Commit | Line | Data |
f8f0253c |
1 | package SQL::Translator::Producer::PostgreSQL; |
2 | |
96844cae |
3 | =head1 NAME |
4 | |
5 | SQL::Translator::Producer::PostgreSQL - PostgreSQL producer for SQL::Translator |
6 | |
20770e44 |
7 | =head1 SYNOPSIS |
8 | |
9 | my $t = SQL::Translator->new( parser => '...', producer => 'PostgreSQL' ); |
10 | $t->translate; |
11 | |
12 | =head1 DESCRIPTION |
13 | |
14 | Creates a DDL suitable for PostgreSQL. Very heavily based on the Oracle |
15 | producer. |
16 | |
e83ad71c |
17 | Now handles PostGIS Geometry and Geography data types on table definitions. |
18 | Does not yet support PostGIS Views. |
ea93df61 |
19 | |
96844cae |
20 | =cut |
21 | |
f8f0253c |
22 | use strict; |
bfb5a568 |
23 | use warnings; |
0c04c5a2 |
24 | our ( $DEBUG, $WARN ); |
25 | our $VERSION = '1.59'; |
a25ac5d2 |
26 | $DEBUG = 0 unless defined $DEBUG; |
f8f0253c |
27 | |
8d11f4cb |
28 | use base qw(SQL::Translator::Producer); |
0c43e0a1 |
29 | use SQL::Translator::Schema::Constants; |
f82112a3 |
30 | use SQL::Translator::Utils qw(debug header_comment parse_dbms_version batch_alter_table_statements normalize_quote_options); |
2230ed2a |
31 | use SQL::Translator::Generator::DDL::PostgreSQL; |
f8f0253c |
32 | use Data::Dumper; |
33 | |
9c9c169c |
34 | use constant MAX_ID_LENGTH => 62; |
35 | |
f82112a3 |
36 | { |
37 | my ($quoting_generator, $nonquoting_generator); |
38 | sub _generator { |
39 | my $options = shift; |
40 | return $options->{generator} if exists $options->{generator}; |
41 | |
42 | return normalize_quote_options($options) |
43 | ? $quoting_generator ||= SQL::Translator::Generator::DDL::PostgreSQL->new |
44 | : $nonquoting_generator ||= SQL::Translator::Generator::DDL::PostgreSQL->new( |
45 | quote_chars => [], |
46 | ); |
47 | } |
48 | } |
2230ed2a |
49 | |
b14cf6f4 |
50 | my ( %translate ); |
bfb5a568 |
51 | |
52 | BEGIN { |
53 | |
54 | %translate = ( |
d529894e |
55 | # |
56 | # MySQL types |
57 | # |
90089d63 |
58 | double => 'double precision', |
4328d7bd |
59 | decimal => 'numeric', |
d529894e |
60 | int => 'integer', |
61 | mediumint => 'integer', |
d529894e |
62 | tinyint => 'smallint', |
c8c17a58 |
63 | char => 'character', |
da8e499e |
64 | varchar => 'character varying', |
d529894e |
65 | longtext => 'text', |
66 | mediumtext => 'text', |
d529894e |
67 | tinytext => 'text', |
68 | tinyblob => 'bytea', |
69 | blob => 'bytea', |
70 | mediumblob => 'bytea', |
71 | longblob => 'bytea', |
da8e499e |
72 | enum => 'character varying', |
73 | set => 'character varying', |
d529894e |
74 | datetime => 'timestamp', |
d529894e |
75 | year => 'date', |
76 | |
77 | # |
78 | # Oracle types |
79 | # |
96844cae |
80 | number => 'integer', |
da8e499e |
81 | varchar2 => 'character varying', |
96844cae |
82 | long => 'text', |
ada2826e |
83 | clob => 'text', |
96844cae |
84 | |
85 | # |
86 | # Sybase types |
87 | # |
96844cae |
88 | comment => 'text', |
ebad0597 |
89 | |
90 | # |
91 | # MS Access types |
92 | # |
93 | memo => 'text', |
d529894e |
94 | ); |
bfb5a568 |
95 | } |
96844cae |
96 | my %truncated; |
97 | |
98 | =pod |
99 | |
100 | =head1 PostgreSQL Create Table Syntax |
101 | |
102 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
103 | { column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ] |
104 | | table_constraint } [, ... ] |
105 | ) |
106 | [ INHERITS ( parent_table [, ... ] ) ] |
107 | [ WITH OIDS | WITHOUT OIDS ] |
108 | |
109 | where column_constraint is: |
110 | |
111 | [ CONSTRAINT constraint_name ] |
112 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
113 | CHECK (expression) | |
114 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
115 | [ ON DELETE action ] [ ON UPDATE action ] } |
116 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
117 | |
118 | and table_constraint is: |
119 | |
120 | [ CONSTRAINT constraint_name ] |
121 | { UNIQUE ( column_name [, ... ] ) | |
122 | PRIMARY KEY ( column_name [, ... ] ) | |
123 | CHECK ( expression ) | |
124 | FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
125 | [ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] } |
126 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
127 | |
da8e499e |
128 | =head1 Create Index Syntax |
129 | |
130 | CREATE [ UNIQUE ] INDEX index_name ON table |
131 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
132 | [ WHERE predicate ] |
133 | CREATE [ UNIQUE ] INDEX index_name ON table |
134 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
135 | [ WHERE predicate ] |
136 | |
96844cae |
137 | =cut |
f8f0253c |
138 | |
139 | sub produce { |
e189562c |
140 | my $translator = shift; |
141 | local $DEBUG = $translator->debug; |
142 | local $WARN = $translator->show_warnings; |
143 | my $no_comments = $translator->no_comments; |
144 | my $add_drop_table = $translator->add_drop_table; |
