Commit | Line | Data |
996be9ee |
1 | package DBIx::Class::Schema::Loader::Base; |
2 | |
3 | use strict; |
4 | use warnings; |
6ae3f335 |
5 | use base qw/Class::Accessor::Fast Class::C3::Componentised/; |
996be9ee |
6 | use Class::C3; |
fa994d3c |
7 | use Carp::Clan qw/^DBIx::Class/; |
996be9ee |
8 | use DBIx::Class::Schema::Loader::RelBuilder; |
9 | use Data::Dump qw/ dump /; |
10 | use POSIX qw//; |
dd03ee1a |
11 | use File::Spec qw//; |
419a2eeb |
12 | use Cwd qw//; |
7cab3ab7 |
13 | use Digest::MD5 qw//; |
22270947 |
14 | use Lingua::EN::Inflect::Number qw//; |
af31090c |
15 | use File::Temp qw//; |
16 | use Class::Unload; |
996be9ee |
17 | require DBIx::Class; |
18 | |
0a701ff3 |
19 | our $VERSION = '0.04999_12'; |
32f784fc |
20 | |
996be9ee |
21 | __PACKAGE__->mk_ro_accessors(qw/ |
22 | schema |
23 | schema_class |
24 | |
25 | exclude |
26 | constraint |
27 | additional_classes |
28 | additional_base_classes |
29 | left_base_classes |
30 | components |
31 | resultset_components |
59cfa251 |
32 | skip_relationships |
996be9ee |
33 | moniker_map |
34 | inflect_singular |
35 | inflect_plural |
36 | debug |
37 | dump_directory |
d65cda9e |
38 | dump_overwrite |
28b4691d |
39 | really_erase_my_files |
f44ecc2f |
40 | use_namespaces |
41 | result_namespace |
42 | resultset_namespace |
43 | default_resultset_class |
9c9c2f2b |
44 | schema_base_class |
45 | result_base_class |
996be9ee |
46 | |
996be9ee |
47 | db_schema |
48 | _tables |
49 | classes |
50 | monikers |
106a976a |
51 | dynamic |
996be9ee |
52 | /); |
53 | |
01012543 |
54 | __PACKAGE__->mk_accessors(qw/ |
55 | version_to_dump |
1c95b304 |
56 | schema_version_to_dump |
01012543 |
57 | /); |
58 | |
996be9ee |
59 | =head1 NAME |
60 | |
61 | DBIx::Class::Schema::Loader::Base - Base DBIx::Class::Schema::Loader Implementation. |
62 | |
63 | =head1 SYNOPSIS |
64 | |
65 | See L<DBIx::Class::Schema::Loader> |
66 | |
67 | =head1 DESCRIPTION |
68 | |
69 | This is the base class for the storage-specific C<DBIx::Class::Schema::*> |
70 | classes, and implements the common functionality between them. |
71 | |
72 | =head1 CONSTRUCTOR OPTIONS |
73 | |
74 | These constructor options are the base options for |
29ddb54c |
75 | L<DBIx::Class::Schema::Loader/loader_options>. Available constructor options are: |
3953cbee |
76 | |
59cfa251 |
77 | =head2 skip_relationships |
996be9ee |
78 | |
59cfa251 |
79 | Skip setting up relationships. The default is to attempt the loading |
80 | of relationships. |
996be9ee |
81 | |
9a95164d |
82 | =head2 naming |
83 | |
84 | Static schemas (ones dumped to disk) will, by default, use the new-style 0.05XXX |
85 | relationship names and singularized Results, unless you're overwriting an |
86 | existing dump made by a 0.04XXX version of L<DBIx::Class::Schema::Loader>, in |
87 | which case the backward compatible RelBuilder will be activated, and |
88 | singularization will be turned off. |
89 | |
90 | Specifying |
91 | |
92 | naming => 'v5' |
93 | |
94 | will disable the backward-compatible RelBuilder and use |
95 | the new-style relationship names along with singularized Results, even when |
96 | overwriting a dump made with an earlier version. |
97 | |
98 | The option also takes a hashref: |
99 | |
100 | naming => { relationships => 'v5', results => 'v4' } |
101 | |
102 | The values can be: |
103 | |
104 | =over 4 |
105 | |
106 | =item current |
107 | |
108 | Latest default style, whatever that happens to be. |
109 | |
110 | =item v5 |
111 | |
112 | Version 0.05XXX style. |
113 | |
114 | =item v4 |
115 | |
116 | Version 0.04XXX style. |
117 | |
118 | =back |
119 | |
120 | Dynamic schemas will always default to the 0.04XXX relationship names and won't |
121 | singularize Results for backward compatibility, to activate the new RelBuilder |
122 | and singularization put this in your C<Schema.pm> file: |
123 | |
124 | __PACKAGE__->naming('current'); |
125 | |
126 | Or if you prefer to use 0.05XXX features but insure that nothing breaks in the |
127 | next major version upgrade: |
128 | |
129 | __PACKAGE__->naming('v5'); |
130 | |
996be9ee |
131 | =head2 debug |
132 | |
133 | If set to true, each constructive L<DBIx::Class> statement the loader |
134 | decides to execute will be C<warn>-ed before execution. |
135 | |
d65cda9e |
136 | =head2 db_schema |
137 | |
138 | Set the name of the schema to load (schema in the sense that your database |
139 | vendor means it). Does not currently support loading more than one schema |
140 | name. |
141 | |
996be9ee |
142 | =head2 constraint |
143 | |
144 | Only load tables matching regex. Best specified as a qr// regex. |
145 | |
146 | =head2 exclude |
147 | |
148 | Exclude tables matching regex. Best specified as a qr// regex. |
149 | |
150 | =head2 moniker_map |
151 | |
8f9d7ce5 |
152 | Overrides the default table name to moniker translation. Can be either |
153 | a hashref of table keys and moniker values, or a coderef for a translator |
996be9ee |
154 | function taking a single scalar table name argument and returning |
155 | a scalar moniker. If the hash entry does not exist, or the function |
156 | returns a false value, the code falls back to default behavior |
