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1 | package SQL::Translator::Parser::MySQL; |
2 | |
49e1eb70 |
3 | # ------------------------------------------------------------------- |
d31c185b |
4 | # $Id: MySQL.pm,v 1.58 2007-03-19 17:15:24 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 } |
a7f49dfb |
104 | or ENGINE = {BDB | HEAP | ISAM | InnoDB | MERGE | MRG_MYISAM | MYISAM } |
629b76f9 |
105 | or AUTO_INCREMENT = # |
106 | or AVG_ROW_LENGTH = # |
a7f49dfb |
107 | or [ DEFAULT ] CHARACTER SET charset_name |
629b76f9 |
108 | or CHECKSUM = {0 | 1} |
a7f49dfb |
109 | or COLLATE collation_name |
629b76f9 |
110 | or COMMENT = "string" |
111 | or MAX_ROWS = # |
112 | or MIN_ROWS = # |
113 | or PACK_KEYS = {0 | 1 | DEFAULT} |
114 | or PASSWORD = "string" |
115 | or DELAY_KEY_WRITE = {0 | 1} |
116 | or ROW_FORMAT= { default | dynamic | fixed | compressed } |
117 | or RAID_TYPE= {1 | STRIPED | RAID0 } RAID_CHUNKS=# RAID_CHUNKSIZE=# |
118 | or UNION = (table_name,[table_name...]) |
119 | or INSERT_METHOD= {NO | FIRST | LAST } |
120 | or DATA DIRECTORY="absolute path to directory" |
121 | or INDEX DIRECTORY="absolute path to directory" |
122 | |
a7f49dfb |
123 | |
13aec984 |
124 | A subset of the ALTER TABLE syntax that allows addition of foreign keys: |
125 | |
126 | ALTER [IGNORE] TABLE tbl_name alter_specification [, alter_specification] ... |
127 | |
128 | alter_specification: |
129 | ADD [CONSTRAINT [symbol]] |
130 | FOREIGN KEY [index_name] (index_col_name,...) |
131 | [reference_definition] |
132 | |
133 | A subset of INSERT that we ignore: |
134 | |
135 | INSERT anything |
136 | |
d529894e |
137 | =cut |
138 | |
16dc9970 |
139 | use strict; |
d529894e |
140 | use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; |
d31c185b |
141 | $VERSION = sprintf "%d.%02d", q$Revision: 1.58 $ =~ /(\d+)\.(\d+)/; |
8d0f3086 |
142 | $DEBUG = 0 unless defined $DEBUG; |
077ebf34 |
143 | |
d529894e |
144 | use Data::Dumper; |
077ebf34 |
145 | use Parse::RecDescent; |
146 | use Exporter; |
07d6e5f7 |
147 | use Storable qw(dclone); |
6b2dbb1a |
148 | use DBI qw(:sql_types); |
077ebf34 |
149 | use base qw(Exporter); |
150 | |
6b2dbb1a |
151 | our %type_mapping = ( |
6b2dbb1a |
152 | ); |
153 | |
077ebf34 |
154 | @EXPORT_OK = qw(parse); |
155 | |
d529894e |
156 | # Enable warnings within the Parse::RecDescent module. |
157 | $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error |
158 | $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c. |
159 | $::RD_HINT = 1; # Give out hints to help fix problems. |
160 | |
d31c185b |
161 | use constant DEFAULT_PARSER_VERSION => 30000; |
162 | |
9bf756df |
163 | $GRAMMAR = << 'END_OF_GRAMMAR'; |
d529894e |
164 | |
8ccdeb42 |
165 | { |
d31c185b |
166 | my ( $database_name, %tables, $table_order, @table_comments, %views, $view_order, %procedures, $proc_order ); |
86318717 |
167 | my $delimiter = ';'; |
8ccdeb42 |
168 | } |
d529894e |
169 | |
629b76f9 |
170 | # |
171 | # The "eofile" rule makes the parser fail if any "statement" rule |
172 | # fails. Otherwise, the first successful match by a "statement" |
173 | # won't cause the failure needed to know that the parse, as a whole, |
174 | # failed. -ky |
175 | # |
13aec984 |
176 | startrule : statement(s) eofile { |
d31c185b |
177 | { tables => \%tables, database_name => $database_name, views => \%views, procedures =>\%procedures } |
13aec984 |
178 | } |
629b76f9 |
179 | |
180 | eofile : /^\Z/ |
d529894e |
181 | |
182 | statement : comment |
dcb4fa06 |
183 | | use |
33d0d6d4 |
184 | | set |
61745327 |
185 | | drop |
d529894e |
186 | | create |
13aec984 |
187 | | alter |
188 | | insert |
86318717 |
