Commit | Line | Data |
a89c6fc0 |
1 | package # Hide from PAUSE |
2 | DBIx::Class::Version::Table; |
d88ecca6 |
3 | use base 'DBIx::Class::Core'; |
c9d2e0a2 |
4 | use strict; |
5 | use warnings; |
6 | |
b4b1e91c |
7 | __PACKAGE__->table('dbix_class_schema_versions'); |
c9d2e0a2 |
8 | |
ad1446da |
9 | __PACKAGE__->add_columns |
732dc718 |
10 | ( 'version' => { |
ad1446da |
11 | 'data_type' => 'VARCHAR', |
12 | 'is_auto_increment' => 0, |
13 | 'default_value' => undef, |
14 | 'is_foreign_key' => 0, |
732dc718 |
15 | 'name' => 'version', |
ad1446da |
16 | 'is_nullable' => 0, |
17 | 'size' => '10' |
18 | }, |
732dc718 |
19 | 'installed' => { |
c9d2e0a2 |
20 | 'data_type' => 'VARCHAR', |
21 | 'is_auto_increment' => 0, |
22 | 'default_value' => undef, |
23 | 'is_foreign_key' => 0, |
732dc718 |
24 | 'name' => 'installed', |
c9d2e0a2 |
25 | 'is_nullable' => 0, |
26 | 'size' => '20' |
ad1446da |
27 | }, |
28 | ); |
732dc718 |
29 | __PACKAGE__->set_primary_key('version'); |
c9d2e0a2 |
30 | |
a89c6fc0 |
31 | package # Hide from PAUSE |
32 | DBIx::Class::Version::TableCompat; |
d88ecca6 |
33 | use base 'DBIx::Class::Core'; |
b4b1e91c |
34 | __PACKAGE__->table('SchemaVersions'); |
35 | |
732dc718 |
36 | __PACKAGE__->add_columns |
37 | ( 'Version' => { |
38 | 'data_type' => 'VARCHAR', |
39 | }, |
40 | 'Installed' => { |
41 | 'data_type' => 'VARCHAR', |
42 | }, |
43 | ); |
44 | __PACKAGE__->set_primary_key('Version'); |
45 | |
a89c6fc0 |
46 | package # Hide from PAUSE |
47 | DBIx::Class::Version; |
c9d2e0a2 |
48 | use base 'DBIx::Class::Schema'; |
49 | use strict; |
50 | use warnings; |
51 | |
52 | __PACKAGE__->register_class('Table', 'DBIx::Class::Version::Table'); |
53 | |
a89c6fc0 |
54 | package # Hide from PAUSE |
55 | DBIx::Class::VersionCompat; |
b4b1e91c |
56 | use base 'DBIx::Class::Schema'; |
57 | use strict; |
58 | use warnings; |
59 | |
60 | __PACKAGE__->register_class('TableCompat', 'DBIx::Class::Version::TableCompat'); |
61 | |
c9d2e0a2 |
62 | |
63 | # --------------------------------------------------------------------------- |
8424c090 |
64 | |
65 | =head1 NAME |
66 | |
67 | DBIx::Class::Schema::Versioned - DBIx::Class::Schema plugin for Schema upgrades |
68 | |
69 | =head1 SYNOPSIS |
70 | |
6c2b68ed |
71 | package MyApp::Schema; |
e84a43c1 |
72 | use base qw/DBIx::Class::Schema/; |
73 | |
74 | our $VERSION = 0.001; |
75 | |
6c2b68ed |
76 | # load MyApp::Schema::CD, MyApp::Schema::Book, MyApp::Schema::DVD |
8424c090 |
77 | __PACKAGE__->load_classes(qw/CD Book DVD/); |
78 | |
e84a43c1 |
79 | __PACKAGE__->load_components(qw/Schema::Versioned/); |
8424c090 |
80 | __PACKAGE__->upgrade_directory('/path/to/upgrades/'); |
8424c090 |
81 | |
82 | |
83 | =head1 DESCRIPTION |
84 | |
e84a43c1 |
85 | This module provides methods to apply DDL changes to your database using SQL |
86 | diff files. Normally these diff files would be created using |
87 | L<DBIx::Class::Schema/create_ddl_dir>. |
8424c090 |
88 | |
b4b1e91c |
89 | A table called I<dbix_class_schema_versions> is created and maintained by the |
e84a43c1 |
90 | module. This is used to determine which version your database is currently at. |
91 | Similarly the $VERSION in your DBIC schema class is used to determine the |
92 | current DBIC schema version. |
8424c090 |
93 | |
e84a43c1 |
94 | The upgrade is initiated manually by calling C<upgrade> on your schema object, |
95 | this will attempt to upgrade the database from its current version to the current |
