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1 | package SQL::Translator::Parser::MySQL; |
2 | |
49e1eb70 |
3 | # ------------------------------------------------------------------- |
73212389 |
4 | # $Id: MySQL.pm,v 1.56 2007-02-19 20:15:13 duality72 Exp $ |
49e1eb70 |
5 | # ------------------------------------------------------------------- |
90075866 |
6 | # Copyright (C) 2002-4 SQLFairy Authors |
077ebf34 |
7 | # |
8 | # This program is free software; you can redistribute it and/or |
9 | # modify it under the terms of the GNU General Public License as |
10 | # published by the Free Software Foundation; version 2. |
11 | # |
12 | # This program is distributed in the hope that it will be useful, but |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | # General Public License for more details. |
16 | # |
17 | # You should have received a copy of the GNU General Public License |
18 | # along with this program; if not, write to the Free Software |
19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
20 | # 02111-1307 USA |
21 | # ------------------------------------------------------------------- |
16dc9970 |
22 | |
d529894e |
23 | =head1 NAME |
24 | |
25 | SQL::Translator::Parser::MySQL - parser for MySQL |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | use SQL::Translator; |
30 | use SQL::Translator::Parser::MySQL; |
31 | |
32 | my $translator = SQL::Translator->new; |
33 | $translator->parser("SQL::Translator::Parser::MySQL"); |
34 | |
35 | =head1 DESCRIPTION |
36 | |
37 | The grammar is influenced heavily by Tim Bunce's "mysql2ora" grammar. |
38 | |
629b76f9 |
39 | Here's the word from the MySQL site |
40 | (http://www.mysql.com/doc/en/CREATE_TABLE.html): |
41 | |
42 | CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] |
43 | [table_options] [select_statement] |
44 | |
45 | or |
46 | |
47 | CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name LIKE old_table_name; |
48 | |
49 | create_definition: |
50 | col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT] |
51 | [PRIMARY KEY] [reference_definition] |
52 | or PRIMARY KEY (index_col_name,...) |
53 | or KEY [index_name] (index_col_name,...) |
54 | or INDEX [index_name] (index_col_name,...) |
55 | or UNIQUE [INDEX] [index_name] (index_col_name,...) |
56 | or FULLTEXT [INDEX] [index_name] (index_col_name,...) |
57 | or [CONSTRAINT symbol] FOREIGN KEY [index_name] (index_col_name,...) |
58 | [reference_definition] |
59 | or CHECK (expr) |
60 | |
61 | type: |
62 | TINYINT[(length)] [UNSIGNED] [ZEROFILL] |
63 | or SMALLINT[(length)] [UNSIGNED] [ZEROFILL] |
64 | or MEDIUMINT[(length)] [UNSIGNED] [ZEROFILL] |
65 | or INT[(length)] [UNSIGNED] [ZEROFILL] |
66 | or INTEGER[(length)] [UNSIGNED] [ZEROFILL] |
67 | or BIGINT[(length)] [UNSIGNED] [ZEROFILL] |
68 | or REAL[(length,decimals)] [UNSIGNED] [ZEROFILL] |
69 | or DOUBLE[(length,decimals)] [UNSIGNED] [ZEROFILL] |
70 | or FLOAT[(length,decimals)] [UNSIGNED] [ZEROFILL] |
71 | or DECIMAL(length,decimals) [UNSIGNED] [ZEROFILL] |
72 | or NUMERIC(length,decimals) [UNSIGNED] [ZEROFILL] |
73 | or CHAR(length) [BINARY] |
74 | or VARCHAR(length) [BINARY] |
75 | or DATE |
76 | or TIME |
77 | or TIMESTAMP |
78 | or DATETIME |
79 | or TINYBLOB |
80 | or BLOB |
81 | or MEDIUMBLOB |
82 | or LONGBLOB |
83 | or TINYTEXT |
84 | or TEXT |
85 | or MEDIUMTEXT |
86 | or LONGTEXT |
87 | or ENUM(value1,value2,value3,...) |
88 | or SET(value1,value2,value3,...) |
89 | |
90 | index_col_name: |
91 | col_name [(length)] |
92 | |
93 | reference_definition: |