145 | my $schema = $translator->schema; |
146 | my $pargs = $translator->producer_args; |
7b4b17aa |
147 | my $postgres_version = parse_dbms_version( |
148 | $pargs->{postgres_version}, 'perl' |
149 | ); |
96844cae |
150 | |
f82112a3 |
151 | my $generator = _generator({ quote_identifiers => $translator->quote_identifiers }); |
ea93df61 |
152 | |
bf75adec |
153 | my @output; |
154 | push @output, header_comment unless ($no_comments); |
96844cae |
155 | |
08d91aad |
156 | my (@table_defs, @fks); |
79f55d7e |
157 | my %type_defs; |
0c43e0a1 |
158 | for my $table ( $schema->get_tables ) { |
08d91aad |
159 | |
ea93df61 |
160 | my ($table_def, $fks) = create_table($table, { |
f82112a3 |
161 | generator => $generator, |
e189562c |
162 | no_comments => $no_comments, |
163 | postgres_version => $postgres_version, |
164 | add_drop_table => $add_drop_table, |
79f55d7e |
165 | type_defs => \%type_defs, |
e189562c |
166 | }); |
167 | |
08d91aad |
168 | push @table_defs, $table_def; |
169 | push @fks, @$fks; |
da8e499e |
170 | } |
171 | |
296c2701 |
172 | for my $view ( $schema->get_views ) { |
f82112a3 |
173 | push @table_defs, create_view($view, { |
174 | postgres_version => $postgres_version, |
175 | add_drop_view => $add_drop_table, |
176 | generator => $generator, |
177 | no_comments => $no_comments, |
178 | }); |
296c2701 |
179 | } |
180 | |
c96cd4a8 |
181 | for my $trigger ( $schema->get_triggers ) { |
182 | push @table_defs, create_trigger( $trigger, { |
183 | add_drop_trigger => $add_drop_table, |
c9c8f3e1 |
184 | generator => $generator, |
c96cd4a8 |
185 | no_comments => $no_comments, |
186 | }); |
187 | } |
188 | |
79f55d7e |
189 | push @output, map { "$_;\n\n" } values %type_defs; |
bf75adec |
190 | push @output, map { "$_;\n\n" } @table_defs; |
08d91aad |
191 | if ( @fks ) { |
bf75adec |
192 | push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; |
193 | push @output, map { "$_;\n\n" } @fks; |
08d91aad |
194 | } |
021dbce8 |
195 | |
da8e499e |
196 | if ( $WARN ) { |
197 | if ( %truncated ) { |
198 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
199 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
200 | } |
f8f0253c |
201 | } |
202 | |
bf75adec |
203 | return wantarray |
204 | ? @output |
205 | : join ('', @output); |
f8f0253c |
206 | } |
207 | |
b14cf6f4 |
208 | { |
209 | my %global_names; |
210 | sub mk_name { |
211 | my $basename = shift || ''; |
212 | my $type = shift || ''; |
213 | my $scope = shift || ''; |
214 | my $critical = shift || ''; |
215 | my $basename_orig = $basename; |
216 | |
217 | my $max_name = $type |
218 | ? MAX_ID_LENGTH - (length($type) + 1) |
219 | : MAX_ID_LENGTH; |
220 | $basename = substr( $basename, 0, $max_name ) |
221 | if length( $basename ) > $max_name; |
222 | my $name = $type ? "${type}_$basename" : $basename; |
223 | |
224 | if ( $basename ne $basename_orig and $critical ) { |
225 | my $show_type = $type ? "+'$type'" : ""; |
226 | warn "Truncating '$basename_orig'$show_type to ", MAX_ID_LENGTH, |
227 | " character limit to make '$name'\n" if $WARN; |
228 | $truncated{ $basename_orig } = $name; |
229 | } |
96844cae |
230 | |
b14cf6f4 |
231 | $scope ||= \%global_names; |
232 | if ( my $prev = $scope->{ $name } ) { |
233 | my $name_orig = $name; |
234 | $name .= sprintf( "%02d", ++$prev ); |
235 | substr($name, MAX_ID_LENGTH - 3) = "00" |
236 | if length( $name ) > MAX_ID_LENGTH; |
96844cae |
237 | |
b14cf6f4 |
238 | warn "The name '$name_orig' has been changed to ", |
239 | "'$name' to make it unique.\n" if $WARN; |
96844cae |
240 | |
b14cf6f4 |
241 | $scope->{ $name_orig }++; |
242 | } |
96844cae |
243 | |
b14cf6f4 |
244 | $scope->{ $name }++; |
245 | return $name; |
246 | } |
96844cae |
247 | } |
248 | |
0b4b7709 |
249 | sub is_geometry { |
250 | my $field = shift; |
251 | return 1 if $field->data_type eq 'geometry'; |
140a1dad |
252 | } |
253 | |
0b4b7709 |
254 | sub is_geography { |
140a1dad |
255 | my $field = shift; |
256 | return 1 if $field->data_type eq 'geography'; |
e83ad71c |
257 | } |
258 | |
ea93df61 |
259 | sub create_table |
bfb5a568 |
260 | { |
261 | my ($table, $options) = @_; |
262 | |
f82112a3 |
263 | my $generator = _generator($options); |
bfb5a568 |
264 | my $no_comments = $options->{no_comments} || 0; |
265 | my $add_drop_table = $options->{add_drop_table} || 0; |
5342f5c1 |
266 | my $postgres_version = $options->{postgres_version} || 0; |
79f55d7e |
267 | my $type_defs = $options->{type_defs} || {}; |
bfb5a568 |
268 | |
3406fd5b |
269 | my $table_name = $table->name or next; |
f82112a3 |
270 | my $table_name_qt = $generator->quote($table_name); |
bfb5a568 |
271 | |
d31a1336 |
272 | my ( @comments, @field_defs, @index_defs, @constraint_defs, @fks ); |
bfb5a568 |
273 | |
f82112a3 |
274 | push @comments, "--\n-- Table: $table_name\n--\n" unless $no_comments; |
