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1 | package SQL::Translator::Parser::MySQL; |
2 | |
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3 | # ------------------------------------------------------------------- |
86318717 |
4 | # $Id: MySQL.pm,v 1.55 2006-10-10 19:04:54 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 ]; |
86318717 |
137 | $VERSION = sprintf "%d.%02d", q$Revision: 1.55 $ =~ /(\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 | |
86318717 |
312 | comment : /\/\*/ /[^\*]+/ /\*\// |
e78d62f2 |
313 | { |
314 | my $comment = $item[2]; |
315 | $comment =~ s/^\s*|\s*$//g; |
316 | $return = $comment; |
317 | } |
86318717 |
318 | |
734dfc91 |
319 | field_comment : /^\s*(?:#|-{2}).*\n/ |
320 | { |
321 | my $comment = $item[1]; |
a82fa2cb |
322 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
323 | $comment =~ s/\s*$//; |
324 | $return = $comment; |
325 | } |
d529894e |
326 | |
35843e6b |
327 | |
328 | field_comment2 : /comment/i /'.*?'/ |
329 | { |
330 | my $comment = $item[2]; |
331 | $comment =~ s/^'//; |
332 | $comment =~ s/'$//; |
333 | $return = $comment; |
334 | } |
335 | |
d529894e |
336 | blank : /\s*/ |
337 | |
100684f3 |
338 | field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?) |
d529894e |
339 | { |
734dfc91 |
340 | my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] }; |
d529894e |
341 | if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) { |
342 | $qualifiers{ $_ } = 1 for @type_quals; |
343 | } |
344 | |
c5dabd71 |
345 | my $null = defined $qualifiers{'not_null'} |
346 | ? $qualifiers{'not_null'} : 1; |
347 | delete $qualifiers{'not_null'}; |
348 | |
35843e6b |
349 | my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } ); |
88b89793 |
350 | |
d529894e |
351 | $return = { |
f2cf1734 |
352 | supertype => 'field', |
353 | name => $item{'field_name'}, |
354 | data_type => $item{'data_type'}{'type'}, |
355 | size => $item{'data_type'}{'size'}, |
356 | list => $item{'data_type'}{'list'}, |
357 | null => $null, |
358 | constraints => $item{'reference_definition(?)'}, |
88b89793 |
359 | comments => [ @comments ], |
d529894e |
360 | %qualifiers, |
361 | } |
362 | } |
363 | | <error> |
dd2ef5ae |
364 | |
d529894e |
365 | field_qualifier : not_null |
366 | { |
367 | $return = { |
368 | null => $item{'not_null'}, |
369 | } |
370 | } |
16dc9970 |
371 | |
d529894e |
372 | field_qualifier : default_val |
373 | { |
374 | $return = { |
375 | default => $item{'default_val'}, |
376 | } |
377 | } |
16dc9970 |
378 | |
d529894e |
379 | field_qualifier : auto_inc |
380 | { |
381 | $return = { |
382 | is_auto_inc => $item{'auto_inc'}, |
383 | } |
384 | } |
16dc9970 |
385 | |
d529894e |
386 | field_qualifier : primary_key |
387 | { |
388 | $return = { |
389 | is_primary_key => $item{'primary_key'}, |
390 | } |
391 | } |
16dc9970 |
392 | |
d529894e |
393 | field_qualifier : unsigned |
394 | { |
395 | $return = { |
396 | is_unsigned => $item{'unsigned'}, |
397 | } |
398 | } |
16dc9970 |
399 | |
19c5bc53 |
400 | field_qualifier : /character set/i WORD |
095b4549 |
401 | { |
402 | $return = { |
bd30a9a2 |
403 | 'CHARACTER SET' => $item[2], |
404 | } |
405 | } |
406 | |
407 | field_qualifier : /collate/i WORD |
408 | { |
409 | $return = { |
410 | COLLATE => $item[2], |
411 | } |
412 | } |
413 | |
414 | field_qualifier : /on update/i CURRENT_TIMESTAMP |
415 | { |
416 | $return = { |
417 | 'ON UPDATE' => $item[2], |
095b4549 |
418 | } |
419 | } |