94 | REFERENCES tbl_name [(index_col_name,...)] |
95 | [MATCH FULL | MATCH PARTIAL] |
96 | [ON DELETE reference_option] |
97 | [ON UPDATE reference_option] |
98 | |
99 | reference_option: |
100 | RESTRICT | CASCADE | SET NULL | NO ACTION | SET DEFAULT |
101 | |
102 | table_options: |
103 | TYPE = {BDB | HEAP | ISAM | InnoDB | MERGE | MRG_MYISAM | MYISAM } |
104 | or AUTO_INCREMENT = # |
105 | or AVG_ROW_LENGTH = # |
106 | or CHECKSUM = {0 | 1} |
107 | or COMMENT = "string" |
108 | or MAX_ROWS = # |
109 | or MIN_ROWS = # |
110 | or PACK_KEYS = {0 | 1 | DEFAULT} |
111 | or PASSWORD = "string" |
112 | or DELAY_KEY_WRITE = {0 | 1} |
113 | or ROW_FORMAT= { default | dynamic | fixed | compressed } |
114 | or RAID_TYPE= {1 | STRIPED | RAID0 } RAID_CHUNKS=# RAID_CHUNKSIZE=# |
115 | or UNION = (table_name,[table_name...]) |
116 | or INSERT_METHOD= {NO | FIRST | LAST } |
117 | or DATA DIRECTORY="absolute path to directory" |
118 | or INDEX DIRECTORY="absolute path to directory" |
119 | |
13aec984 |
120 | A subset of the ALTER TABLE syntax that allows addition of foreign keys: |
121 | |
122 | ALTER [IGNORE] TABLE tbl_name alter_specification [, alter_specification] ... |
123 | |
124 | alter_specification: |
125 | ADD [CONSTRAINT [symbol]] |
126 | FOREIGN KEY [index_name] (index_col_name,...) |
127 | [reference_definition] |
128 | |
129 | A subset of INSERT that we ignore: |
130 | |
131 | INSERT anything |
132 | |
d529894e |
133 | =cut |
134 | |
16dc9970 |
135 | use strict; |
d529894e |
136 | use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; |
73212389 |
137 | $VERSION = sprintf "%d.%02d", q$Revision: 1.56 $ =~ /(\d+)\.(\d+)/; |
8d0f3086 |
138 | $DEBUG = 0 unless defined $DEBUG; |
077ebf34 |
139 | |
d529894e |
140 | use Data::Dumper; |
077ebf34 |
141 | use Parse::RecDescent; |
142 | use Exporter; |
143 | use base qw(Exporter); |
144 | |
145 | @EXPORT_OK = qw(parse); |
146 | |
d529894e |
147 | # Enable warnings within the Parse::RecDescent module. |
148 | $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error |
149 | $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c. |
150 | $::RD_HINT = 1; # Give out hints to help fix problems. |
151 | |
9bf756df |
152 | $GRAMMAR = << 'END_OF_GRAMMAR'; |
d529894e |
153 | |
8ccdeb42 |
154 | { |
13aec984 |
155 | my ( $database_name, %tables, $table_order, @table_comments ); |
86318717 |
156 | my $delimiter = ';'; |
8ccdeb42 |
157 | } |
d529894e |
158 | |
629b76f9 |
159 | # |
160 | # The "eofile" rule makes the parser fail if any "statement" rule |
161 | # fails. Otherwise, the first successful match by a "statement" |
162 | # won't cause the failure needed to know that the parse, as a whole, |
163 | # failed. -ky |
164 | # |
13aec984 |
165 | startrule : statement(s) eofile { |
166 | { tables => \%tables, database_name => $database_name } |
167 | } |
629b76f9 |
168 | |
169 | eofile : /^\Z/ |
d529894e |
170 | |
171 | statement : comment |
dcb4fa06 |
172 | | use |
33d0d6d4 |
173 | | set |
61745327 |
174 | | drop |
d529894e |
175 | | create |
13aec984 |
176 | | alter |
177 | | insert |
86318717 |
178 | | delimiter |
179 | | empty_statement |
d529894e |
180 | | <error> |
181 | |
86318717 |
182 | use : /use/i WORD "$delimiter" |
13aec984 |
183 | { |
184 | $database_name = $item[2]; |
185 | @table_comments = (); |
186 | } |
dcb4fa06 |
187 | |
86318717 |
188 | set : /set/i /[^;]+/ "$delimiter" |
c5dabd71 |
189 | { @table_comments = () } |
734dfc91 |
190 | |
86318717 |
191 | drop : /drop/i TABLE /[^;]+/ "$delimiter" |
33d0d6d4 |