157 | for that table name. |
158 | |
159 | The default behavior is: C<join '', map ucfirst, split /[\W_]+/, lc $table>, |
160 | which is to say: lowercase everything, split up the table name into chunks |
161 | anywhere a non-alpha-numeric character occurs, change the case of first letter |
162 | of each chunk to upper case, and put the chunks back together. Examples: |
163 | |
164 | Table Name | Moniker Name |
165 | --------------------------- |
166 | luser | Luser |
167 | luser_group | LuserGroup |
168 | luser-opts | LuserOpts |
169 | |
170 | =head2 inflect_plural |
171 | |
172 | Just like L</moniker_map> above (can be hash/code-ref, falls back to default |
173 | if hash key does not exist or coderef returns false), but acts as a map |
174 | for pluralizing relationship names. The default behavior is to utilize |
175 | L<Lingua::EN::Inflect::Number/to_PL>. |
176 | |
177 | =head2 inflect_singular |
178 | |
179 | As L</inflect_plural> above, but for singularizing relationship names. |
180 | Default behavior is to utilize L<Lingua::EN::Inflect::Number/to_S>. |
181 | |
9c9c2f2b |
182 | =head2 schema_base_class |
183 | |
184 | Base class for your schema classes. Defaults to 'DBIx::Class::Schema'. |
185 | |
186 | =head2 result_base_class |
187 | |
2229729e |
188 | Base class for your table classes (aka result classes). Defaults to |
189 | 'DBIx::Class::Core'. |
9c9c2f2b |
190 | |
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191 | =head2 additional_base_classes |
192 | |
193 | List of additional base classes all of your table classes will use. |
194 | |
195 | =head2 left_base_classes |
196 | |
197 | List of additional base classes all of your table classes will use |
198 | that need to be leftmost. |
199 | |
200 | =head2 additional_classes |
201 | |
202 | List of additional classes which all of your table classes will use. |
203 | |
204 | =head2 components |
205 | |
206 | List of additional components to be loaded into all of your table |
207 | classes. A good example would be C<ResultSetManager>. |
208 | |
209 | =head2 resultset_components |
210 | |
8f9d7ce5 |
211 | List of additional ResultSet components to be loaded into your table |
996be9ee |
212 | classes. A good example would be C<AlwaysRS>. Component |
213 | C<ResultSetManager> will be automatically added to the above |
214 | C<components> list if this option is set. |
215 | |
f44ecc2f |
216 | =head2 use_namespaces |
217 | |
218 | Generate result class names suitable for |
219 | L<DBIx::Class::Schema/load_namespaces> and call that instead of |
220 | L<DBIx::Class::Schema/load_classes>. When using this option you can also |
221 | specify any of the options for C<load_namespaces> (i.e. C<result_namespace>, |
222 | C<resultset_namespace>, C<default_resultset_class>), and they will be added |
223 | to the call (and the generated result class names adjusted appropriately). |
224 | |
996be9ee |
225 | =head2 dump_directory |
226 | |
227 | This option is designed to be a tool to help you transition from this |
228 | loader to a manually-defined schema when you decide it's time to do so. |
229 | |
230 | The value of this option is a perl libdir pathname. Within |
231 | that directory this module will create a baseline manual |
232 | L<DBIx::Class::Schema> module set, based on what it creates at runtime |
233 | in memory. |
234 | |
235 | The created schema class will have the same classname as the one on |
236 | which you are setting this option (and the ResultSource classes will be |
7cab3ab7 |
237 | based on this name as well). |
996be9ee |
238 | |
8f9d7ce5 |
239 | Normally you wouldn't hard-code this setting in your schema class, as it |
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240 | is meant for one-time manual usage. |
241 | |
242 | See L<DBIx::Class::Schema::Loader/dump_to_dir> for examples of the |
243 | recommended way to access this functionality. |
244 | |
d65cda9e |
245 | =head2 dump_overwrite |
246 | |
28b4691d |
247 | Deprecated. See L</really_erase_my_files> below, which does *not* mean |
248 | the same thing as the old C<dump_overwrite> setting from previous releases. |
249 | |
250 | =head2 really_erase_my_files |
251 | |
7cab3ab7 |
252 | Default false. If true, Loader will unconditionally delete any existing |
253 | files before creating the new ones from scratch when dumping a schema to disk. |
254 | |
255 | The default behavior is instead to only replace the top portion of the |
256 | file, up to and including the final stanza which contains |
257 | C<# DO NOT MODIFY THIS OR ANYTHING ABOVE!> |
258 | leaving any customizations you placed after that as they were. |
259 | |
28b4691d |
260 | When C<really_erase_my_files> is not set, if the output file already exists, |
7cab3ab7 |
261 | but the aforementioned final stanza is not found, or the checksum |
262 | contained there does not match the generated contents, Loader will |
263 | croak and not touch the file. |
d65cda9e |
264 | |
28b4691d |
265 | You should really be using version control on your schema classes (and all |
266 | of the rest of your code for that matter). Don't blame me if a bug in this |
