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1 | package SQL::Translator::Parser::MySQL; |
2 | |
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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 | |
5d666b31 |
137 | =head1 ARGUMENTS |
138 | |
139 | This parser takes a single optional parser_arg C<mysql_parser_version>, which |
140 | provides the desired version for the target database. Any statement in the processed |
141 | dump file, that is commented with a version higher than the one supplied, will be stripped. |
142 | |
143 | Valid version specifiers for C<mysql_parser_version> are listed L<here|SQL::Translator::Utils/parse_mysql_version> |
144 | |
145 | More information about the MySQL comment-syntax: L<http://dev.mysql.com/doc/refman/5.0/en/comments.html> |
146 | |
147 | |
d529894e |
148 | =cut |
149 | |
16dc9970 |
150 | use strict; |
d529894e |
151 | use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; |
d31c185b |
152 | $VERSION = sprintf "%d.%02d", q$Revision: 1.58 $ =~ /(\d+)\.(\d+)/; |
8d0f3086 |
153 | $DEBUG = 0 unless defined $DEBUG; |
077ebf34 |
154 | |
d529894e |
155 | use Data::Dumper; |
077ebf34 |
156 | use Parse::RecDescent; |
157 | use Exporter; |
07d6e5f7 |
158 | use Storable qw(dclone); |
6b2dbb1a |
159 | use DBI qw(:sql_types); |
077ebf34 |
160 | use base qw(Exporter); |
161 | |
5d666b31 |
162 | use SQL::Translator::Utils qw/parse_mysql_version/; |
163 | |
6b2dbb1a |
164 | our %type_mapping = ( |
6b2dbb1a |
165 | ); |
166 | |
077ebf34 |
167 | @EXPORT_OK = qw(parse); |
168 | |
d529894e |
169 | # Enable warnings within the Parse::RecDescent module. |
170 | $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error |
171 | $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c. |
172 | $::RD_HINT = 1; # Give out hints to help fix problems. |
173 | |
d31c185b |
174 | use constant DEFAULT_PARSER_VERSION => 30000; |
175 | |
9bf756df |
176 | $GRAMMAR = << 'END_OF_GRAMMAR'; |
d529894e |
177 | |
8ccdeb42 |
178 | { |
d31c185b |
179 | my ( $database_name, %tables, $table_order, @table_comments, %views, $view_order, %procedures, $proc_order ); |
86318717 |
180 | my $delimiter = ';'; |
8ccdeb42 |
181 | } |
d529894e |
182 | |
629b76f9 |
183 | # |
184 | # The "eofile" rule makes the parser fail if any "statement" rule |
185 | # fails. Otherwise, the first successful match by a "statement" |
186 | # won't cause the failure needed to know that the parse, as a whole, |
187 | # failed. -ky |
188 | # |
13aec984 |
189 | startrule : statement(s) eofile { |
d31c185b |
190 | { tables => \%tables, database_name => $database_name, views => \%views, procedures =>\%procedures } |
13aec984 |
191 | } |
629b76f9 |
192 | |
193 | eofile : /^\Z/ |
d529894e |
194 | |
195 | statement : comment |
dcb4fa06 |
196 | | use |
33d0d6d4 |
197 | | set |
61745327 |
198 | | drop |
d529894e |
199 | | create |
13aec984 |
200 | | alter |
201 | | insert |
86318717 |
202 | | delimiter |
203 | | empty_statement |
d529894e |
204 | | <error> |
205 | |
86318717 |
206 | use : /use/i WORD "$delimiter" |
13aec984 |
207 | { |
208 | $database_name = $item[2]; |
209 | @table_comments = (); |
210 | } |
dcb4fa06 |
211 | |
86318717 |
212 | set : /set/i /[^;]+/ "$delimiter" |
c5dabd71 |
213 | { @table_comments = () } |
734dfc91 |
214 | |
86318717 |
215 | drop : /drop/i TABLE /[^;]+/ "$delimiter" |
33d0d6d4 |
216 | |
86318717 |
217 | drop : /drop/i WORD(s) "$delimiter" |
c5dabd71 |
218 | { @table_comments = () } |
61745327 |
219 | |
9bf756df |
220 | string : |
221 | # MySQL strings, unlike common SQL strings, can be double-quoted or |