192 | |
86318717 |
193 | drop : /drop/i WORD(s) "$delimiter" |
c5dabd71 |
194 | { @table_comments = () } |
61745327 |
195 | |
9bf756df |
196 | string : |
197 | # MySQL strings, unlike common SQL strings, can be double-quoted or |
198 | # single-quoted, and you can escape the delmiters by doubling (but only the |
199 | # delimiter) or by backslashing. |
200 | |
201 | /'(\\.|''|[^\\\'])*'/ | |
202 | /"(\\.|""|[^\\\"])*"/ |
203 | # For reference, std sql str: /(?:(?:\')(?:[^\']*(?:(?:\'\')[^\']*)*)(?:\'))// |
204 | |
205 | nonstring : /[^;\'"]+/ |
206 | |
207 | statement_body : (string | nonstring)(s?) |
208 | |
86318717 |
209 | insert : /insert/i statement_body "$delimiter" |
13aec984 |
210 | |
86318717 |
211 | delimiter : /delimiter/i /[\S]+/ |
212 | { $delimiter = $item[2] } |
213 | |
214 | empty_statement : "$delimiter" |
215 | |
216 | alter : ALTER TABLE table_name alter_specification(s /,/) "$delimiter" |
13aec984 |
217 | { |
218 | my $table_name = $item{'table_name'}; |
219 | die "Cannot ALTER table '$table_name'; it does not exist" |
220 | unless $tables{ $table_name }; |
221 | for my $definition ( @{ $item[4] } ) { |
222 | $definition->{'extra'}->{'alter'} = 1; |
223 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
224 | } |
225 | } |
226 | |
227 | alter_specification : ADD foreign_key_def |
228 | { $return = $item[2] } |
229 | |
86318717 |
230 | create : CREATE /database/i WORD "$delimiter" |
c5dabd71 |
231 | { @table_comments = () } |
dcb4fa06 |
232 | |
86318717 |
233 | create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) /(,\s*)?\)/ table_option(s?) "$delimiter" |
d529894e |
234 | { |
235 | my $table_name = $item{'table_name'}; |
236 | $tables{ $table_name }{'order'} = ++$table_order; |
237 | $tables{ $table_name }{'table_name'} = $table_name; |
238 | |
734dfc91 |
239 | if ( @table_comments ) { |
240 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
241 | @table_comments = (); |
242 | } |
243 | |
61745327 |
244 | my $i = 1; |
40c1ade1 |
245 | for my $definition ( @{ $item[7] } ) { |
f2cf1734 |
246 | if ( $definition->{'supertype'} eq 'field' ) { |
d529894e |
247 | my $field_name = $definition->{'name'}; |
248 | $tables{ $table_name }{'fields'}{ $field_name } = |
249 | { %$definition, order => $i }; |
250 | $i++; |
251 | |
252 | if ( $definition->{'is_primary_key'} ) { |
f2cf1734 |
253 | push @{ $tables{ $table_name }{'constraints'} }, |
d529894e |
254 | { |
255 | type => 'primary_key', |
256 | fields => [ $field_name ], |
16dc9970 |
257 | } |
d529894e |
258 | ; |
259 | } |
dd2ef5ae |
260 | } |
f2cf1734 |
261 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
f2cf1734 |
262 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
40c1ade1 |
263 | } |
f2cf1734 |
264 | elsif ( $definition->{'supertype'} eq 'index' ) { |
734dfc91 |
265 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
dd2ef5ae |
266 | } |
d529894e |
267 | } |
dd2ef5ae |
268 | |
02a21f1a |
269 | if ( my @options = @{ $item{'table_option(s?)'} } ) { |
35843e6b |
270 | for my $option ( @options ) { |
271 | my ( $key, $value ) = each %$option; |
272 | if ( $key eq 'comment' ) { |
273 | push @{ $tables{ $table_name }{'comments'} }, $value; |
274 | } |
275 | else { |
276 | push @{ $tables{ $table_name }{'table_options'} }, $option; |
277 | } |
278 | } |
d529894e |
279 | } |
58a88238 |
280 | |
281 | 1; |
d529894e |
282 | } |
dd2ef5ae |
283 | |
40c1ade1 |
284 | opt_if_not_exists : /if not exists/i |
285 | |
86318717 |
286 | create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' "$delimiter" |