267 | code wipes something out when it shouldn't have, you've been warned. |
268 | |
996be9ee |
269 | =head1 METHODS |
270 | |
271 | None of these methods are intended for direct invocation by regular |
272 | users of L<DBIx::Class::Schema::Loader>. Anything you can find here |
273 | can also be found via standard L<DBIx::Class::Schema> methods somehow. |
274 | |
275 | =cut |
276 | |
277 | # ensure that a peice of object data is a valid arrayref, creating |
278 | # an empty one or encapsulating whatever's there. |
279 | sub _ensure_arrayref { |
280 | my $self = shift; |
281 | |
282 | foreach (@_) { |
283 | $self->{$_} ||= []; |
284 | $self->{$_} = [ $self->{$_} ] |
285 | unless ref $self->{$_} eq 'ARRAY'; |
286 | } |
287 | } |
288 | |
289 | =head2 new |
290 | |
291 | Constructor for L<DBIx::Class::Schema::Loader::Base>, used internally |
292 | by L<DBIx::Class::Schema::Loader>. |
293 | |
294 | =cut |
295 | |
296 | sub new { |
297 | my ( $class, %args ) = @_; |
298 | |
299 | my $self = { %args }; |
300 | |
301 | bless $self => $class; |
302 | |
996be9ee |
303 | $self->_ensure_arrayref(qw/additional_classes |
304 | additional_base_classes |
305 | left_base_classes |
306 | components |
307 | resultset_components |
308 | /); |
309 | |
310 | push(@{$self->{components}}, 'ResultSetManager') |
311 | if @{$self->{resultset_components}}; |
312 | |
313 | $self->{monikers} = {}; |
314 | $self->{classes} = {}; |
315 | |
996be9ee |
316 | $self->{schema_class} ||= ( ref $self->{schema} || $self->{schema} ); |
317 | $self->{schema} ||= $self->{schema_class}; |
318 | |
28b4691d |
319 | croak "dump_overwrite is deprecated. Please read the" |
320 | . " DBIx::Class::Schema::Loader::Base documentation" |
321 | if $self->{dump_overwrite}; |
322 | |
af31090c |
323 | $self->{dynamic} = ! $self->{dump_directory}; |
79193756 |
324 | $self->{temp_directory} ||= File::Temp::tempdir( 'dbicXXXX', |
af31090c |
325 | TMPDIR => 1, |
326 | CLEANUP => 1, |
327 | ); |
328 | |
79193756 |
329 | $self->{dump_directory} ||= $self->{temp_directory}; |
330 | |
01012543 |
331 | $self->version_to_dump($DBIx::Class::Schema::Loader::VERSION); |
1c95b304 |
332 | $self->schema_version_to_dump($DBIx::Class::Schema::Loader::VERSION); |
01012543 |
333 | |
7824616e |
334 | $self->_check_back_compat; |
9c465d2c |
335 | |
7824616e |
336 | $self; |
337 | } |
af31090c |
338 | |
7824616e |
339 | sub _check_back_compat { |
340 | my ($self) = @_; |
e8ad6491 |
341 | |
01012543 |
342 | # dynamic schemas will always be in 0.04006 mode |
106a976a |
343 | if ($self->dynamic) { |
01012543 |
344 | no strict 'refs'; |
345 | my $class = ref $self || $self; |
3c10a10f |
346 | require DBIx::Class::Schema::Loader::Compat::v0_040; |
254ba31c |
347 | |
348 | @{"${class}::ISA"} = map { |
349 | $_ eq 'DBIx::Class::Schema::Loader::Base' ? |
350 | 'DBIx::Class::Schema::Loader::Compat::v0_040' : |
351 | $_ |
352 | } @{"${class}::ISA"}; |
353 | |
01012543 |
354 | Class::C3::reinitialize; |
fb3bb595 |
355 | # just in case, though no one is likely to dump a dynamic schema |
1c95b304 |
356 | $self->schema_version_to_dump('0.04006'); |
01012543 |
357 | return; |
358 | } |
359 | |
360 | # otherwise check if we need backcompat mode for a static schema |
7824616e |
361 | my $filename = $self->_get_dump_filename($self->schema_class); |
362 | return unless -e $filename; |
363 | |
364 | open(my $fh, '<', $filename) |
365 | or croak "Cannot open '$filename' for reading: $!"; |
366 | |
367 | while (<$fh>) { |
01012543 |
368 | if (/^# Created by DBIx::Class::Schema::Loader v((\d+)\.(\d+))/) { |
369 | my $real_ver = $1; |
370 | my $ver = "v${2}_${3}"; |
7824616e |
371 | while (1) { |
372 | my $compat_class = "DBIx::Class::Schema::Loader::Compat::${ver}"; |
373 | if ($self->load_optional_class($compat_class)) { |
374 | no strict 'refs'; |
375 | my $class = ref $self || $self; |
254ba31c |
376 | |
377 | @{"${class}::ISA"} = map { |
378 | $_ eq 'DBIx::Class::Schema::Loader::Base' ? |
379 | $compat_class : $_ |
380 | } @{"${class}::ISA"}; |
381 | |
01012543 |
382 | Class::C3::reinitialize; |
1c95b304 |
383 | $self->schema_version_to_dump($real_ver); |
7824616e |
384 | last; |
385 | } |
386 | $ver =~ s/\d\z// or last; |
387 | } |
388 | last; |
389 | } |
390 | } |
391 | close $fh; |
996be9ee |
392 | } |
393 | |
419a2eeb |
394 | sub _find_file_in_inc { |
395 | my ($self, $file) = @_; |
396 | |
397 | foreach my $prefix (@INC) { |
af31090c |
398 | my $fullpath = File::Spec->catfile($prefix, $file); |
399 | return $fullpath if -f $fullpath |
400 | and Cwd::abs_path($fullpath) ne |
401 | Cwd::abs_path(File::Spec->catfile($self->dump_directory, $file)) || ''; |
419a2eeb |
402 | } |
403 | |
404 | return; |
405 | } |
406 | |
fb3bb595 |
407 | sub _class_path { |
f96ef30f |
408 | my ($self, $class) = @_; |
409 | |
410 | my $class_path = $class; |
411 | $class_path =~ s{::}{/}g; |
412 | $class_path .= '.pm'; |
413 | |
fb3bb595 |
414 | return $class_path; |
415 | } |
416 | |
417 | sub _find_class_in_inc { |
418 | my ($self, $class) = @_; |
419 | |
420 | return $self->_find_file_in_inc($self->_class_path($class)); |
421 | } |
422 | |
423 | sub _load_external { |