189 | | delimiter |
190 | | empty_statement |
d529894e |
191 | | <error> |
192 | |
86318717 |
193 | use : /use/i WORD "$delimiter" |
13aec984 |
194 | { |
195 | $database_name = $item[2]; |
196 | @table_comments = (); |
197 | } |
dcb4fa06 |
198 | |
86318717 |
199 | set : /set/i /[^;]+/ "$delimiter" |
c5dabd71 |
200 | { @table_comments = () } |
734dfc91 |
201 | |
86318717 |
202 | drop : /drop/i TABLE /[^;]+/ "$delimiter" |
33d0d6d4 |
203 | |
86318717 |
204 | drop : /drop/i WORD(s) "$delimiter" |
c5dabd71 |
205 | { @table_comments = () } |
61745327 |
206 | |
9bf756df |
207 | string : |
208 | # MySQL strings, unlike common SQL strings, can be double-quoted or |
209 | # single-quoted, and you can escape the delmiters by doubling (but only the |
210 | # delimiter) or by backslashing. |
211 | |
212 | /'(\\.|''|[^\\\'])*'/ | |
213 | /"(\\.|""|[^\\\"])*"/ |
214 | # For reference, std sql str: /(?:(?:\')(?:[^\']*(?:(?:\'\')[^\']*)*)(?:\'))// |
215 | |
216 | nonstring : /[^;\'"]+/ |
217 | |
218 | statement_body : (string | nonstring)(s?) |
219 | |
86318717 |
220 | insert : /insert/i statement_body "$delimiter" |
13aec984 |
221 | |
86318717 |
222 | delimiter : /delimiter/i /[\S]+/ |
07d6e5f7 |
223 | { $delimiter = $item[2] } |
86318717 |
224 | |
225 | empty_statement : "$delimiter" |
226 | |
227 | alter : ALTER TABLE table_name alter_specification(s /,/) "$delimiter" |
13aec984 |
228 | { |
229 | my $table_name = $item{'table_name'}; |
230 | die "Cannot ALTER table '$table_name'; it does not exist" |
231 | unless $tables{ $table_name }; |
232 | for my $definition ( @{ $item[4] } ) { |
233 | $definition->{'extra'}->{'alter'} = 1; |
234 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
235 | } |
236 | } |
237 | |
238 | alter_specification : ADD foreign_key_def |
239 | { $return = $item[2] } |
240 | |
86318717 |
241 | create : CREATE /database/i WORD "$delimiter" |
c5dabd71 |
242 | { @table_comments = () } |
dcb4fa06 |
243 | |
86318717 |
244 | create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) /(,\s*)?\)/ table_option(s?) "$delimiter" |
d529894e |
245 | { |
246 | my $table_name = $item{'table_name'}; |
247 | $tables{ $table_name }{'order'} = ++$table_order; |
248 | $tables{ $table_name }{'table_name'} = $table_name; |
249 | |
734dfc91 |
250 | if ( @table_comments ) { |
251 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
252 | @table_comments = (); |
253 | } |
254 | |
61745327 |
255 | my $i = 1; |
40c1ade1 |
256 | for my $definition ( @{ $item[7] } ) { |
f2cf1734 |
257 | if ( $definition->{'supertype'} eq 'field' ) { |
d529894e |
258 | my $field_name = $definition->{'name'}; |
259 | $tables{ $table_name }{'fields'}{ $field_name } = |
260 | { %$definition, order => $i }; |
261 | $i++; |
262 | |
263 | if ( $definition->{'is_primary_key'} ) { |
f2cf1734 |
264 | push @{ $tables{ $table_name }{'constraints'} }, |
d529894e |
265 | { |
266 | type => 'primary_key', |
267 | fields => [ $field_name ], |
16dc9970 |
268 | } |
d529894e |
269 | ; |
270 | } |
dd2ef5ae |
271 | } |
f2cf1734 |
272 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
f2cf1734 |
273 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
40c1ade1 |
274 | } |
f2cf1734 |
275 | elsif ( $definition->{'supertype'} eq 'index' ) { |
734dfc91 |
276 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
dd2ef5ae |
277 | } |
d529894e |
278 | } |
dd2ef5ae |
279 | |
02a21f1a |
280 | if ( my @options = @{ $item{'table_option(s?)'} } ) { |
35843e6b |
281 | for my $option ( @options ) { |
282 | my ( $key, $value ) = each %$option; |
283 | if ( $key eq 'comment' ) { |
284 | push @{ $tables{ $table_name }{'comments'} }, $value; |
285 | } |
286 | else { |