420 | |
bd356af8 |
421 | field_qualifier : /unique/i KEY(?) |
422 | { |
423 | $return = { |
424 | is_unique => 1, |
425 | } |
426 | } |
427 | |
428 | field_qualifier : KEY |
429 | { |
430 | $return = { |
431 | has_index => 1, |
432 | } |
433 | } |
434 | |
100684f3 |
435 | reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?) |
658637cd |
436 | { |
40c1ade1 |
437 | $return = { |
658637cd |
438 | type => 'foreign_key', |
439 | reference_table => $item[2], |
440 | reference_fields => $item[3][0], |
441 | match_type => $item[4][0], |
100684f3 |
442 | on_delete => $item[5][0], |
443 | on_update => $item[6][0], |
658637cd |
444 | } |
445 | } |
446 | |
02a21f1a |
447 | match_type : /match full/i { 'full' } |
658637cd |
448 | | |
02a21f1a |
449 | /match partial/i { 'partial' } |
658637cd |
450 | |
100684f3 |
451 | on_delete : /on delete/i reference_option |
658637cd |
452 | { $item[2] } |
453 | |
100684f3 |
454 | on_update : |
6fa97af6 |
455 | /on update/i 'CURRENT_TIMESTAMP' |
456 | { $item[2] } |
457 | | |
458 | /on update/i reference_option |
658637cd |
459 | { $item[2] } |
460 | |
461 | reference_option: /restrict/i | |
462 | /cascade/i | |
463 | /set null/i | |
464 | /no action/i | |
465 | /set default/i |
466 | { $item[1] } |
467 | |
f2cf1734 |
468 | index : normal_index |
371f5f88 |
469 | | fulltext_index |
58a88238 |
470 | | <error> |
d529894e |
471 | |
0d41bc9b |
472 | table_name : NAME |
d529894e |
473 | |
0d41bc9b |
474 | field_name : NAME |
d529894e |
475 | |
02a21f1a |
476 | index_name : NAME |
d529894e |
477 | |
478 | data_type : WORD parens_value_list(s?) type_qualifier(s?) |
479 | { |
480 | my $type = $item[1]; |
481 | my $size; # field size, applicable only to non-set fields |
482 | my $list; # set list, applicable only to sets (duh) |
483 | |
44fcd0b5 |
484 | if ( uc($type) =~ /^(SET|ENUM)$/ ) { |
d529894e |
485 | $size = undef; |
486 | $list = $item[2][0]; |
487 | } |
488 | else { |
489 | $size = $item[2][0]; |
490 | $list = []; |
491 | } |
492 | |
6333c482 |
493 | unless ( @{ $size || [] } ) { |
494 | if ( lc $type eq 'tinyint' ) { |
7898fb70 |
495 | $size = 4; |
6333c482 |
496 | } |
497 | elsif ( lc $type eq 'smallint' ) { |
7898fb70 |
498 | $size = 6; |
6333c482 |
499 | } |
500 | elsif ( lc $type eq 'mediumint' ) { |
7898fb70 |
501 | $size = 9; |
6333c482 |
502 | } |
e78d62f2 |
503 | elsif ( $type =~ /^int(eger)?$/i ) { |
f2cf1734 |
504 | $type = 'int'; |
7898fb70 |
505 | $size = 11; |
6333c482 |
506 | } |
507 | elsif ( lc $type eq 'bigint' ) { |
7898fb70 |
508 | $size = 20; |
6333c482 |
509 | } |
1eb08c80 |
510 | elsif ( |
511 | lc $type =~ /(float|double|decimal|numeric|real|fixed|dec)/ |
512 | ) { |
6333c482 |
513 | $size = [8,2]; |
514 | } |
515 | } |
516 | |
7898fb70 |
517 | if ( $type =~ /^tiny(text|blob)$/i ) { |
518 | $size = 255; |
256d534a |
519 | } |
7898fb70 |
520 | elsif ( $type =~ /^(blob|text)$/i ) { |
521 | $size = 65_535; |
256d534a |
522 | } |
7898fb70 |
523 | elsif ( $type =~ /^medium(blob|text)$/i ) { |
524 | $size = 16_777_215; |
256d534a |
525 | } |
7898fb70 |
526 | elsif ( $type =~ /^long(blob|text)$/i ) { |
527 | $size = 4_294_967_295; |
256d534a |
528 | } |
529 | |
d529894e |
530 | $return = { |
531 | type => $type, |
532 | size => $size, |
533 | list => $list, |
534 | qualifiers => $item[3], |
535 | } |
536 | } |
16dc9970 |
537 | |
658637cd |
538 | parens_field_list : '(' field_name(s /,/) ')' |
539 | { $item[2] } |
540 | |
d529894e |