222 | # single-quoted, and you can escape the delmiters by doubling (but only the |
223 | # delimiter) or by backslashing. |
224 | |
225 | /'(\\.|''|[^\\\'])*'/ | |
226 | /"(\\.|""|[^\\\"])*"/ |
227 | # For reference, std sql str: /(?:(?:\')(?:[^\']*(?:(?:\'\')[^\']*)*)(?:\'))// |
228 | |
229 | nonstring : /[^;\'"]+/ |
230 | |
231 | statement_body : (string | nonstring)(s?) |
232 | |
86318717 |
233 | insert : /insert/i statement_body "$delimiter" |
13aec984 |
234 | |
86318717 |
235 | delimiter : /delimiter/i /[\S]+/ |
07d6e5f7 |
236 | { $delimiter = $item[2] } |
86318717 |
237 | |
238 | empty_statement : "$delimiter" |
239 | |
240 | alter : ALTER TABLE table_name alter_specification(s /,/) "$delimiter" |
13aec984 |
241 | { |
242 | my $table_name = $item{'table_name'}; |
243 | die "Cannot ALTER table '$table_name'; it does not exist" |
244 | unless $tables{ $table_name }; |
245 | for my $definition ( @{ $item[4] } ) { |
246 | $definition->{'extra'}->{'alter'} = 1; |
247 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
248 | } |
249 | } |
250 | |
251 | alter_specification : ADD foreign_key_def |
252 | { $return = $item[2] } |
253 | |
86318717 |
254 | create : CREATE /database/i WORD "$delimiter" |
c5dabd71 |
255 | { @table_comments = () } |
dcb4fa06 |
256 | |
86318717 |
257 | create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) /(,\s*)?\)/ table_option(s?) "$delimiter" |
d529894e |
258 | { |
259 | my $table_name = $item{'table_name'}; |
260 | $tables{ $table_name }{'order'} = ++$table_order; |
261 | $tables{ $table_name }{'table_name'} = $table_name; |
262 | |
734dfc91 |
263 | if ( @table_comments ) { |
264 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
265 | @table_comments = (); |
266 | } |
267 | |
61745327 |
268 | my $i = 1; |
40c1ade1 |
269 | for my $definition ( @{ $item[7] } ) { |
f2cf1734 |
270 | if ( $definition->{'supertype'} eq 'field' ) { |
d529894e |
271 | my $field_name = $definition->{'name'}; |
272 | $tables{ $table_name }{'fields'}{ $field_name } = |
273 | { %$definition, order => $i }; |
274 | $i++; |
275 | |
276 | if ( $definition->{'is_primary_key'} ) { |
f2cf1734 |
277 | push @{ $tables{ $table_name }{'constraints'} }, |
d529894e |
278 | { |
279 | type => 'primary_key', |
280 | fields => [ $field_name ], |
16dc9970 |
281 | } |
d529894e |
282 | ; |
283 | } |
dd2ef5ae |
284 | } |
f2cf1734 |
285 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
f2cf1734 |
286 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
40c1ade1 |
287 | } |
f2cf1734 |
288 | elsif ( $definition->{'supertype'} eq 'index' ) { |
734dfc91 |
289 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
dd2ef5ae |
290 | } |
d529894e |
291 | } |
dd2ef5ae |
292 | |
02a21f1a |
293 | if ( my @options = @{ $item{'table_option(s?)'} } ) { |
35843e6b |
294 | for my $option ( @options ) { |
295 | my ( $key, $value ) = each %$option; |
296 | if ( $key eq 'comment' ) { |
297 | push @{ $tables{ $table_name }{'comments'} }, $value; |
298 | } |
299 | else { |
300 | push @{ $tables{ $table_name }{'table_options'} }, $option; |
301 | } |
302 | } |
d529894e |
303 | } |
58a88238 |
304 | |
305 | 1; |
d529894e |
306 | } |
dd2ef5ae |
307 | |
40c1ade1 |
308 | opt_if_not_exists : /if not exists/i |
309 | |
86318717 |
310 | create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' "$delimiter" |
d529894e |
311 | { |
734dfc91 |
312 | @table_comments = (); |
d529894e |
313 | push @{ $tables{ $item{'table_name'} }{'indices'} }, |
314 | { |
315 | name => $item[4], |
041e659f |
316 | type => $item[2][0] ? 'unique' : 'normal', |
d529894e |