287 | push @{ $tables{ $table_name }{'table_options'} }, $option; |
288 | } |
289 | } |
d529894e |
290 | } |
58a88238 |
291 | |
292 | 1; |
d529894e |
293 | } |
dd2ef5ae |
294 | |
40c1ade1 |
295 | opt_if_not_exists : /if not exists/i |
296 | |
86318717 |
297 | create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' "$delimiter" |
d529894e |
298 | { |
734dfc91 |
299 | @table_comments = (); |
d529894e |
300 | push @{ $tables{ $item{'table_name'} }{'indices'} }, |
301 | { |
302 | name => $item[4], |
303 | type => $item[2] ? 'unique' : 'normal', |
304 | fields => $item[8], |
dd2ef5ae |
305 | } |
d529894e |
306 | ; |
307 | } |
dd2ef5ae |
308 | |
d31c185b |
309 | create : CREATE /trigger/i NAME not_delimiter "$delimiter" |
07d6e5f7 |
310 | { |
311 | @table_comments = (); |
312 | } |
d31c185b |
313 | |
314 | create : CREATE PROCEDURE NAME not_delimiter "$delimiter" |
07d6e5f7 |
315 | { |
316 | @table_comments = (); |
d31c185b |
317 | my $func_name = $item[3]; |
318 | my $owner = ''; |
319 | my $sql = "$item[1] $item[2] $item[3] $item[4]"; |
320 | |
321 | $procedures{ $func_name }{'order'} = ++$proc_order; |
322 | $procedures{ $func_name }{'name'} = $func_name; |
323 | $procedures{ $func_name }{'owner'} = $owner; |
324 | $procedures{ $func_name }{'sql'} = $sql; |
07d6e5f7 |
325 | } |
d31c185b |
326 | |
327 | PROCEDURE : /procedure/i |
07d6e5f7 |
328 | | /function/i |
d31c185b |
329 | |
330 | create : CREATE algorithm /view/i NAME not_delimiter "$delimiter" |
07d6e5f7 |
331 | { |
332 | @table_comments = (); |
d31c185b |
333 | my $view_name = $item[4]; |
334 | my $sql = "$item[1] $item[2] $item[3] $item[4] $item[5]"; |
335 | |
336 | # Hack to strip database from function calls in SQL |
337 | $sql =~ s#`\w+`\.(`\w+`\()##g; |
338 | |
339 | $views{ $view_name }{'order'} = ++$view_order; |
340 | $views{ $view_name }{'name'} = $view_name; |
341 | $views{ $view_name }{'sql'} = $sql; |
07d6e5f7 |
342 | } |
d31c185b |
343 | |
344 | algorithm : /algorithm/i /=/ WORD |
07d6e5f7 |
345 | { |
346 | $return = "$item[1]=$item[3]"; |
347 | } |
d31c185b |
348 | |
349 | not_delimiter : /.*?(?=$delimiter)/is |
350 | |
f2cf1734 |
351 | create_definition : constraint |
352 | | index |
d529894e |
353 | | field |
02a21f1a |
354 | | comment |
d529894e |
355 | | <error> |
356 | |
734dfc91 |
357 | comment : /^\s*(?:#|-{2}).*\n/ |
358 | { |
359 | my $comment = $item[1]; |
a82fa2cb |
360 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
361 | $comment =~ s/\s*$//; |
362 | $return = $comment; |
734dfc91 |
363 | } |
364 | |
da9f2af8 |
365 | comment : /\/\*/ /.*?\*\//s |
e78d62f2 |
366 | { |
367 | my $comment = $item[2]; |
73212389 |
368 | $comment = substr($comment, 0, -2); |
e78d62f2 |
369 | $comment =~ s/^\s*|\s*$//g; |
370 | $return = $comment; |
371 | } |
86318717 |
372 | |
734dfc91 |
373 | field_comment : /^\s*(?:#|-{2}).*\n/ |
374 | { |
375 | my $comment = $item[1]; |
a82fa2cb |
376 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
377 | $comment =~ s/\s*$//; |
378 | $return = $comment; |
379 | } |
d529894e |
380 | |
35843e6b |
381 | |
382 | field_comment2 : /comment/i /'.*?'/ |
383 | { |
384 | my $comment = $item[2]; |
385 | $comment =~ s/^'//; |
386 | $comment =~ s/'$//; |
387 | $return = $comment; |
388 | } |
389 | |
d529894e |
390 | blank : /\s*/ |
391 | |
100684f3 |
392 | field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?) |
d529894e |
393 | { |
734dfc91 |
394 | my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] }; |
d529894e |
395 | if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) { |
396 | $qualifiers{ $_ } = 1 for @type_quals; |
397 | } |
398 | |
c5dabd71 |
