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; |
7b4b17aa |
30 | use SQL::Translator::Utils qw(debug header_comment parse_dbms_version); |
f8f0253c |
31 | use Data::Dumper; |
32 | |
892573f2 |
33 | my ( %translate, %index_name ); |
bfb5a568 |
34 | my $max_id_length; |
35 | |
36 | BEGIN { |
37 | |
38 | %translate = ( |
d529894e |
39 | # |
40 | # MySQL types |
41 | # |
42 | bigint => 'bigint', |
4328d7bd |
43 | double => 'numeric', |
44 | decimal => 'numeric', |
45 | float => 'numeric', |
d529894e |
46 | int => 'integer', |
47 | mediumint => 'integer', |
48 | smallint => 'smallint', |
49 | tinyint => 'smallint', |
c8c17a58 |
50 | char => 'character', |
da8e499e |
51 | varchar => 'character varying', |
d529894e |
52 | longtext => 'text', |
53 | mediumtext => 'text', |
54 | text => 'text', |
55 | tinytext => 'text', |
56 | tinyblob => 'bytea', |
57 | blob => 'bytea', |
58 | mediumblob => 'bytea', |
59 | longblob => 'bytea', |
da8e499e |
60 | enum => 'character varying', |
61 | set => 'character varying', |
d529894e |
62 | date => 'date', |
63 | datetime => 'timestamp', |
e56dabb7 |
64 | time => 'time', |
d529894e |
65 | timestamp => 'timestamp', |
66 | year => 'date', |
67 | |
68 | # |
69 | # Oracle types |
70 | # |
96844cae |
71 | number => 'integer', |
c8c17a58 |
72 | char => 'character', |
da8e499e |
73 | varchar2 => 'character varying', |
96844cae |
74 | long => 'text', |
75 | CLOB => 'bytea', |
76 | date => 'date', |
77 | |
78 | # |
79 | # Sybase types |
80 | # |
81 | int => 'integer', |
82 | money => 'money', |
da8e499e |
83 | varchar => 'character varying', |
96844cae |
84 | datetime => 'timestamp', |
85 | text => 'text', |
4328d7bd |
86 | real => 'numeric', |
96844cae |
87 | comment => 'text', |
88 | bit => 'bit', |
89 | tinyint => 'smallint', |
4328d7bd |
90 | float => 'numeric', |
d529894e |
91 | ); |
92 | |
bfb5a568 |
93 | $max_id_length = 62; |
94 | } |
96844cae |
95 | my %reserved = map { $_, 1 } qw[ |
ea93df61 |
96 | ALL ANALYSE ANALYZE AND ANY AS ASC |
96844cae |
97 | BETWEEN BINARY BOTH |
98 | CASE CAST CHECK COLLATE COLUMN CONSTRAINT CROSS |
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99 | CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER |
96844cae |
100 | DEFAULT DEFERRABLE DESC DISTINCT DO |
101 | ELSE END EXCEPT |
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102 | FALSE FOR FOREIGN FREEZE FROM FULL |
103 | GROUP HAVING |
104 | ILIKE IN INITIALLY INNER INTERSECT INTO IS ISNULL |
105 | JOIN LEADING LEFT LIKE LIMIT |
96844cae |
106 | NATURAL NEW NOT NOTNULL NULL |
107 | OFF OFFSET OLD ON ONLY OR ORDER OUTER OVERLAPS |
ea93df61 |
108 | PRIMARY PUBLIC REFERENCES RIGHT |
109 | SELECT SESSION_USER SOME TABLE THEN TO TRAILING TRUE |
96844cae |
110 | UNION UNIQUE USER USING VERBOSE WHEN WHERE |
111 | ]; |
d529894e |
112 | |
bfb5a568 |
113 | # my $max_id_length = 62; |
96844cae |
114 | my %used_identifiers = (); |
115 | my %global_names; |
96844cae |
116 | my %truncated; |
117 | |
118 | =pod |
119 | |
120 | =head1 PostgreSQL Create Table Syntax |
121 | |
122 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
123 | { column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ] |
124 | | table_constraint } [, ... ] |
125 | ) |
126 | [ INHERITS ( parent_table [, ... ] ) ] |
127 | [ WITH OIDS | WITHOUT OIDS ] |
128 | |
129 | where column_constraint is: |
130 | |
131 | [ CONSTRAINT constraint_name ] |
132 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
133 | CHECK (expression) | |
134 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
135 | [ ON DELETE action ] [ ON UPDATE action ] } |
136 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
137 | |
138 | and table_constraint is: |
139 | |
140 | [ CONSTRAINT constraint_name ] |
141 | { UNIQUE ( column_name [, ... ] ) | |
142 | PRIMARY KEY ( column_name [, ... ] ) | |
143 | CHECK ( expression ) | |
144 | FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
145 | [ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] } |
146 | [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
147 | |
da8e499e |
148 | =head1 Create Index Syntax |
149 | |
150 | CREATE [ UNIQUE ] INDEX index_name ON table |
151 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
152 | [ WHERE predicate ] |
153 | CREATE [ UNIQUE ] INDEX index_name ON table |
154 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