424 | my ($self, $class) = @_; |
425 | |
426 | my $real_inc_path = $self->_find_class_in_inc($class); |
f96ef30f |
427 | |
af31090c |
428 | return if !$real_inc_path; |
f96ef30f |
429 | |
430 | # If we make it to here, we loaded an external definition |
431 | warn qq/# Loaded external class definition for '$class'\n/ |
432 | if $self->debug; |
433 | |
f96ef30f |
434 | open(my $fh, '<', $real_inc_path) |
435 | or croak "Failed to open '$real_inc_path' for reading: $!"; |
436 | $self->_ext_stmt($class, |
565ca24d |
437 | qq|# These lines were loaded from '$real_inc_path' found in \@INC.\n| |
438 | .qq|# They are now part of the custom portion of this file\n| |
439 | .qq|# for you to hand-edit. If you do not either delete\n| |
440 | .qq|# this section or remove that file from \@INC, this section\n| |
441 | .qq|# will be repeated redundantly when you re-create this\n| |
442 | .qq|# file again via Loader!\n| |
f96ef30f |
443 | ); |
444 | while(<$fh>) { |
445 | chomp; |
446 | $self->_ext_stmt($class, $_); |
996be9ee |
447 | } |
f96ef30f |
448 | $self->_ext_stmt($class, |
70b72fab |
449 | qq|# End of lines loaded from '$real_inc_path' | |
f96ef30f |
450 | ); |
451 | close($fh) |
452 | or croak "Failed to close $real_inc_path: $!"; |
106a976a |
453 | |
dd5f03fc |
454 | if ($self->dynamic) { # load the class too |
9e8033c1 |
455 | # turn off redefined warnings |
dd5f03fc |
456 | local $SIG{__WARN__} = sub {}; |
9e8033c1 |
457 | do $real_inc_path; |
dd5f03fc |
458 | die $@ if $@; |
9e8033c1 |
459 | } |
996be9ee |
460 | } |
461 | |
462 | =head2 load |
463 | |
464 | Does the actual schema-construction work. |
465 | |
466 | =cut |
467 | |
468 | sub load { |
469 | my $self = shift; |
470 | |
b97c2c1e |
471 | $self->_load_tables($self->_tables_list); |
472 | } |
473 | |
474 | =head2 rescan |
475 | |
a60b5b8d |
476 | Arguments: schema |
477 | |
b97c2c1e |
478 | Rescan the database for newly added tables. Does |
a60b5b8d |
479 | not process drops or changes. Returns a list of |
480 | the newly added table monikers. |
481 | |
482 | The schema argument should be the schema class |
483 | or object to be affected. It should probably |
484 | be derived from the original schema_class used |
485 | during L</load>. |
b97c2c1e |
486 | |
487 | =cut |
488 | |
489 | sub rescan { |
a60b5b8d |
490 | my ($self, $schema) = @_; |
491 | |
492 | $self->{schema} = $schema; |
7824616e |
493 | $self->_relbuilder->{schema} = $schema; |
b97c2c1e |
494 | |
495 | my @created; |
496 | my @current = $self->_tables_list; |
497 | foreach my $table ($self->_tables_list) { |
498 | if(!exists $self->{_tables}->{$table}) { |
499 | push(@created, $table); |
500 | } |
501 | } |
502 | |
c39e3507 |
503 | my $loaded = $self->_load_tables(@created); |
a60b5b8d |
504 | |
c39e3507 |
505 | return map { $self->monikers->{$_} } @$loaded; |
b97c2c1e |
506 | } |
507 | |
7824616e |
508 | sub _relbuilder { |
509 | my ($self) = @_; |
3fed44ca |
510 | |
511 | return if $self->{skip_relationships}; |
512 | |
7824616e |
513 | $self->{relbuilder} ||= DBIx::Class::Schema::Loader::RelBuilder->new( |
514 | $self->schema, $self->inflect_plural, $self->inflect_singular |
515 | ); |
516 | } |
517 | |
b97c2c1e |
518 | sub _load_tables { |
519 | my ($self, @tables) = @_; |
520 | |
f96ef30f |
521 | # First, use _tables_list with constraint and exclude |
522 | # to get a list of tables to operate on |
523 | |
524 | my $constraint = $self->constraint; |
525 | my $exclude = $self->exclude; |
f96ef30f |
526 | |
b97c2c1e |
527 | @tables = grep { /$constraint/ } @tables if $constraint; |
528 | @tables = grep { ! /$exclude/ } @tables if $exclude; |
f96ef30f |
529 | |
b97c2c1e |
530 | # Save the new tables to the tables list |
a60b5b8d |
531 | foreach (@tables) { |
532 | $self->{_tables}->{$_} = 1; |
533 | } |
f96ef30f |
534 | |
af31090c |
535 | $self->_make_src_class($_) for @tables; |
f96ef30f |
536 | $self->_setup_src_meta($_) for @tables; |
537 | |
e8ad6491 |
538 | if(!$self->skip_relationships) { |
181cc907 |
539 | # The relationship loader needs a working schema |
af31090c |
540 | $self->{quiet} = 1; |
79193756 |
541 | local $self->{dump_directory} = $self->{temp_directory}; |
106a976a |
542 | $self->_reload_classes(\@tables); |
e8ad6491 |
543 | $self->_load_relationships($_) for @tables; |
af31090c |
544 | $self->{quiet} = 0; |
79193756 |
545 | |
546 | # Remove that temp dir from INC so it doesn't get reloaded |
547 | @INC = grep { $_ ne $self->{dump_directory} } @INC; |
e8ad6491 |
548 | } |
549 | |
f96ef30f |
550 | $self->_load_external($_) |
75451704 |
551 | for map { $self->classes->{$_} } @tables; |
f96ef30f |
552 | |
106a976a |
553 | # Reload without unloading first to preserve any symbols from external |
554 | # packages. |
555 | $self->_reload_classes(\@tables, 0); |
996be9ee |
556 | |
5223f24a |
557 | # Drop temporary cache |
558 | delete $self->{_cache}; |
559 | |
c39e3507 |
560 | return \@tables; |
996be9ee |
561 | } |
562 | |
af31090c |
563 | sub _reload_classes { |
106a976a |
564 | my ($self, $tables, $unload) = @_; |
565 | |
566 | my @tables = @$tables; |
567 | $unload = 1 unless defined $unload; |
181cc907 |
568 | |
4daef04f |