399 | my $null = defined $qualifiers{'not_null'} |
400 | ? $qualifiers{'not_null'} : 1; |
401 | delete $qualifiers{'not_null'}; |
402 | |
35843e6b |
403 | my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } ); |
88b89793 |
404 | |
d529894e |
405 | $return = { |
f2cf1734 |
406 | supertype => 'field', |
407 | name => $item{'field_name'}, |
408 | data_type => $item{'data_type'}{'type'}, |
409 | size => $item{'data_type'}{'size'}, |
410 | list => $item{'data_type'}{'list'}, |
411 | null => $null, |
412 | constraints => $item{'reference_definition(?)'}, |
88b89793 |
413 | comments => [ @comments ], |
d529894e |
414 | %qualifiers, |
415 | } |
416 | } |
417 | | <error> |
dd2ef5ae |
418 | |
d529894e |
419 | field_qualifier : not_null |
420 | { |
421 | $return = { |
422 | null => $item{'not_null'}, |
423 | } |
424 | } |
16dc9970 |
425 | |
d529894e |
426 | field_qualifier : default_val |
427 | { |
428 | $return = { |
429 | default => $item{'default_val'}, |
430 | } |
431 | } |
16dc9970 |
432 | |
d529894e |
433 | field_qualifier : auto_inc |
434 | { |
435 | $return = { |
436 | is_auto_inc => $item{'auto_inc'}, |
437 | } |
438 | } |
16dc9970 |
439 | |
d529894e |
440 | field_qualifier : primary_key |
441 | { |
442 | $return = { |
443 | is_primary_key => $item{'primary_key'}, |
444 | } |
445 | } |
16dc9970 |
446 | |
d529894e |
447 | field_qualifier : unsigned |
448 | { |
449 | $return = { |
450 | is_unsigned => $item{'unsigned'}, |
451 | } |
452 | } |
16dc9970 |
453 | |
19c5bc53 |
454 | field_qualifier : /character set/i WORD |
095b4549 |
455 | { |
456 | $return = { |
bd30a9a2 |
457 | 'CHARACTER SET' => $item[2], |
458 | } |
459 | } |
460 | |
461 | field_qualifier : /collate/i WORD |
462 | { |
463 | $return = { |
464 | COLLATE => $item[2], |
465 | } |
466 | } |
467 | |
468 | field_qualifier : /on update/i CURRENT_TIMESTAMP |
469 | { |
470 | $return = { |
471 | 'ON UPDATE' => $item[2], |
095b4549 |
472 | } |
473 | } |
474 | |
bd356af8 |
475 | field_qualifier : /unique/i KEY(?) |
476 | { |
477 | $return = { |
478 | is_unique => 1, |
479 | } |
480 | } |
481 | |
482 | field_qualifier : KEY |
483 | { |
484 | $return = { |
485 | has_index => 1, |
486 | } |
487 | } |
488 | |
100684f3 |
489 | reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?) |
658637cd |
490 | { |
40c1ade1 |
491 | $return = { |
658637cd |
492 | type => 'foreign_key', |
493 | reference_table => $item[2], |
494 | reference_fields => $item[3][0], |
495 | match_type => $item[4][0], |
100684f3 |
496 | on_delete => $item[5][0], |
497 | on_update => $item[6][0], |
658637cd |
498 | } |
499 | } |
500 | |
02a21f1a |
501 | match_type : /match full/i { 'full' } |
658637cd |
502 | | |
02a21f1a |
503 | /match partial/i { 'partial' } |
658637cd |
504 | |
100684f3 |
505 | on_delete : /on delete/i reference_option |
658637cd |
506 | { $item[2] } |
507 | |
100684f3 |
508 | on_update : |
6fa97af6 |
509 | /on update/i 'CURRENT_TIMESTAMP' |
510 | { $item[2] } |
511 | | |
512 | /on update/i reference_option |
658637cd |
513 | { $item[2] } |
514 | |
515 | reference_option: /restrict/i | |
516 | /cascade/i | |
517 | /set null/i | |
518 | /no action/i | |
519 | /set default/i |
520 | { $item[1] } |
521 | |
f2cf1734 |
522 | index : normal_index |
371f5f88 |
523 | | fulltext_index |
58a88238 |
524 | | <error> |
d529894e |
525 | |
0d41bc9b |
526 | table_name : NAME |
d529894e |
527 | |
0d41bc9b |
528 | field_name : NAME |
d529894e |
529 | |
02a21f1a |
530 | index_name : NAME |
d529894e |
531 | |
532 | data_type : WORD parens_value_list(s?) type_qualifier(s?) |
533 | { |
534 | my $type = $item[1]; |
535 | my $size; # field size, applicable only to non-set fields |