155 | [ WHERE predicate ] |
156 | |
96844cae |
157 | =cut |
f8f0253c |
158 | |
159 | sub produce { |
e189562c |
160 | my $translator = shift; |
161 | local $DEBUG = $translator->debug; |
162 | local $WARN = $translator->show_warnings; |
163 | my $no_comments = $translator->no_comments; |
164 | my $add_drop_table = $translator->add_drop_table; |
165 | my $schema = $translator->schema; |
166 | my $pargs = $translator->producer_args; |
7b4b17aa |
167 | my $postgres_version = parse_dbms_version( |
168 | $pargs->{postgres_version}, 'perl' |
169 | ); |
96844cae |
170 | |
e189562c |
171 | my $qt = $translator->quote_table_names ? q{"} : q{}; |
172 | my $qf = $translator->quote_field_names ? q{"} : q{}; |
ea93df61 |
173 | |
bf75adec |
174 | my @output; |
175 | push @output, header_comment unless ($no_comments); |
96844cae |
176 | |
08d91aad |
177 | my (@table_defs, @fks); |
79f55d7e |
178 | my %type_defs; |
0c43e0a1 |
179 | for my $table ( $schema->get_tables ) { |
08d91aad |
180 | |
ea93df61 |
181 | my ($table_def, $fks) = create_table($table, { |
e189562c |
182 | quote_table_names => $qt, |
183 | quote_field_names => $qf, |
184 | no_comments => $no_comments, |
185 | postgres_version => $postgres_version, |
186 | add_drop_table => $add_drop_table, |
79f55d7e |
187 | type_defs => \%type_defs, |
e189562c |
188 | }); |
189 | |
08d91aad |
190 | push @table_defs, $table_def; |
191 | push @fks, @$fks; |
da8e499e |
192 | } |
193 | |
296c2701 |
194 | for my $view ( $schema->get_views ) { |
195 | push @table_defs, create_view($view, { |
0e758018 |
196 | postgres_version => $postgres_version, |
a25ac5d2 |
197 | add_drop_view => $add_drop_table, |
296c2701 |
198 | quote_table_names => $qt, |
199 | quote_field_names => $qf, |
200 | no_comments => $no_comments, |
201 | }); |
202 | } |
203 | |
79f55d7e |
204 | push @output, map { "$_;\n\n" } values %type_defs; |
bf75adec |
205 | push @output, map { "$_;\n\n" } @table_defs; |
08d91aad |
206 | if ( @fks ) { |
bf75adec |
207 | push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; |
208 | push @output, map { "$_;\n\n" } @fks; |
08d91aad |
209 | } |
021dbce8 |
210 | |
da8e499e |
211 | if ( $WARN ) { |
212 | if ( %truncated ) { |
213 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
214 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
215 | } |
f8f0253c |
216 | } |
217 | |
bf75adec |
218 | return wantarray |
219 | ? @output |
220 | : join ('', @output); |
f8f0253c |
221 | } |
222 | |
96844cae |
223 | sub mk_name { |
ea93df61 |
224 | my $basename = shift || ''; |
225 | my $type = shift || ''; |
226 | my $scope = shift || ''; |
0c43e0a1 |
227 | my $critical = shift || ''; |
96844cae |
228 | my $basename_orig = $basename; |
bfb5a568 |
229 | # my $max_id_length = 62; |
ea93df61 |
230 | my $max_name = $type |
231 | ? $max_id_length - (length($type) + 1) |
2ad4c2c8 |
232 | : $max_id_length; |
ea93df61 |
233 | $basename = substr( $basename, 0, $max_name ) |
96844cae |
234 | if length( $basename ) > $max_name; |
235 | my $name = $type ? "${type}_$basename" : $basename; |
236 | |
237 | if ( $basename ne $basename_orig and $critical ) { |
238 | my $show_type = $type ? "+'$type'" : ""; |
239 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
240 | "character limit to make '$name'\n" if $WARN; |
241 | $truncated{ $basename_orig } = $name; |
242 | } |
243 | |
244 | $scope ||= \%global_names; |
245 | if ( my $prev = $scope->{ $name } ) { |
246 | my $name_orig = $name; |
247 | $name .= sprintf( "%02d", ++$prev ); |
ea93df61 |
248 | substr($name, $max_id_length - 3) = "00" |
96844cae |
249 | if length( $name ) > $max_id_length; |
250 | |
251 | warn "The name '$name_orig' has been changed to ", |
252 | "'$name' to make it unique.\n" if $WARN; |
253 | |
254 | $scope->{ $name_orig }++; |
f8f0253c |
255 | } |
96844cae |
256 | |
257 | $scope->{ $name }++; |
258 | return $name; |
259 | } |
260 | |
e83ad71c |
261 | sub is_geometry |
262 | { |
ea93df61 |
263 | my $field = shift; |
264 | return 1 if $field->data_type eq 'geometry'; |
140a1dad |
265 | } |
266 | |
267 | sub is_geography |
268 | { |
269 | my $field = shift; |
270 | return 1 if $field->data_type eq 'geography'; |
e83ad71c |
271 | } |
272 | |
ea93df61 |
273 | sub create_table |
bfb5a568 |
274 | { |
275 | my ($table, $options) = @_; |
276 | |
277 | my $qt = $options->{quote_table_names} || ''; |