96 | schema version using a diff from your I<upgrade_directory>. If a suitable diff is |
97 | not found then no upgrade is possible. |
8424c090 |
98 | |
99 | NB: At the moment, only SQLite and MySQL are supported. This is due to |
100 | spotty behaviour in the SQL::Translator producers, please help us by |
e63a82f7 |
101 | enhancing them. Ask on the mailing list or IRC channel for details (community details |
e84a43c1 |
102 | in L<DBIx::Class>). |
93e4d41a |
103 | |
104 | =head1 GETTING STARTED |
105 | |
e84a43c1 |
106 | Firstly you need to setup your schema class as per the L</SYNOPSIS>, make sure |
107 | you have specified an upgrade_directory and an initial $VERSION. |
93e4d41a |
108 | |
e84a43c1 |
109 | Then you'll need two scripts, one to create DDL files and diffs and another to perform |
110 | upgrades. Your creation script might look like a bit like this: |
93e4d41a |
111 | |
e84a43c1 |
112 | use strict; |
113 | use Pod::Usage; |
114 | use Getopt::Long; |
115 | use MyApp::Schema; |
8424c090 |
116 | |
56988b6c |
117 | my ( $preversion, $help ); |
e84a43c1 |
118 | GetOptions( |
119 | 'p|preversion:s' => \$preversion, |
120 | ) or die pod2usage; |
8424c090 |
121 | |
e84a43c1 |
122 | my $schema = MyApp::Schema->connect( |
123 | $dsn, |
124 | $user, |
125 | $password, |
126 | ); |
127 | my $sql_dir = './sql'; |
128 | my $version = $schema->schema_version(); |
129 | $schema->create_ddl_dir( 'MySQL', $version, $sql_dir, $preversion ); |
8424c090 |
130 | |
e84a43c1 |
131 | Then your upgrade script might look like so: |
132 | |
133 | use strict; |
134 | use MyApp::Schema; |
135 | |
136 | my $schema = MyApp::Schema->connect( |
137 | $dsn, |
138 | $user, |
139 | $password, |
140 | ); |
8424c090 |
141 | |
e84a43c1 |
142 | if (!$schema->get_db_version()) { |
143 | # schema is unversioned |
144 | $schema->deploy(); |
145 | } else { |
146 | $schema->upgrade(); |
147 | } |
148 | |
149 | The script above assumes that if the database is unversioned then it is empty |
150 | and we can safely deploy the DDL to it. However things are not always so simple. |
151 | |
152 | if you want to initialise a pre-existing database where the DDL is not the same |
82625f90 |
153 | as the DDL for your current schema version then you will need a diff which |
e84a43c1 |
154 | converts the database's DDL to the current DDL. The best way to do this is |
155 | to get a dump of the database schema (without data) and save that in your |
156 | SQL directory as version 0.000 (the filename must be as with |
82625f90 |
157 | L<DBIx::Class::Schema/ddl_filename>) then create a diff using your create DDL |
e84a43c1 |
158 | script given above from version 0.000 to the current version. Then hand check |
82625f90 |
159 | and if necessary edit the resulting diff to ensure that it will apply. Once you have |
e84a43c1 |
160 | done all that you can do this: |
161 | |
162 | if (!$schema->get_db_version()) { |
163 | # schema is unversioned |
164 | $schema->install("0.000"); |
165 | } |
166 | |
167 | # this will now apply the 0.000 to current version diff |
168 | $schema->upgrade(); |
169 | |
170 | In the case of an unversioned database the above code will create the |
82625f90 |
171 | dbix_class_schema_versions table and write version 0.000 to it, then |
e84a43c1 |
172 | upgrade will then apply the diff we talked about creating in the previous paragraph |
173 | and then you're good to go. |
8424c090 |
174 | |