536 | my $list; # set list, applicable only to sets (duh) |
537 | |
44fcd0b5 |
538 | if ( uc($type) =~ /^(SET|ENUM)$/ ) { |
d529894e |
539 | $size = undef; |
540 | $list = $item[2][0]; |
541 | } |
542 | else { |
543 | $size = $item[2][0]; |
544 | $list = []; |
545 | } |
546 | |
256d534a |
547 | |
d529894e |
548 | $return = { |
549 | type => $type, |
550 | size => $size, |
551 | list => $list, |
552 | qualifiers => $item[3], |
553 | } |
554 | } |
16dc9970 |
555 | |
658637cd |
556 | parens_field_list : '(' field_name(s /,/) ')' |
557 | { $item[2] } |
558 | |
d529894e |
559 | parens_value_list : '(' VALUE(s /,/) ')' |
560 | { $item[2] } |
16dc9970 |
561 | |
d529894e |
562 | type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i |
563 | { lc $item[1] } |
16dc9970 |
564 | |
d529894e |
565 | field_type : WORD |
16dc9970 |
566 | |
d529894e |
567 | create_index : /create/i /index/i |
dd2ef5ae |
568 | |
e78d62f2 |
569 | not_null : /not/i /null/i |
570 | { $return = 0 } |
571 | | |
572 | /null/i |
573 | { $return = 1 } |
16dc9970 |
574 | |
d529894e |
575 | unsigned : /unsigned/i { $return = 0 } |
16dc9970 |
576 | |
09fa21a6 |
577 | #default_val : /default/i /(?:')?[\s\w\d:.-]*(?:')?/ |
578 | # { |
579 | # $item[2] =~ s/'//g; |
580 | # $return = $item[2]; |
581 | # } |
582 | |
6fa97af6 |
583 | default_val : |
584 | /default/i 'CURRENT_TIMESTAMP' |
585 | { |
586 | $return = $item[2]; |
587 | } |
588 | | |
589 | /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/ |
09fa21a6 |
590 | { |
591 | $item[2] =~ s/^\s*'|'\s*$//g; |
d529894e |
592 | $return = $item[2]; |
593 | } |
16dc9970 |
594 | |
d529894e |
595 | auto_inc : /auto_increment/i { 1 } |
16dc9970 |
596 | |
d529894e |
597 | primary_key : /primary/i /key/i { 1 } |
16dc9970 |
598 | |
f2cf1734 |
599 | constraint : primary_key_def |
600 | | unique_key_def |
601 | | foreign_key_def |
602 | | <error> |
603 | |
02a21f1a |
604 | foreign_key_def : foreign_key_def_begin parens_field_list reference_definition |
40c1ade1 |
605 | { |
606 | $return = { |
f2cf1734 |
607 | supertype => 'constraint', |
40c1ade1 |
608 | type => 'foreign_key', |
02a21f1a |
609 | name => $item[1], |
09fa21a6 |
610 | fields => $item[2], |
40c1ade1 |
611 | %{ $item{'reference_definition'} }, |
612 | } |
613 | } |
614 | |
e78d62f2 |
615 | foreign_key_def_begin : /constraint/i /foreign key/i WORD |
616 | { $return = $item[3] } |
617 | | |
618 | /constraint/i NAME /foreign key/i |
619 | { $return = $item[2] } |
620 | | |
621 | /constraint/i /foreign key/i |
02a21f1a |
622 | { $return = '' } |
623 | | |
e78d62f2 |
624 | /foreign key/i WORD |
02a21f1a |
625 | { $return = $item[2] } |
626 | | |
627 | /foreign key/i |
628 | { $return = '' } |
40c1ade1 |
629 | |
1853ba82 |
630 | primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
631 | { |
f2cf1734 |
632 | $return = { |
633 | supertype => 'constraint', |
634 | name => $item{'index_name(?)'}[0], |
635 | type => 'primary_key', |
636 | fields => $item[4], |
58a88238 |
637 | }; |
d529894e |
638 | } |
16dc9970 |
639 | |
f2cf1734 |
640 | unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
641 | { |
f2cf1734 |
642 | $return = { |
643 | supertype => 'constraint', |
644 | name => $item{'index_name(?)'}[0], |
645 | type => 'unique', |
646 | fields => $item[5], |
d529894e |
647 | } |
648 | } |
16dc9970 |
649 | |
f2cf1734 |
650 | normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
651 | { |
f2cf1734 |
652 | $return = { |
653 | supertype => 'index', |
654 | type => 'normal', |
655 | name => $item{'index_name(?)'}[0], |
656 | fields => $item[4], |
d529894e |
657 | } |
658 | } |
16dc9970 |
659 | |
f2cf1734 |
660 | fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