569 | # so that we don't repeat custom sections |
570 | @INC = grep $_ ne $self->dump_directory, @INC; |
571 | |
181cc907 |
572 | $self->_dump_to_dir(map { $self->classes->{$_} } @tables); |
e9b8719e |
573 | |
574 | unshift @INC, $self->dump_directory; |
af31090c |
575 | |
706ef173 |
576 | my @to_register; |
577 | my %have_source = map { $_ => $self->schema->source($_) } |
578 | $self->schema->sources; |
579 | |
181cc907 |
580 | for my $table (@tables) { |
581 | my $moniker = $self->monikers->{$table}; |
582 | my $class = $self->classes->{$table}; |
0ae6b65d |
583 | |
584 | { |
585 | no warnings 'redefine'; |
586 | local *Class::C3::reinitialize = sub {}; |
587 | use warnings; |
588 | |
106a976a |
589 | Class::Unload->unload($class) if $unload; |
706ef173 |
590 | my ($source, $resultset_class); |
591 | if ( |
592 | ($source = $have_source{$moniker}) |
593 | && ($resultset_class = $source->resultset_class) |
594 | && ($resultset_class ne 'DBIx::Class::ResultSet') |
595 | ) { |
596 | my $has_file = Class::Inspector->loaded_filename($resultset_class); |
106a976a |
597 | Class::Unload->unload($resultset_class) if $unload; |
598 | $self->_reload_class($resultset_class) if $has_file; |
0ae6b65d |
599 | } |
106a976a |
600 | $self->_reload_class($class); |
af31090c |
601 | } |
706ef173 |
602 | push @to_register, [$moniker, $class]; |
603 | } |
af31090c |
604 | |
706ef173 |
605 | Class::C3->reinitialize; |
606 | for (@to_register) { |
607 | $self->schema->register_class(@$_); |
af31090c |
608 | } |
609 | } |
610 | |
106a976a |
611 | # We use this instead of ensure_class_loaded when there are package symbols we |
612 | # want to preserve. |
613 | sub _reload_class { |
614 | my ($self, $class) = @_; |
615 | |
616 | my $class_path = $self->_class_path($class); |
617 | delete $INC{ $class_path }; |
618 | eval "require $class;"; |
619 | } |
620 | |
996be9ee |
621 | sub _get_dump_filename { |
622 | my ($self, $class) = (@_); |
623 | |
624 | $class =~ s{::}{/}g; |
625 | return $self->dump_directory . q{/} . $class . q{.pm}; |
626 | } |
627 | |
628 | sub _ensure_dump_subdirs { |
629 | my ($self, $class) = (@_); |
630 | |
631 | my @name_parts = split(/::/, $class); |
dd03ee1a |
632 | pop @name_parts; # we don't care about the very last element, |
633 | # which is a filename |
634 | |
996be9ee |
635 | my $dir = $self->dump_directory; |
7cab3ab7 |
636 | while (1) { |
637 | if(!-d $dir) { |
25328cc4 |
638 | mkdir($dir) or croak "mkdir('$dir') failed: $!"; |
996be9ee |
639 | } |
7cab3ab7 |
640 | last if !@name_parts; |
641 | $dir = File::Spec->catdir($dir, shift @name_parts); |
996be9ee |
642 | } |
643 | } |
644 | |
645 | sub _dump_to_dir { |
af31090c |
646 | my ($self, @classes) = @_; |
996be9ee |
647 | |
fc2b71fd |
648 | my $schema_class = $self->schema_class; |
9c9c2f2b |
649 | my $schema_base_class = $self->schema_base_class || 'DBIx::Class::Schema'; |
996be9ee |
650 | |
e9b8719e |
651 | my $target_dir = $self->dump_directory; |
af31090c |
652 | warn "Dumping manual schema for $schema_class to directory $target_dir ...\n" |
653 | unless $self->{dynamic} or $self->{quiet}; |
996be9ee |
654 | |
7cab3ab7 |
655 | my $schema_text = |
656 | qq|package $schema_class;\n\n| |
b4dcbcc5 |
657 | . qq|# Created by DBIx::Class::Schema::Loader\n| |
658 | . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n| |
7cab3ab7 |
659 | . qq|use strict;\nuse warnings;\n\n| |
9c9c2f2b |
660 | . qq|use base '$schema_base_class';\n\n|; |
f44ecc2f |
661 | |
f44ecc2f |
662 | if ($self->use_namespaces) { |
663 | $schema_text .= qq|__PACKAGE__->load_namespaces|; |
664 | my $namespace_options; |
665 | for my $attr (qw(result_namespace |
666 | resultset_namespace |
667 | default_resultset_class)) { |
668 | if ($self->$attr) { |
669 | $namespace_options .= qq| $attr => '| . $self->$attr . qq|',\n| |
670 | } |
671 | } |
672 | $schema_text .= qq|(\n$namespace_options)| if $namespace_options; |
673 | $schema_text .= qq|;\n|; |
674 | } |
675 | else { |
676 | $schema_text .= qq|__PACKAGE__->load_classes;\n|; |
f44ecc2f |
677 | } |
996be9ee |
678 | |
1c95b304 |
679 | { |
680 | local $self->{version_to_dump} = $self->schema_version_to_dump; |
681 | $self->_write_classfile($schema_class, $schema_text); |
682 | } |
996be9ee |
683 | |
2229729e |
684 | my $result_base_class = $self->result_base_class || 'DBIx::Class::Core'; |
9c9c2f2b |
685 | |
af31090c |
686 | foreach my $src_class (@classes) { |
7cab3ab7 |
687 | my $src_text = |
688 | qq|package $src_class;\n\n| |
b4dcbcc5 |
689 | . qq|# Created by DBIx::Class::Schema::Loader\n| |
690 | . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n| |
7cab3ab7 |
691 | . qq|use strict;\nuse warnings;\n\n| |
9c9c2f2b |
692 | . qq|use base '$result_base_class';\n\n|; |
996be9ee |
693 | |
7cab3ab7 |
694 | $self->_write_classfile($src_class, $src_text); |
02356864 |
695 | } |
996be9ee |
696 | |
af31090c |
697 | warn "Schema dump completed.\n" unless $self->{dynamic} or $self->{quiet}; |
698 | |
7cab3ab7 |
699 | } |
700 | |
79193756 |
701 | sub _sig_comment { |
702 | my ($self, $version, $ts) = @_; |
703 | return qq|\n\n# Created by DBIx::Class::Schema::Loader| |