278 | my $qf = $options->{quote_field_names} || ''; |
279 | my $no_comments = $options->{no_comments} || 0; |
280 | my $add_drop_table = $options->{add_drop_table} || 0; |
5342f5c1 |
281 | my $postgres_version = $options->{postgres_version} || 0; |
79f55d7e |
282 | my $type_defs = $options->{type_defs} || {}; |
bfb5a568 |
283 | |
3406fd5b |
284 | my $table_name = $table->name or next; |
3406fd5b |
285 | my ( $fql_tbl_name ) = ( $table_name =~ s/\W(.*)$// ) ? $1 : q{}; |
286 | my $table_name_ur = $qt ? $table_name |
5f31ed66 |
287 | : $fql_tbl_name ? join('.', $table_name, $fql_tbl_name) |
288 | : $table_name; |
bfb5a568 |
289 | $table->name($table_name_ur); |
290 | |
124b192c |
291 | # print STDERR "$table_name table_name\n"; |
79f55d7e |
292 | my ( @comments, @field_defs, @sequence_defs, @constraint_defs, @fks ); |
bfb5a568 |
293 | |
7ed7402c |
294 | push @comments, "--\n-- Table: $table_name_ur\n--\n" unless $no_comments; |
bfb5a568 |
295 | |
296 | if ( $table->comments and !$no_comments ){ |
297 | my $c = "-- Comments: \n-- "; |
298 | $c .= join "\n-- ", $table->comments; |
7ed7402c |
299 | $c .= "\n--\n"; |
bfb5a568 |
300 | push @comments, $c; |
301 | } |
302 | |
303 | # |
304 | # Fields |
305 | # |
306 | my %field_name_scope; |
307 | for my $field ( $table->get_fields ) { |
308 | push @field_defs, create_field($field, { quote_table_names => $qt, |
309 | quote_field_names => $qf, |
310 | table_name => $table_name_ur, |
5342f5c1 |
311 | postgres_version => $postgres_version, |
79f55d7e |
312 | type_defs => $type_defs, |
bfb5a568 |
313 | constraint_defs => \@constraint_defs,}); |
314 | } |
315 | |
316 | # |
317 | # Index Declarations |
318 | # |
319 | my @index_defs = (); |
320 | # my $idx_name_default; |
321 | for my $index ( $table->get_indices ) { |
322 | my ($idef, $constraints) = create_index($index, |
ea93df61 |
323 | { |
bfb5a568 |
324 | quote_field_names => $qf, |
325 | quote_table_names => $qt, |
326 | table_name => $table_name, |
327 | }); |
7ed7402c |
328 | $idef and push @index_defs, $idef; |
bfb5a568 |
329 | push @constraint_defs, @$constraints; |
330 | } |
331 | |
332 | # |
333 | # Table constraints |
334 | # |
335 | my $c_name_default; |
336 | for my $c ( $table->get_constraints ) { |
ea93df61 |
337 | my ($cdefs, $fks) = create_constraint($c, |
338 | { |
bfb5a568 |
339 | quote_field_names => $qf, |
340 | quote_table_names => $qt, |
341 | table_name => $table_name, |
342 | }); |
343 | push @constraint_defs, @$cdefs; |
344 | push @fks, @$fks; |
345 | } |
346 | |
3e98f7d9 |
347 | |
348 | my $temporary = ""; |
349 | |
350 | if(exists $table->{extra}{temporary}) { |
351 | $temporary = $table->{extra}{temporary} ? "TEMPORARY " : ""; |
ea93df61 |
352 | } |
3e98f7d9 |
353 | |
bfb5a568 |
354 | my $create_statement; |
355 | $create_statement = join("\n", @comments); |
5342f5c1 |
356 | if ($add_drop_table) { |
7b4b17aa |
357 | if ($postgres_version >= 8.002) { |
5342f5c1 |
358 | $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n]; |
5342f5c1 |
359 | } else { |
360 | $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n]; |
361 | } |
362 | } |
3e98f7d9 |
363 | $create_statement .= qq[CREATE ${temporary}TABLE $qt$table_name_ur$qt (\n]. |
bfb5a568 |
364 | join( ",\n", map { " $_" } @field_defs, @constraint_defs ). |
3406fd5b |
365 | "\n)" |
bfb5a568 |
366 | ; |
3406fd5b |
367 | $create_statement .= @index_defs ? ';' : q{}; |
368 | $create_statement .= ( $create_statement =~ /;$/ ? "\n" : q{} ) |
369 | . join(";\n", @index_defs); |
bfb5a568 |
370 | |
ea93df61 |
371 | # |
372 | # Geometry |
373 | # |
374 | if(grep { is_geometry($_) } $table->get_fields){ |
e83ad71c |
375 | $create_statement .= ";"; |
140a1dad |
376 | my @geometry_columns; |
377 | foreach my $col ($table->get_fields) { push(@geometry_columns,$col) if is_geometry($col); } |
ea93df61 |
378 | $create_statement .= "\n".join("\n", map{ drop_geometry_column($_) } @geometry_columns) if $options->{add_drop_table}; |
379 | $create_statement .= "\n".join("\n", map{ add_geometry_column($_) } @geometry_columns); |
380 | } |
e83ad71c |
381 | |
08d91aad |
382 | return $create_statement, \@fks; |
bfb5a568 |
383 | } |
384 | |
296c2701 |
385 | sub create_view { |
386 | my ($view, $options) = @_; |
387 | my $qt = $options->{quote_table_names} || ''; |
388 | my $qf = $options->{quote_field_names} || ''; |
0e758018 |