371f5f88 |
661 | { |
f2cf1734 |
662 | $return = { |
663 | supertype => 'index', |
664 | type => 'fulltext', |
665 | name => $item{'index_name(?)'}[0], |
666 | fields => $item[5], |
371f5f88 |
667 | } |
668 | } |
669 | |
d529894e |
670 | name_with_opt_paren : NAME parens_value_list(s?) |
671 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
16dc9970 |
672 | |
f2cf1734 |
673 | UNIQUE : /unique/i { 1 } |
16dc9970 |
674 | |
f2cf1734 |
675 | KEY : /key/i | /index/i |
16dc9970 |
676 | |
19c5bc53 |
677 | table_option : /comment/i /=/ /'.*?'/ |
35843e6b |
678 | { |
679 | my $comment = $item[3]; |
680 | $comment =~ s/^'//; |
681 | $comment =~ s/'$//; |
682 | $return = { comment => $comment }; |
683 | } |
bb4c66d1 |
684 | | /(default )?(charset|character set)/i /\s*=?\s*/ WORD |
d529894e |
685 | { |
bd30a9a2 |
686 | $return = { 'CHARACTER SET' => $item[3] }; |
d529894e |
687 | } |
a7f49dfb |
688 | | /collate/i WORD |
689 | { |
690 | $return = { 'COLLATE' => $item[2] } |
691 | } |
19c5bc53 |
692 | | WORD /\s*=\s*/ WORD |
693 | { |
694 | $return = { $item[1] => $item[3] }; |
695 | } |
bd30a9a2 |
696 | |
697 | default : /default/i |
16dc9970 |
698 | |
13aec984 |
699 | ADD : /add/i |
700 | |
701 | ALTER : /alter/i |
702 | |
40c1ade1 |
703 | CREATE : /create/i |
704 | |
705 | TEMPORARY : /temporary/i |
706 | |
707 | TABLE : /table/i |
708 | |
d529894e |
709 | WORD : /\w+/ |
16dc9970 |
710 | |
d529894e |
711 | DIGITS : /\d+/ |
16dc9970 |
712 | |
d529894e |
713 | COMMA : ',' |
16dc9970 |
714 | |
a7f49dfb |
715 | BACKTICK : '`' |
716 | |
717 | NAME : BACKTICK /\w+/ BACKTICK |
d529894e |
718 | { $item[2] } |
719 | | /\w+/ |
720 | { $item[1] } |
16dc9970 |
721 | |
d529894e |
722 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
723 | { $item[1] } |
f2cf1734 |
724 | | /'.*?'/ |
725 | { |
726 | # remove leading/trailing quotes |
727 | my $val = $item[1]; |
728 | $val =~ s/^['"]|['"]$//g; |
729 | $return = $val; |
730 | } |
d529894e |
731 | | /NULL/ |
732 | { 'NULL' } |
16dc9970 |
733 | |
bd30a9a2 |
734 | CURRENT_TIMESTAMP : /current_timestamp(\(\))?/i |
07d6e5f7 |
735 | | /now\(\)/i |
736 | { 'CURRENT_TIMESTAMP' } |
737 | |
9bf756df |
738 | END_OF_GRAMMAR |
16dc9970 |
739 | |
d529894e |
740 | # ------------------------------------------------------------------- |
741 | sub parse { |
70944bc5 |
742 | my ( $translator, $data ) = @_; |
40c1ade1 |
743 | my $parser = Parse::RecDescent->new($GRAMMAR); |
077ebf34 |
744 | |
e099bee9 |
745 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
746 | local $DEBUG = $translator->debug; |
d529894e |
747 | |
748 | unless (defined $parser) { |
749 | return $translator->error("Error instantiating Parse::RecDescent ". |
750 | "instance: Bad grammer"); |
751 | } |
d31c185b |
752 | |
753 | # Preprocess for MySQL-specific and not-before-version comments from mysqldump |
754 | my $parser_version = $translator->parser_args->{mysql_parser_version} || DEFAULT_PARSER_VERSION; |
755 | while ( $data =~ s#/\*!(\d{5})?(.*?)\*/#($1 && $1 > $parser_version ? '' : $2)#es ) {} |
d529894e |
756 | |
757 | my $result = $parser->startrule($data); |
40c1ade1 |
758 | return $translator->error( "Parse failed." ) unless defined $result; |
13aec984 |
759 | warn "Parse result:".Dumper( $result ) if $DEBUG; |
8ccdeb42 |
760 | |
70944bc5 |
761 | my $schema = $translator->schema; |
13aec984 |
762 | $schema->name($result->{'database_name'}) if $result->{'database_name'}; |
763 | |
034ecdec |
764 | my @tables = sort { |
13aec984 |
765 | $result->{'tables'}{ $a }{'order'} |
766 | <=> |
767 | $result->{'tables'}{ $b }{'order'} |
768 | } keys %{ $result->{'tables'} }; |
034ecdec |
769 | |