175 | =cut |
176 | |
c9d2e0a2 |
177 | package DBIx::Class::Schema::Versioned; |
178 | |
179 | use strict; |
180 | use warnings; |
d88ecca6 |
181 | use base 'DBIx::Class::Schema'; |
341d5ede |
182 | |
183 | use Carp::Clan qw/^DBIx::Class/; |
d2bc7045 |
184 | use Time::HiRes qw/gettimeofday/; |
c9d2e0a2 |
185 | |
186 | __PACKAGE__->mk_classdata('_filedata'); |
187 | __PACKAGE__->mk_classdata('upgrade_directory'); |
8795fefb |
188 | __PACKAGE__->mk_classdata('backup_directory'); |
f925f7cb |
189 | __PACKAGE__->mk_classdata('do_backup'); |
8424c090 |
190 | __PACKAGE__->mk_classdata('do_diff_on_init'); |
191 | |
e84a43c1 |
192 | |
193 | =head1 METHODS |
194 | |
195 | =head2 upgrade_directory |
196 | |
197 | Use this to set the directory your upgrade files are stored in. |
198 | |
199 | =head2 backup_directory |
200 | |
201 | Use this to set the directory you want your backups stored in (note that backups |
202 | are disabled by default). |
203 | |
204 | =cut |
205 | |
93e4d41a |
206 | =head2 install |
c9d2e0a2 |
207 | |
93e4d41a |
208 | =over 4 |
c9d2e0a2 |
209 | |
93e4d41a |
210 | =item Arguments: $db_version |
e6129e56 |
211 | |
93e4d41a |
212 | =back |
8424c090 |
213 | |
93e4d41a |
214 | Call this to initialise a previously unversioned database. The table 'dbix_class_schema_versions' will be created which will be used to store the database version. |
8424c090 |
215 | |
93e4d41a |
216 | Takes one argument which should be the version that the database is currently at. Defaults to the return value of L</schema_version>. |
8424c090 |
217 | |
93e4d41a |
218 | See L</getting_started> for more details. |
f81b9157 |
219 | |
8424c090 |
220 | =cut |
221 | |
93e4d41a |
222 | sub install |
c9d2e0a2 |
223 | { |
93e4d41a |
224 | my ($self, $new_version) = @_; |
c9d2e0a2 |
225 | |
93e4d41a |
226 | # must be called on a fresh database |
227 | if ($self->get_db_version()) { |
341d5ede |
228 | carp 'Install not possible as versions table already exists in database'; |
8424c090 |
229 | } |
c9d2e0a2 |
230 | |
93e4d41a |
231 | # default to current version if none passed |
232 | $new_version ||= $self->schema_version(); |
8424c090 |
233 | |
e84a43c1 |
234 | if ($new_version) { |
93e4d41a |
235 | # create versions table and version row |
236 | $self->{vschema}->deploy; |
a354b842 |
237 | $self->_set_db_version({ version => $new_version }); |
8424c090 |
238 | } |
c9d2e0a2 |
239 | } |
240 | |
e84a43c1 |
241 | =head2 deploy |
242 | |
243 | Same as L<DBIx::Class::Schema/deploy> but also calls C<install>. |
244 | |
245 | =cut |
246 | |
247 | sub deploy { |
248 | my $self = shift; |
249 | $self->next::method(@_); |
250 | $self->install(); |
251 | } |
252 | |
a354b842 |
253 | =head2 create_upgrade_path |
254 | |
255 | =over 4 |
256 | |
257 | =item Arguments: { upgrade_file => $file } |
258 | |
259 | =back |
260 | |
56988b6c |
261 | Virtual method that should be overriden to create an upgrade file. |
262 | This is useful in the case of upgrading across multiple versions |
a354b842 |
263 | to concatenate several files to create one upgrade file. |
264 | |
4a743a00 |
265 | You'll probably want the db_version retrieved via $self->get_db_version |
56988b6c |
266 | and the schema_version which is retrieved via $self->schema_version |
4a743a00 |
267 | |
a354b842 |
268 | =cut |
269 | |
270 | sub create_upgrade_path { |
d7a58a29 |
271 | ## override this method |
a354b842 |
272 | } |
273 | |
d2bc7045 |
274 | =head2 ordered_schema_versions |