317 | fields => $item[8], |
dd2ef5ae |
318 | } |
d529894e |
319 | ; |
320 | } |
dd2ef5ae |
321 | |
d31c185b |
322 | create : CREATE /trigger/i NAME not_delimiter "$delimiter" |
07d6e5f7 |
323 | { |
324 | @table_comments = (); |
325 | } |
d31c185b |
326 | |
327 | create : CREATE PROCEDURE NAME not_delimiter "$delimiter" |
07d6e5f7 |
328 | { |
329 | @table_comments = (); |
d31c185b |
330 | my $func_name = $item[3]; |
331 | my $owner = ''; |
332 | my $sql = "$item[1] $item[2] $item[3] $item[4]"; |
333 | |
334 | $procedures{ $func_name }{'order'} = ++$proc_order; |
335 | $procedures{ $func_name }{'name'} = $func_name; |
336 | $procedures{ $func_name }{'owner'} = $owner; |
337 | $procedures{ $func_name }{'sql'} = $sql; |
07d6e5f7 |
338 | } |
d31c185b |
339 | |
340 | PROCEDURE : /procedure/i |
07d6e5f7 |
341 | | /function/i |
d31c185b |
342 | |
343 | create : CREATE algorithm /view/i NAME not_delimiter "$delimiter" |
07d6e5f7 |
344 | { |
345 | @table_comments = (); |
d31c185b |
346 | my $view_name = $item[4]; |
347 | my $sql = "$item[1] $item[2] $item[3] $item[4] $item[5]"; |
348 | |
349 | # Hack to strip database from function calls in SQL |
350 | $sql =~ s#`\w+`\.(`\w+`\()##g; |
351 | |
352 | $views{ $view_name }{'order'} = ++$view_order; |
353 | $views{ $view_name }{'name'} = $view_name; |
354 | $views{ $view_name }{'sql'} = $sql; |
07d6e5f7 |
355 | } |
d31c185b |
356 | |
357 | algorithm : /algorithm/i /=/ WORD |
07d6e5f7 |
358 | { |
359 | $return = "$item[1]=$item[3]"; |
360 | } |
d31c185b |
361 | |
362 | not_delimiter : /.*?(?=$delimiter)/is |
363 | |
f2cf1734 |
364 | create_definition : constraint |
365 | | index |
d529894e |
366 | | field |
02a21f1a |
367 | | comment |
d529894e |
368 | | <error> |
369 | |
734dfc91 |
370 | comment : /^\s*(?:#|-{2}).*\n/ |
371 | { |
372 | my $comment = $item[1]; |
a82fa2cb |
373 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
374 | $comment =~ s/\s*$//; |
375 | $return = $comment; |
734dfc91 |
376 | } |
377 | |
da9f2af8 |
378 | comment : /\/\*/ /.*?\*\//s |
e78d62f2 |
379 | { |
380 | my $comment = $item[2]; |
73212389 |
381 | $comment = substr($comment, 0, -2); |
e78d62f2 |
382 | $comment =~ s/^\s*|\s*$//g; |
383 | $return = $comment; |
384 | } |
86318717 |
385 | |
734dfc91 |
386 | field_comment : /^\s*(?:#|-{2}).*\n/ |
387 | { |
388 | my $comment = $item[1]; |
a82fa2cb |
389 | $comment =~ s/^\s*(#|--)\s*//; |
734dfc91 |
390 | $comment =~ s/\s*$//; |
391 | $return = $comment; |
392 | } |
d529894e |
393 | |
35843e6b |
394 | |
395 | field_comment2 : /comment/i /'.*?'/ |
396 | { |
397 | my $comment = $item[2]; |
398 | $comment =~ s/^'//; |
399 | $comment =~ s/'$//; |
400 | $return = $comment; |
401 | } |
402 | |
d529894e |
403 | blank : /\s*/ |
404 | |
100684f3 |
405 | field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?) |
d529894e |
406 | { |
734dfc91 |
407 | my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] }; |
d529894e |
408 | if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) { |
409 | $qualifiers{ $_ } = 1 for @type_quals; |
410 | } |
411 | |
c5dabd71 |
412 | my $null = defined $qualifiers{'not_null'} |
413 | ? $qualifiers{'not_null'} : 1; |
414 | delete $qualifiers{'not_null'}; |
415 | |
35843e6b |
416 | my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } ); |
88b89793 |
417 | |
d529894e |
418 | $return = { |
f2cf1734 |
419 | supertype => 'field', |
420 | name => $item{'field_name'}, |
421 | data_type => $item{'data_type'}{'type'}, |
422 | size => $item{'data_type'}{'size'}, |
423 | list => $item{'data_type'}{'list'}, |
424 | null => $null, |