704 | . qq| v| . $version |
705 | . q| @ | . $ts |
706 | . qq|\n# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:|; |
707 | } |
708 | |
7cab3ab7 |
709 | sub _write_classfile { |
710 | my ($self, $class, $text) = @_; |
711 | |
712 | my $filename = $self->_get_dump_filename($class); |
713 | $self->_ensure_dump_subdirs($class); |
714 | |
28b4691d |
715 | if (-f $filename && $self->really_erase_my_files) { |
7cab3ab7 |
716 | warn "Deleting existing file '$filename' due to " |
af31090c |
717 | . "'really_erase_my_files' setting\n" unless $self->{quiet}; |
7cab3ab7 |
718 | unlink($filename); |
719 | } |
720 | |
79193756 |
721 | my ($custom_content, $old_md5, $old_ver, $old_ts) = $self->_get_custom_content($class, $filename); |
17ca645f |
722 | |
7cab3ab7 |
723 | $text .= qq|$_\n| |
724 | for @{$self->{_dump_storage}->{$class} || []}; |
725 | |
79193756 |
726 | # Check and see if the dump is infact differnt |
727 | |
728 | my $compare_to; |
729 | if ($old_md5) { |
730 | $compare_to = $text . $self->_sig_comment($old_ver, $old_ts); |
731 | |
732 | |
733 | if (Digest::MD5::md5_base64($compare_to) eq $old_md5) { |
734 | return; |
735 | } |
736 | } |
737 | |
738 | $text .= $self->_sig_comment( |
01012543 |
739 | $self->version_to_dump, |
79193756 |
740 | POSIX::strftime('%Y-%m-%d %H:%M:%S', localtime) |
741 | ); |
7cab3ab7 |
742 | |
743 | open(my $fh, '>', $filename) |
744 | or croak "Cannot open '$filename' for writing: $!"; |
745 | |
746 | # Write the top half and its MD5 sum |
a4476f41 |
747 | print $fh $text . Digest::MD5::md5_base64($text) . "\n"; |
7cab3ab7 |
748 | |
749 | # Write out anything loaded via external partial class file in @INC |
750 | print $fh qq|$_\n| |
751 | for @{$self->{_ext_storage}->{$class} || []}; |
752 | |
1eea4fb1 |
753 | # Write out any custom content the user has added |
7cab3ab7 |
754 | print $fh $custom_content; |
755 | |
756 | close($fh) |
e9b8719e |
757 | or croak "Error closing '$filename': $!"; |
7cab3ab7 |
758 | } |
759 | |
79193756 |
760 | sub _default_custom_content { |
761 | return qq|\n\n# You can replace this text with custom| |
762 | . qq| content, and it will be preserved on regeneration| |
763 | . qq|\n1;\n|; |
764 | } |
765 | |
7cab3ab7 |
766 | sub _get_custom_content { |
767 | my ($self, $class, $filename) = @_; |
768 | |
79193756 |
769 | return ($self->_default_custom_content) if ! -f $filename; |
770 | |
7cab3ab7 |
771 | open(my $fh, '<', $filename) |
772 | or croak "Cannot open '$filename' for reading: $!"; |
773 | |
774 | my $mark_re = |
419a2eeb |
775 | qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\n}; |
7cab3ab7 |
776 | |
7cab3ab7 |
777 | my $buffer = ''; |
79193756 |
778 | my ($md5, $ts, $ver); |
7cab3ab7 |
779 | while(<$fh>) { |
79193756 |
780 | if(!$md5 && /$mark_re/) { |
781 | $md5 = $2; |
782 | my $line = $1; |
783 | |
784 | # Pull out the previous version and timestamp |
785 | ($ver, $ts) = $buffer =~ m/# Created by DBIx::Class::Schema::Loader v(.*?) @ (.*?)$/s; |
786 | |
787 | $buffer .= $line; |
7cab3ab7 |
788 | croak "Checksum mismatch in '$filename'" |
79193756 |
789 | if Digest::MD5::md5_base64($buffer) ne $md5; |
7cab3ab7 |
790 | |
791 | $buffer = ''; |
792 | } |
793 | else { |
794 | $buffer .= $_; |
795 | } |
996be9ee |
796 | } |
797 | |
28b4691d |
798 | croak "Cannot not overwrite '$filename' without 'really_erase_my_files'," |
419a2eeb |
799 | . " it does not appear to have been generated by Loader" |
79193756 |
800 | if !$md5; |
5ef3c771 |
801 | |
79193756 |
802 | # Default custom content: |
803 | $buffer ||= $self->_default_custom_content; |
5ef3c771 |
804 | |
79193756 |
805 | return ($buffer, $md5, $ver, $ts); |
996be9ee |
806 | } |
807 | |
808 | sub _use { |
809 | my $self = shift; |
810 | my $target = shift; |
811 | |
812 | foreach (@_) { |
cb54990b |
813 | warn "$target: use $_;" if $self->debug; |
996be9ee |
814 | $self->_raw_stmt($target, "use $_;"); |
996be9ee |
815 | } |
816 | } |
817 | |
818 | sub _inject { |
819 | my $self = shift; |
820 | my $target = shift; |
821 | my $schema_class = $self->schema_class; |
822 | |
af31090c |
823 | my $blist = join(q{ }, @_); |
824 | warn "$target: use base qw/ $blist /;" if $self->debug && @_; |
825 | $self->_raw_stmt($target, "use base qw/ $blist /;") if @_; |
996be9ee |
826 | } |
827 | |
f96ef30f |
828 | # Create class with applicable bases, setup monikers, etc |
829 | sub _make_src_class { |
830 | my ($self, $table) = @_; |
996be9ee |
831 | |
a13b2803 |
832 | my $schema = $self->schema; |
833 | my $schema_class = $self->schema_class; |
996be9ee |
834 | |
f96ef30f |
835 | my $table_moniker = $self->_table2moniker($table); |
f44ecc2f |
836 | my @result_namespace = ($schema_class); |
837 | if ($self->use_namespaces) { |
838 | my $result_namespace = $self->result_namespace || 'Result'; |
839 | if ($result_namespace =~ /^\+(.*)/) { |
840 | # Fully qualified namespace |
841 | @result_namespace = ($1) |
842 | } |
843 | else { |
844 | # Relative namespace |
845 | push @result_namespace, $result_namespace; |
846 | } |
847 | } |
848 | my $table_class = join(q{::}, @result_namespace, $table_moniker); |
996be9ee |
849 | |
f96ef30f |