275 | |
276 | =over 4 |
277 | |
278 | =item Returns: a list of version numbers, ordered from lowest to highest |
279 | |
280 | =back |
281 | |
282 | Virtual method that should be overriden to return an ordered list |
283 | of schema versions. This is then used to produce a set of steps to |
284 | upgrade through to achieve the required schema version. |
285 | |
286 | You may want the db_version retrieved via $self->get_db_version |
56988b6c |
287 | and the schema_version which is retrieved via $self->schema_version |
d2bc7045 |
288 | |
289 | =cut |
290 | |
291 | sub ordered_schema_versions { |
56988b6c |
292 | ## override this method |
d2bc7045 |
293 | } |
294 | |
8424c090 |
295 | =head2 upgrade |
e2c0df8e |
296 | |
d2bc7045 |
297 | Call this to attempt to upgrade your database from the version it |
298 | is at to the version this DBIC schema is at. If they are the same |
299 | it does nothing. |
e84a43c1 |
300 | |
d2bc7045 |
301 | It will call L</ordered_schema_versions> to retrieve an ordered |
302 | list of schema versions (if ordered_schema_versions returns nothing |
303 | then it is assumed you can do the upgrade as a single step). It |
304 | then iterates through the list of versions between the current db |
305 | version and the schema version applying one update at a time until |
306 | all relvant updates are applied. |
c9d2e0a2 |
307 | |
d2bc7045 |
308 | The individual update steps are performed by using |
309 | L</upgrade_single_step>, which will apply the update and also |
310 | update the dbix_class_schema_versions table. |
c9d2e0a2 |
311 | |
8424c090 |
312 | =cut |
c9d2e0a2 |
313 | |
d2bc7045 |
314 | sub upgrade { |
315 | my ($self) = @_; |
316 | my $db_version = $self->get_db_version(); |
c9d2e0a2 |
317 | |
d2bc7045 |
318 | # db unversioned |
319 | unless ($db_version) { |
320 | carp 'Upgrade not possible as database is unversioned. Please call install first.'; |
321 | return; |
322 | } |
323 | |
324 | # db and schema at same version. do nothing |
325 | if ( $db_version eq $self->schema_version ) { |
326 | carp "Upgrade not necessary\n"; |
327 | return; |
328 | } |
329 | |
330 | my @version_list = $self->ordered_schema_versions; |
331 | |
332 | # if nothing returned then we preload with min/max |
333 | @version_list = ( $db_version, $self->schema_version ) |
334 | unless ( scalar(@version_list) ); |
335 | |
336 | # catch the case of someone returning an arrayref |
337 | @version_list = @{ $version_list[0] } |
338 | if ( ref( $version_list[0] ) eq 'ARRAY' ); |
339 | |
340 | # remove all versions in list above the required version |
341 | while ( scalar(@version_list) |
342 | && ( $version_list[-1] ne $self->schema_version ) ) |
343 | { |
344 | pop @version_list; |
345 | } |
346 | |
347 | # remove all versions in list below the current version |
348 | while ( scalar(@version_list) && ( $version_list[0] ne $db_version ) ) { |
349 | shift @version_list; |
350 | } |
351 | |
352 | # check we have an appropriate list of versions |
353 | if ( scalar(@version_list) < 2 ) { |
354 | die; |
355 | } |
356 | |
357 | # do sets of upgrade |
358 | while ( scalar(@version_list) >= 2 ) { |
359 | $self->upgrade_single_step( $version_list[0], $version_list[1] ); |
360 | shift @version_list; |
361 | } |
362 | } |
363 | |
364 | =head2 upgrade_single_step |
365 | |
366 | =over 4 |
367 | |
368 | =item Arguments: db_version - the version currently within the db |
369 | |