425 | constraints => $item{'reference_definition(?)'}, |
88b89793 |
426 | comments => [ @comments ], |
d529894e |
427 | %qualifiers, |
428 | } |
429 | } |
430 | | <error> |
dd2ef5ae |
431 | |
d529894e |
432 | field_qualifier : not_null |
433 | { |
434 | $return = { |
435 | null => $item{'not_null'}, |
436 | } |
437 | } |
16dc9970 |
438 | |
d529894e |
439 | field_qualifier : default_val |
440 | { |
441 | $return = { |
442 | default => $item{'default_val'}, |
443 | } |
444 | } |
16dc9970 |
445 | |
d529894e |
446 | field_qualifier : auto_inc |
447 | { |
448 | $return = { |
449 | is_auto_inc => $item{'auto_inc'}, |
450 | } |
451 | } |
16dc9970 |
452 | |
d529894e |
453 | field_qualifier : primary_key |
454 | { |
455 | $return = { |
456 | is_primary_key => $item{'primary_key'}, |
457 | } |
458 | } |
16dc9970 |
459 | |
d529894e |
460 | field_qualifier : unsigned |
461 | { |
462 | $return = { |
463 | is_unsigned => $item{'unsigned'}, |
464 | } |
465 | } |
16dc9970 |
466 | |
19c5bc53 |
467 | field_qualifier : /character set/i WORD |
095b4549 |
468 | { |
469 | $return = { |
bd30a9a2 |
470 | 'CHARACTER SET' => $item[2], |
471 | } |
472 | } |
473 | |
474 | field_qualifier : /collate/i WORD |
475 | { |
476 | $return = { |
477 | COLLATE => $item[2], |
478 | } |
479 | } |
480 | |
481 | field_qualifier : /on update/i CURRENT_TIMESTAMP |
482 | { |
483 | $return = { |
484 | 'ON UPDATE' => $item[2], |
095b4549 |
485 | } |
486 | } |
487 | |
bd356af8 |
488 | field_qualifier : /unique/i KEY(?) |
489 | { |
490 | $return = { |
491 | is_unique => 1, |
492 | } |
493 | } |
494 | |
495 | field_qualifier : KEY |
496 | { |
497 | $return = { |
498 | has_index => 1, |
499 | } |
500 | } |
501 | |
100684f3 |
502 | reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?) |
658637cd |
503 | { |
40c1ade1 |
504 | $return = { |
658637cd |
505 | type => 'foreign_key', |
506 | reference_table => $item[2], |
507 | reference_fields => $item[3][0], |
508 | match_type => $item[4][0], |
100684f3 |
509 | on_delete => $item[5][0], |
510 | on_update => $item[6][0], |
658637cd |
511 | } |
512 | } |
513 | |
02a21f1a |
514 | match_type : /match full/i { 'full' } |
658637cd |
515 | | |
02a21f1a |
516 | /match partial/i { 'partial' } |
658637cd |
517 | |
100684f3 |
518 | on_delete : /on delete/i reference_option |
658637cd |
519 | { $item[2] } |
520 | |
100684f3 |
521 | on_update : |
6fa97af6 |
522 | /on update/i 'CURRENT_TIMESTAMP' |
523 | { $item[2] } |
524 | | |
525 | /on update/i reference_option |
658637cd |
526 | { $item[2] } |
527 | |
528 | reference_option: /restrict/i | |
529 | /cascade/i | |
530 | /set null/i | |
531 | /no action/i | |
532 | /set default/i |
533 | { $item[1] } |
534 | |
f2cf1734 |
535 | index : normal_index |
371f5f88 |
536 | | fulltext_index |
58a88238 |
537 | | <error> |
d529894e |
538 | |
0d41bc9b |
539 | table_name : NAME |
d529894e |
540 | |
0d41bc9b |
541 | field_name : NAME |
d529894e |
542 | |
02a21f1a |
543 | index_name : NAME |
d529894e |
544 | |
545 | data_type : WORD parens_value_list(s?) type_qualifier(s?) |
546 | { |
547 | my $type = $item[1]; |
548 | my $size; # field size, applicable only to non-set fields |
549 | my $list; # set list, applicable only to sets (duh) |
550 | |
44fcd0b5 |
551 | if ( uc($type) =~ /^(SET|ENUM)$/ ) { |
d529894e |
552 | $size = undef; |
553 | $list = $item[2][0]; |
554 | } |
555 | else { |
556 | $size = $item[2][0]; |
557 | $list = []; |
558 | } |
559 | |
256d534a |
560 | |
d529894e |
561 | $return = { |
562 | type => $type, |
563 | size => $size, |
564 | list => $list, |
565 | qualifiers => $item[3], |
566 | } |
567 | } |