bfb5a568 |
275 | |
31bed2c0 |
276 | if ( !$no_comments and my $comments = $table->comments ) { |
277 | $comments =~ s/^/-- /mg; |
278 | push @comments, "-- Comments:\n$comments\n--\n"; |
bfb5a568 |
279 | } |
280 | |
281 | # |
282 | # Fields |
283 | # |
bfb5a568 |
284 | for my $field ( $table->get_fields ) { |
f82112a3 |
285 | push @field_defs, create_field($field, { |
286 | generator => $generator, |
287 | postgres_version => $postgres_version, |
288 | type_defs => $type_defs, |
289 | constraint_defs => \@constraint_defs, |
290 | }); |
bfb5a568 |
291 | } |
292 | |
293 | # |
294 | # Index Declarations |
295 | # |
bfb5a568 |
296 | for my $index ( $table->get_indices ) { |
f82112a3 |
297 | my ($idef, $constraints) = create_index($index, { |
298 | generator => $generator, |
299 | }); |
7ed7402c |
300 | $idef and push @index_defs, $idef; |
bfb5a568 |
301 | push @constraint_defs, @$constraints; |
302 | } |
303 | |
304 | # |
305 | # Table constraints |
306 | # |
bfb5a568 |
307 | for my $c ( $table->get_constraints ) { |
f82112a3 |
308 | my ($cdefs, $fks) = create_constraint($c, { |
309 | generator => $generator, |
310 | }); |
bfb5a568 |
311 | push @constraint_defs, @$cdefs; |
312 | push @fks, @$fks; |
313 | } |
314 | |
3e98f7d9 |
315 | |
da936d63 |
316 | my $create_statement = join("\n", @comments); |
5342f5c1 |
317 | if ($add_drop_table) { |
7b4b17aa |
318 | if ($postgres_version >= 8.002) { |
f82112a3 |
319 | $create_statement .= "DROP TABLE IF EXISTS $table_name_qt CASCADE;\n"; |
5342f5c1 |
320 | } else { |
f82112a3 |
321 | $create_statement .= "DROP TABLE $table_name_qt CASCADE;\n"; |
5342f5c1 |
322 | } |
323 | } |
da936d63 |
324 | my $temporary = $table->extra->{temporary} ? "TEMPORARY " : ""; |
f82112a3 |
325 | $create_statement .= "CREATE ${temporary}TABLE $table_name_qt (\n" . |
bfb5a568 |
326 | join( ",\n", map { " $_" } @field_defs, @constraint_defs ). |
3406fd5b |
327 | "\n)" |
bfb5a568 |
328 | ; |
3406fd5b |
329 | $create_statement .= @index_defs ? ';' : q{}; |
330 | $create_statement .= ( $create_statement =~ /;$/ ? "\n" : q{} ) |
331 | . join(";\n", @index_defs); |
bfb5a568 |
332 | |
0b4b7709 |
333 | # |
334 | # Geometry |
335 | # |
54b8ff8c |
336 | if (my @geometry_columns = grep { is_geometry($_) } $table->get_fields) { |
6440741a |
337 | $create_statement .= join(";\n", '', map{ drop_geometry_column($_) } @geometry_columns) if $options->{add_drop_table}; |
338 | $create_statement .= join(";\n", '', map{ add_geometry_column($_) } @geometry_columns); |
0b4b7709 |
339 | } |
e83ad71c |
340 | |
08d91aad |
341 | return $create_statement, \@fks; |
bfb5a568 |
342 | } |
343 | |
296c2701 |
344 | sub create_view { |
345 | my ($view, $options) = @_; |
f82112a3 |
346 | my $generator = _generator($options); |
0e758018 |
347 | my $postgres_version = $options->{postgres_version} || 0; |
a25ac5d2 |
348 | my $add_drop_view = $options->{add_drop_view}; |
296c2701 |
349 | |
350 | my $view_name = $view->name; |
351 | debug("PKG: Looking at view '${view_name}'\n"); |
352 | |
353 | my $create = ''; |
2230ed2a |
354 | $create .= "--\n-- View: " . $generator->quote($view_name) . "\n--\n" |
296c2701 |
355 | unless $options->{no_comments}; |
0e758018 |
356 | if ($add_drop_view) { |
357 | if ($postgres_version >= 8.002) { |
2230ed2a |
358 | $create .= "DROP VIEW IF EXISTS " . $generator->quote($view_name) . ";\n"; |
0e758018 |
359 | } else { |
2230ed2a |
360 | $create .= "DROP VIEW " . $generator->quote($view_name) . ";\n"; |
0e758018 |
361 | } |
362 | } |
296c2701 |
363 | $create .= 'CREATE'; |
296c2701 |
364 | |
365 | my $extra = $view->extra; |
366 | $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary}; |
2230ed2a |
367 | $create .= " VIEW " . $generator->quote($view_name); |
296c2701 |
368 | |
369 | if ( my @fields = $view->fields ) { |
2230ed2a |
370 | my $field_list = join ', ', map { $generator->quote($_) } @fields; |
296c2701 |
371 | $create .= " ( ${field_list} )"; |
372 | } |
373 | |
374 | if ( my $sql = $view->sql ) { |
f59b2c0e |
375 | $create .= " AS\n ${sql}\n"; |
296c2701 |
376 | } |
377 | |
378 | if ( $extra->{check_option} ) { |
379 | $create .= ' WITH ' . uc $extra->{check_option} . ' CHECK OPTION'; |
380 | } |
381 | |
296c2701 |
382 | return $create; |
383 | } |
384 | |
ea93df61 |
385 | { |
bfb5a568 |
386 | |
387 | my %field_name_scope; |
388 | |
389 | sub create_field |
390 | { |
391 | my ($field, $options) = @_; |
392 | |
f82112a3 |
393 | my $generator = _generator($options); |
bfb5a568 |
394 | my $table_name = $field->table->name; |
395 | my $constraint_defs = $options->{constraint_defs} || []; |
5342f5c1 |
396 | my $postgres_version = $options->{postgres_version} || 0; |
79f55d7e |
397 | my $type_defs = $options->{type_defs} || {}; |
bfb5a568 |
398 | |
399 | $field_name_scope{$table_name} ||= {}; |