d529894e |
287 | { |
734dfc91 |
288 | @table_comments = (); |
d529894e |
289 | push @{ $tables{ $item{'table_name'} }{'indices'} }, |
290 | { |
291 | name => $item[4], |
292 | type => $item[2] ? 'unique' : 'normal', |
293 | fields => $item[8], |
dd2ef5ae |
294 | } |
d529894e |
295 | ; |
296 | } |
dd2ef5ae |
297 | |
f2cf1734 |
298 | create_definition : constraint |
299 | | index |
d529894e |
300 | | field |
02a21f1a |
301 | | comment |
d529894e |
302 | | <error> |
303 | |
734dfc91 |
304 | comment : /^\s*(?:#|-{2}).*\n/ |
305 | { |
306 | my $comment = $item[1]; |
a82fa2cb |
307 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
308 | $comment =~ s/\s*$//; |
309 | $return = $comment; |
734dfc91 |
310 | } |
311 | |
73212389 |
312 | comment : /\/\*/ /.*?\*\// |
e78d62f2 |
313 | { |
314 | my $comment = $item[2]; |
73212389 |
315 | $comment = substr($comment, 0, -2); |
e78d62f2 |
316 | $comment =~ s/^\s*|\s*$//g; |
317 | $return = $comment; |
318 | } |
86318717 |
319 | |
734dfc91 |
320 | field_comment : /^\s*(?:#|-{2}).*\n/ |
321 | { |
322 | my $comment = $item[1]; |
a82fa2cb |
323 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
324 | $comment =~ s/\s*$//; |
325 | $return = $comment; |
326 | } |
d529894e |
327 | |
35843e6b |
328 | |
329 | field_comment2 : /comment/i /'.*?'/ |
330 | { |
331 | my $comment = $item[2]; |
332 | $comment =~ s/^'//; |
333 | $comment =~ s/'$//; |
334 | $return = $comment; |
335 | } |
336 | |
d529894e |
337 | blank : /\s*/ |
338 | |
100684f3 |
339 | field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?) |
d529894e |
340 | { |
734dfc91 |
341 | my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] }; |
d529894e |
342 | if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) { |
343 | $qualifiers{ $_ } = 1 for @type_quals; |
344 | } |
345 | |
c5dabd71 |
346 | my $null = defined $qualifiers{'not_null'} |
347 | ? $qualifiers{'not_null'} : 1; |
348 | delete $qualifiers{'not_null'}; |
349 | |
35843e6b |
350 | my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } ); |
88b89793 |
351 | |
d529894e |
352 | $return = { |
f2cf1734 |
353 | supertype => 'field', |
354 | name => $item{'field_name'}, |
355 | data_type => $item{'data_type'}{'type'}, |
356 | size => $item{'data_type'}{'size'}, |
357 | list => $item{'data_type'}{'list'}, |
358 | null => $null, |
359 | constraints => $item{'reference_definition(?)'}, |
88b89793 |
360 | comments => [ @comments ], |
d529894e |
361 | %qualifiers, |
362 | } |
363 | } |
364 | | <error> |
dd2ef5ae |
365 | |
d529894e |
366 | field_qualifier : not_null |
367 | { |
368 | $return = { |
369 | null => $item{'not_null'}, |
370 | } |
371 | } |
16dc9970 |
372 | |
d529894e |
373 | field_qualifier : default_val |
374 | { |
375 | $return = { |
376 | default => $item{'default_val'}, |
377 | } |
378 | } |
16dc9970 |
379 | |
d529894e |
380 | field_qualifier : auto_inc |
381 | { |
382 | $return = { |
383 | is_auto_inc => $item{'auto_inc'}, |
384 | } |
385 | } |
16dc9970 |
386 | |
d529894e |
387 | field_qualifier : primary_key |
388 | { |
389 | $return = { |
390 | is_primary_key => $item{'primary_key'}, |
391 | } |
392 | } |
16dc9970 |
393 | |
d529894e |
394 | field_qualifier : unsigned |
395 | { |
396 | $return = { |
397 | is_unsigned => $item{'unsigned'}, |
398 | } |
399 | } |
16dc9970 |
400 | |
19c5bc53 |
401 | field_qualifier : /character set/i WORD |
095b4549 |
402 | { |
403 | $return = { |
bd30a9a2 |
404 | 'CHARACTER SET' => $item[2], |
405 | } |
406 | } |
407 | |