16dc9970 |
568 | |
658637cd |
569 | parens_field_list : '(' field_name(s /,/) ')' |
570 | { $item[2] } |
571 | |
d529894e |
572 | parens_value_list : '(' VALUE(s /,/) ')' |
573 | { $item[2] } |
16dc9970 |
574 | |
d529894e |
575 | type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i |
576 | { lc $item[1] } |
16dc9970 |
577 | |
d529894e |
578 | field_type : WORD |
16dc9970 |
579 | |
d529894e |
580 | create_index : /create/i /index/i |
dd2ef5ae |
581 | |
e78d62f2 |
582 | not_null : /not/i /null/i |
583 | { $return = 0 } |
584 | | |
585 | /null/i |
586 | { $return = 1 } |
16dc9970 |
587 | |
d529894e |
588 | unsigned : /unsigned/i { $return = 0 } |
16dc9970 |
589 | |
09fa21a6 |
590 | #default_val : /default/i /(?:')?[\s\w\d:.-]*(?:')?/ |
591 | # { |
592 | # $item[2] =~ s/'//g; |
593 | # $return = $item[2]; |
594 | # } |
595 | |
6fa97af6 |
596 | default_val : |
597 | /default/i 'CURRENT_TIMESTAMP' |
598 | { |
599 | $return = $item[2]; |
600 | } |
601 | | |
602 | /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/ |
09fa21a6 |
603 | { |
604 | $item[2] =~ s/^\s*'|'\s*$//g; |
d529894e |
605 | $return = $item[2]; |
606 | } |
16dc9970 |
607 | |
d529894e |
608 | auto_inc : /auto_increment/i { 1 } |
16dc9970 |
609 | |
d529894e |
610 | primary_key : /primary/i /key/i { 1 } |
16dc9970 |
611 | |
f2cf1734 |
612 | constraint : primary_key_def |
613 | | unique_key_def |
614 | | foreign_key_def |
615 | | <error> |
616 | |
02a21f1a |
617 | foreign_key_def : foreign_key_def_begin parens_field_list reference_definition |
40c1ade1 |
618 | { |
619 | $return = { |
f2cf1734 |
620 | supertype => 'constraint', |
40c1ade1 |
621 | type => 'foreign_key', |
02a21f1a |
622 | name => $item[1], |
09fa21a6 |
623 | fields => $item[2], |
40c1ade1 |
624 | %{ $item{'reference_definition'} }, |
625 | } |
626 | } |
627 | |
e78d62f2 |
628 | foreign_key_def_begin : /constraint/i /foreign key/i WORD |
629 | { $return = $item[3] } |
630 | | |
631 | /constraint/i NAME /foreign key/i |
632 | { $return = $item[2] } |
633 | | |
634 | /constraint/i /foreign key/i |
02a21f1a |
635 | { $return = '' } |
636 | | |
e78d62f2 |
637 | /foreign key/i WORD |
02a21f1a |
638 | { $return = $item[2] } |
639 | | |
640 | /foreign key/i |
641 | { $return = '' } |
40c1ade1 |
642 | |
1853ba82 |
643 | primary_key_def : primary_key index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
644 | { |
f2cf1734 |
645 | $return = { |
646 | supertype => 'constraint', |
647 | name => $item{'index_name(?)'}[0], |
648 | type => 'primary_key', |
649 | fields => $item[4], |
58a88238 |
650 | }; |
d529894e |
651 | } |
16dc9970 |
652 | |
f2cf1734 |
653 | unique_key_def : UNIQUE KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
654 | { |
f2cf1734 |
655 | $return = { |
656 | supertype => 'constraint', |
657 | name => $item{'index_name(?)'}[0], |
658 | type => 'unique', |
659 | fields => $item[5], |
d529894e |
660 | } |
661 | } |
16dc9970 |
662 | |
f2cf1734 |
663 | normal_index : KEY index_name(?) '(' name_with_opt_paren(s /,/) ')' |
d529894e |
664 | { |
f2cf1734 |
665 | $return = { |
666 | supertype => 'index', |
667 | type => 'normal', |
668 | name => $item{'index_name(?)'}[0], |
669 | fields => $item[4], |
d529894e |
670 | } |
671 | } |
16dc9970 |
672 | |
f2cf1734 |
673 | fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')' |
371f5f88 |
674 | { |
f2cf1734 |
675 | $return = { |
676 | supertype => 'index', |
677 | type => 'fulltext', |
678 | name => $item{'index_name(?)'}[0], |
679 | fields => $item[5], |
371f5f88 |
680 | } |
681 | } |
682 | |
d529894e |
683 | name_with_opt_paren : NAME parens_value_list(s?) |