850 | my $table_normalized = lc $table; |
851 | $self->classes->{$table} = $table_class; |
852 | $self->classes->{$table_normalized} = $table_class; |
853 | $self->monikers->{$table} = $table_moniker; |
854 | $self->monikers->{$table_normalized} = $table_moniker; |
996be9ee |
855 | |
f96ef30f |
856 | $self->_use ($table_class, @{$self->additional_classes}); |
af31090c |
857 | $self->_inject($table_class, @{$self->left_base_classes}); |
996be9ee |
858 | |
2229729e |
859 | if (my @components = @{ $self->components }) { |
860 | $self->_dbic_stmt($table_class, 'load_components', @components); |
861 | } |
996be9ee |
862 | |
f96ef30f |
863 | $self->_dbic_stmt($table_class, 'load_resultset_components', @{$self->resultset_components}) |
864 | if @{$self->resultset_components}; |
af31090c |
865 | $self->_inject($table_class, @{$self->additional_base_classes}); |
f96ef30f |
866 | } |
996be9ee |
867 | |
af31090c |
868 | # Set up metadata (cols, pks, etc) |
f96ef30f |
869 | sub _setup_src_meta { |
870 | my ($self, $table) = @_; |
996be9ee |
871 | |
f96ef30f |
872 | my $schema = $self->schema; |
873 | my $schema_class = $self->schema_class; |
a13b2803 |
874 | |
f96ef30f |
875 | my $table_class = $self->classes->{$table}; |
876 | my $table_moniker = $self->monikers->{$table}; |
996be9ee |
877 | |
ff30991a |
878 | my $table_name = $table; |
879 | my $name_sep = $self->schema->storage->sql_maker->name_sep; |
880 | |
c177d483 |
881 | if ($name_sep && $table_name =~ /\Q$name_sep\E/) { |
ff30991a |
882 | $table_name = \ $self->_quote_table_name($table_name); |
883 | } |
884 | |
885 | $self->_dbic_stmt($table_class,'table',$table_name); |
996be9ee |
886 | |
f96ef30f |
887 | my $cols = $self->_table_columns($table); |
888 | my $col_info; |
889 | eval { $col_info = $self->_columns_info_for($table) }; |
890 | if($@) { |
891 | $self->_dbic_stmt($table_class,'add_columns',@$cols); |
892 | } |
893 | else { |
0906d55b |
894 | if ($self->_is_case_sensitive) { |
895 | for my $col (keys %$col_info) { |
896 | $col_info->{$col}{accessor} = lc $col |
897 | if $col ne lc($col); |
898 | } |
899 | } else { |
900 | $col_info = { map { lc($_), $col_info->{$_} } keys %$col_info }; |
c9373b79 |
901 | } |
902 | |
e7213f4f |
903 | my $fks = $self->_table_fk_info($table); |
565335e6 |
904 | |
e7213f4f |
905 | for my $fkdef (@$fks) { |
906 | for my $col (@{ $fkdef->{local_columns} }) { |
565335e6 |
907 | $col_info->{$col}{is_foreign_key} = 1; |
e7213f4f |
908 | } |
909 | } |
f96ef30f |
910 | $self->_dbic_stmt( |
911 | $table_class, |
912 | 'add_columns', |
565335e6 |
913 | map { $_, ($col_info->{$_}||{}) } @$cols |
f96ef30f |
914 | ); |
996be9ee |
915 | } |
916 | |
d70c335f |
917 | my %uniq_tag; # used to eliminate duplicate uniqs |
918 | |
f96ef30f |
919 | my $pks = $self->_table_pk_info($table) || []; |
920 | @$pks ? $self->_dbic_stmt($table_class,'set_primary_key',@$pks) |
921 | : carp("$table has no primary key"); |
d70c335f |
922 | $uniq_tag{ join("\0", @$pks) }++ if @$pks; # pk is a uniq |
996be9ee |
923 | |
f96ef30f |
924 | my $uniqs = $self->_table_uniq_info($table) || []; |
d70c335f |
925 | for (@$uniqs) { |
926 | my ($name, $cols) = @$_; |
927 | next if $uniq_tag{ join("\0", @$cols) }++; # skip duplicates |
928 | $self->_dbic_stmt($table_class,'add_unique_constraint', $name, $cols); |
929 | } |
930 | |
996be9ee |
931 | } |
932 | |
933 | =head2 tables |
934 | |
935 | Returns a sorted list of loaded tables, using the original database table |
936 | names. |
937 | |
938 | =cut |
939 | |
940 | sub tables { |
941 | my $self = shift; |
942 | |
b97c2c1e |
943 | return keys %{$self->_tables}; |
996be9ee |
944 | } |
945 | |
946 | # Make a moniker from a table |
c39e403e |
947 | sub _default_table2moniker { |
948 | my ($self, $table) = @_; |
949 | |
950 | return join '', map ucfirst, split /[\W_]+/, |
951 | Lingua::EN::Inflect::Number::to_S(lc $table); |
952 | } |
953 | |
996be9ee |
954 | sub _table2moniker { |
955 | my ( $self, $table ) = @_; |
956 | |
957 | my $moniker; |
958 | |
959 | if( ref $self->moniker_map eq 'HASH' ) { |
960 | $moniker = $self->moniker_map->{$table}; |
961 | } |
962 | elsif( ref $self->moniker_map eq 'CODE' ) { |
963 | $moniker = $self->moniker_map->($table); |
964 | } |
965 | |
c39e403e |
966 | $moniker ||= $self->_default_table2moniker($table); |
996be9ee |
967 | |
968 | return $moniker; |
969 | } |
970 | |
971 | sub _load_relationships { |
e8ad6491 |
972 | my ($self, $table) = @_; |
996be9ee |
973 | |
e8ad6491 |
974 | my $tbl_fk_info = $self->_table_fk_info($table); |
975 | foreach my $fkdef (@$tbl_fk_info) { |
976 | $fkdef->{remote_source} = |
977 | $self->monikers->{delete $fkdef->{remote_table}}; |
996be9ee |
978 | } |
26f1c8c9 |
979 | my $tbl_uniq_info = $self->_table_uniq_info($table); |
996be9ee |
980 | |
e8ad6491 |
981 | my $local_moniker = $self->monikers->{$table}; |
7824616e |
982 | my $rel_stmts = $self->_relbuilder->generate_code($local_moniker, $tbl_fk_info, $tbl_uniq_info); |
996be9ee |
983 | |
996be9ee |
984 | foreach my $src_class (sort keys %$rel_stmts) { |
985 | my $src_stmts = $rel_stmts->{$src_class}; |
986 | foreach my $stmt (@$src_stmts) { |
