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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 ]; |
4ab3763d |
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; |
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 | |
bf75adec |
193 | my @output; |
194 | push @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 => $no_comments, |
216 | }); |
217 | } |
218 | |
bf75adec |
219 | push @output, map { "$_;\n\n" } @table_defs; |
08d91aad |
220 | if ( @fks ) { |
bf75adec |
221 | push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; |
222 | push @output, map { "$_;\n\n" } @fks; |
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 | |
bf75adec |
238 | return wantarray |
239 | ? @output |
240 | : join ('', @output); |
f8f0253c |
241 | } |
242 | |
96844cae |
243 | # ------------------------------------------------------------------- |
244 | sub mk_name { |
0c43e0a1 |
245 | my $basename = shift || ''; |
246 | my $type = shift || ''; |
247 | my $scope = shift || ''; |
248 | my $critical = shift || ''; |
96844cae |
249 | my $basename_orig = $basename; |
bfb5a568 |
250 | # my $max_id_length = 62; |
2ad4c2c8 |
251 | my $max_name = $type |
252 | ? $max_id_length - (length($type) + 1) |
253 | : $max_id_length; |
96844cae |
254 | $basename = substr( $basename, 0, $max_name ) |
255 | if length( $basename ) > $max_name; |
256 | my $name = $type ? "${type}_$basename" : $basename; |
257 | |
258 | if ( $basename ne $basename_orig and $critical ) { |
259 | my $show_type = $type ? "+'$type'" : ""; |
260 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
261 | "character limit to make '$name'\n" if $WARN; |
262 | $truncated{ $basename_orig } = $name; |
263 | } |
264 | |
265 | $scope ||= \%global_names; |
266 | if ( my $prev = $scope->{ $name } ) { |
267 | my $name_orig = $name; |
268 | $name .= sprintf( "%02d", ++$prev ); |
269 | substr($name, $max_id_length - 3) = "00" |
270 | if length( $name ) > $max_id_length; |
271 | |
272 | warn "The name '$name_orig' has been changed to ", |
273 | "'$name' to make it unique.\n" if $WARN; |
274 | |
275 | $scope->{ $name_orig }++; |
f8f0253c |
276 | } |
96844cae |
277 | |
278 | $scope->{ $name }++; |
279 | return $name; |
280 | } |
281 | |
282 | # ------------------------------------------------------------------- |
283 | sub unreserve { |
0c43e0a1 |
284 | my $name = shift || ''; |
285 | my $schema_obj_name = shift || ''; |
286 | |
96844cae |
287 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
288 | |
289 | # also trap fields that don't begin with a letter |
bfb5a568 |
290 | return $name if (!$reserved{ uc $name }) && $name =~ /^[a-z]/i; |
96844cae |
291 | |
292 | if ( $schema_obj_name ) { |
293 | ++$unreserve{"$schema_obj_name.$name"}; |
294 | } |
295 | else { |
296 | ++$unreserve{"$name (table name)"}; |
297 | } |
298 | |
299 | my $unreserve = sprintf '%s_', $name; |
300 | return $unreserve.$suffix; |
f8f0253c |
301 | } |
302 | |
50840472 |
303 | # ------------------------------------------------------------------- |
304 | sub next_unused_name { |
999859d7 |
305 | my $name = shift || ''; |
306 | if ( !defined( $used_names{$name} ) ) { |
50840472 |
307 | $used_names{$name} = $name; |
308 | return $name; |
309 | } |
999859d7 |
310 | |
50840472 |
311 | my $i = 2; |
999859d7 |
312 | while ( defined( $used_names{ $name . $i } ) ) { |
50840472 |
313 | ++$i; |
314 | } |