408 | field_qualifier : /collate/i WORD |
409 | { |
410 | $return = { |
411 | COLLATE => $item[2], |
412 | } |
413 | } |
414 | |
415 | field_qualifier : /on update/i CURRENT_TIMESTAMP |
416 | { |
417 | $return = { |
418 | 'ON UPDATE' => $item[2], |
095b4549 |
419 | } |
420 | } |
421 | |
bd356af8 |
422 | field_qualifier : /unique/i KEY(?) |
423 | { |
424 | $return = { |
425 | is_unique => 1, |
426 | } |
427 | } |
428 | |
429 | field_qualifier : KEY |
430 | { |
431 | $return = { |
432 | has_index => 1, |
433 | } |
434 | } |
435 | |
100684f3 |
436 | reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?) |
658637cd |
437 | { |
40c1ade1 |
438 | $return = { |
658637cd |
439 | type => 'foreign_key', |
440 | reference_table => $item[2], |
441 | reference_fields => $item[3][0], |
442 | match_type => $item[4][0], |
100684f3 |
443 | on_delete => $item[5][0], |
444 | on_update => $item[6][0], |
658637cd |
445 | } |
446 | } |
447 | |
02a21f1a |
448 | match_type : /match full/i { 'full' } |
658637cd |
449 | | |
02a21f1a |
450 | /match partial/i { 'partial' } |
658637cd |
451 | |
100684f3 |
452 | on_delete : /on delete/i reference_option |
658637cd |
453 | { $item[2] } |
454 | |
100684f3 |
455 | on_update : |
6fa97af6 |
456 | /on update/i 'CURRENT_TIMESTAMP' |
457 | { $item[2] } |
458 | | |
459 | /on update/i reference_option |
658637cd |
460 | { $item[2] } |
461 | |
462 | reference_option: /restrict/i | |
463 | /cascade/i | |
464 | /set null/i | |
465 | /no action/i | |
466 | /set default/i |
467 | { $item[1] } |
468 | |
f2cf1734 |
469 | index : normal_index |
371f5f88 |
470 | | fulltext_index |
58a88238 |
471 | | <error> |
d529894e |
472 | |
0d41bc9b |
473 | table_name : NAME |
d529894e |
474 | |
0d41bc9b |
475 | field_name : NAME |
d529894e |
476 | |
02a21f1a |
477 | index_name : NAME |
d529894e |
478 | |
479 | data_type : WORD parens_value_list(s?) type_qualifier(s?) |
480 | { |
481 | my $type = $item[1]; |
482 | my $size; # field size, applicable only to non-set fields |
483 | my $list; # set list, applicable only to sets (duh) |
484 | |
44fcd0b5 |
485 | if ( uc($type) =~ /^(SET|ENUM)$/ ) { |
d529894e |
486 | $size = undef; |
487 | $list = $item[2][0]; |
488 | } |
489 | else { |
490 | $size = $item[2][0]; |
491 | $list = []; |
492 | } |
493 | |
6333c482 |
494 | unless ( @{ $size || [] } ) { |
495 | if ( lc $type eq 'tinyint' ) { |
7898fb70 |
496 | $size = 4; |
6333c482 |
497 | } |
498 | elsif ( lc $type eq 'smallint' ) { |
7898fb70 |
499 | $size = 6; |
6333c482 |
500 | } |
501 | elsif ( lc $type eq 'mediumint' ) { |
7898fb70 |
502 | $size = 9; |
6333c482 |
503 | } |
e78d62f2 |
504 | elsif ( $type =~ /^int(eger)?$/i ) { |
f2cf1734 |
505 | $type = 'int'; |
7898fb70 |
506 | $size = 11; |
6333c482 |
507 | } |
508 | elsif ( lc $type eq 'bigint' ) { |
7898fb70 |
509 | $size = 20; |
6333c482 |
510 | } |
1eb08c80 |
511 | elsif ( |
512 | lc $type =~ /(float|double|decimal|numeric|real|fixed|dec)/ |
513 | ) { |
6333c482 |
514 | $size = [8,2]; |
515 | } |
516 | } |
517 | |
7898fb70 |
518 | if ( $type =~ /^tiny(text|blob)$/i ) { |
519 | $size = 255; |
256d534a |
520 | } |
7898fb70 |
521 | elsif ( $type =~ /^(blob|text)$/i ) { |
522 | $size = 65_535; |
256d534a |
523 | } |
7898fb70 |
524 | elsif ( $type =~ /^medium(blob|text)$/i ) { |
525 | $size = 16_777_215; |
256d534a |
526 | } |
7898fb70 |
527 | elsif ( $type =~ /^long(blob|text)$/i ) { |
528 | $size = 4_294_967_295; |
256d534a |
529 | } |
530 | |
d529894e |
531 | $return = { |
532 | type => $type, |
533 | size => $size, |
534 | list => $list, |