389 | my $postgres_version = $options->{postgres_version} || 0; |
a25ac5d2 |
390 | my $add_drop_view = $options->{add_drop_view}; |
296c2701 |
391 | |
392 | my $view_name = $view->name; |
393 | debug("PKG: Looking at view '${view_name}'\n"); |
394 | |
395 | my $create = ''; |
396 | $create .= "--\n-- View: ${qt}${view_name}${qt}\n--\n" |
397 | unless $options->{no_comments}; |
0e758018 |
398 | if ($add_drop_view) { |
399 | if ($postgres_version >= 8.002) { |
400 | $create .= "DROP VIEW IF EXISTS ${qt}${view_name}${qt};\n"; |
401 | } else { |
402 | $create .= "DROP VIEW ${qt}${view_name}${qt};\n"; |
403 | } |
404 | } |
296c2701 |
405 | $create .= 'CREATE'; |
296c2701 |
406 | |
407 | my $extra = $view->extra; |
408 | $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary}; |
409 | $create .= " VIEW ${qt}${view_name}${qt}"; |
410 | |
411 | if ( my @fields = $view->fields ) { |
412 | my $field_list = join ', ', map { "${qf}${_}${qf}" } @fields; |
413 | $create .= " ( ${field_list} )"; |
414 | } |
415 | |
416 | if ( my $sql = $view->sql ) { |
f59b2c0e |
417 | $create .= " AS\n ${sql}\n"; |
296c2701 |
418 | } |
419 | |
420 | if ( $extra->{check_option} ) { |
421 | $create .= ' WITH ' . uc $extra->{check_option} . ' CHECK OPTION'; |
422 | } |
423 | |
296c2701 |
424 | return $create; |
425 | } |
426 | |
ea93df61 |
427 | { |
bfb5a568 |
428 | |
429 | my %field_name_scope; |
430 | |
431 | sub create_field |
432 | { |
433 | my ($field, $options) = @_; |
434 | |
435 | my $qt = $options->{quote_table_names} || ''; |
436 | my $qf = $options->{quote_field_names} || ''; |
437 | my $table_name = $field->table->name; |
438 | my $constraint_defs = $options->{constraint_defs} || []; |
5342f5c1 |
439 | my $postgres_version = $options->{postgres_version} || 0; |
79f55d7e |
440 | my $type_defs = $options->{type_defs} || {}; |
bfb5a568 |
441 | |
442 | $field_name_scope{$table_name} ||= {}; |
912e67a1 |
443 | my $field_name = $field->name; |
ea93df61 |
444 | my $field_comments = $field->comments |
445 | ? "-- " . $field->comments . "\n " |
bfb5a568 |
446 | : ''; |
447 | |
5f31ed66 |
448 | my $field_def = $field_comments.qq[$qf$field_name$qf]; |
bfb5a568 |
449 | |
450 | # |
451 | # Datatype |
452 | # |
453 | my @size = $field->size; |
454 | my $data_type = lc $field->data_type; |
455 | my %extra = $field->extra; |
456 | my $list = $extra{'list'} || []; |
457 | # todo deal with embedded quotes |
458 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
bfb5a568 |
459 | |
7b4b17aa |
460 | if ($postgres_version >= 8.003 && $field->data_type eq 'enum') { |
79f55d7e |
461 | my $type_name = $extra{'custom_type_name'} || $field->table->name . '_' . $field->name . '_type'; |
5342f5c1 |
462 | $field_def .= ' '. $type_name; |
d25db732 |
463 | my $new_type_def = "DROP TYPE IF EXISTS $type_name CASCADE;\n" . |
79f55d7e |
464 | "CREATE TYPE $type_name AS ENUM ($commalist)"; |
465 | if (! exists $type_defs->{$type_name} ) { |
466 | $type_defs->{$type_name} = $new_type_def; |
467 | } elsif ( $type_defs->{$type_name} ne $new_type_def ) { |
468 | die "Attempted to redefine type name '$type_name' as a different type.\n"; |
469 | } |
5342f5c1 |
470 | } else { |
471 | $field_def .= ' '. convert_datatype($field); |
472 | } |
bfb5a568 |
473 | |
474 | # |
ea93df61 |
475 | # Default value |
bfb5a568 |
476 | # |
06baeb21 |
477 | SQL::Translator::Producer->_apply_default_value( |
478 | $field, |
479 | \$field_def, |
480 | [ |
481 | 'NULL' => \'NULL', |
482 | 'now()' => 'now()', |
483 | 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', |
484 | ], |
485 | ); |
bfb5a568 |
486 | |
487 | # |
488 | # Not null constraint |
489 | # |
490 | $field_def .= ' NOT NULL' unless $field->is_nullable; |
491 | |
ea93df61 |
492 | # |
493 | # Geometry constraints |
494 | # |
495 | if(is_geometry($field)){ |
496 | foreach ( create_geometry_constraints($field) ) { |
497 | my ($cdefs, $fks) = create_constraint($_, |
498 | { |
499 | quote_field_names => $qf, |
500 | quote_table_names => $qt, |
501 | table_name => $table_name, |
502 | }); |
503 | push @$constraint_defs, @$cdefs; |
504 | push @$fks, @$fks; |
505 | } |
e83ad71c |
506 | } |
ea93df61 |
507 | |
bfb5a568 |
508 | return $field_def; |
509 | } |
510 | } |
511 | |
e83ad71c |
512 | sub create_geometry_constraints{ |
ea93df61 |
513 | my $field = shift; |
514 | |
515 | my @constraints; |
