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 |
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46 | |
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47 | db_schema |
48 | _tables |
49 | classes |
50 | monikers |
106a976a |
51 | dynamic |
a8d229ff |
52 | naming |
996be9ee |
53 | /); |
54 | |
01012543 |
55 | __PACKAGE__->mk_accessors(qw/ |
56 | version_to_dump |
1c95b304 |
57 | schema_version_to_dump |
01012543 |
58 | /); |
59 | |
996be9ee |
60 | =head1 NAME |
61 | |
62 | DBIx::Class::Schema::Loader::Base - Base DBIx::Class::Schema::Loader Implementation. |
63 | |
64 | =head1 SYNOPSIS |
65 | |
66 | See L<DBIx::Class::Schema::Loader> |
67 | |
68 | =head1 DESCRIPTION |
69 | |
70 | This is the base class for the storage-specific C<DBIx::Class::Schema::*> |
71 | classes, and implements the common functionality between them. |
72 | |
73 | =head1 CONSTRUCTOR OPTIONS |
74 | |
75 | These constructor options are the base options for |
29ddb54c |
76 | L<DBIx::Class::Schema::Loader/loader_options>. Available constructor options are: |
3953cbee |
77 | |
59cfa251 |
78 | =head2 skip_relationships |
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79 | |
59cfa251 |
80 | Skip setting up relationships. The default is to attempt the loading |
81 | of relationships. |
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82 | |
9a95164d |
83 | =head2 naming |
84 | |
85 | Static schemas (ones dumped to disk) will, by default, use the new-style 0.05XXX |
86 | relationship names and singularized Results, unless you're overwriting an |
87 | existing dump made by a 0.04XXX version of L<DBIx::Class::Schema::Loader>, in |
88 | which case the backward compatible RelBuilder will be activated, and |
89 | singularization will be turned off. |
90 | |
91 | Specifying |
92 | |
93 | naming => 'v5' |
94 | |
95 | will disable the backward-compatible RelBuilder and use |
96 | the new-style relationship names along with singularized Results, even when |
97 | overwriting a dump made with an earlier version. |
98 | |
99 | The option also takes a hashref: |
100 | |
a8d229ff |
101 | naming => { relationships => 'v5', monikers => 'v4' } |
102 | |
103 | The keys are: |
104 | |
105 | =over 4 |
106 | |
107 | =item relationships |
108 | |
109 | How to name relationship accessors. |
110 | |
111 | =item monikers |
112 | |
113 | How to name Result classes. |
114 | |
115 | =back |
9a95164d |
116 | |
117 | The values can be: |
118 | |
119 | =over 4 |
120 | |
121 | =item current |
122 | |
123 | Latest default style, whatever that happens to be. |
124 | |
125 | =item v5 |
126 | |
127 | Version 0.05XXX style. |
128 | |
129 | =item v4 |
130 | |
131 | Version 0.04XXX style. |
132 | |
133 | =back |
134 | |
135 | Dynamic schemas will always default to the 0.04XXX relationship names and won't |
136 | singularize Results for backward compatibility, to activate the new RelBuilder |
137 | and singularization put this in your C<Schema.pm> file: |
138 | |
139 | __PACKAGE__->naming('current'); |
140 | |
141 | Or if you prefer to use 0.05XXX features but insure that nothing breaks in the |
142 | next major version upgrade: |
143 | |
144 | __PACKAGE__->naming('v5'); |
145 | |
996be9ee |
146 | =head2 debug |
147 | |
148 | If set to true, each constructive L<DBIx::Class> statement the loader |
149 | decides to execute will be C<warn>-ed before execution. |
150 | |
d65cda9e |
151 | =head2 db_schema |
152 | |
153 | Set the name of the schema to load (schema in the sense that your database |
154 | vendor means it). Does not currently support loading more than one schema |
155 | name. |
156 | |
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157 | =head2 constraint |