684 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
16dc9970 |
685 | |
041e659f |
686 | UNIQUE : /unique/i |
16dc9970 |
687 | |
f2cf1734 |
688 | KEY : /key/i | /index/i |
16dc9970 |
689 | |
19c5bc53 |
690 | table_option : /comment/i /=/ /'.*?'/ |
35843e6b |
691 | { |
692 | my $comment = $item[3]; |
693 | $comment =~ s/^'//; |
694 | $comment =~ s/'$//; |
695 | $return = { comment => $comment }; |
696 | } |
bb4c66d1 |
697 | | /(default )?(charset|character set)/i /\s*=?\s*/ WORD |
d529894e |
698 | { |
bd30a9a2 |
699 | $return = { 'CHARACTER SET' => $item[3] }; |
d529894e |
700 | } |
a7f49dfb |
701 | | /collate/i WORD |
702 | { |
703 | $return = { 'COLLATE' => $item[2] } |
704 | } |
19c5bc53 |
705 | | WORD /\s*=\s*/ WORD |
706 | { |
707 | $return = { $item[1] => $item[3] }; |
708 | } |
bd30a9a2 |
709 | |
710 | default : /default/i |
16dc9970 |
711 | |
13aec984 |
712 | ADD : /add/i |
713 | |
714 | ALTER : /alter/i |
715 | |
40c1ade1 |
716 | CREATE : /create/i |
717 | |
718 | TEMPORARY : /temporary/i |
719 | |
720 | TABLE : /table/i |
721 | |
d529894e |
722 | WORD : /\w+/ |
16dc9970 |
723 | |
d529894e |
724 | DIGITS : /\d+/ |
16dc9970 |
725 | |
d529894e |
726 | COMMA : ',' |
16dc9970 |
727 | |
a7f49dfb |
728 | BACKTICK : '`' |
729 | |
730 | NAME : BACKTICK /\w+/ BACKTICK |
d529894e |
731 | { $item[2] } |
732 | | /\w+/ |
733 | { $item[1] } |
16dc9970 |
734 | |
d529894e |
735 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
736 | { $item[1] } |
f2cf1734 |
737 | | /'.*?'/ |
738 | { |
739 | # remove leading/trailing quotes |
740 | my $val = $item[1]; |
741 | $val =~ s/^['"]|['"]$//g; |
742 | $return = $val; |
743 | } |
d529894e |
744 | | /NULL/ |
745 | { 'NULL' } |
16dc9970 |
746 | |
bd30a9a2 |
747 | CURRENT_TIMESTAMP : /current_timestamp(\(\))?/i |
07d6e5f7 |
748 | | /now\(\)/i |
749 | { 'CURRENT_TIMESTAMP' } |
750 | |
9bf756df |
751 | END_OF_GRAMMAR |
16dc9970 |
752 | |
d529894e |
753 | # ------------------------------------------------------------------- |
754 | sub parse { |
70944bc5 |
755 | my ( $translator, $data ) = @_; |
40c1ade1 |
756 | my $parser = Parse::RecDescent->new($GRAMMAR); |
077ebf34 |
757 | |
e099bee9 |
758 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
759 | local $DEBUG = $translator->debug; |
d529894e |
760 | |
761 | unless (defined $parser) { |
762 | return $translator->error("Error instantiating Parse::RecDescent ". |
763 | "instance: Bad grammer"); |
764 | } |
d31c185b |
765 | |
766 | # Preprocess for MySQL-specific and not-before-version comments from mysqldump |
5d666b31 |
767 | my $parser_version = |
768 | parse_mysql_version ($translator->parser_args->{mysql_parser_version}, 'mysql') |
769 | || DEFAULT_PARSER_VERSION; |
d31c185b |
770 | while ( $data =~ s#/\*!(\d{5})?(.*?)\*/#($1 && $1 > $parser_version ? '' : $2)#es ) {} |
d529894e |
771 | |
772 | my $result = $parser->startrule($data); |
40c1ade1 |
773 | return $translator->error( "Parse failed." ) unless defined $result; |
13aec984 |
774 | warn "Parse result:".Dumper( $result ) if $DEBUG; |
8ccdeb42 |
775 | |
70944bc5 |
776 | my $schema = $translator->schema; |
13aec984 |
777 | $schema->name($result->{'database_name'}) if $result->{'database_name'}; |
778 | |
034ecdec |
779 | my @tables = sort { |
13aec984 |
780 | $result->{'tables'}{ $a }{'order'} |
781 | <=> |
782 | $result->{'tables'}{ $b }{'order'} |
783 | } keys %{ $result->{'tables'} }; |
034ecdec |
784 | |
785 | for my $table_name ( @tables ) { |
13aec984 |
786 | my $tdata = $result->{tables}{ $table_name }; |
8ccdeb42 |
787 | my $table = $schema->add_table( |