315 | $name .= $i; |
316 | $used_names{$name} = $name; |
317 | return $name; |
318 | } |
319 | |
999859d7 |
320 | |
bfb5a568 |
321 | sub create_table |
322 | { |
323 | my ($table, $options) = @_; |
324 | |
325 | my $qt = $options->{quote_table_names} || ''; |
326 | my $qf = $options->{quote_field_names} || ''; |
327 | my $no_comments = $options->{no_comments} || 0; |
328 | my $add_drop_table = $options->{add_drop_table} || 0; |
5342f5c1 |
329 | my $postgres_version = $options->{postgres_version} || 0; |
bfb5a568 |
330 | |
3406fd5b |
331 | my $table_name = $table->name or next; |
332 | $table_name = mk_name( $table_name, '', undef, 1 ); |
333 | my ( $fql_tbl_name ) = ( $table_name =~ s/\W(.*)$// ) ? $1 : q{}; |
334 | my $table_name_ur = $qt ? $table_name |
335 | : $fql_tbl_name ? join('.', $table_name, unreserve($fql_tbl_name)) |
336 | : unreserve($table_name); |
bfb5a568 |
337 | $table->name($table_name_ur); |
338 | |
339 | # print STDERR "$table_name table_name\n"; |
5342f5c1 |
340 | my ( @comments, @field_defs, @sequence_defs, @constraint_defs, @type_defs, @type_drops, @fks ); |
bfb5a568 |
341 | |
7ed7402c |
342 | push @comments, "--\n-- Table: $table_name_ur\n--\n" unless $no_comments; |
bfb5a568 |
343 | |
344 | if ( $table->comments and !$no_comments ){ |
345 | my $c = "-- Comments: \n-- "; |
346 | $c .= join "\n-- ", $table->comments; |
7ed7402c |
347 | $c .= "\n--\n"; |
bfb5a568 |
348 | push @comments, $c; |
349 | } |
350 | |
351 | # |
352 | # Fields |
353 | # |
354 | my %field_name_scope; |
355 | for my $field ( $table->get_fields ) { |
356 | push @field_defs, create_field($field, { quote_table_names => $qt, |
357 | quote_field_names => $qf, |
358 | table_name => $table_name_ur, |
5342f5c1 |
359 | postgres_version => $postgres_version, |
360 | type_defs => \@type_defs, |
361 | type_drops => \@type_drops, |
bfb5a568 |
362 | constraint_defs => \@constraint_defs,}); |
363 | } |
364 | |
365 | # |
366 | # Index Declarations |
367 | # |
368 | my @index_defs = (); |
369 | # my $idx_name_default; |
370 | for my $index ( $table->get_indices ) { |
371 | my ($idef, $constraints) = create_index($index, |
372 | { |
373 | quote_field_names => $qf, |
374 | quote_table_names => $qt, |
375 | table_name => $table_name, |
376 | }); |
7ed7402c |
377 | $idef and push @index_defs, $idef; |
bfb5a568 |
378 | push @constraint_defs, @$constraints; |
379 | } |
380 | |
381 | # |
382 | # Table constraints |
383 | # |
384 | my $c_name_default; |
385 | for my $c ( $table->get_constraints ) { |
386 | my ($cdefs, $fks) = create_constraint($c, |
387 | { |
388 | quote_field_names => $qf, |
389 | quote_table_names => $qt, |
390 | table_name => $table_name, |
391 | }); |
392 | push @constraint_defs, @$cdefs; |
393 | push @fks, @$fks; |
394 | } |
395 | |
3e98f7d9 |
396 | |
397 | my $temporary = ""; |
398 | |
399 | if(exists $table->{extra}{temporary}) { |
400 | $temporary = $table->{extra}{temporary} ? "TEMPORARY " : ""; |
401 | } |
402 | |
bfb5a568 |
403 | my $create_statement; |
404 | $create_statement = join("\n", @comments); |
5342f5c1 |
405 | if ($add_drop_table) { |
406 | if ($postgres_version >= 8.2) { |
407 | $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n]; |
938464ee |
408 | $create_statement .= join (";\n", @type_drops) . ";\n" |
409 | if $postgres_version >= 8.3 && scalar @type_drops; |
5342f5c1 |
410 | } else { |