912e67a1 |
400 | my $field_name = $field->name; |
31bed2c0 |
401 | my $field_comments = ''; |
402 | if (my $comments = $field->comments) { |
403 | $comments =~ s/(?<!\A)^/ -- /mg; |
404 | $field_comments = "-- $comments\n "; |
405 | } |
bfb5a568 |
406 | |
2230ed2a |
407 | my $field_def = $field_comments . $generator->quote($field_name); |
bfb5a568 |
408 | |
409 | # |
410 | # Datatype |
411 | # |
bfb5a568 |
412 | my $data_type = lc $field->data_type; |
413 | my %extra = $field->extra; |
414 | my $list = $extra{'list'} || []; |
1868ddbe |
415 | my $commalist = join( ', ', map { __PACKAGE__->_quote_string($_) } @$list ); |
bfb5a568 |
416 | |
d31a1336 |
417 | if ($postgres_version >= 8.003 && $data_type eq 'enum') { |
79f55d7e |
418 | my $type_name = $extra{'custom_type_name'} || $field->table->name . '_' . $field->name . '_type'; |
5342f5c1 |
419 | $field_def .= ' '. $type_name; |
d25db732 |
420 | my $new_type_def = "DROP TYPE IF EXISTS $type_name CASCADE;\n" . |
79f55d7e |
421 | "CREATE TYPE $type_name AS ENUM ($commalist)"; |
422 | if (! exists $type_defs->{$type_name} ) { |
423 | $type_defs->{$type_name} = $new_type_def; |
424 | } elsif ( $type_defs->{$type_name} ne $new_type_def ) { |
425 | die "Attempted to redefine type name '$type_name' as a different type.\n"; |
426 | } |
5342f5c1 |
427 | } else { |
428 | $field_def .= ' '. convert_datatype($field); |
429 | } |
bfb5a568 |
430 | |
431 | # |
ea93df61 |
432 | # Default value |
bfb5a568 |
433 | # |
1868ddbe |
434 | __PACKAGE__->_apply_default_value( |
06baeb21 |
435 | $field, |
436 | \$field_def, |
437 | [ |
438 | 'NULL' => \'NULL', |
439 | 'now()' => 'now()', |
440 | 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', |
441 | ], |
442 | ); |
bfb5a568 |
443 | |
444 | # |
445 | # Not null constraint |
446 | # |
447 | $field_def .= ' NOT NULL' unless $field->is_nullable; |
448 | |
0b4b7709 |
449 | # |
450 | # Geometry constraints |
451 | # |
452 | if (is_geometry($field)) { |
453 | foreach ( create_geometry_constraints($field) ) { |
454 | my ($cdefs, $fks) = create_constraint($_, { |
455 | generator => $generator, |
456 | }); |
457 | push @$constraint_defs, @$cdefs; |
458 | push @$fks, @$fks; |
459 | } |
e83ad71c |
460 | } |
ea93df61 |
461 | |
bfb5a568 |
462 | return $field_def; |
463 | } |
464 | } |
465 | |
0b4b7709 |
466 | sub create_geometry_constraints { |
467 | my $field = shift; |
468 | |
469 | my @constraints; |
470 | push @constraints, SQL::Translator::Schema::Constraint->new( |
471 | name => "enforce_dims_".$field->name, |
472 | expression => "(ST_NDims($field) = ".$field->extra->{dimensions}.")", |
473 | table => $field->table, |
474 | type => CHECK_C, |
475 | ); |
476 | |
477 | push @constraints, SQL::Translator::Schema::Constraint->new( |
478 | name => "enforce_srid_".$field->name, |
479 | expression => "(ST_SRID($field) = ".$field->extra->{srid}.")", |
480 | table => $field->table, |
481 | type => CHECK_C, |
482 | ); |
483 | push @constraints, SQL::Translator::Schema::Constraint->new( |
484 | name => "enforce_geotype_".$field->name, |
485 | expression => "(GeometryType($field) = '".$field->extra->{geometry_type}."'::text OR $field IS NULL)", |
486 | table => $field->table, |
487 | type => CHECK_C, |
488 | ); |
489 | |
490 | return @constraints; |
e83ad71c |
491 | } |
492 | |
892573f2 |
493 | { |
b14cf6f4 |
494 | my %index_name; |
495 | sub create_index |
496 | { |
497 | my ($index, $options) = @_; |
bfb5a568 |
498 | |
b14cf6f4 |
499 | my $generator = _generator($options); |
500 | my $table_name = $index->table->name; |
501 | |
502 | my ($index_def, @constraint_defs); |
503 | |
504 | my $name |
505 | = $index->name |
506 | || join('_', $table_name, 'idx', ++$index_name{ $table_name }); |
507 | |
508 | my $type = $index->type || NORMAL; |
509 | my @fields = $index->fields; |
510 | return unless @fields; |
511 | |
512 | my $index_using; |
513 | my $index_where; |
514 | for my $opt ( $index->options ) { |
515 | if ( ref $opt eq 'HASH' ) { |
516 | foreach my $key (keys %$opt) { |
517 | my $value = $opt->{$key}; |
518 | next unless defined $value; |
519 | if ( uc($key) eq 'USING' ) { |
520 | $index_using = "USING $value"; |
521 | } |
522 | elsif ( uc($key) eq 'WHERE' ) { |
523 | $index_where = "WHERE $value"; |
524 | } |
525 | } |
526 | } |
5b36314d |
527 | } |
5b36314d |
528 | |
b14cf6f4 |
529 | my $def_start = 'CONSTRAINT ' . $generator->quote($name) . ' '; |
530 | my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ( $generator->quote($_) ) } @fields)) . ')'; |
531 | if ( $type eq PRIMARY_KEY ) { |
532 | push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; |
533 | } |
534 | elsif ( $type eq UNIQUE ) { |
535 | push @constraint_defs, "${def_start}UNIQUE " .$field_names; |
536 | } |
537 | elsif ( $type eq NORMAL ) { |
538 | $index_def = |