788 | name => $tdata->{'table_name'}, |
40c1ade1 |
789 | ) or die $schema->error; |
8ccdeb42 |
790 | |
734dfc91 |
791 | $table->comments( $tdata->{'comments'} ); |
f2cf1734 |
792 | |
8ccdeb42 |
793 | my @fields = sort { |
794 | $tdata->{'fields'}->{$a}->{'order'} |
795 | <=> |
796 | $tdata->{'fields'}->{$b}->{'order'} |
797 | } keys %{ $tdata->{'fields'} }; |
798 | |
799 | for my $fname ( @fields ) { |
800 | my $fdata = $tdata->{'fields'}{ $fname }; |
801 | my $field = $table->add_field( |
802 | name => $fdata->{'name'}, |
803 | data_type => $fdata->{'data_type'}, |
804 | size => $fdata->{'size'}, |
805 | default_value => $fdata->{'default'}, |
806 | is_auto_increment => $fdata->{'is_auto_inc'}, |
807 | is_nullable => $fdata->{'null'}, |
88b89793 |
808 | comments => $fdata->{'comments'}, |
40c1ade1 |
809 | ) or die $table->error; |
f2cf1734 |
810 | |
811 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
812 | |
bd30a9a2 |
813 | for my $qual ( qw[ binary unsigned zerofill list collate ], |
07d6e5f7 |
814 | 'character set', 'on update' ) { |
f2cf1734 |
815 | if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) { |
816 | next if ref $val eq 'ARRAY' && !@$val; |
817 | $field->extra( $qual, $val ); |
818 | } |
819 | } |
820 | |
bd356af8 |
821 | if ( $fdata->{'has_index'} ) { |
822 | $table->add_index( |
823 | name => '', |
824 | type => 'NORMAL', |
825 | fields => $fdata->{'name'}, |
826 | ) or die $table->error; |
827 | } |
828 | |
829 | if ( $fdata->{'is_unique'} ) { |
830 | $table->add_constraint( |
831 | name => '', |
832 | type => 'UNIQUE', |
833 | fields => $fdata->{'name'}, |
834 | ) or die $table->error; |
835 | } |
836 | |
f2cf1734 |
837 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
838 | next unless $cdata->{'type'} eq 'foreign_key'; |
839 | $cdata->{'fields'} ||= [ $field->name ]; |
840 | push @{ $tdata->{'constraints'} }, $cdata; |
841 | } |
07d6e5f7 |
842 | |
f2cf1734 |
843 | } |
844 | |
845 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
846 | my $index = $table->add_index( |
847 | name => $idata->{'name'}, |
848 | type => uc $idata->{'type'}, |
849 | fields => $idata->{'fields'}, |
850 | ) or die $table->error; |
851 | } |
852 | |
02a21f1a |
853 | if ( my @options = @{ $tdata->{'table_options'} || [] } ) { |
854 | $table->options( \@options ) or die $table->error; |
855 | } |
856 | |
f2cf1734 |
857 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
858 | my $constraint = $table->add_constraint( |
859 | name => $cdata->{'name'}, |
860 | type => $cdata->{'type'}, |
861 | fields => $cdata->{'fields'}, |
862 | reference_table => $cdata->{'reference_table'}, |
863 | reference_fields => $cdata->{'reference_fields'}, |
864 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
865 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
866 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
f2cf1734 |
867 | ) or die $table->error; |
8ccdeb42 |
868 | } |
07d6e5f7 |
869 | |
870 | # After the constrains and PK/idxs have been created, we normalize fields |
871 | normalize_field($_) for $table->get_fields; |
8ccdeb42 |
872 | } |
d31c185b |
873 | |
874 | my @procedures = sort { |
875 | $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'} |
876 | } keys %{ $result->{procedures} }; |
877 | foreach my $proc_name (@procedures) { |
07d6e5f7 |
878 | $schema->add_procedure( |
879 | name => $proc_name, |
880 | owner => $result->{procedures}->{$proc_name}->{owner}, |
881 | sql => $result->{procedures}->{$proc_name}->{sql}, |
882 | ); |
d31c185b |
883 | } |
884 | |
885 | my @views = sort { |