411 | $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n]; |
412 | } |
413 | } |
938464ee |
414 | $create_statement .= join(";\n", @type_defs) . ";\n" |
415 | if $postgres_version >= 8.3 && scalar @type_defs; |
3e98f7d9 |
416 | $create_statement .= qq[CREATE ${temporary}TABLE $qt$table_name_ur$qt (\n]. |
bfb5a568 |
417 | join( ",\n", map { " $_" } @field_defs, @constraint_defs ). |
3406fd5b |
418 | "\n)" |
bfb5a568 |
419 | ; |
3406fd5b |
420 | $create_statement .= @index_defs ? ';' : q{}; |
421 | $create_statement .= ( $create_statement =~ /;$/ ? "\n" : q{} ) |
422 | . join(";\n", @index_defs); |
bfb5a568 |
423 | |
08d91aad |
424 | return $create_statement, \@fks; |
bfb5a568 |
425 | } |
426 | |
296c2701 |
427 | sub create_view { |
428 | my ($view, $options) = @_; |
429 | my $qt = $options->{quote_table_names} || ''; |
430 | my $qf = $options->{quote_field_names} || ''; |
a25ac5d2 |
431 | my $add_drop_view = $options->{add_drop_view}; |
296c2701 |
432 | |
433 | my $view_name = $view->name; |
434 | debug("PKG: Looking at view '${view_name}'\n"); |
435 | |
436 | my $create = ''; |
437 | $create .= "--\n-- View: ${qt}${view_name}${qt}\n--\n" |
438 | unless $options->{no_comments}; |
a25ac5d2 |
439 | $create .= "DROP VIEW ${qt}${view_name}${qt};\n" if $add_drop_view; |
296c2701 |
440 | $create .= 'CREATE'; |
296c2701 |
441 | |
442 | my $extra = $view->extra; |
443 | $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary}; |
444 | $create .= " VIEW ${qt}${view_name}${qt}"; |
445 | |
446 | if ( my @fields = $view->fields ) { |
447 | my $field_list = join ', ', map { "${qf}${_}${qf}" } @fields; |
448 | $create .= " ( ${field_list} )"; |
449 | } |
450 | |
451 | if ( my $sql = $view->sql ) { |
452 | $create .= " AS (\n ${sql}\n )"; |
453 | } |
454 | |
455 | if ( $extra->{check_option} ) { |
456 | $create .= ' WITH ' . uc $extra->{check_option} . ' CHECK OPTION'; |
457 | } |
458 | |
296c2701 |
459 | return $create; |
460 | } |
461 | |
bfb5a568 |
462 | { |
463 | |
464 | my %field_name_scope; |
465 | |
466 | sub create_field |
467 | { |
468 | my ($field, $options) = @_; |
469 | |
470 | my $qt = $options->{quote_table_names} || ''; |
471 | my $qf = $options->{quote_field_names} || ''; |
472 | my $table_name = $field->table->name; |
473 | my $constraint_defs = $options->{constraint_defs} || []; |
5342f5c1 |
474 | my $postgres_version = $options->{postgres_version} || 0; |
475 | my $type_defs = $options->{type_defs} || []; |
476 | my $type_drops = $options->{type_drops} || []; |
bfb5a568 |
477 | |
478 | $field_name_scope{$table_name} ||= {}; |
479 | my $field_name = mk_name( |
480 | $field->name, '', $field_name_scope{$table_name}, 1 |
481 | ); |
08d91aad |
482 | my $field_name_ur = $qf ? $field_name : unreserve($field_name, $table_name ); |
bfb5a568 |
483 | $field->name($field_name_ur); |
484 | my $field_comments = $field->comments |
485 | ? "-- " . $field->comments . "\n " |
486 | : ''; |
487 | |
488 | my $field_def = $field_comments.qq[$qf$field_name_ur$qf]; |
489 | |
490 | # |
491 | # Datatype |
492 | # |
493 | my @size = $field->size; |
494 | my $data_type = lc $field->data_type; |
495 | my %extra = $field->extra; |
496 | my $list = $extra{'list'} || []; |
497 | # todo deal with embedded quotes |
498 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
bfb5a568 |
499 | |
5342f5c1 |
500 | if ($postgres_version >= 8.3 && $field->data_type eq 'enum') { |