370 | =item Arguments: target_version - the version to upgrade to |
371 | |
372 | =back |
373 | |
374 | Call this to attempt to upgrade your database from the |
375 | I<db_version> to the I<target_version>. If they are the same it |
376 | does nothing. |
377 | |
378 | It requires an SQL diff file to exist in your I<upgrade_directory>, |
379 | normally you will have created this using L<DBIx::Class::Schema/create_ddl_dir>. |
380 | |
381 | If successful the dbix_class_schema_versions table is updated with |
382 | the I<target_version>. |
383 | |
384 | This method may be called repeatedly by the upgrade method to |
385 | upgrade through a series of updates. |
386 | |
387 | =cut |
388 | |
389 | sub upgrade_single_step |
390 | { |
391 | my ($self, |
392 | $db_version, |
393 | $target_version) = @_; |
c9d2e0a2 |
394 | |
8424c090 |
395 | # db and schema at same version. do nothing |
d2bc7045 |
396 | if ($db_version eq $target_version) { |
341d5ede |
397 | carp "Upgrade not necessary\n"; |
8424c090 |
398 | return; |
c9d2e0a2 |
399 | } |
400 | |
37fcb5b5 |
401 | # strangely the first time this is called can |
82625f90 |
402 | # differ to subsequent times. so we call it |
37fcb5b5 |
403 | # here to be sure. |
404 | # XXX - just fix it |
405 | $self->storage->sqlt_type; |
d4daee7b |
406 | |
8424c090 |
407 | my $upgrade_file = $self->ddl_filename( |
408 | $self->storage->sqlt_type, |
d2bc7045 |
409 | $target_version, |
99a74c4a |
410 | $self->upgrade_directory, |
8424c090 |
411 | $db_version, |
412 | ); |
c9d2e0a2 |
413 | |
a354b842 |
414 | $self->create_upgrade_path({ upgrade_file => $upgrade_file }); |
415 | |
8424c090 |
416 | unless (-f $upgrade_file) { |
341d5ede |
417 | carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n"; |
8424c090 |
418 | return; |
419 | } |
c9d2e0a2 |
420 | |
d7a58a29 |
421 | carp "DB version ($db_version) is lower than the schema version (".$self->schema_version."). Attempting upgrade.\n"; |
a354b842 |
422 | |
8424c090 |
423 | # backup if necessary then apply upgrade |
424 | $self->_filedata($self->_read_sql_file($upgrade_file)); |
425 | $self->backup() if($self->do_backup); |
426 | $self->txn_do(sub { $self->do_upgrade() }); |
c9d2e0a2 |
427 | |
b4b1e91c |
428 | # set row in dbix_class_schema_versions table |
d2bc7045 |
429 | $self->_set_db_version({version => $target_version}); |
8424c090 |
430 | } |
c9d2e0a2 |
431 | |
e6129e56 |
432 | =head2 do_upgrade |
433 | |
c9d2e0a2 |
434 | This is an overwritable method used to run your upgrade. The freeform method |
435 | allows you to run your upgrade any way you please, you can call C<run_upgrade> |
436 | any number of times to run the actual SQL commands, and in between you can |
437 | sandwich your data upgrading. For example, first run all the B<CREATE> |
82625f90 |
438 | commands, then migrate your data from old to new tables/formats, then |
e7b14c5b |
439 | issue the DROP commands when you are finished. Will run the whole file as it is by default. |
8424c090 |
440 | |
441 | =cut |
442 | |
443 | sub do_upgrade |
444 | { |
e7b14c5b |
445 | my ($self) = @_; |
8424c090 |
446 | |
56988b6c |
447 | # just run all the commands (including inserts) in order |
e7b14c5b |
448 | $self->run_upgrade(qr/.*?/); |
8424c090 |
449 | } |
450 | |
c9d2e0a2 |
451 | =head2 run_upgrade |
452 | |
453 | $self->run_upgrade(qr/create/i); |
454 | |
455 | Runs a set of SQL statements matching a passed in regular expression. The |