516 | push @constraints, SQL::Translator::Schema::Constraint->new( |
517 | name => "enforce_dims_".$field->name, |
518 | expression => "(ST_NDims($field) = ".$field->{extra}{dimensions}.")", |
519 | table => $field->table, |
520 | type => CHECK_C, |
521 | ); |
522 | |
523 | push @constraints, SQL::Translator::Schema::Constraint->new( |
524 | name => "enforce_srid_".$field->name, |
525 | expression => "(ST_SRID($field) = ".$field->{extra}{srid}.")", |
526 | table => $field->table, |
527 | type => CHECK_C, |
528 | ); |
529 | push @constraints, SQL::Translator::Schema::Constraint->new( |
530 | name => "enforce_geotype_".$field->name, |
531 | expression => "(GeometryType($field) = '".$field->{extra}{geometry_type}."'::text OR $field IS NULL)", |
532 | table => $field->table, |
533 | type => CHECK_C, |
534 | ); |
535 | |
536 | return @constraints; |
e83ad71c |
537 | } |
538 | |
892573f2 |
539 | sub create_index |
540 | { |
541 | my ($index, $options) = @_; |
bfb5a568 |
542 | |
892573f2 |
543 | my $qt = $options->{quote_table_names} ||''; |
544 | my $qf = $options->{quote_field_names} ||''; |
545 | my $table_name = $index->table->name; |
bfb5a568 |
546 | |
892573f2 |
547 | my ($index_def, @constraint_defs); |
bfb5a568 |
548 | |
681dc480 |
549 | my $name |
550 | = $index->name |
551 | || join('_', $table_name, 'idx', ++$index_name{ $table_name }); |
bfb5a568 |
552 | |
892573f2 |
553 | my $type = $index->type || NORMAL; |
5f31ed66 |
554 | my @fields = $index->fields; |
892573f2 |
555 | next unless @fields; |
bfb5a568 |
556 | |
5f31ed66 |
557 | my $def_start = qq[CONSTRAINT ${qf}$name${qf} ]; |
558 | my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ($qf . $_ . $qf ) } @fields)) . ')'; |
892573f2 |
559 | if ( $type eq PRIMARY_KEY ) { |
5f31ed66 |
560 | push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; |
892573f2 |
561 | } |
562 | elsif ( $type eq UNIQUE ) { |
5f31ed66 |
563 | push @constraint_defs, "${def_start}UNIQUE " .$field_names; |
892573f2 |
564 | } |
565 | elsif ( $type eq NORMAL ) { |
ea93df61 |
566 | $index_def = |
5f31ed66 |
567 | "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} ".$field_names |
ea93df61 |
568 | ; |
892573f2 |
569 | } |
570 | else { |
571 | warn "Unknown index type ($type) on table $table_name.\n" |
572 | if $WARN; |
124b192c |
573 | } |
bfb5a568 |
574 | |
892573f2 |
575 | return $index_def, \@constraint_defs; |
576 | } |
bfb5a568 |
577 | |
892573f2 |
578 | sub create_constraint |
579 | { |
580 | my ($c, $options) = @_; |
bfb5a568 |
581 | |
892573f2 |
582 | my $qf = $options->{quote_field_names} ||''; |
583 | my $qt = $options->{quote_table_names} ||''; |
584 | my $table_name = $c->table->name; |
585 | my (@constraint_defs, @fks); |
bfb5a568 |
586 | |
892573f2 |
587 | my $name = $c->name || ''; |
bfb5a568 |
588 | |
5f31ed66 |
589 | my @fields = grep { defined } $c->fields; |
892573f2 |
590 | |
5f31ed66 |
591 | my @rfields = grep { defined } $c->reference_fields; |
892573f2 |
592 | |
593 | next if !@fields && $c->type ne CHECK_C; |
5f31ed66 |
594 | my $def_start = $name ? qq[CONSTRAINT ${qf}$name${qf} ] : ''; |
595 | my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ($qf . $_ . $qf ) } @fields)) . ')'; |
892573f2 |
596 | if ( $c->type eq PRIMARY_KEY ) { |
5f31ed66 |
597 | push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; |
892573f2 |
598 | } |
599 | elsif ( $c->type eq UNIQUE ) { |
5f31ed66 |
600 | push @constraint_defs, "${def_start}UNIQUE " .$field_names; |
892573f2 |
601 | } |
602 | elsif ( $c->type eq CHECK_C ) { |
603 | my $expression = $c->expression; |
604 | push @constraint_defs, "${def_start}CHECK ($expression)"; |
605 | } |
606 | elsif ( $c->type eq FOREIGN_KEY ) { |
681dc480 |
607 | my $def .= "ALTER TABLE $qt$table_name$qt ADD ${def_start}FOREIGN KEY $field_names" |
608 | . "\n REFERENCES " . $qt . $c->reference_table . $qt; |
bfb5a568 |
609 | |
892573f2 |
610 | if ( @rfields ) { |
611 | $def .= ' ('.$qf . join( $qf.', '.$qf, @rfields ) . $qf.')'; |
612 | } |
bfb5a568 |
613 | |
892573f2 |
614 | if ( $c->match_type ) { |
ea93df61 |
615 | $def .= ' MATCH ' . |
892573f2 |
616 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
617 | } |
5342f5c1 |
618 | |
892573f2 |
619 | if ( $c->on_delete ) { |
5863ad87 |
620 | $def .= ' ON DELETE '. $c->on_delete; |
892573f2 |
621 | } |
bfb5a568 |
622 | |
892573f2 |