501 | my $type_name = $field->table->name . '_' . $field->name . '_type'; |
502 | $field_def .= ' '. $type_name; |
3406fd5b |
503 | push @$type_defs, "CREATE TYPE $type_name AS ENUM ($commalist)"; |
504 | push @$type_drops, "DROP TYPE IF EXISTS $type_name"; |
5342f5c1 |
505 | } else { |
506 | $field_def .= ' '. convert_datatype($field); |
507 | } |
bfb5a568 |
508 | |
509 | # |
bc8e2aa1 |
510 | # Default value |
bfb5a568 |
511 | # |
f39e9c12 |
512 | my $default = $field->default_value; |
bfb5a568 |
513 | if ( defined $default ) { |
bc8e2aa1 |
514 | SQL::Translator::Producer->_apply_default_value( |
515 | \$field_def, |
516 | $default, |
517 | [ |
518 | 'NULL' => \'NULL', |
519 | 'now()' => 'now()', |
520 | 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', |
521 | ], |
522 | ); |
bfb5a568 |
523 | } |
524 | |
525 | # |
526 | # Not null constraint |
527 | # |
528 | $field_def .= ' NOT NULL' unless $field->is_nullable; |
529 | |
530 | return $field_def; |
531 | } |
532 | } |
533 | |
bfb5a568 |
534 | sub create_index |
535 | { |
536 | my ($index, $options) = @_; |
537 | |
538 | my $qt = $options->{quote_table_names} ||''; |
539 | my $qf = $options->{quote_field_names} ||''; |
540 | my $table_name = $index->table->name; |
08d91aad |
541 | # my $table_name_ur = $qt ? unreserve($table_name) : $table_name; |
bfb5a568 |
542 | |
543 | my ($index_def, @constraint_defs); |
544 | |
bfb5a568 |
545 | my $name = $index->name || ''; |
546 | if ( $name ) { |
999859d7 |
547 | $name = next_unused_name($name); |
bfb5a568 |
548 | } |
549 | |
550 | my $type = $index->type || NORMAL; |
551 | my @fields = |
552 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
553 | map { $qt ? $_ : unreserve($_, $table_name ) } |
bfb5a568 |
554 | $index->fields; |
555 | next unless @fields; |
556 | |
3406fd5b |
557 | my $def_start = qq[CONSTRAINT "$name" ]; |
bfb5a568 |
558 | if ( $type eq PRIMARY_KEY ) { |
559 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
560 | '(' .$qf . join( $qf. ', '.$qf, @fields ) . $qf . ')'; |
561 | } |
562 | elsif ( $type eq UNIQUE ) { |
563 | push @constraint_defs, "${def_start}UNIQUE " . |
564 | '(' . $qf . join( $qf. ', '.$qf, @fields ) . $qf.')'; |
565 | } |
566 | elsif ( $type eq NORMAL ) { |
567 | $index_def = |
08d91aad |
568 | "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} (". |
bfb5a568 |
569 | join( ', ', map { qq[$qf$_$qf] } @fields ). |
3406fd5b |
570 | ')' |
bfb5a568 |
571 | ; |
572 | } |
573 | else { |
574 | warn "Unknown index type ($type) on table $table_name.\n" |
575 | if $WARN; |
576 | } |
577 | |
578 | return $index_def, \@constraint_defs; |
579 | } |
580 | |
581 | sub create_constraint |
582 | { |
583 | my ($c, $options) = @_; |
584 | |
585 | my $qf = $options->{quote_field_names} ||''; |
586 | my $qt = $options->{quote_table_names} ||''; |
587 | my $table_name = $c->table->name; |
588 | my (@constraint_defs, @fks); |
589 | |
590 | my $name = $c->name || ''; |
591 | if ( $name ) { |
999859d7 |
592 | $name = next_unused_name($name); |
bfb5a568 |
593 | } |
594 | |
595 | my @fields = |
596 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
597 | map { $qt ? $_ : unreserve( $_, $table_name )} |
bfb5a568 |
598 | $c->fields; |
599 | |
600 | my @rfields = |
601 | map { $_ =~ s/\(.+\)//; $_ } |
08d91aad |
602 | map { $qt ? $_ : unreserve( $_, $table_name )} |