456 | idea is that this method can be called any number of times from your |
e84a43c1 |
457 | C<do_upgrade> method, running whichever commands you specify via the |
8424c090 |
458 | regex in the parameter. Probably won't work unless called from the overridable |
459 | do_upgrade method. |
c9d2e0a2 |
460 | |
8424c090 |
461 | =cut |
8795fefb |
462 | |
8424c090 |
463 | sub run_upgrade |
464 | { |
465 | my ($self, $stm) = @_; |
8795fefb |
466 | |
8424c090 |
467 | return unless ($self->_filedata); |
468 | my @statements = grep { $_ =~ $stm } @{$self->_filedata}; |
469 | $self->_filedata([ grep { $_ !~ /$stm/i } @{$self->_filedata} ]); |
8795fefb |
470 | |
8424c090 |
471 | for (@statements) |
82625f90 |
472 | { |
8424c090 |
473 | $self->storage->debugobj->query_start($_) if $self->storage->debug; |
abc8f12a |
474 | $self->apply_statement($_); |
8424c090 |
475 | $self->storage->debugobj->query_end($_) if $self->storage->debug; |
476 | } |
8795fefb |
477 | |
8424c090 |
478 | return 1; |
479 | } |
42416a0b |
480 | |
abc8f12a |
481 | =head2 apply_statement |
482 | |
483 | Takes an SQL statement and runs it. Override this if you want to handle errors |
484 | differently. |
485 | |
486 | =cut |
487 | |
488 | sub apply_statement { |
489 | my ($self, $statement) = @_; |
490 | |
d7a58a29 |
491 | $self->storage->dbh->do($_) or carp "SQL was: $_"; |
abc8f12a |
492 | } |
493 | |
93e4d41a |
494 | =head2 get_db_version |
495 | |
496 | Returns the version that your database is currently at. This is determined by the values in the |
e84a43c1 |
497 | dbix_class_schema_versions table that C<upgrade> and C<install> write to. |
93e4d41a |
498 | |
499 | =cut |
500 | |
501 | sub get_db_version |
502 | { |
503 | my ($self, $rs) = @_; |
504 | |
505 | my $vtable = $self->{vschema}->resultset('Table'); |
56988b6c |
506 | my $version = eval { |
507 | $vtable->search({}, { order_by => { -desc => 'installed' }, rows => 1 } ) |
508 | ->get_column ('version') |
509 | ->next; |
93e4d41a |
510 | }; |
56988b6c |
511 | return $version || 0; |
93e4d41a |
512 | } |
513 | |
514 | =head2 schema_version |
515 | |
516 | Returns the current schema class' $VERSION |
517 | |
518 | =cut |
519 | |
520 | =head2 backup |
521 | |
522 | This is an overwritable method which is called just before the upgrade, to |
523 | allow you to make a backup of the database. Per default this method attempts |
524 | to call C<< $self->storage->backup >>, to run the standard backup on each |
56988b6c |
525 | database type. |
93e4d41a |
526 | |
527 | This method should return the name of the backup file, if appropriate.. |
528 | |
529 | This method is disabled by default. Set $schema->do_backup(1) to enable it. |
530 | |
531 | =cut |
532 | |
533 | sub backup |
534 | { |
535 | my ($self) = @_; |
536 | ## Make each ::DBI::Foo do this |
537 | $self->storage->backup($self->backup_directory()); |
538 | } |
539 | |
ecea7937 |
540 | =head2 connection |
541 | |
542 | Overloaded method. This checks the DBIC schema version against the DB version and |
543 | warns if they are not the same or if the DB is unversioned. It also provides |
544 | compatibility between the old versions table (SchemaVersions) and the new one |
545 | (dbix_class_schema_versions). |
546 | |
e84a43c1 |
547 | To avoid the checks on connect, set the env var DBIC_NO_VERSION_CHECK or alternatively you can set the ignore_version attr in the forth argument like so: |
f81b9157 |
548 | |
549 | my $schema = MyApp::Schema->connect( |