623 | if ( $c->on_update ) { |
5863ad87 |
624 | $def .= ' ON UPDATE '. $c->on_update; |
892573f2 |
625 | } |
124b192c |
626 | |
892573f2 |
627 | if ( $c->deferrable ) { |
628 | $def .= ' DEFERRABLE'; |
124b192c |
629 | } |
630 | |
892573f2 |
631 | push @fks, "$def"; |
124b192c |
632 | } |
bfb5a568 |
633 | |
892573f2 |
634 | return \@constraint_defs, \@fks; |
635 | } |
636 | |
bfb5a568 |
637 | sub convert_datatype |
638 | { |
639 | my ($field) = @_; |
640 | |
641 | my @size = $field->size; |
642 | my $data_type = lc $field->data_type; |
aacb3187 |
643 | my $array = $data_type =~ s/\[\]$//; |
bfb5a568 |
644 | |
645 | if ( $data_type eq 'enum' ) { |
646 | # my $len = 0; |
647 | # $len = ($len < length($_)) ? length($_) : $len for (@$list); |
648 | # my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); |
ea93df61 |
649 | # push @$constraint_defs, |
3406fd5b |
650 | # qq[CONSTRAINT "$chk_name" CHECK ($qf$field_name$qf ]. |
bfb5a568 |
651 | # qq[IN ($commalist))]; |
652 | $data_type = 'character varying'; |
653 | } |
654 | elsif ( $data_type eq 'set' ) { |
655 | $data_type = 'character varying'; |
656 | } |
657 | elsif ( $field->is_auto_increment ) { |
658 | if ( defined $size[0] && $size[0] > 11 ) { |
659 | $data_type = 'bigserial'; |
660 | } |
661 | else { |
662 | $data_type = 'serial'; |
663 | } |
664 | undef @size; |
665 | } |
666 | else { |
667 | $data_type = defined $translate{ $data_type } ? |
668 | $translate{ $data_type } : |
669 | $data_type; |
670 | } |
671 | |
ad258776 |
672 | if ( $data_type =~ /^time/i || $data_type =~ /^interval/i ) { |
bfb5a568 |
673 | if ( defined $size[0] && $size[0] > 6 ) { |
674 | $size[0] = 6; |
675 | } |
676 | } |
677 | |
678 | if ( $data_type eq 'integer' ) { |
679 | if ( defined $size[0] && $size[0] > 0) { |
680 | if ( $size[0] > 10 ) { |
681 | $data_type = 'bigint'; |
682 | } |
683 | elsif ( $size[0] < 5 ) { |
684 | $data_type = 'smallint'; |
685 | } |
686 | else { |
687 | $data_type = 'integer'; |
688 | } |
689 | } |
690 | else { |
691 | $data_type = 'integer'; |
692 | } |
693 | } |
52bc2e13 |
694 | |
695 | my $type_with_size = join('|', |
e189562c |
696 | 'bit', 'varbit', 'character', 'bit varying', 'character varying', |
c3bddac9 |
697 | 'time', 'timestamp', 'interval', 'numeric' |
52bc2e13 |
698 | ); |
699 | |
700 | if ( $data_type !~ /$type_with_size/ ) { |
ea93df61 |
701 | @size = (); |
e56dabb7 |
702 | } |
bfb5a568 |
703 | |
ad258776 |
704 | if (defined $size[0] && $size[0] > 0 && $data_type =~ /^time/i ) { |
705 | $data_type =~ s/^(time.*?)( with.*)?$/$1($size[0])/; |
706 | $data_type .= $2 if(defined $2); |
707 | } elsif ( defined $size[0] && $size[0] > 0 ) { |
e189562c |
708 | $data_type .= '(' . join( ',', @size ) . ')'; |
08d91aad |
709 | } |
aacb3187 |
710 | if($array) |
711 | { |
712 | $data_type .= '[]'; |
713 | } |
bfb5a568 |
714 | |
140a1dad |
715 | # |
716 | # Geography |
717 | # |
718 | if($data_type eq 'geography'){ |
719 | $data_type .= '('.$field->{extra}{geography_type}.','. $field->{extra}{srid} .')' |
720 | } |
721 | |
bfb5a568 |
722 | return $data_type; |
723 | } |
724 | |
725 | |
726 | sub alter_field |
727 | { |
728 | my ($from_field, $to_field) = @_; |
729 | |
ea93df61 |
730 | die "Can't alter field in another table" |
bfb5a568 |
731 | if($from_field->table->name ne $to_field->table->name); |
732 | |
733 | my @out; |
ea93df61 |
734 | |
e83ad71c |
735 | # drop geometry column and constraints |
c50d1a0a |
736 | push @out, drop_geometry_column($from_field) if is_geometry($from_field); |
737 | push @out, drop_geometry_constraints($from_field) if is_geometry($from_field); |
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', |
745 | $to_field->table->name, |
746 | $from_field->name, |
747 | $to_field->name) if($from_field->name ne $to_field->name); |
748 | |
3406fd5b |
749 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', |
bfb5a568 |
750 | $to_field->table->name, |
751 | $to_field->name) if(!$to_field->is_nullable and |
752 | $from_field->is_nullable); |
753 | |
90726ffd |
754 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP NOT NULL', |
755 | $to_field->table->name, |
756 | $to_field->name) |
757 | if ( !$from_field->is_nullable and $to_field->is_nullable ); |
758 | |
759 | |
bfb5a568 |
760 | my $from_dt = convert_datatype($from_field); |
761 | my $to_dt = convert_datatype($to_field); |
3406fd5b |