541 | parens_value_list : '(' VALUE(s /,/) ')' |
542 | { $item[2] } |
16dc9970 |
543 | |
d529894e |
544 | type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i |
545 | { lc $item[1] } |
16dc9970 |
546 | |
d529894e |
547 | field_type : WORD |
16dc9970 |
548 | |
d529894e |
549 | create_index : /create/i /index/i |
dd2ef5ae |
550 | |
e78d62f2 |
551 | not_null : /not/i /null/i |
552 | { $return = 0 } |
553 | | |
554 | /null/i |
555 | { $return = 1 } |
16dc9970 |
556 | |
d529894e |
557 | unsigned : /unsigned/i { $return = 0 } |
16dc9970 |
558 | |
09fa21a6 |
559 | #default_val : /default/i /(?:')?[\s\w\d:.-]*(?:')?/ |
560 | # { |
561 | # $item[2] =~ s/'//g; |
562 | # $return = $item[2]; |
563 | # } |
564 | |
6fa97af6 |
565 | default_val : |
566 | /default/i 'CURRENT_TIMESTAMP' |
567 | { |
568 | $return = $item[2]; |
569 | } |
570 | | |
571 | /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/ |
09fa21a6 |
572 | { |
573 | $item[2] =~ s/^\s*'|'\s*$//g; |
d529894e |
574 | $return = $item[2]; |
575 | } |
16dc9970 |
576 | |
d529894e |
577 | auto_inc : /auto_increment/i { 1 } |
16dc9970 |
578 | |
d529894e |
579 | primary_key : /primary/i /key/i { 1 } |
16dc9970 |
580 | |
f2cf1734 |
581 | constraint : primary_key_def |
582 | | unique_key_def |
583 | | foreign_key_def |
584 | | <error> |
585 | |
02a21f1a |
586 | foreign_key_def : foreign_key_def_begin parens_field_list reference_definition |
40c1ade1 |
587 | { |
588 | $return = { |
f2cf1734 |
589 | supertype => 'constraint', |
40c1ade1 |
590 | type => 'foreign_key', |
02a21f1a |
591 | name => $item[1], |
09fa21a6 |
592 | fields => $item[2], |
40c1ade1 |
593 | %{ $item{'reference_definition'} }, |
594 | } |
595 | } |
596 | |
e78d62f2 |
597 | foreign_key_def_begin : /constraint/i /foreign key/i WORD |
598 | { $return = $item[3] } |
599 | | |
600 | /constraint/i NAME /foreign key/i |
601 | { $return = $item[2] } |
602 | | |
603 | /constraint/i /foreign key/i |
02a21f1a |
604 | { $return = '' } |
605 | | |
e78d62f2 |
606 | /foreign key/i WORD |
02a21f1a |
607 | { $return = $item[2] } |
608 | | |
609 | /foreign key/i |
610 | { $return = '' } |
40c1ade1 |
611 | |
1853ba82 |
612 | primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
613 | { |
f2cf1734 |
614 | $return = { |
615 | supertype => 'constraint', |
616 | name => $item{'index_name(?)'}[0], |
617 | type => 'primary_key', |
618 | fields => $item[4], |
58a88238 |
619 | }; |
d529894e |
620 | } |
16dc9970 |
621 | |
f2cf1734 |
622 | unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
623 | { |
f2cf1734 |
624 | $return = { |
625 | supertype => 'constraint', |
626 | name => $item{'index_name(?)'}[0], |
627 | type => 'unique', |
628 | fields => $item[5], |
d529894e |
629 | } |
630 | } |
16dc9970 |
631 | |
f2cf1734 |
632 | normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
633 | { |
f2cf1734 |
634 | $return = { |
635 | supertype => 'index', |
636 | type => 'normal', |
637 | name => $item{'index_name(?)'}[0], |
638 | fields => $item[4], |
d529894e |
639 | } |
640 | } |
16dc9970 |
641 | |
f2cf1734 |
642 | fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
371f5f88 |
643 | { |
f2cf1734 |
644 | $return = { |
645 | supertype => 'index', |
646 | type => 'fulltext', |
647 | name => $item{'index_name(?)'}[0], |
648 | fields => $item[5], |
371f5f88 |
649 | } |
650 | } |
651 | |
d529894e |
652 | name_with_opt_paren : NAME parens_value_list(s?) |
653 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
16dc9970 |