550 | $dsn, |
551 | $user, |
552 | $password, |
553 | { ignore_version => 1 }, |
554 | ); |
ecea7937 |
555 | |
556 | =cut |
557 | |
8424c090 |
558 | sub connection { |
559 | my $self = shift; |
560 | $self->next::method(@_); |
f81b9157 |
561 | $self->_on_connect($_[3]); |
8424c090 |
562 | return $self; |
563 | } |
564 | |
565 | sub _on_connect |
566 | { |
f81b9157 |
567 | my ($self, $args) = @_; |
568 | |
569 | $args = {} unless $args; |
06f10f6f |
570 | |
8424c090 |
571 | $self->{vschema} = DBIx::Class::Version->connect(@{$self->storage->connect_info()}); |
b4b1e91c |
572 | my $vtable = $self->{vschema}->resultset('Table'); |
573 | |
c99c4801 |
574 | # useful when connecting from scripts etc |
575 | return if ($args->{ignore_version} || ($ENV{DBIC_NO_VERSION_CHECK} && !exists $args->{ignore_version})); |
576 | |
b4b1e91c |
577 | # check for legacy versions table and move to new if exists |
578 | my $vschema_compat = DBIx::Class::VersionCompat->connect(@{$self->storage->connect_info()}); |
579 | unless ($self->_source_exists($vtable)) { |
580 | my $vtable_compat = $vschema_compat->resultset('TableCompat'); |
581 | if ($self->_source_exists($vtable_compat)) { |
582 | $self->{vschema}->deploy; |
732dc718 |
583 | map { $vtable->create({ installed => $_->Installed, version => $_->Version }) } $vtable_compat->all; |
b4b1e91c |
584 | $self->storage->dbh->do("DROP TABLE " . $vtable_compat->result_source->from); |
585 | } |
586 | } |
f81b9157 |
587 | |
8424c090 |
588 | my $pversion = $self->get_db_version(); |
589 | |
590 | if($pversion eq $self->schema_version) |
591 | { |
341d5ede |
592 | # carp "This version is already installed\n"; |
8424c090 |
593 | return 1; |
594 | } |
42416a0b |
595 | |
8424c090 |
596 | if(!$pversion) |
597 | { |
341d5ede |
598 | carp "Your DB is currently unversioned. Please call upgrade on your schema to sync the DB.\n"; |
8424c090 |
599 | return 1; |
600 | } |
601 | |
d7a58a29 |
602 | carp "Versions out of sync. This is " . $self->schema_version . |
8424c090 |
603 | ", your database contains version $pversion, please call upgrade on your Schema.\n"; |
604 | } |
605 | |
93e4d41a |
606 | # is this just a waste of time? if not then merge with DBI.pm |
607 | sub _create_db_to_schema_diff { |
608 | my $self = shift; |
609 | |
610 | my %driver_to_db_map = ( |
611 | 'mysql' => 'MySQL' |
612 | ); |
613 | |
614 | my $db = $driver_to_db_map{$self->storage->dbh->{Driver}->{Name}}; |
615 | unless ($db) { |
616 | print "Sorry, this is an unsupported DB\n"; |
617 | return; |
618 | } |
619 | |
b2b2e7fd |
620 | $self->throw_exception($self->storage->_sqlt_version_error) |
621 | if (not $self->storage->_sqlt_version_ok); |
93e4d41a |
622 | |
b2b2e7fd |
623 | my $db_tr = SQL::Translator->new({ |
624 | add_drop_table => 1, |
93e4d41a |
625 | parser => 'DBI', |
626 | parser_args => { dbh => $self->storage->dbh } |
627 | }); |
628 | |
629 | $db_tr->producer($db); |
630 | my $dbic_tr = SQL::Translator->new; |
631 | $dbic_tr->parser('SQL::Translator::Parser::DBIx::Class'); |
93e4d41a |
632 | $dbic_tr->data($self); |
633 | $dbic_tr->producer($db); |
634 | |
635 | $db_tr->schema->name('db_schema'); |
636 | $dbic_tr->schema->name('dbic_schema'); |
637 | |
638 | # is this really necessary? |
639 | foreach my $tr ($db_tr, $dbic_tr) { |
640 | my $data = $tr->data; |
641 | $tr->parser->($tr, $$data); |
642 | } |
643 | |
82625f90 |
644 | my $diff = SQL::Translator::Diff::schema_diff($db_tr->schema, $db, |