539 | 'CREATE INDEX ' . $generator->quote($name) . ' on ' . $generator->quote($table_name) . ' ' . |
540 | join ' ', grep { defined } $index_using, $field_names, $index_where; |
541 | } |
542 | else { |
543 | warn "Unknown index type ($type) on table $table_name.\n" |
544 | if $WARN; |
545 | } |
bfb5a568 |
546 | |
b14cf6f4 |
547 | return $index_def, \@constraint_defs; |
548 | } |
892573f2 |
549 | } |
bfb5a568 |
550 | |
892573f2 |
551 | sub create_constraint |
552 | { |
553 | my ($c, $options) = @_; |
bfb5a568 |
554 | |
f82112a3 |
555 | my $generator = _generator($options); |
892573f2 |
556 | my $table_name = $c->table->name; |
557 | my (@constraint_defs, @fks); |
bfb5a568 |
558 | |
892573f2 |
559 | my $name = $c->name || ''; |
bfb5a568 |
560 | |
5f31ed66 |
561 | my @fields = grep { defined } $c->fields; |
892573f2 |
562 | |
5f31ed66 |
563 | my @rfields = grep { defined } $c->reference_fields; |
892573f2 |
564 | |
565 | next if !@fields && $c->type ne CHECK_C; |
2230ed2a |
566 | my $def_start = $name ? 'CONSTRAINT ' . $generator->quote($name) . ' ' : ''; |
567 | my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ( $generator->quote($_) ) } @fields)) . ')'; |
892573f2 |
568 | if ( $c->type eq PRIMARY_KEY ) { |
5f31ed66 |
569 | push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; |
892573f2 |
570 | } |
571 | elsif ( $c->type eq UNIQUE ) { |
5f31ed66 |
572 | push @constraint_defs, "${def_start}UNIQUE " .$field_names; |
892573f2 |
573 | } |
574 | elsif ( $c->type eq CHECK_C ) { |
575 | my $expression = $c->expression; |
576 | push @constraint_defs, "${def_start}CHECK ($expression)"; |
577 | } |
578 | elsif ( $c->type eq FOREIGN_KEY ) { |
2230ed2a |
579 | my $def .= "ALTER TABLE " . $generator->quote($table_name) . " ADD ${def_start}FOREIGN KEY $field_names" |
580 | . "\n REFERENCES " . $generator->quote($c->reference_table); |
bfb5a568 |
581 | |
892573f2 |
582 | if ( @rfields ) { |
2230ed2a |
583 | $def .= ' (' . join( ', ', map { $generator->quote($_) } @rfields ) . ')'; |
892573f2 |
584 | } |
bfb5a568 |
585 | |
892573f2 |
586 | if ( $c->match_type ) { |
ea93df61 |
587 | $def .= ' MATCH ' . |
892573f2 |
588 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
589 | } |
5342f5c1 |
590 | |
892573f2 |
591 | if ( $c->on_delete ) { |
5863ad87 |
592 | $def .= ' ON DELETE '. $c->on_delete; |
892573f2 |
593 | } |
bfb5a568 |
594 | |
892573f2 |
595 | if ( $c->on_update ) { |
5863ad87 |
596 | $def .= ' ON UPDATE '. $c->on_update; |
892573f2 |
597 | } |
124b192c |
598 | |
892573f2 |
599 | if ( $c->deferrable ) { |
600 | $def .= ' DEFERRABLE'; |
124b192c |
601 | } |
602 | |
892573f2 |
603 | push @fks, "$def"; |
124b192c |
604 | } |
bfb5a568 |
605 | |
892573f2 |
606 | return \@constraint_defs, \@fks; |
607 | } |
608 | |
c96cd4a8 |
609 | sub create_trigger { |
610 | my ($trigger,$options) = @_; |
c9c8f3e1 |
611 | my $generator = _generator($options); |
c96cd4a8 |
612 | |
613 | my @statements; |
614 | |
c9c8f3e1 |
615 | push @statements, sprintf( 'DROP TRIGGER IF EXISTS %s', $generator->quote($trigger->name) ) |
c96cd4a8 |
616 | if $options->{add_drop_trigger}; |
617 | |
618 | my $scope = $trigger->scope || ''; |
619 | $scope = " FOR EACH $scope" if $scope; |
620 | |
621 | push @statements, sprintf( |
622 | 'CREATE TRIGGER %s %s %s ON %s%s %s', |
c9c8f3e1 |
623 | $generator->quote($trigger->name), |
c96cd4a8 |
624 | $trigger->perform_action_when, |
625 | join( ' OR ', @{ $trigger->database_events } ), |
c9c8f3e1 |
626 | $generator->quote($trigger->on_table), |
c96cd4a8 |
627 | $scope, |
628 | $trigger->action, |
629 | ); |
630 | |
631 | return @statements; |
632 | } |
633 | |
bfb5a568 |
634 | sub convert_datatype |
635 | { |
636 | my ($field) = @_; |
637 | |
638 | my @size = $field->size; |
639 | my $data_type = lc $field->data_type; |
aacb3187 |
640 | my $array = $data_type =~ s/\[\]$//; |
bfb5a568 |
641 | |
642 | if ( $data_type eq 'enum' ) { |
643 | # my $len = 0; |
644 | # $len = ($len < length($_)) ? length($_) : $len for (@$list); |
645 | # my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); |
ea93df61 |
646 | # push @$constraint_defs, |
2230ed2a |
647 | # 'CONSTRAINT "$chk_name" CHECK (' . $generator->quote(field_name) . |
bfb5a568 |
648 | # qq[IN ($commalist))]; |
649 | $data_type = 'character varying'; |
650 | } |
651 | elsif ( $data_type eq 'set' ) { |
652 | $data_type = 'character varying'; |
653 | } |
654 | elsif ( $field->is_auto_increment ) { |
655 | if ( defined $size[0] && $size[0] > 11 ) { |
656 | $data_type = 'bigserial'; |
657 | } |
658 | else { |
659 | $data_type = 'serial'; |
660 | } |
661 | undef @size; |
662 | } |
663 | else { |
ada2826e |
664 | $data_type = defined $translate{ lc $data_type } ? |
665 | $translate{ lc $data_type } : |
bfb5a568 |
666 | $data_type; |
667 | } |
668 | |
ad258776 |