654 | |
f2cf1734 |
655 | UNIQUE : /unique/i { 1 } |
16dc9970 |
656 | |
f2cf1734 |
657 | KEY : /key/i | /index/i |
16dc9970 |
658 | |
19c5bc53 |
659 | table_option : /comment/i /=/ /'.*?'/ |
35843e6b |
660 | { |
661 | my $comment = $item[3]; |
662 | $comment =~ s/^'//; |
663 | $comment =~ s/'$//; |
664 | $return = { comment => $comment }; |
665 | } |
bd30a9a2 |
666 | | /(default )?(charset|character set)/i /\s*=\s*/ WORD |
d529894e |
667 | { |
bd30a9a2 |
668 | $return = { 'CHARACTER SET' => $item[3] }; |
d529894e |
669 | } |
19c5bc53 |
670 | | WORD /\s*=\s*/ WORD |
671 | { |
672 | $return = { $item[1] => $item[3] }; |
673 | } |
bd30a9a2 |
674 | |
675 | default : /default/i |
16dc9970 |
676 | |
13aec984 |
677 | ADD : /add/i |
678 | |
679 | ALTER : /alter/i |
680 | |
40c1ade1 |
681 | CREATE : /create/i |
682 | |
683 | TEMPORARY : /temporary/i |
684 | |
685 | TABLE : /table/i |
686 | |
d529894e |
687 | WORD : /\w+/ |
16dc9970 |
688 | |
d529894e |
689 | DIGITS : /\d+/ |
16dc9970 |
690 | |
d529894e |
691 | COMMA : ',' |
16dc9970 |
692 | |
d529894e |
693 | NAME : "`" /\w+/ "`" |
694 | { $item[2] } |
695 | | /\w+/ |
696 | { $item[1] } |
16dc9970 |
697 | |
d529894e |
698 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
699 | { $item[1] } |
f2cf1734 |
700 | | /'.*?'/ |
701 | { |
702 | # remove leading/trailing quotes |
703 | my $val = $item[1]; |
704 | $val =~ s/^['"]|['"]$//g; |
705 | $return = $val; |
706 | } |
d529894e |
707 | | /NULL/ |
708 | { 'NULL' } |
16dc9970 |
709 | |
bd30a9a2 |
710 | CURRENT_TIMESTAMP : /current_timestamp(\(\))?/i |
711 | | /now\(\)/i |
712 | { 'CURRENT_TIMESTAMP' } |
713 | |
9bf756df |
714 | END_OF_GRAMMAR |
16dc9970 |
715 | |
d529894e |
716 | # ------------------------------------------------------------------- |
717 | sub parse { |
70944bc5 |
718 | my ( $translator, $data ) = @_; |
40c1ade1 |
719 | my $parser = Parse::RecDescent->new($GRAMMAR); |
077ebf34 |
720 | |
e099bee9 |
721 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
722 | local $DEBUG = $translator->debug; |
d529894e |
723 | |
724 | unless (defined $parser) { |
725 | return $translator->error("Error instantiating Parse::RecDescent ". |
726 | "instance: Bad grammer"); |
727 | } |
728 | |
729 | my $result = $parser->startrule($data); |
40c1ade1 |
730 | return $translator->error( "Parse failed." ) unless defined $result; |
13aec984 |
731 | warn "Parse result:".Dumper( $result ) if $DEBUG; |
8ccdeb42 |
732 | |
70944bc5 |
733 | my $schema = $translator->schema; |
13aec984 |
734 | $schema->name($result->{'database_name'}) if $result->{'database_name'}; |
735 | |
034ecdec |
736 | my @tables = sort { |
13aec984 |
737 | $result->{'tables'}{ $a }{'order'} |
738 | <=> |
739 | $result->{'tables'}{ $b }{'order'} |
740 | } keys %{ $result->{'tables'} }; |
034ecdec |
741 | |
742 | for my $table_name ( @tables ) { |
13aec984 |
743 | my $tdata = $result->{tables}{ $table_name }; |
8ccdeb42 |
744 | my $table = $schema->add_table( |
745 | name => $tdata->{'table_name'}, |
40c1ade1 |
746 | ) or die $schema->error; |
8ccdeb42 |
747 | |
734dfc91 |
748 | $table->comments( $tdata->{'comments'} ); |
f2cf1734 |
749 | |
8ccdeb42 |
750 | my @fields = sort { |
751 | $tdata->{'fields'}->{$a}->{'order'} |
752 | <=> |
753 | $tdata->{'fields'}->{$b}->{'order'} |
754 | } keys %{ $tdata->{'fields'} }; |
755 | |
756 | for my $fname ( @fields ) { |
757 | my $fdata = $tdata->{'fields'}{ $fname }; |
758 | my $field = $table->add_field( |