158 | |
159 | Only load tables matching regex. Best specified as a qr// regex. |
160 | |
161 | =head2 exclude |
162 | |
163 | Exclude tables matching regex. Best specified as a qr// regex. |
164 | |
165 | =head2 moniker_map |
166 | |
8f9d7ce5 |
167 | Overrides the default table name to moniker translation. Can be either |
168 | a hashref of table keys and moniker values, or a coderef for a translator |
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169 | function taking a single scalar table name argument and returning |
170 | a scalar moniker. If the hash entry does not exist, or the function |
171 | returns a false value, the code falls back to default behavior |
172 | for that table name. |
173 | |
174 | The default behavior is: C<join '', map ucfirst, split /[\W_]+/, lc $table>, |
175 | which is to say: lowercase everything, split up the table name into chunks |
176 | anywhere a non-alpha-numeric character occurs, change the case of first letter |
177 | of each chunk to upper case, and put the chunks back together. Examples: |
178 | |
179 | Table Name | Moniker Name |
180 | --------------------------- |
181 | luser | Luser |
182 | luser_group | LuserGroup |
183 | luser-opts | LuserOpts |
184 | |
185 | =head2 inflect_plural |
186 | |
187 | Just like L</moniker_map> above (can be hash/code-ref, falls back to default |
188 | if hash key does not exist or coderef returns false), but acts as a map |
189 | for pluralizing relationship names. The default behavior is to utilize |
190 | L<Lingua::EN::Inflect::Number/to_PL>. |
191 | |
192 | =head2 inflect_singular |
193 | |
194 | As L</inflect_plural> above, but for singularizing relationship names. |
195 | Default behavior is to utilize L<Lingua::EN::Inflect::Number/to_S>. |
196 | |
9c9c2f2b |
197 | =head2 schema_base_class |
198 | |
199 | Base class for your schema classes. Defaults to 'DBIx::Class::Schema'. |
200 | |
201 | =head2 result_base_class |
202 | |
2229729e |
203 | Base class for your table classes (aka result classes). Defaults to |
204 | 'DBIx::Class::Core'. |
9c9c2f2b |
205 | |
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206 | =head2 additional_base_classes |
207 | |
208 | List of additional base classes all of your table classes will use. |
209 | |
210 | =head2 left_base_classes |
211 | |
212 | List of additional base classes all of your table classes will use |
213 | that need to be leftmost. |
214 | |
215 | =head2 additional_classes |
216 | |
217 | List of additional classes which all of your table classes will use. |
218 | |
219 | =head2 components |
220 | |
221 | List of additional components to be loaded into all of your table |
222 | classes. A good example would be C<ResultSetManager>. |
223 | |
224 | =head2 resultset_components |
225 | |
8f9d7ce5 |
226 | List of additional ResultSet components to be loaded into your table |
996be9ee |
227 | classes. A good example would be C<AlwaysRS>. Component |
228 | C<ResultSetManager> will be automatically added to the above |
229 | C<components> list if this option is set. |
230 | |
f44ecc2f |
231 | =head2 use_namespaces |
232 | |
233 | Generate result class names suitable for |
234 | L<DBIx::Class::Schema/load_namespaces> and call that instead of |
235 | L<DBIx::Class::Schema/load_classes>. When using this option you can also |
236 | specify any of the options for C<load_namespaces> (i.e. C<result_namespace>, |
237 | C<resultset_namespace>, C<default_resultset_class>), and they will be added |
238 | to the call (and the generated result class names adjusted appropriately). |
239 | |
996be9ee |
240 | =head2 dump_directory |
241 | |
