default_value) |
758 | if ( defined $new_default && |
759 | (!defined $old_default || $old_default ne $new_default) ); |
bfb5a568 |
760 | |
761 | return wantarray ? @out : join("\n", @out); |
bfb5a568 |
762 | } |
763 | |
3406fd5b |
764 | sub rename_field { alter_field(@_) } |
765 | |
bfb5a568 |
766 | sub add_field |
767 | { |
768 | my ($new_field) = @_; |
769 | |
3406fd5b |
770 | my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', |
bfb5a568 |
771 | $new_field->table->name, |
772 | create_field($new_field)); |
773 | return $out; |
774 | |
775 | } |
776 | |
777 | sub drop_field |
778 | { |
779 | my ($old_field) = @_; |
780 | |
3406fd5b |
781 | my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', |
bfb5a568 |
782 | $old_field->table->name, |
783 | $old_field->name); |
784 | |
785 | return $out; |
786 | } |
787 | |
3406fd5b |
788 | sub alter_table { |
789 | my ($to_table, $options) = @_; |
790 | my $qt = $options->{quote_table_names} || ''; |
791 | my $out = sprintf('ALTER TABLE %s %s', |
792 | $qt . $to_table->name . $qt, |
793 | $options->{alter_table_action}); |
794 | return $out; |
795 | } |
796 | |
797 | sub rename_table { |
798 | my ($old_table, $new_table, $options) = @_; |
799 | my $qt = $options->{quote_table_names} || ''; |
800 | $options->{alter_table_action} = "RENAME TO $qt$new_table$qt"; |
801 | return alter_table($old_table, $options); |
802 | } |
803 | |
804 | sub alter_create_index { |
805 | my ($index, $options) = @_; |
806 | my $qt = $options->{quote_table_names} || ''; |
807 | my $qf = $options->{quote_field_names} || ''; |
808 | my ($idef, $constraints) = create_index($index, { |
809 | quote_field_names => $qf, |
810 | quote_table_names => $qt, |
811 | table_name => $index->table->name, |
812 | }); |
813 | return $index->type eq NORMAL ? $idef |
814 | : sprintf('ALTER TABLE %s ADD %s', |
815 | $qt . $index->table->name . $qt, |
816 | join(q{}, @$constraints) |
817 | ); |
818 | } |
819 | |
820 | sub alter_drop_index { |
821 | my ($index, $options) = @_; |
822 | my $index_name = $index->name; |
823 | return "DROP INDEX $index_name"; |
824 | } |
825 | |
826 | sub alter_drop_constraint { |
827 | my ($c, $options) = @_; |
828 | my $qt = $options->{quote_table_names} || ''; |
829 | my $qc = $options->{quote_field_names} || ''; |
830 | my $out = sprintf('ALTER TABLE %s DROP CONSTRAINT %s', |
831 | $qt . $c->table->name . $qt, |
832 | $qc . $c->name . $qc ); |
833 | return $out; |
834 | } |
835 | |
836 | sub alter_create_constraint { |
837 | my ($index, $options) = @_; |
838 | my $qt = $options->{quote_table_names} || ''; |
839 | return $index->type eq FOREIGN_KEY ? join(q{}, @{create_constraint(@_)}) |
840 | : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt, |
841 | 'ADD', join(q{}, map { @{$_} } create_constraint(@_)) |
842 | ); |
843 | } |
844 | |
845 | sub drop_table { |
846 | my ($table, $options) = @_; |
847 | my $qt = $options->{quote_table_names} || ''; |
848 | return "DROP TABLE $qt$table$qt CASCADE"; |
849 | } |
850 | |
f8f0253c |
851 | 1; |
f8f0253c |
852 | |
96844cae |
853 | # ------------------------------------------------------------------- |
854 | # Life is full of misery, loneliness, and suffering -- |
855 | # and it's all over much too soon. |
856 | # Woody Allen |
857 | # ------------------------------------------------------------------- |
f8f0253c |
858 | |
96844cae |
859 | =pod |
f8f0253c |
860 | |
20770e44 |
861 | =head1 SEE ALSO |
862 | |
863 | SQL::Translator, SQL::Translator::Producer::Oracle. |
864 | |
f8f0253c |
865 | =head1 AUTHOR |
866 | |
20770e44 |
867 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
f8f0253c |
868 | |
869 | =cut |