987 | $self->_dbic_stmt($src_class,$stmt->{method},@{$stmt->{args}}); |
988 | } |
989 | } |
990 | } |
991 | |
992 | # Overload these in driver class: |
993 | |
994 | # Returns an arrayref of column names |
995 | sub _table_columns { croak "ABSTRACT METHOD" } |
996 | |
997 | # Returns arrayref of pk col names |
998 | sub _table_pk_info { croak "ABSTRACT METHOD" } |
999 | |
1000 | # Returns an arrayref of uniqs [ [ foo => [ col1, col2 ] ], [ bar => [ ... ] ] ] |
1001 | sub _table_uniq_info { croak "ABSTRACT METHOD" } |
1002 | |
1003 | # Returns an arrayref of foreign key constraints, each |
1004 | # being a hashref with 3 keys: |
1005 | # local_columns (arrayref), remote_columns (arrayref), remote_table |
1006 | sub _table_fk_info { croak "ABSTRACT METHOD" } |
1007 | |
1008 | # Returns an array of lower case table names |
1009 | sub _tables_list { croak "ABSTRACT METHOD" } |
1010 | |
1011 | # Execute a constructive DBIC class method, with debug/dump_to_dir hooks. |
1012 | sub _dbic_stmt { |
1013 | my $self = shift; |
1014 | my $class = shift; |
1015 | my $method = shift; |
fbcfebdd |
1016 | if ( $method eq 'table' ) { |
1017 | my ($table) = @_; |
1018 | $self->_pod( $class, "=head1 NAME" ); |
1019 | my $table_descr = $class; |
1020 | if ( $self->can('_table_comment') ) { |
1021 | my $comment = $self->_table_comment($table); |
1022 | $table_descr .= " - " . $comment if $comment; |
1023 | } |
1024 | $self->{_class2table}{ $class } = $table; |
1025 | $self->_pod( $class, $table_descr ); |
1026 | $self->_pod_cut( $class ); |
1027 | } elsif ( $method eq 'add_columns' ) { |
1028 | $self->_pod( $class, "=head1 ACCESSORS" ); |
1029 | my $i = 0; |
1030 | foreach ( @_ ) { |
1031 | $i++; |
1032 | next unless $i % 2; |
1033 | $self->_pod( $class, '=head2 ' . $_ ); |
1034 | my $comment; |
1035 | $comment = $self->_column_comment( $self->{_class2table}{$class}, ($i - 1) / 2 + 1 ) if $self->can('_column_comment'); |
1036 | $self->_pod( $class, $comment ) if $comment; |
1037 | } |
1038 | $self->_pod_cut( $class ); |
1039 | } elsif ( $method =~ /^(belongs_to|has_many|might_have)$/ ) { |
1040 | $self->_pod( $class, "=head1 RELATIONS" ) unless $self->{_relations_started} { $class } ; |
1041 | my ( $accessor, $rel_class ) = @_; |
1042 | $self->_pod( $class, "=head2 $accessor" ); |
1043 | $self->_pod( $class, 'Type: ' . $method ); |
1044 | $self->_pod( $class, "Related object: L<$rel_class>" ); |
1045 | $self->_pod_cut( $class ); |
1046 | $self->{_relations_started} { $class } = 1; |
1047 | } |
996be9ee |
1048 | my $args = dump(@_); |
1049 | $args = '(' . $args . ')' if @_ < 2; |
1050 | my $stmt = $method . $args . q{;}; |
1051 | |
1052 | warn qq|$class\->$stmt\n| if $self->debug; |
996be9ee |
1053 | $self->_raw_stmt($class, '__PACKAGE__->' . $stmt); |
fbcfebdd |
1054 | return; |
996be9ee |
1055 | } |
1056 | |
fbcfebdd |
1057 | # Stores a POD documentation |
1058 | sub _pod { |
1059 | my ($self, $class, $stmt) = @_; |
1060 | $self->_raw_stmt( $class, "\n" . $stmt ); |
1061 | } |
1062 | |
1063 | sub _pod_cut { |
1064 | my ($self, $class ) = @_; |
1065 | $self->_raw_stmt( $class, "\n=cut\n" ); |
1066 | } |
1067 | |
1068 | |
996be9ee |
1069 | # Store a raw source line for a class (for dumping purposes) |
1070 | sub _raw_stmt { |
1071 | my ($self, $class, $stmt) = @_; |
af31090c |
1072 | push(@{$self->{_dump_storage}->{$class}}, $stmt); |
996be9ee |
1073 | } |
1074 | |
7cab3ab7 |
1075 | # Like above, but separately for the externally loaded stuff |
1076 | sub _ext_stmt { |
1077 | my ($self, $class, $stmt) = @_; |
af31090c |
1078 | push(@{$self->{_ext_storage}->{$class}}, $stmt); |
7cab3ab7 |
1079 | } |
1080 | |
565335e6 |
1081 | sub _quote_table_name { |
1082 | my ($self, $table) = @_; |
1083 | |
1084 | my $qt = $self->schema->storage->sql_maker->quote_char; |
1085 | |
c177d483 |
1086 | return $table unless $qt; |
1087 | |
565335e6 |
1088 | if (ref $qt) { |
1089 | return $qt->[0] . $table . $qt->[1]; |
1090 | } |
1091 | |
1092 | return $qt . $table . $qt; |
1093 | } |
1094 | |
1095 | sub _is_case_sensitive { 0 } |
1096 | |
996be9ee |
1097 | =head2 monikers |
1098 | |
8f9d7ce5 |
1099 | Returns a hashref of loaded table to moniker mappings. There will |
996be9ee |
1100 | be two entries for each table, the original name and the "normalized" |
1101 | name, in the case that the two are different (such as databases |
1102 | that like uppercase table names, or preserve your original mixed-case |
1103 | definitions, or what-have-you). |
1104 | |
1105 | =head2 classes |
1106 | |
8f9d7ce5 |
1107 | Returns a hashref of table to class mappings. In some cases it will |
996be9ee |
1108 | contain multiple entries per table for the original and normalized table |
1109 | names, as above in L</monikers>. |
1110 | |
1111 | =head1 SEE ALSO |
1112 | |
1113 | L<DBIx::Class::Schema::Loader> |
1114 | |
be80bba7 |
1115 | =head1 AUTHOR |
1116 | |
1117 | See L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
1118 | |
1119 | =head1 LICENSE |
1120 | |
1121 | This library is free software; you can redistribute it and/or modify it under |
1122 | the same terms as Perl itself. |
1123 | |
996be9ee |
1124 | =cut |
1125 | |
1126 | 1; |