bfb5a568 |
603 | $c->reference_fields; |
604 | |
605 | next if !@fields && $c->type ne CHECK_C; |
3406fd5b |
606 | my $def_start = $name ? qq[CONSTRAINT "$name" ] : ''; |
bfb5a568 |
607 | if ( $c->type eq PRIMARY_KEY ) { |
608 | push @constraint_defs, "${def_start}PRIMARY KEY ". |
609 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
610 | } |
611 | elsif ( $c->type eq UNIQUE ) { |
999859d7 |
612 | $name = next_unused_name($name); |
bfb5a568 |
613 | push @constraint_defs, "${def_start}UNIQUE " . |
614 | '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')'; |
615 | } |
616 | elsif ( $c->type eq CHECK_C ) { |
617 | my $expression = $c->expression; |
618 | push @constraint_defs, "${def_start}CHECK ($expression)"; |
619 | } |
620 | elsif ( $c->type eq FOREIGN_KEY ) { |
621 | my $def .= "ALTER TABLE ${qt}${table_name}${qt} ADD FOREIGN KEY (" . |
622 | join( ', ', map { qq[$qf$_$qf] } @fields ) . ')' . |
623 | "\n REFERENCES " . $qt . $c->reference_table . $qt; |
624 | |
625 | if ( @rfields ) { |
626 | $def .= ' ('.$qf . join( $qf.', '.$qf, @rfields ) . $qf.')'; |
627 | } |
628 | |
629 | if ( $c->match_type ) { |
630 | $def .= ' MATCH ' . |
631 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
632 | } |
633 | |
634 | if ( $c->on_delete ) { |
635 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
636 | } |
637 | |
638 | if ( $c->on_update ) { |
639 | $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
640 | } |
641 | |
5342f5c1 |
642 | if ( $c->deferrable ) { |
643 | $def .= ' DEFERRABLE'; |
644 | } |
645 | |
3406fd5b |
646 | push @fks, "$def"; |
bfb5a568 |
647 | } |
648 | |
649 | return \@constraint_defs, \@fks; |
650 | } |
bfb5a568 |
651 | |
652 | sub convert_datatype |
653 | { |
654 | my ($field) = @_; |
655 | |
656 | my @size = $field->size; |
657 | my $data_type = lc $field->data_type; |
658 | |
659 | if ( $data_type eq 'enum' ) { |
660 | # my $len = 0; |
661 | # $len = ($len < length($_)) ? length($_) : $len for (@$list); |
662 | # my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); |
663 | # push @$constraint_defs, |
3406fd5b |
664 | # qq[CONSTRAINT "$chk_name" CHECK ($qf$field_name$qf ]. |
bfb5a568 |
665 | # qq[IN ($commalist))]; |
666 | $data_type = 'character varying'; |
667 | } |
668 | elsif ( $data_type eq 'set' ) { |
669 | $data_type = 'character varying'; |
670 | } |
671 | elsif ( $field->is_auto_increment ) { |
672 | if ( defined $size[0] && $size[0] > 11 ) { |
673 | $data_type = 'bigserial'; |
674 | } |
675 | else { |
676 | $data_type = 'serial'; |
677 | } |
678 | undef @size; |
679 | } |
680 | else { |
681 | $data_type = defined $translate{ $data_type } ? |
682 | $translate{ $data_type } : |
683 | $data_type; |
684 | } |
685 | |
686 | if ( $data_type =~ /timestamp/i ) { |
687 | if ( defined $size[0] && $size[0] > 6 ) { |
688 | $size[0] = 6; |
689 | } |
690 | } |
691 | |
692 | if ( $data_type eq 'integer' ) { |
693 | if ( defined $size[0] && $size[0] > 0) { |
694 | if ( $size[0] > 10 ) { |
695 | $data_type = 'bigint'; |
696 | } |
697 | elsif ( $size[0] < 5 ) { |
698 | $data_type = 'smallint'; |
699 | } |
700 | else { |
701 | $data_type = 'integer'; |
702 | } |
703 | } |
704 | else { |
705 | $data_type = 'integer'; |
706 | } |
707 | } |
e56dabb7 |
708 | my @type_without_size = qw/bigint boolean box bytea cidr circle date inet |
709 | integer smallint text line lseg macaddr money |