770 | for my $table_name ( @tables ) { |
13aec984 |
771 | my $tdata = $result->{tables}{ $table_name }; |
8ccdeb42 |
772 | my $table = $schema->add_table( |
773 | name => $tdata->{'table_name'}, |
40c1ade1 |
774 | ) or die $schema->error; |
8ccdeb42 |
775 | |
734dfc91 |
776 | $table->comments( $tdata->{'comments'} ); |
f2cf1734 |
777 | |
8ccdeb42 |
778 | my @fields = sort { |
779 | $tdata->{'fields'}->{$a}->{'order'} |
780 | <=> |
781 | $tdata->{'fields'}->{$b}->{'order'} |
782 | } keys %{ $tdata->{'fields'} }; |
783 | |
784 | for my $fname ( @fields ) { |
785 | my $fdata = $tdata->{'fields'}{ $fname }; |
786 | my $field = $table->add_field( |
787 | name => $fdata->{'name'}, |
788 | data_type => $fdata->{'data_type'}, |
789 | size => $fdata->{'size'}, |
790 | default_value => $fdata->{'default'}, |
791 | is_auto_increment => $fdata->{'is_auto_inc'}, |
792 | is_nullable => $fdata->{'null'}, |
88b89793 |
793 | comments => $fdata->{'comments'}, |
40c1ade1 |
794 | ) or die $table->error; |
f2cf1734 |
795 | |
796 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
797 | |
bd30a9a2 |
798 | for my $qual ( qw[ binary unsigned zerofill list collate ], |
07d6e5f7 |
799 | 'character set', 'on update' ) { |
f2cf1734 |
800 | if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) { |
801 | next if ref $val eq 'ARRAY' && !@$val; |
802 | $field->extra( $qual, $val ); |
803 | } |
804 | } |
805 | |
bd356af8 |
806 | if ( $fdata->{'has_index'} ) { |
807 | $table->add_index( |
808 | name => '', |
809 | type => 'NORMAL', |
810 | fields => $fdata->{'name'}, |
811 | ) or die $table->error; |
812 | } |
813 | |
814 | if ( $fdata->{'is_unique'} ) { |
815 | $table->add_constraint( |
816 | name => '', |
817 | type => 'UNIQUE', |
818 | fields => $fdata->{'name'}, |
819 | ) or die $table->error; |
820 | } |
821 | |
f2cf1734 |
822 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
823 | next unless $cdata->{'type'} eq 'foreign_key'; |
824 | $cdata->{'fields'} ||= [ $field->name ]; |
825 | push @{ $tdata->{'constraints'} }, $cdata; |
826 | } |
07d6e5f7 |
827 | |
f2cf1734 |
828 | } |
829 | |
830 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
831 | my $index = $table->add_index( |
832 | name => $idata->{'name'}, |
833 | type => uc $idata->{'type'}, |
834 | fields => $idata->{'fields'}, |
835 | ) or die $table->error; |
836 | } |
837 | |
02a21f1a |
838 | if ( my @options = @{ $tdata->{'table_options'} || [] } ) { |
839 | $table->options( \@options ) or die $table->error; |
840 | } |
841 | |
f2cf1734 |
842 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
843 | my $constraint = $table->add_constraint( |
844 | name => $cdata->{'name'}, |
845 | type => $cdata->{'type'}, |
846 | fields => $cdata->{'fields'}, |
847 | reference_table => $cdata->{'reference_table'}, |
848 | reference_fields => $cdata->{'reference_fields'}, |
849 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
850 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
851 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
f2cf1734 |
852 | ) or die $table->error; |
8ccdeb42 |
853 | } |
07d6e5f7 |
854 | |
855 | # After the constrains and PK/idxs have been created, we normalize fields |
856 | normalize_field($_) for $table->get_fields; |
8ccdeb42 |
857 | } |
d31c185b |
858 | |
859 | my @procedures = sort { |
860 | $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'} |
861 | } keys %{ $result->{procedures} }; |
862 | foreach my $proc_name (@procedures) { |
07d6e5f7 |
863 | $schema->add_procedure( |
864 | name => $proc_name, |
865 | owner => $result->{procedures}->{$proc_name}->{owner}, |
866 | sql => $result->{procedures}->{$proc_name}->{sql}, |