93e4d41a |
645 | $dbic_tr->schema, $db, |
646 | { ignore_constraint_names => 1, ignore_index_names => 1, caseopt => 1 }); |
647 | |
648 | my $filename = $self->ddl_filename( |
649 | $db, |
650 | $self->schema_version, |
651 | $self->upgrade_directory, |
652 | 'PRE', |
653 | ); |
654 | my $file; |
655 | if(!open($file, ">$filename")) |
656 | { |
657 | $self->throw_exception("Can't open $filename for writing ($!)"); |
658 | next; |
659 | } |
660 | print $file $diff; |
661 | close($file); |
662 | |
341d5ede |
663 | carp "WARNING: There may be differences between your DB and your DBIC schema. Please review and if necessary run the SQL in $filename to sync your DB.\n"; |
93e4d41a |
664 | } |
665 | |
666 | |
667 | sub _set_db_version { |
668 | my $self = shift; |
a354b842 |
669 | my ($params) = @_; |
670 | $params ||= {}; |
93e4d41a |
671 | |
a354b842 |
672 | my $version = $params->{version} ? $params->{version} : $self->schema_version; |
93e4d41a |
673 | my $vtable = $self->{vschema}->resultset('Table'); |
93e4d41a |
674 | |
d2bc7045 |
675 | ############################################################################## |
676 | # !!! NOTE !!! |
677 | ############################################################################## |
678 | # |
679 | # The travesty below replaces the old nice timestamp format of %Y-%m-%d %H:%M:%S |
680 | # This is necessary since there are legitimate cases when upgrades can happen |
681 | # back to back within the same second. This breaks things since we relay on the |
682 | # ability to sort by the 'installed' value. The logical choice of an autoinc |
683 | # is not possible, as it will break multiple legacy installations. Also it is |
684 | # not possible to format the string sanely, as the column is a varchar(20). |
685 | # The 'v' character is added to the front of the string, so that any version |
686 | # formatted by this new function will sort _after_ any existing 200... strings. |
687 | my @tm = gettimeofday(); |
688 | my @dt = gmtime ($tm[0]); |
689 | my $o = $vtable->create({ |
690 | version => $version, |
691 | installed => sprintf("v%04d%02d%02d_%02d%02d%02d.%03.0f", |
692 | $dt[5] + 1900, |
693 | $dt[4] + 1, |
694 | $dt[3], |
695 | $dt[2], |
696 | $dt[1], |
697 | $dt[0], |
698 | $tm[1] / 1000, # convert to millisecs, format as up/down rounded int above |
699 | ), |
700 | }); |
93e4d41a |
701 | } |
702 | |
703 | sub _read_sql_file { |
704 | my $self = shift; |
705 | my $file = shift || return; |
706 | |
82625f90 |
707 | open my $fh, '<', $file or carp("Can't open upgrade file, $file ($!)"); |
708 | my @data = split /\n/, join '', <$fh>; |
709 | close $fh; |
710 | |
711 | @data = grep { |
712 | $_ && |
713 | !/^--/ && |
714 | !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/m |
715 | } split /;/, |
716 | join '', @data; |
717 | |
93e4d41a |
718 | return \@data; |
719 | } |
720 | |
721 | sub _source_exists |
722 | { |
723 | my ($self, $rs) = @_; |
724 | |
725 | my $c = eval { |
726 | $rs->search({ 1, 0 })->count; |
727 | }; |
728 | return 0 if $@ || !defined $c; |
729 | |
730 | return 1; |
731 | } |
732 | |
8424c090 |
733 | 1; |
734 | |
735 | |
736 | =head1 AUTHORS |
c9d2e0a2 |
737 | |
1a9251f7 |
738 | Jess Robinson <castaway@desert-island.me.uk> |
8424c090 |
739 | Luke Saunders <luke@shadowcatsystems.co.uk> |
740 | |
741 | =head1 LICENSE |
742 | |
743 | You may distribute this code under the same terms as Perl itself. |