669 | if ( $data_type =~ /^time/i || $data_type =~ /^interval/i ) { |
bfb5a568 |
670 | if ( defined $size[0] && $size[0] > 6 ) { |
671 | $size[0] = 6; |
672 | } |
673 | } |
674 | |
675 | if ( $data_type eq 'integer' ) { |
676 | if ( defined $size[0] && $size[0] > 0) { |
677 | if ( $size[0] > 10 ) { |
678 | $data_type = 'bigint'; |
679 | } |
680 | elsif ( $size[0] < 5 ) { |
681 | $data_type = 'smallint'; |
682 | } |
683 | else { |
684 | $data_type = 'integer'; |
685 | } |
686 | } |
687 | else { |
688 | $data_type = 'integer'; |
689 | } |
690 | } |
52bc2e13 |
691 | |
692 | my $type_with_size = join('|', |
e189562c |
693 | 'bit', 'varbit', 'character', 'bit varying', 'character varying', |
90089d63 |
694 | 'time', 'timestamp', 'interval', 'numeric', 'float' |
52bc2e13 |
695 | ); |
696 | |
697 | if ( $data_type !~ /$type_with_size/ ) { |
ea93df61 |
698 | @size = (); |
e56dabb7 |
699 | } |
bfb5a568 |
700 | |
ad258776 |
701 | if (defined $size[0] && $size[0] > 0 && $data_type =~ /^time/i ) { |
702 | $data_type =~ s/^(time.*?)( with.*)?$/$1($size[0])/; |
703 | $data_type .= $2 if(defined $2); |
704 | } elsif ( defined $size[0] && $size[0] > 0 ) { |
e189562c |
705 | $data_type .= '(' . join( ',', @size ) . ')'; |
08d91aad |
706 | } |
aacb3187 |
707 | if($array) |
708 | { |
709 | $data_type .= '[]'; |
710 | } |
bfb5a568 |
711 | |
140a1dad |
712 | # |
713 | # Geography |
714 | # |
715 | if($data_type eq 'geography'){ |
aa068030 |
716 | $data_type .= '('.$field->extra->{geography_type}.','. $field->extra->{srid} .')' |
140a1dad |
717 | } |
718 | |
bfb5a568 |
719 | return $data_type; |
720 | } |
721 | |
722 | |
723 | sub alter_field |
724 | { |
f7410082 |
725 | my ($from_field, $to_field, $options) = @_; |
bfb5a568 |
726 | |
ea93df61 |
727 | die "Can't alter field in another table" |
bfb5a568 |
728 | if($from_field->table->name ne $to_field->table->name); |
729 | |
f7410082 |
730 | my $generator = _generator($options); |
bfb5a568 |
731 | my @out; |
ea93df61 |
732 | |
e83ad71c |
733 | # drop geometry column and constraints |
54b8ff8c |
734 | push @out, |
735 | drop_geometry_column($from_field), |
736 | drop_geometry_constraints($from_field), |
737 | if is_geometry($from_field); |
c50d1a0a |
738 | |
739 | # it's necessary to start with rename column cause this would affect |
740 | # all of the following statements which would be broken if do the |
741 | # rename later |
742 | # BUT: drop geometry is done before the rename, cause it work's on the |
743 | # $from_field directly |
744 | push @out, sprintf('ALTER TABLE %s RENAME COLUMN %s TO %s', |
f7410082 |
745 | map($generator->quote($_), |
746 | $to_field->table->name, |
747 | $from_field->name, |
748 | $to_field->name, |
749 | ), |
750 | ) |
751 | if($from_field->name ne $to_field->name); |
c50d1a0a |
752 | |
3406fd5b |
753 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', |
f7410082 |
754 | map($generator->quote($_), |
755 | $to_field->table->name, |
756 | $to_field->name |
757 | ), |
758 | ) |
759 | if(!$to_field->is_nullable and $from_field->is_nullable); |
bfb5a568 |
760 | |
90726ffd |
761 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP NOT NULL', |
f7410082 |
762 | map($generator->quote($_), |
763 | $to_field->table->name, |
764 | $to_field->name |
765 | ), |
766 | ) |
767 | if (!$from_field->is_nullable and $to_field->is_nullable); |
90726ffd |
768 | |
769 | |
bfb5a568 |
770 | my $from_dt = convert_datatype($from_field); |
771 | my $to_dt = convert_datatype($to_field); |
3406fd5b |
772 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', |
f7410082 |
773 | map($generator->quote($_), |
774 | $to_field->table->name, |
775 | $to_field->name |
776 | ), |
777 | $to_dt, |
778 | ) |
779 | if($to_dt ne $from_dt); |
bfb5a568 |
780 | |
3406fd5b |
781 | my $old_default = $from_field->default_value; |
782 | my $new_default = $to_field->default_value; |
90726ffd |
783 | my $default_value = $to_field->default_value; |
ea93df61 |
784 | |
90726ffd |
785 | # fixes bug where output like this was created: |
786 | # ALTER TABLE users ALTER COLUMN column SET DEFAULT ThisIsUnescaped; |
787 | if(ref $default_value eq "SCALAR" ) { |
788 | $default_value = $$default_value; |
789 | } elsif( defined $default_value && $to_dt =~ /^(character|text)/xsmi ) { |
1868ddbe |
790 | $default_value = __PACKAGE__->_quote_string($default_value); |
90726ffd |
791 | } |
ea93df61 |
792 | |
3406fd5b |
793 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', |
f7410082 |
794 | map($generator->quote($_), |
795 | $to_field->table->name, |
796 | $to_field->name, |
797 | ), |
798 | $default_value, |
799 | ) |
3406fd5b |
800 | if ( defined $new_default && |
801 | (!defined $old_default || $old_default ne $new_default) ); |
bfb5a568 |
802 | |
ea93df61 |
803 | # fixes bug where removing the DEFAULT statement of a column |