867 | ); |
d31c185b |
868 | } |
869 | |
870 | my @views = sort { |
871 | $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'} |
872 | } keys %{ $result->{views} }; |
873 | foreach my $view_name (keys %{ $result->{views} }) { |
07d6e5f7 |
874 | $schema->add_view( |
875 | name => $view_name, |
876 | sql => $result->{views}->{$view_name}->{sql}, |
877 | ); |
d31c185b |
878 | } |
8ccdeb42 |
879 | |
f62bd16c |
880 | return 1; |
d529894e |
881 | } |
882 | |
07d6e5f7 |
883 | # Takes a field, and returns |
884 | sub normalize_field { |
885 | my ($field) = @_; |
886 | my ($size, $type, $list, $changed) = @_; |
887 | |
888 | $size = $field->size; |
889 | $type = $field->data_type; |
890 | $list = $field->extra->{list} || []; |
891 | |
892 | if ( !ref $size && $size eq 0 ) { |
893 | if ( lc $type eq 'tinyint' ) { |
894 | $changed = $size != 4; |
895 | $size = 4; |
896 | } |
897 | elsif ( lc $type eq 'smallint' ) { |
898 | $changed = $size != 6; |
899 | $size = 6; |
900 | } |
901 | elsif ( lc $type eq 'mediumint' ) { |
902 | $changed = $size != 9; |
903 | $size = 9; |
904 | } |
905 | elsif ( $type =~ /^int(eger)?$/i ) { |
906 | $changed = $size != 11 || $type ne 'int'; |
907 | $type = 'int'; |
908 | $size = 11; |
909 | } |
910 | elsif ( lc $type eq 'bigint' ) { |
911 | $changed = $size != 20; |
912 | $size = 20; |
913 | } |
914 | elsif ( lc $type =~ /(float|double|decimal|numeric|real|fixed|dec)/ ) { |
915 | my $old_size = (ref $size || '') eq 'ARRAY' ? $size : []; |
54b6e490 |
916 | $changed = @$old_size != 2 || $old_size->[0] != 8 || $old_size->[1] != 2; |
07d6e5f7 |
917 | $size = [8,2]; |
918 | } |
919 | } |
920 | |
921 | if ( $type =~ /^tiny(text|blob)$/i ) { |
922 | $changed = $size != 255; |
923 | $size = 255; |
924 | } |
925 | elsif ( $type =~ /^(blob|text)$/i ) { |
926 | $changed = $size != 65_535; |
927 | $size = 65_535; |
928 | } |
929 | elsif ( $type =~ /^medium(blob|text)$/i ) { |
930 | $changed = $size != 16_777_215; |
931 | $size = 16_777_215; |
932 | } |
933 | elsif ( $type =~ /^long(blob|text)$/i ) { |
934 | $changed = $size != 4_294_967_295; |
935 | $size = 4_294_967_295; |
936 | } |
9ab59f87 |
937 | if ( $field->data_type =~ /(set|enum)/i && !$field->size ) { |
938 | my %extra = $field->extra; |
939 | my $longest = 0; |
940 | for my $len ( map { length } @{ $extra{'list'} || [] } ) { |
941 | $longest = $len if $len > $longest; |
942 | } |
943 | $changed = 1; |
944 | $size = $longest if $longest; |
945 | } |
946 | |
947 | |
07d6e5f7 |
948 | if ($changed) { |
949 | # We only want to clone the field, not *everything* |
950 | { local $field->{table} = undef; |
951 | $field->parsed_field(dclone($field)); |
952 | $field->parsed_field->{table} = $field->table; |
953 | } |
954 | $field->size($size); |
955 | $field->data_type($type); |
9ab59f87 |
956 | $field->sql_data_type( $type_mapping{lc $type} ) if exists $type_mapping{lc $type}; |
07d6e5f7 |
957 | $field->extra->{list} = $list if @$list; |
958 | } |
959 | } |
960 | |
6b2dbb1a |
961 | |
d529894e |
962 | 1; |
963 | |
034ecdec |
964 | # ------------------------------------------------------------------- |
d529894e |
965 | # Where man is not nature is barren. |
966 | # William Blake |
034ecdec |
967 | # ------------------------------------------------------------------- |
16dc9970 |
968 | |
d529894e |
969 | =pod |
16dc9970 |
970 | |
971 | =head1 AUTHOR |
972 | |
19c5bc53 |
973 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>, |
8ccdeb42 |
974 | Chris Mungall E<lt>cjm@fruitfly.orgE<gt>. |
16dc9970 |
975 | |
976 | =head1 SEE ALSO |
977 | |
19c5bc53 |
978 | Parse::RecDescent, SQL::Translator::Schema. |
16dc9970 |
979 | |
980 | =cut |