535 | qualifiers => $item[3], |
536 | } |
537 | } |
16dc9970 |
538 | |
658637cd |
539 | parens_field_list : '(' field_name(s /,/) ')' |
540 | { $item[2] } |
541 | |
d529894e |
542 | parens_value_list : '(' VALUE(s /,/) ')' |
543 | { $item[2] } |
16dc9970 |
544 | |
d529894e |
545 | type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i |
546 | { lc $item[1] } |
16dc9970 |
547 | |
d529894e |
548 | field_type : WORD |
16dc9970 |
549 | |
d529894e |
550 | create_index : /create/i /index/i |
dd2ef5ae |
551 | |
e78d62f2 |
552 | not_null : /not/i /null/i |
553 | { $return = 0 } |
554 | | |
555 | /null/i |
556 | { $return = 1 } |
16dc9970 |
557 | |
d529894e |
558 | unsigned : /unsigned/i { $return = 0 } |
16dc9970 |
559 | |
09fa21a6 |
560 | #default_val : /default/i /(?:')?[\s\w\d:.-]*(?:')?/ |
561 | # { |
562 | # $item[2] =~ s/'//g; |
563 | # $return = $item[2]; |
564 | # } |
565 | |
6fa97af6 |
566 | default_val : |
567 | /default/i 'CURRENT_TIMESTAMP' |
568 | { |
569 | $return = $item[2]; |
570 | } |
571 | | |
572 | /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/ |
09fa21a6 |
573 | { |
574 | $item[2] =~ s/^\s*'|'\s*$//g; |
d529894e |
575 | $return = $item[2]; |
576 | } |
16dc9970 |
577 | |
d529894e |
578 | auto_inc : /auto_increment/i { 1 } |
16dc9970 |
579 | |
d529894e |
580 | primary_key : /primary/i /key/i { 1 } |
16dc9970 |
581 | |
f2cf1734 |
582 | constraint : primary_key_def |
583 | | unique_key_def |
584 | | foreign_key_def |
585 | | <error> |
586 | |
02a21f1a |
587 | foreign_key_def : foreign_key_def_begin parens_field_list reference_definition |
40c1ade1 |
588 | { |
589 | $return = { |
f2cf1734 |
590 | supertype => 'constraint', |
40c1ade1 |
591 | type => 'foreign_key', |
02a21f1a |
592 | name => $item[1], |
09fa21a6 |
593 | fields => $item[2], |
40c1ade1 |
594 | %{ $item{'reference_definition'} }, |
595 | } |
596 | } |
597 | |
e78d62f2 |
598 | foreign_key_def_begin : /constraint/i /foreign key/i WORD |
599 | { $return = $item[3] } |
600 | | |
601 | /constraint/i NAME /foreign key/i |
602 | { $return = $item[2] } |
603 | | |
604 | /constraint/i /foreign key/i |
02a21f1a |
605 | { $return = '' } |
606 | | |
e78d62f2 |
607 | /foreign key/i WORD |
02a21f1a |
608 | { $return = $item[2] } |
609 | | |
610 | /foreign key/i |
611 | { $return = '' } |
40c1ade1 |
612 | |
1853ba82 |
613 | primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
614 | { |
f2cf1734 |
615 | $return = { |
616 | supertype => 'constraint', |
617 | name => $item{'index_name(?)'}[0], |
618 | type => 'primary_key', |
619 | fields => $item[4], |
58a88238 |
620 | }; |
d529894e |
621 | } |
16dc9970 |
622 | |
f2cf1734 |
623 | unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
624 | { |
f2cf1734 |
625 | $return = { |
626 | supertype => 'constraint', |
627 | name => $item{'index_name(?)'}[0], |
628 | type => 'unique', |
629 | fields => $item[5], |
d529894e |
630 | } |
631 | } |
16dc9970 |
632 | |
f2cf1734 |
633 | normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
634 | { |
f2cf1734 |
635 | $return = { |
636 | supertype => 'index', |
637 | type => 'normal', |
638 | name => $item{'index_name(?)'}[0], |
639 | fields => $item[4], |
d529894e |
640 | } |
641 | } |
16dc9970 |
642 | |
f2cf1734 |
643 | fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
371f5f88 |
644 | { |
f2cf1734 |
645 | $return = { |
646 | supertype => 'index', |
647 | type => 'fulltext', |
648 | name => $item{'index_name(?)'}[0], |
649 | fields => $item[5], |
371f5f88 |
650 | } |
651 | } |
652 | |