710 | path point polygon real/; |
711 | foreach (@type_without_size) { |
712 | if ( $data_type =~ qr/$_/ ) { |
713 | undef @size; last; |
714 | } |
715 | } |
bfb5a568 |
716 | |
bfb5a568 |
717 | if ( defined $size[0] && $size[0] > 0 ) { |
718 | $data_type .= '(' . join( ',', @size ) . ')'; |
719 | } |
08d91aad |
720 | elsif (defined $size[0] && $data_type eq 'timestamp' ) { |
721 | $data_type .= '(' . join( ',', @size ) . ')'; |
722 | } |
bfb5a568 |
723 | |
724 | |
725 | return $data_type; |
726 | } |
727 | |
728 | |
729 | sub alter_field |
730 | { |
731 | my ($from_field, $to_field) = @_; |
732 | |
733 | die "Can't alter field in another table" |
734 | if($from_field->table->name ne $to_field->table->name); |
735 | |
736 | my @out; |
3406fd5b |
737 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', |
bfb5a568 |
738 | $to_field->table->name, |
739 | $to_field->name) if(!$to_field->is_nullable and |
740 | $from_field->is_nullable); |
741 | |
90726ffd |
742 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP NOT NULL', |
743 | $to_field->table->name, |
744 | $to_field->name) |
745 | if ( !$from_field->is_nullable and $to_field->is_nullable ); |
746 | |
747 | |
bfb5a568 |
748 | my $from_dt = convert_datatype($from_field); |
749 | my $to_dt = convert_datatype($to_field); |
3406fd5b |
750 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', |
bfb5a568 |
751 | $to_field->table->name, |
752 | $to_field->name, |
753 | $to_dt) if($to_dt ne $from_dt); |
754 | |
3406fd5b |
755 | push @out, sprintf('ALTER TABLE %s RENAME COLUMN %s TO %s', |
bfb5a568 |
756 | $to_field->table->name, |
757 | $from_field->name, |
758 | $to_field->name) if($from_field->name ne $to_field->name); |
759 | |
3406fd5b |
760 | my $old_default = $from_field->default_value; |
761 | my $new_default = $to_field->default_value; |
90726ffd |
762 | my $default_value = $to_field->default_value; |
763 | |
764 | # fixes bug where output like this was created: |
765 | # ALTER TABLE users ALTER COLUMN column SET DEFAULT ThisIsUnescaped; |
766 | if(ref $default_value eq "SCALAR" ) { |
767 | $default_value = $$default_value; |
768 | } elsif( defined $default_value && $to_dt =~ /^(character|text)/xsmi ) { |
769 | $default_value =~ s/'/''/xsmg; |
770 | $default_value = q(') . $default_value . q('); |
771 | } |
772 | |
3406fd5b |
773 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', |
bfb5a568 |
774 | $to_field->table->name, |
775 | $to_field->name, |
90726ffd |
776 | $default_value) |
3406fd5b |
777 | if ( defined $new_default && |
778 | (!defined $old_default || $old_default ne $new_default) ); |
bfb5a568 |
779 | |
90726ffd |
780 | # fixes bug where removing the DEFAULT statement of a column |
781 | # would result in no change |
782 | |
783 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP DEFAULT', |
784 | $to_field->table->name, |
785 | $to_field->name) |
786 | if ( !defined $new_default && defined $old_default ); |
787 | |
788 | |
bfb5a568 |
789 | return wantarray ? @out : join("\n", @out); |
bfb5a568 |
790 | } |
791 | |
3406fd5b |
792 | sub rename_field { alter_field(@_) } |
793 | |
bfb5a568 |
794 | sub add_field |
795 | { |
796 | my ($new_field) = @_; |
797 | |
3406fd5b |
798 | my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', |
bfb5a568 |
799 | $new_field->table->name, |
800 | create_field($new_field)); |
801 | return $out; |
802 | |