804 | # would result in no change |
805 | |
806 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP DEFAULT', |
f7410082 |
807 | map($generator->quote($_), |
808 | $to_field->table->name, |
809 | $to_field->name, |
810 | ), |
811 | ) |
90726ffd |
812 | if ( !defined $new_default && defined $old_default ); |
ea93df61 |
813 | |
10d7ce8b |
814 | # add geometry column and constraints |
54b8ff8c |
815 | push @out, |
816 | add_geometry_column($to_field), |
817 | add_geometry_constraints($to_field) |
818 | if is_geometry($to_field); |
ea93df61 |
819 | |
c50d1a0a |
820 | return wantarray ? @out : join(";\n", @out); |
bfb5a568 |
821 | } |
822 | |
3406fd5b |
823 | sub rename_field { alter_field(@_) } |
824 | |
bfb5a568 |
825 | sub add_field |
826 | { |
f7410082 |
827 | my ($new_field,$options) = @_; |
bfb5a568 |
828 | |
3406fd5b |
829 | my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', |
f7410082 |
830 | _generator($options)->quote($new_field->table->name), |
831 | create_field($new_field, $options)); |
6440741a |
832 | $out .= ";\n".add_geometry_column($new_field) |
833 | . ";\n".add_geometry_constraints($new_field) |
54b8ff8c |
834 | if is_geometry($new_field); |
bfb5a568 |
835 | return $out; |
836 | |
837 | } |
838 | |
839 | sub drop_field |
840 | { |
c50d1a0a |
841 | my ($old_field, $options) = @_; |
842 | |
f82112a3 |
843 | my $generator = _generator($options); |
bfb5a568 |
844 | |
3406fd5b |
845 | my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', |
2230ed2a |
846 | $generator->quote($old_field->table->name), |
847 | $generator->quote($old_field->name)); |
6440741a |
848 | $out .= ";\n".drop_geometry_column($old_field) |
54b8ff8c |
849 | if is_geometry($old_field); |
ea93df61 |
850 | return $out; |
bfb5a568 |
851 | } |
852 | |
0b4b7709 |
853 | sub add_geometry_column { |
54b8ff8c |
854 | my ($field, $options) = @_; |
0b4b7709 |
855 | |
54b8ff8c |
856 | return sprintf( |
0b4b7709 |
857 | "INSERT INTO geometry_columns VALUES ('%s','%s','%s','%s','%s','%s','%s')", |
858 | '', |
859 | $field->table->schema->name, |
860 | $options->{table} ? $options->{table} : $field->table->name, |
861 | $field->name, |
862 | $field->extra->{dimensions}, |
863 | $field->extra->{srid}, |
864 | $field->extra->{geometry_type}, |
865 | ); |
e83ad71c |
866 | } |
867 | |
0b4b7709 |
868 | sub drop_geometry_column { |
869 | my $field = shift; |
ea93df61 |
870 | |
54b8ff8c |
871 | return sprintf( |
0b4b7709 |
872 | "DELETE FROM geometry_columns WHERE f_table_schema = '%s' AND f_table_name = '%s' AND f_geometry_column = '%s'", |
873 | $field->table->schema->name, |
874 | $field->table->name, |
875 | $field->name, |
876 | ); |
e83ad71c |
877 | } |
878 | |
0b4b7709 |
879 | sub add_geometry_constraints { |
54b8ff8c |
880 | my ($field, $options) = @_; |
ea93df61 |
881 | |
6440741a |
882 | return join(";\n", map { alter_create_constraint($_) } |
54b8ff8c |
883 | create_geometry_constraints($field)); |
e83ad71c |
884 | } |
885 | |
0b4b7709 |
886 | sub drop_geometry_constraints { |
54b8ff8c |
887 | my ($field, $options) = @_; |
ea93df61 |
888 | |
6440741a |
889 | return join(";\n", map { alter_drop_constraint($_) } |
54b8ff8c |
890 | create_geometry_constraints($field)); |
ea93df61 |
891 | |
e83ad71c |
892 | } |
893 | |
3406fd5b |
894 | sub alter_table { |
895 | my ($to_table, $options) = @_; |
f82112a3 |
896 | my $generator = _generator($options); |
3406fd5b |
897 | my $out = sprintf('ALTER TABLE %s %s', |
2230ed2a |
898 | $generator->quote($to_table->name), |
3406fd5b |
899 | $options->{alter_table_action}); |
6440741a |
900 | $out .= ";\n".$options->{geometry_changes} if $options->{geometry_changes}; |
3406fd5b |
901 | return $out; |
902 | } |
903 | |
904 | sub rename_table { |
905 | my ($old_table, $new_table, $options) = @_; |
f82112a3 |
906 | my $generator = _generator($options); |
2230ed2a |
907 | $options->{alter_table_action} = "RENAME TO " . $generator->quote($new_table); |
e83ad71c |
908 | |
54b8ff8c |
909 | my @geometry_changes = map { |
910 | drop_geometry_column($_), |
911 | add_geometry_column($_, { table => $new_table }), |
912 | } grep { is_geometry($_) } $old_table->get_fields; |
ea93df61 |
913 | |
6440741a |
914 | $options->{geometry_changes} = join (";\n",@geometry_changes) if @geometry_changes; |
ea93df61 |
915 | |
3406fd5b |
916 | return alter_table($old_table, $options); |
917 | } |
918 | |
919 | sub alter_create_index { |
920 | my ($index, $options) = @_; |
f82112a3 |
921 | my $generator = _generator($options); |
3406fd5b |
922 | my ($idef, $constraints) = create_index($index, { |
f82112a3 |
923 | generator => $generator, |
3406fd5b |
924 | }); |
925 | return $index->type eq NORMAL ? $idef |
926 | : sprintf('ALTER TABLE %s ADD %s', |
2230ed2a |
927 | $generator->quote($index->table->name), |
3406fd5b |