d529894e |
653 | name_with_opt_paren : NAME parens_value_list(s?) |
654 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
16dc9970 |
655 | |
f2cf1734 |
656 | UNIQUE : /unique/i { 1 } |
16dc9970 |
657 | |
f2cf1734 |
658 | KEY : /key/i | /index/i |
16dc9970 |
659 | |
19c5bc53 |
660 | table_option : /comment/i /=/ /'.*?'/ |
35843e6b |
661 | { |
662 | my $comment = $item[3]; |
663 | $comment =~ s/^'//; |
664 | $comment =~ s/'$//; |
665 | $return = { comment => $comment }; |
666 | } |
bd30a9a2 |
667 | | /(default )?(charset|character set)/i /\s*=\s*/ WORD |
d529894e |
668 | { |
bd30a9a2 |
669 | $return = { 'CHARACTER SET' => $item[3] }; |
d529894e |
670 | } |
19c5bc53 |
671 | | WORD /\s*=\s*/ WORD |
672 | { |
673 | $return = { $item[1] => $item[3] }; |
674 | } |
bd30a9a2 |
675 | |
676 | default : /default/i |
16dc9970 |
677 | |
13aec984 |
678 | ADD : /add/i |
679 | |
680 | ALTER : /alter/i |
681 | |
40c1ade1 |
682 | CREATE : /create/i |
683 | |
684 | TEMPORARY : /temporary/i |
685 | |
686 | TABLE : /table/i |
687 | |
d529894e |
688 | WORD : /\w+/ |
16dc9970 |
689 | |
d529894e |
690 | DIGITS : /\d+/ |
16dc9970 |
691 | |
d529894e |
692 | COMMA : ',' |
16dc9970 |
693 | |
d529894e |
694 | NAME : "`" /\w+/ "`" |
695 | { $item[2] } |
696 | | /\w+/ |
697 | { $item[1] } |
16dc9970 |
698 | |
d529894e |
699 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
700 | { $item[1] } |
f2cf1734 |
701 | | /'.*?'/ |
702 | { |
703 | # remove leading/trailing quotes |
704 | my $val = $item[1]; |
705 | $val =~ s/^['"]|['"]$//g; |
706 | $return = $val; |
707 | } |
d529894e |
708 | | /NULL/ |
709 | { 'NULL' } |
16dc9970 |
710 | |
bd30a9a2 |
711 | CURRENT_TIMESTAMP : /current_timestamp(\(\))?/i |
712 | | /now\(\)/i |
713 | { 'CURRENT_TIMESTAMP' } |
714 | |
9bf756df |
715 | END_OF_GRAMMAR |
16dc9970 |
716 | |
d529894e |
717 | # ------------------------------------------------------------------- |
718 | sub parse { |
70944bc5 |
719 | my ( $translator, $data ) = @_; |
40c1ade1 |
720 | my $parser = Parse::RecDescent->new($GRAMMAR); |
077ebf34 |
721 | |
e099bee9 |
722 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
723 | local $DEBUG = $translator->debug; |
d529894e |
724 | |
725 | unless (defined $parser) { |
726 | return $translator->error("Error instantiating Parse::RecDescent ". |
727 | "instance: Bad grammer"); |
728 | } |
729 | |
730 | my $result = $parser->startrule($data); |
40c1ade1 |
731 | return $translator->error( "Parse failed." ) unless defined $result; |
13aec984 |
732 | warn "Parse result:".Dumper( $result ) if $DEBUG; |
8ccdeb42 |
733 | |
70944bc5 |
734 | my $schema = $translator->schema; |
13aec984 |
735 | $schema->name($result->{'database_name'}) if $result->{'database_name'}; |
736 | |
034ecdec |
737 | my @tables = sort { |
13aec984 |
738 | $result->{'tables'}{ $a }{'order'} |
739 | <=> |
740 | $result->{'tables'}{ $b }{'order'} |
741 | } keys %{ $result->{'tables'} }; |
034ecdec |
742 | |
743 | for my $table_name ( @tables ) { |
13aec984 |
744 | my $tdata = $result->{tables}{ $table_name }; |
8ccdeb42 |
745 | my $table = $schema->add_table( |
746 | name => $tdata->{'table_name'}, |
40c1ade1 |
747 | ) or die $schema->error; |
8ccdeb42 |
748 | |
734dfc91 |
749 | $table->comments( $tdata->{'comments'} ); |
f2cf1734 |
750 | |
8ccdeb42 |
751 | my @fields = sort { |
752 | $tdata->{'fields'}->{$a}->{'order'} |
753 | <=> |
754 | $tdata->{'fields'}->{$b}->{'order'} |
755 | } keys %{ $tdata->{'fields'} }; |
756 | |
757 | for my $fname ( @fields ) { |