762 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', |
bfb5a568 |
763 | $to_field->table->name, |
764 | $to_field->name, |
765 | $to_dt) if($to_dt ne $from_dt); |
766 | |
3406fd5b |
767 | my $old_default = $from_field->default_value; |
768 | my $new_default = $to_field->default_value; |
90726ffd |
769 | my $default_value = $to_field->default_value; |
ea93df61 |
770 | |
90726ffd |
771 | # fixes bug where output like this was created: |
772 | # ALTER TABLE users ALTER COLUMN column SET DEFAULT ThisIsUnescaped; |
773 | if(ref $default_value eq "SCALAR" ) { |
774 | $default_value = $$default_value; |
775 | } elsif( defined $default_value && $to_dt =~ /^(character|text)/xsmi ) { |
776 | $default_value =~ s/'/''/xsmg; |
777 | $default_value = q(') . $default_value . q('); |
778 | } |
ea93df61 |
779 | |
3406fd5b |
780 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', |
bfb5a568 |
781 | $to_field->table->name, |
782 | $to_field->name, |
90726ffd |
783 | $default_value) |
3406fd5b |
784 | if ( defined $new_default && |
785 | (!defined $old_default || $old_default ne $new_default) ); |
bfb5a568 |
786 | |
ea93df61 |
787 | # fixes bug where removing the DEFAULT statement of a column |
788 | # would result in no change |
789 | |
790 | push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP DEFAULT', |
90726ffd |
791 | $to_field->table->name, |
792 | $to_field->name) |
793 | if ( !defined $new_default && defined $old_default ); |
ea93df61 |
794 | |
795 | # add geometry column and contraints |
796 | push @out, add_geometry_column($to_field) if is_geometry($to_field); |
797 | push @out, add_geometry_constraints($to_field) if is_geometry($to_field); |
798 | |
c50d1a0a |
799 | return wantarray ? @out : join(";\n", @out); |
bfb5a568 |
800 | } |
801 | |
3406fd5b |
802 | sub rename_field { alter_field(@_) } |
803 | |
bfb5a568 |
804 | sub add_field |
805 | { |
806 | my ($new_field) = @_; |
807 | |
3406fd5b |
808 | my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', |
bfb5a568 |
809 | $new_field->table->name, |
810 | create_field($new_field)); |
e83ad71c |
811 | $out .= "\n".add_geometry_column($new_field) if is_geometry($new_field); |
812 | $out .= "\n".add_geometry_constraints($new_field) if is_geometry($new_field); |
bfb5a568 |
813 | return $out; |
814 | |
815 | } |
816 | |
817 | sub drop_field |
818 | { |
c50d1a0a |
819 | my ($old_field, $options) = @_; |
820 | |
821 | my $qt = $options->{quote_table_names} ||''; |
822 | my $qf = $options->{quote_field_names} ||''; |
bfb5a568 |
823 | |
3406fd5b |
824 | my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', |
c50d1a0a |
825 | $qt . $old_field->table->name . $qt, |
826 | $qf . $old_field->name . $qf); |
827 | $out .= "\n".drop_geometry_column($old_field) if is_geometry($old_field); |
ea93df61 |
828 | return $out; |
bfb5a568 |
829 | } |
830 | |
e83ad71c |
831 | sub add_geometry_column{ |
ea93df61 |
832 | my ($field,$options) = @_; |
833 | |
834 | my $out = sprintf("INSERT INTO geometry_columns VALUES ('%s','%s','%s','%s','%s','%s','%s')", |
835 | '', |
836 | $field->table->schema->name, |
837 | $options->{table} ? $options->{table} : $field->table->name, |
838 | $field->name, |
839 | $field->{extra}{dimensions}, |
840 | $field->{extra}{srid}, |
841 | $field->{extra}{geometry_type}); |
e83ad71c |
842 | return $out; |
843 | } |
844 | |
845 | sub drop_geometry_column |
846 | { |
ea93df61 |
847 | my $field = shift; |
848 | |
849 | my $out = sprintf("DELETE FROM geometry_columns WHERE f_table_schema = '%s' AND f_table_name = '%s' AND f_geometry_column = '%s'", |
850 | $field->table->schema->name, |
851 | $field->table->name, |
852 | $field->name); |
e83ad71c |
853 | return $out; |
854 | } |
855 | |
856 | sub add_geometry_constraints{ |
ea93df61 |
857 | my $field = shift; |
858 | |
859 | my @constraints = create_geometry_constraints($field); |
860 | |
861 | my $out = join("\n", map { alter_create_constraint($_); } @constraints); |
e83ad71c |
862 | |
ea93df61 |
863 | return $out; |
e83ad71c |
864 | } |
865 | |
866 | sub drop_geometry_constraints{ |
ea93df61 |
867 | my $field = shift; |
868 | |
869 | my @constraints = create_geometry_constraints($field); |
870 | |
871 | my $out = join("\n", map { alter_drop_constraint($_); } @constraints); |
872 | |
873 | return $out; |
e83ad71c |
874 | } |
875 | |
3406fd5b |
876 | sub alter_table { |