928 | join(q{}, @$constraints) |
929 | ); |
930 | } |
931 | |
932 | sub alter_drop_index { |
933 | my ($index, $options) = @_; |
f7410082 |
934 | return 'DROP INDEX '. _generator($options)->quote($index->name); |
3406fd5b |
935 | } |
936 | |
937 | sub alter_drop_constraint { |
938 | my ($c, $options) = @_; |
f82112a3 |
939 | my $generator = _generator($options); |
c50d1a0a |
940 | |
bc9b1c11 |
941 | # attention: Postgres has a very special naming structure for naming |
942 | # foreign keys and primary keys. It names them using the name of the |
943 | # table as prefix and fkey or pkey as suffix, concatenated by an underscore |
944 | my $c_name; |
945 | if( $c->name ) { |
f7410082 |
946 | # Already has a name, just use it |
947 | $c_name = $c->name; |
bc9b1c11 |
948 | } elsif ( $c->type eq FOREIGN_KEY ) { |
949 | # Doesn't have a name, and is foreign key, append '_fkey' |
f7410082 |
950 | $c_name = $c->table->name . '_' . ($c->fields)[0] . '_fkey'; |
bc9b1c11 |
951 | } elsif ( $c->type eq PRIMARY_KEY ) { |
952 | # Doesn't have a name, and is primary key, append '_pkey' |
f7410082 |
953 | $c_name = $c->table->name . '_pkey'; |
bc9b1c11 |
954 | } |
955 | |
c50d1a0a |
956 | return sprintf( |
957 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
f7410082 |
958 | map { $generator->quote($_) } $c->table->name, $c_name, |
c50d1a0a |
959 | ); |
3406fd5b |
960 | } |
961 | |
962 | sub alter_create_constraint { |
963 | my ($index, $options) = @_; |
f82112a3 |
964 | my $generator = _generator($options); |
90726ffd |
965 | my ($defs, $fks) = create_constraint(@_); |
ea93df61 |
966 | |
90726ffd |
967 | # return if there are no constraint definitions so we don't run |
968 | # into output like this: |
969 | # ALTER TABLE users ADD ; |
ea93df61 |
970 | |
90726ffd |
971 | return unless(@{$defs} || @{$fks}); |
972 | return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks}) |
2230ed2a |
973 | : join( ' ', 'ALTER TABLE', $generator->quote($index->table->name), |
90726ffd |
974 | 'ADD', join(q{}, @{$defs}, @{$fks}) |
3406fd5b |
975 | ); |
976 | } |
977 | |
978 | sub drop_table { |
979 | my ($table, $options) = @_; |
f82112a3 |
980 | my $generator = _generator($options); |
2230ed2a |
981 | my $out = "DROP TABLE " . $generator->quote($table) . " CASCADE"; |
ea93df61 |
982 | |
e83ad71c |
983 | my @geometry_drops = map { drop_geometry_column($_); } grep { is_geometry($_) } $table->get_fields; |
984 | |
6440741a |
985 | $out .= join(";\n", '', @geometry_drops) if @geometry_drops; |
e83ad71c |
986 | return $out; |
3406fd5b |
987 | } |
988 | |
0c610cc8 |
989 | sub batch_alter_table { |
990 | my ( $table, $diff_hash, $options ) = @_; |
0c610cc8 |
991 | |
992 | # as long as we're not renaming the table we don't need to be here |
993 | if ( @{$diff_hash->{rename_table}} == 0 ) { |
86609eaa |
994 | return batch_alter_table_statements($diff_hash, $options); |
0c610cc8 |
995 | } |
996 | |
997 | # first we need to perform drops which are on old table |
86609eaa |
998 | my @sql = batch_alter_table_statements($diff_hash, $options, qw( |
999 | alter_drop_constraint |
0c610cc8 |
1000 | alter_drop_index |
86609eaa |
1001 | drop_field |
1002 | )); |
0c610cc8 |
1003 | |
1004 | # next comes the rename_table |
1005 | my $old_table = $diff_hash->{rename_table}[0][0]; |
1006 | push @sql, rename_table( $old_table, $table, $options ); |
1007 | |
1008 | # for alter_field (and so also rename_field) we need to make sure old |
1009 | # field has table name set to new table otherwise calling alter_field dies |
1010 | $diff_hash->{alter_field} = |
1011 | [map { $_->[0]->table($table) && $_ } @{$diff_hash->{alter_field}}]; |
1012 | $diff_hash->{rename_field} = |
1013 | [map { $_->[0]->table($table) && $_ } @{$diff_hash->{rename_field}}]; |
1014 | |
1015 | # now add everything else |
86609eaa |
1016 | push @sql, batch_alter_table_statements($diff_hash, $options, qw( |
1017 | add_field |
0c610cc8 |
1018 | alter_field |
1019 | rename_field |
1020 | alter_create_index |
1021 | alter_create_constraint |
86609eaa |
1022 | alter_table |
1023 | )); |
0c610cc8 |
1024 | |
1025 | return @sql; |
1026 | } |
1027 | |
f8f0253c |
1028 | 1; |
f8f0253c |
1029 | |
96844cae |
1030 | # ------------------------------------------------------------------- |
1031 | # Life is full of misery, loneliness, and suffering -- |
1032 | # and it's all over much too soon. |
1033 | # Woody Allen |
1034 | # ------------------------------------------------------------------- |
f8f0253c |
1035 | |
96844cae |
1036 | =pod |
f8f0253c |
1037 | |
20770e44 |
1038 | =head1 SEE ALSO |
1039 | |
1040 | SQL::Translator, SQL::Translator::Producer::Oracle. |
1041 | |
f8f0253c |
1042 | =head1 AUTHOR |
1043 | |
f997b9ab |
1044 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>. |
f8f0253c |
1045 | |
1046 | =cut |