242 | This option is designed to be a tool to help you transition from this |
243 | loader to a manually-defined schema when you decide it's time to do so. |
244 | |
245 | The value of this option is a perl libdir pathname. Within |
246 | that directory this module will create a baseline manual |
247 | L<DBIx::Class::Schema> module set, based on what it creates at runtime |
248 | in memory. |
249 | |
250 | The created schema class will have the same classname as the one on |
251 | which you are setting this option (and the ResultSource classes will be |
7cab3ab7 |
252 | based on this name as well). |
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253 | |
8f9d7ce5 |
254 | Normally you wouldn't hard-code this setting in your schema class, as it |
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255 | is meant for one-time manual usage. |
256 | |
257 | See L<DBIx::Class::Schema::Loader/dump_to_dir> for examples of the |
258 | recommended way to access this functionality. |
259 | |
d65cda9e |
260 | =head2 dump_overwrite |
261 | |
28b4691d |
262 | Deprecated. See L</really_erase_my_files> below, which does *not* mean |
263 | the same thing as the old C<dump_overwrite> setting from previous releases. |
264 | |
265 | =head2 really_erase_my_files |
266 | |
7cab3ab7 |
267 | Default false. If true, Loader will unconditionally delete any existing |
268 | files before creating the new ones from scratch when dumping a schema to disk. |
269 | |
270 | The default behavior is instead to only replace the top portion of the |
271 | file, up to and including the final stanza which contains |
272 | C<# DO NOT MODIFY THIS OR ANYTHING ABOVE!> |
273 | leaving any customizations you placed after that as they were. |
274 | |
28b4691d |
275 | When C<really_erase_my_files> is not set, if the output file already exists, |
7cab3ab7 |
276 | but the aforementioned final stanza is not found, or the checksum |
277 | contained there does not match the generated contents, Loader will |
278 | croak and not touch the file. |
d65cda9e |
279 | |
28b4691d |
280 | You should really be using version control on your schema classes (and all |
281 | of the rest of your code for that matter). Don't blame me if a bug in this |
282 | code wipes something out when it shouldn't have, you've been warned. |
283 | |
996be9ee |
284 | =head1 METHODS |
285 | |
286 | None of these methods are intended for direct invocation by regular |
287 | users of L<DBIx::Class::Schema::Loader>. Anything you can find here |
288 | can also be found via standard L<DBIx::Class::Schema> methods somehow. |
289 | |
290 | =cut |
291 | |
292 | # ensure that a peice of object data is a valid arrayref, creating |
293 | # an empty one or encapsulating whatever's there. |
294 | sub _ensure_arrayref { |
295 | my $self = shift; |
296 | |
297 | foreach (@_) { |
298 | $self->{$_} ||= []; |
299 | $self->{$_} = [ $self->{$_} ] |
300 | unless ref $self->{$_} eq 'ARRAY'; |
301 | } |
302 | } |
303 | |
304 | =head2 new |
305 | |
306 | Constructor for L<DBIx::Class::Schema::Loader::Base>, used internally |
307 | by L<DBIx::Class::Schema::Loader>. |
308 | |
309 | =cut |
310 | |
311 | sub new { |
312 | my ( $class, %args ) = @_; |
313 | |
314 | my $self = { %args }; |
315 | |
316 | bless $self => $class; |
317 | |
996be9ee |
318 | $self->_ensure_arrayref(qw/additional_classes |
319 | additional_base_classes |
320 | left_base_classes |
321 | components |
322 | resultset_components |
323 | /); |
324 | |
325 | push(@{$self->{components}}, 'ResultSetManager') |
326 | if @{$self->{resultset_components}}; |
327 | |
328 | $self->{monikers} = {}; |
329 | $self->{classes} = {}; |
330 | |
996be9ee |