759 | name => $fdata->{'name'}, |
760 | data_type => $fdata->{'data_type'}, |
761 | size => $fdata->{'size'}, |
762 | default_value => $fdata->{'default'}, |
763 | is_auto_increment => $fdata->{'is_auto_inc'}, |
764 | is_nullable => $fdata->{'null'}, |
88b89793 |
765 | comments => $fdata->{'comments'}, |
40c1ade1 |
766 | ) or die $table->error; |
f2cf1734 |
767 | |
768 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
769 | |
bd30a9a2 |
770 | for my $qual ( qw[ binary unsigned zerofill list collate ], |
771 | 'character set', 'on update' ) { |
f2cf1734 |
772 | if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) { |
773 | next if ref $val eq 'ARRAY' && !@$val; |
774 | $field->extra( $qual, $val ); |
775 | } |
776 | } |
777 | |
bd356af8 |
778 | if ( $fdata->{'has_index'} ) { |
779 | $table->add_index( |
780 | name => '', |
781 | type => 'NORMAL', |
782 | fields => $fdata->{'name'}, |
783 | ) or die $table->error; |
784 | } |
785 | |
786 | if ( $fdata->{'is_unique'} ) { |
787 | $table->add_constraint( |
788 | name => '', |
789 | type => 'UNIQUE', |
790 | fields => $fdata->{'name'}, |
791 | ) or die $table->error; |
792 | } |
793 | |
f2cf1734 |
794 | if ( $field->data_type =~ /(set|enum)/i && !$field->size ) { |
795 | my %extra = $field->extra; |
d14fe688 |
796 | my $longest = 0; |
f2cf1734 |
797 | for my $len ( map { length } @{ $extra{'list'} || [] } ) { |
798 | $longest = $len if $len > $longest; |
799 | } |
800 | $field->size( $longest ) if $longest; |
801 | } |
802 | |
803 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
804 | next unless $cdata->{'type'} eq 'foreign_key'; |
805 | $cdata->{'fields'} ||= [ $field->name ]; |
806 | push @{ $tdata->{'constraints'} }, $cdata; |
807 | } |
808 | } |
809 | |
810 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
811 | my $index = $table->add_index( |
812 | name => $idata->{'name'}, |
813 | type => uc $idata->{'type'}, |
814 | fields => $idata->{'fields'}, |
815 | ) or die $table->error; |
816 | } |
817 | |
02a21f1a |
818 | if ( my @options = @{ $tdata->{'table_options'} || [] } ) { |
819 | $table->options( \@options ) or die $table->error; |
820 | } |
821 | |
f2cf1734 |
822 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
823 | my $constraint = $table->add_constraint( |
824 | name => $cdata->{'name'}, |
825 | type => $cdata->{'type'}, |
826 | fields => $cdata->{'fields'}, |
827 | reference_table => $cdata->{'reference_table'}, |
828 | reference_fields => $cdata->{'reference_fields'}, |
829 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
830 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
831 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
f2cf1734 |
832 | ) or die $table->error; |
8ccdeb42 |
833 | } |
834 | } |
835 | |
f62bd16c |
836 | return 1; |
d529894e |
837 | } |
838 | |
839 | 1; |
840 | |
034ecdec |
841 | # ------------------------------------------------------------------- |
d529894e |
842 | # Where man is not nature is barren. |
843 | # William Blake |
034ecdec |
844 | # ------------------------------------------------------------------- |
16dc9970 |
845 | |
d529894e |
846 | =pod |
16dc9970 |
847 | |
848 | =head1 AUTHOR |
849 | |
19c5bc53 |
850 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>, |
8ccdeb42 |
851 | Chris Mungall E<lt>cjm@fruitfly.orgE<gt>. |
16dc9970 |
852 | |
853 | =head1 SEE ALSO |
854 | |
19c5bc53 |
855 | Parse::RecDescent, SQL::Translator::Schema. |
16dc9970 |
856 | |
857 | =cut |