886 | $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'} |
887 | } keys %{ $result->{views} }; |
888 | foreach my $view_name (keys %{ $result->{views} }) { |
07d6e5f7 |
889 | $schema->add_view( |
890 | name => $view_name, |
891 | sql => $result->{views}->{$view_name}->{sql}, |
892 | ); |
d31c185b |
893 | } |
8ccdeb42 |
894 | |
f62bd16c |
895 | return 1; |
d529894e |
896 | } |
897 | |
07d6e5f7 |
898 | # Takes a field, and returns |
899 | sub normalize_field { |
900 | my ($field) = @_; |
901 | my ($size, $type, $list, $changed) = @_; |
902 | |
903 | $size = $field->size; |
904 | $type = $field->data_type; |
905 | $list = $field->extra->{list} || []; |
906 | |
907 | if ( !ref $size && $size eq 0 ) { |
908 | if ( lc $type eq 'tinyint' ) { |
909 | $changed = $size != 4; |
910 | $size = 4; |
911 | } |
912 | elsif ( lc $type eq 'smallint' ) { |
913 | $changed = $size != 6; |
914 | $size = 6; |
915 | } |
916 | elsif ( lc $type eq 'mediumint' ) { |
917 | $changed = $size != 9; |
918 | $size = 9; |
919 | } |
920 | elsif ( $type =~ /^int(eger)?$/i ) { |
921 | $changed = $size != 11 || $type ne 'int'; |
922 | $type = 'int'; |
923 | $size = 11; |
924 | } |
925 | elsif ( lc $type eq 'bigint' ) { |
926 | $changed = $size != 20; |
927 | $size = 20; |
928 | } |
929 | elsif ( lc $type =~ /(float|double|decimal|numeric|real|fixed|dec)/ ) { |
930 | my $old_size = (ref $size || '') eq 'ARRAY' ? $size : []; |
54b6e490 |
931 | $changed = @$old_size != 2 || $old_size->[0] != 8 || $old_size->[1] != 2; |
07d6e5f7 |
932 | $size = [8,2]; |
933 | } |
934 | } |
935 | |
936 | if ( $type =~ /^tiny(text|blob)$/i ) { |
937 | $changed = $size != 255; |
938 | $size = 255; |
939 | } |
940 | elsif ( $type =~ /^(blob|text)$/i ) { |
941 | $changed = $size != 65_535; |
942 | $size = 65_535; |
943 | } |
944 | elsif ( $type =~ /^medium(blob|text)$/i ) { |
945 | $changed = $size != 16_777_215; |
946 | $size = 16_777_215; |
947 | } |
948 | elsif ( $type =~ /^long(blob|text)$/i ) { |
949 | $changed = $size != 4_294_967_295; |
950 | $size = 4_294_967_295; |
951 | } |
9ab59f87 |
952 | if ( $field->data_type =~ /(set|enum)/i && !$field->size ) { |
953 | my %extra = $field->extra; |
954 | my $longest = 0; |
955 | for my $len ( map { length } @{ $extra{'list'} || [] } ) { |
956 | $longest = $len if $len > $longest; |
957 | } |
958 | $changed = 1; |
959 | $size = $longest if $longest; |
960 | } |
961 | |
962 | |
07d6e5f7 |
963 | if ($changed) { |
964 | # We only want to clone the field, not *everything* |
965 | { local $field->{table} = undef; |
966 | $field->parsed_field(dclone($field)); |
967 | $field->parsed_field->{table} = $field->table; |
968 | } |
969 | $field->size($size); |
970 | $field->data_type($type); |
9ab59f87 |
971 | $field->sql_data_type( $type_mapping{lc $type} ) if exists $type_mapping{lc $type}; |
07d6e5f7 |
972 | $field->extra->{list} = $list if @$list; |
973 | } |
974 | } |
975 | |
6b2dbb1a |
976 | |
d529894e |
977 | 1; |
978 | |
034ecdec |
979 | # ------------------------------------------------------------------- |
d529894e |
980 | # Where man is not nature is barren. |
981 | # William Blake |
034ecdec |
982 | # ------------------------------------------------------------------- |
16dc9970 |
983 | |
d529894e |
984 | =pod |
16dc9970 |
985 | |
986 | =head1 AUTHOR |
987 | |
19c5bc53 |
988 | Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>, |
8ccdeb42 |
989 | Chris Mungall E<lt>cjm@fruitfly.orgE<gt>. |
16dc9970 |
990 | |
991 | =head1 SEE ALSO |
992 | |
19c5bc53 |
993 | Parse::RecDescent, SQL::Translator::Schema. |
16dc9970 |
994 | |
995 | =cut |