758 | my $fdata = $tdata->{'fields'}{ $fname }; |
759 | my $field = $table->add_field( |
760 | name => $fdata->{'name'}, |
761 | data_type => $fdata->{'data_type'}, |
762 | size => $fdata->{'size'}, |
763 | default_value => $fdata->{'default'}, |
764 | is_auto_increment => $fdata->{'is_auto_inc'}, |
765 | is_nullable => $fdata->{'null'}, |
88b89793 |
766 | comments => $fdata->{'comments'}, |
40c1ade1 |
767 | ) or die $table->error; |
f2cf1734 |
768 | |
769 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
770 | |
bd30a9a2 |
771 | for my $qual ( qw[ binary unsigned zerofill list collate ], |
772 | 'character set', 'on update' ) { |
f2cf1734 |
773 | if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) { |
774 | next if ref $val eq 'ARRAY' && !@$val; |
775 | $field->extra( $qual, $val ); |
776 | } |
777 | } |
778 | |
bd356af8 |
779 | if ( $fdata->{'has_index'} ) { |
780 | $table->add_index( |
781 | name => '', |
782 | type => 'NORMAL', |
783 | fields => $fdata->{'name'}, |
784 | ) or die $table->error; |
785 | } |
786 | |
787 | if ( $fdata->{'is_unique'} ) { |
788 | $table->add_constraint( |
789 | name => '', |
790 | type => 'UNIQUE', |
791 | fields => $fdata->{'name'}, |
792 | ) or die $table->error; |
793 | } |
794 | |
f2cf1734 |
795 | if ( $field->data_type =~ /(set|enum)/i && !$field->size ) { |
796 | my %extra = $field->extra; |
d14fe688 |
797 | my $longest = 0; |
f2cf1734 |
798 | for my $len ( map { length } @{ $extra{'list'} || [] } ) { |
799 | $longest = $len if $len > $longest; |
800 | } |
801 | $field->size( $longest ) if $longest; |
802 | } |
803 | |
804 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
805 | next unless $cdata->{'type'} eq 'foreign_key'; |
806 | $cdata->{'fields'} ||= [ $field->name ]; |
807 | push @{ $tdata->{'constraints'} }, $cdata; |
808 | } |
809 | } |
810 | |
811 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
812 | my $index = $table->add_index( |
813 | name => $idata->{'name'}, |
814 | type => uc $idata->{'type'}, |
815 | fields => $idata->{'fields'}, |
816 | ) or die $table->error; |
817 | } |
818 | |
02a21f1a |
819 | if ( my @options = @{ $tdata->{'table_options'} || [] } ) { |
820 | $table->options( \@options ) or die $table->error; |
821 | } |
822 | |
f2cf1734 |
823 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
824 | my $constraint = $table->add_constraint( |
825 | name => $cdata->{'name'}, |
826 | type => $cdata->{'type'}, |
827 | fields => $cdata->{'fields'}, |
828 | reference_table => $cdata->{'reference_table'}, |
829 | reference_fields => $cdata->{'reference_fields'}, |
830 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
831 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
832 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
f2cf1734 |
833 | ) or die $table->error; |
8ccdeb42 |
834 | } |
835 | } |
836 | |
f62bd16c |
837 | return 1; |
d529894e |
838 | } |
839 | |
840 | 1; |
841 | |
034ecdec |
842 | # ------------------------------------------------------------------- |
d529894e |
843 | # Where man is not nature is barren. |
844 | # William Blake |
034ecdec |
845 | # ------------------------------------------------------------------- |
16dc9970 |
846 | |
d529894e |
847 | =pod |
16dc9970 |
848 | |
849 | =head1 AUTHOR |
850 | |
19c5bc53 |
851 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>, |
8ccdeb42 |
852 | Chris Mungall E<lt>cjm@fruitfly.orgE<gt>. |
16dc9970 |
853 | |
854 | =head1 SEE ALSO |
855 | |
19c5bc53 |
856 | Parse::RecDescent, SQL::Translator::Schema. |
16dc9970 |
857 | |
858 | =cut |