803 | } |
804 | |
805 | sub drop_field |
806 | { |
807 | my ($old_field) = @_; |
808 | |
3406fd5b |
809 | my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', |
bfb5a568 |
810 | $old_field->table->name, |
811 | $old_field->name); |
812 | |
813 | return $out; |
814 | } |
815 | |
3406fd5b |
816 | sub alter_table { |
817 | my ($to_table, $options) = @_; |
818 | my $qt = $options->{quote_table_names} || ''; |
819 | my $out = sprintf('ALTER TABLE %s %s', |
820 | $qt . $to_table->name . $qt, |
821 | $options->{alter_table_action}); |
822 | return $out; |
823 | } |
824 | |
825 | sub rename_table { |
826 | my ($old_table, $new_table, $options) = @_; |
827 | my $qt = $options->{quote_table_names} || ''; |
828 | $options->{alter_table_action} = "RENAME TO $qt$new_table$qt"; |
829 | return alter_table($old_table, $options); |
830 | } |
831 | |
832 | sub alter_create_index { |
833 | my ($index, $options) = @_; |
834 | my $qt = $options->{quote_table_names} || ''; |
835 | my $qf = $options->{quote_field_names} || ''; |
836 | my ($idef, $constraints) = create_index($index, { |
837 | quote_field_names => $qf, |
838 | quote_table_names => $qt, |
839 | table_name => $index->table->name, |
840 | }); |
841 | return $index->type eq NORMAL ? $idef |
842 | : sprintf('ALTER TABLE %s ADD %s', |
843 | $qt . $index->table->name . $qt, |
844 | join(q{}, @$constraints) |
845 | ); |
846 | } |
847 | |
848 | sub alter_drop_index { |
849 | my ($index, $options) = @_; |
850 | my $index_name = $index->name; |
851 | return "DROP INDEX $index_name"; |
852 | } |
853 | |
854 | sub alter_drop_constraint { |
855 | my ($c, $options) = @_; |
856 | my $qt = $options->{quote_table_names} || ''; |
857 | my $qc = $options->{quote_field_names} || ''; |
858 | my $out = sprintf('ALTER TABLE %s DROP CONSTRAINT %s', |
859 | $qt . $c->table->name . $qt, |
860 | $qc . $c->name . $qc ); |
861 | return $out; |
862 | } |
863 | |
864 | sub alter_create_constraint { |
865 | my ($index, $options) = @_; |
866 | my $qt = $options->{quote_table_names} || ''; |
90726ffd |
867 | my ($defs, $fks) = create_constraint(@_); |
868 | |
869 | # return if there are no constraint definitions so we don't run |
870 | # into output like this: |
871 | # ALTER TABLE users ADD ; |
872 | |
873 | return unless(@{$defs} || @{$fks}); |
874 | return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks}) |
3406fd5b |
875 | : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt, |
90726ffd |
876 | 'ADD', join(q{}, @{$defs}, @{$fks}) |
3406fd5b |
877 | ); |
878 | } |
879 | |
880 | sub drop_table { |
881 | my ($table, $options) = @_; |
882 | my $qt = $options->{quote_table_names} || ''; |
883 | return "DROP TABLE $qt$table$qt CASCADE"; |
884 | } |
885 | |
f8f0253c |
886 | 1; |
f8f0253c |
887 | |
96844cae |
888 | # ------------------------------------------------------------------- |
889 | # Life is full of misery, loneliness, and suffering -- |
890 | # and it's all over much too soon. |
891 | # Woody Allen |
892 | # ------------------------------------------------------------------- |
f8f0253c |
893 | |
96844cae |
894 | =pod |
f8f0253c |
895 | |
20770e44 |
896 | =head1 SEE ALSO |
897 | |
898 | SQL::Translator, SQL::Translator::Producer::Oracle. |
899 | |
f8f0253c |
900 | =head1 AUTHOR |
901 | |
20770e44 |
902 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
f8f0253c |
903 | |
904 | =cut |