877 | my ($to_table, $options) = @_; |
878 | my $qt = $options->{quote_table_names} || ''; |
879 | my $out = sprintf('ALTER TABLE %s %s', |
880 | $qt . $to_table->name . $qt, |
881 | $options->{alter_table_action}); |
e83ad71c |
882 | $out .= "\n".$options->{geometry_changes} if $options->{geometry_changes}; |
3406fd5b |
883 | return $out; |
884 | } |
885 | |
886 | sub rename_table { |
887 | my ($old_table, $new_table, $options) = @_; |
888 | my $qt = $options->{quote_table_names} || ''; |
889 | $options->{alter_table_action} = "RENAME TO $qt$new_table$qt"; |
e83ad71c |
890 | |
ea93df61 |
891 | my @geometry_changes; |
892 | push @geometry_changes, map { drop_geometry_column($_); } grep { is_geometry($_) } $old_table->get_fields; |
893 | push @geometry_changes, map { add_geometry_column($_, { table => $new_table }); } grep { is_geometry($_) } $old_table->get_fields; |
894 | |
e83ad71c |
895 | $options->{geometry_changes} = join ("\n",@geometry_changes) if scalar(@geometry_changes); |
ea93df61 |
896 | |
3406fd5b |
897 | return alter_table($old_table, $options); |
898 | } |
899 | |
900 | sub alter_create_index { |
901 | my ($index, $options) = @_; |
902 | my $qt = $options->{quote_table_names} || ''; |
903 | my $qf = $options->{quote_field_names} || ''; |
904 | my ($idef, $constraints) = create_index($index, { |
905 | quote_field_names => $qf, |
906 | quote_table_names => $qt, |
907 | table_name => $index->table->name, |
908 | }); |
909 | return $index->type eq NORMAL ? $idef |
910 | : sprintf('ALTER TABLE %s ADD %s', |
911 | $qt . $index->table->name . $qt, |
912 | join(q{}, @$constraints) |
913 | ); |
914 | } |
915 | |
916 | sub alter_drop_index { |
917 | my ($index, $options) = @_; |
918 | my $index_name = $index->name; |
919 | return "DROP INDEX $index_name"; |
920 | } |
921 | |
922 | sub alter_drop_constraint { |
923 | my ($c, $options) = @_; |
924 | my $qt = $options->{quote_table_names} || ''; |
925 | my $qc = $options->{quote_field_names} || ''; |
c50d1a0a |
926 | |
927 | return sprintf( |
928 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
929 | $qt . $c->table->name . $qt, |
930 | # attention: Postgres has a very special naming structure |
931 | # for naming foreign keys, it names them uses the name of |
932 | # the table as prefix and fkey as suffix, concatenated by a underscore |
933 | $c->type eq FOREIGN_KEY |
681dc480 |
934 | ? $c->name |
935 | ? $qc . $c->name . $qc |
936 | : $qc . $c->table->name . '_' . ($c->fields)[0] . '_fkey' . $qc |
c50d1a0a |
937 | : $qc . $c->name . $qc |
938 | ); |
3406fd5b |
939 | } |
940 | |
941 | sub alter_create_constraint { |
942 | my ($index, $options) = @_; |
943 | my $qt = $options->{quote_table_names} || ''; |
90726ffd |
944 | my ($defs, $fks) = create_constraint(@_); |
ea93df61 |
945 | |
90726ffd |
946 | # return if there are no constraint definitions so we don't run |
947 | # into output like this: |
948 | # ALTER TABLE users ADD ; |
ea93df61 |
949 | |
90726ffd |
950 | return unless(@{$defs} || @{$fks}); |
951 | return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks}) |
3406fd5b |
952 | : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt, |
90726ffd |
953 | 'ADD', join(q{}, @{$defs}, @{$fks}) |
3406fd5b |
954 | ); |
955 | } |
956 | |
957 | sub drop_table { |
958 | my ($table, $options) = @_; |
959 | my $qt = $options->{quote_table_names} || ''; |
e83ad71c |
960 | my $out = "DROP TABLE $qt$table$qt CASCADE"; |
ea93df61 |
961 | |
e83ad71c |
962 | my @geometry_drops = map { drop_geometry_column($_); } grep { is_geometry($_) } $table->get_fields; |
963 | |
964 | $out .= "\n".join("\n",@geometry_drops) if scalar(@geometry_drops); |
965 | return $out; |
3406fd5b |
966 | } |
967 | |
f8f0253c |
968 | 1; |
f8f0253c |
969 | |
96844cae |
970 | # ------------------------------------------------------------------- |
971 | # Life is full of misery, loneliness, and suffering -- |
972 | # and it's all over much too soon. |
973 | # Woody Allen |
974 | # ------------------------------------------------------------------- |
f8f0253c |
975 | |
96844cae |
976 | =pod |
f8f0253c |
977 | |
20770e44 |
978 | =head1 SEE ALSO |
979 | |
980 | SQL::Translator, SQL::Translator::Producer::Oracle. |
981 | |
f8f0253c |
982 | =head1 AUTHOR |
983 | |
f997b9ab |
984 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>. |
f8f0253c |
985 | |
986 | =cut |