331 | $self->{schema_class} ||= ( ref $self->{schema} || $self->{schema} ); |
332 | $self->{schema} ||= $self->{schema_class}; |
333 | |
28b4691d |
334 | croak "dump_overwrite is deprecated. Please read the" |
335 | . " DBIx::Class::Schema::Loader::Base documentation" |
336 | if $self->{dump_overwrite}; |
337 | |
af31090c |
338 | $self->{dynamic} = ! $self->{dump_directory}; |
79193756 |
339 | $self->{temp_directory} ||= File::Temp::tempdir( 'dbicXXXX', |
af31090c |
340 | TMPDIR => 1, |
341 | CLEANUP => 1, |
342 | ); |
343 | |
79193756 |
344 | $self->{dump_directory} ||= $self->{temp_directory}; |
345 | |
01012543 |
346 | $self->version_to_dump($DBIx::Class::Schema::Loader::VERSION); |
1c95b304 |
347 | $self->schema_version_to_dump($DBIx::Class::Schema::Loader::VERSION); |
01012543 |
348 | |
a8d229ff |
349 | if (not ref $self->naming && defined $self->naming) { |
350 | my $naming_ver = $self->naming;; |
351 | $self->{naming} = { |
352 | relationships => $naming_ver, |
353 | monikers => $naming_ver, |
354 | }; |
355 | } |
356 | |
7824616e |
357 | $self->_check_back_compat; |
9c465d2c |
358 | |
7824616e |
359 | $self; |
360 | } |
af31090c |
361 | |
7824616e |
362 | sub _check_back_compat { |
363 | my ($self) = @_; |
e8ad6491 |
364 | |
a8d229ff |
365 | # dynamic schemas will always be in 0.04006 mode, unless overridden |
106a976a |
366 | if ($self->dynamic) { |
fb3bb595 |
367 | # just in case, though no one is likely to dump a dynamic schema |
1c95b304 |
368 | $self->schema_version_to_dump('0.04006'); |
a8d229ff |
369 | |
370 | $self->naming->{relationships} ||= 'v4'; |
371 | $self->naming->{monikers} ||= 'v4'; |
372 | |
01012543 |
373 | return; |
374 | } |
375 | |
376 | # otherwise check if we need backcompat mode for a static schema |
7824616e |
377 | my $filename = $self->_get_dump_filename($self->schema_class); |
378 | return unless -e $filename; |
379 | |
380 | open(my $fh, '<', $filename) |
381 | or croak "Cannot open '$filename' for reading: $!"; |
382 | |
383 | while (<$fh>) { |
01012543 |
384 | if (/^# Created by DBIx::Class::Schema::Loader v((\d+)\.(\d+))/) { |
385 | my $real_ver = $1; |
a8d229ff |
386 | |
387 | $self->schema_version_to_dump($real_ver); |
388 | |
389 | # XXX when we go past .0 this will need fixing |
390 | my ($v) = $real_ver =~ /([1-9])/; |
391 | $v = "v$v"; |
392 | |
393 | $self->naming->{relationships} ||= $v; |
394 | $self->naming->{monikers} ||= $v; |
395 | |
7824616e |
396 | last; |
397 | } |
398 | } |
399 | close $fh; |
996be9ee |
400 | } |
401 | |
419a2eeb |
402 | sub _find_file_in_inc { |
403 | my ($self, $file) = @_; |
404 | |
405 | foreach my $prefix (@INC) { |
af31090c |
406 | my $fullpath = File::Spec->catfile($prefix, $file); |
407 | return $fullpath if -f $fullpath |
408 | and Cwd::abs_path($fullpath) ne |
409 | Cwd::abs_path(File::Spec->catfile($self->dump_directory, $file)) || ''; |
419a2eeb |
410 | } |
411 | |
412 | return; |
413 | } |
414 | |
fb3bb595 |
415 | sub _class_path { |
f96ef30f |
416 | my ($self, $class) = @_; |
417 | |
418 | my $class_path = $class; |
419 | $class_path =~ s{::}{/}g; |
420 | $class_path .= '.pm'; |
421 | |
fb3bb595 |
422 | return $class_path; |
423 | } |
424 | |
425 | sub _find_class_in_inc { |
426 | my ($self, $class) = @_; |
427 | |
428 | return $self->_find_file_in_inc($self->_class_path($class)); |
429 | } |
430 | |
431 | sub _load_external { |
432 | my ($self, $class) = @_; |
433 | |
434 | my $real_inc_path = $self->_find_class_in_inc($class); |
f96ef30f |
435 | |
af31090c |
436 | return if !$real_inc_path; |
f96ef30f |
437 | |
438 | # If we make it to here, we loaded an external definition |
439 | warn qq/# Loaded external class definition for '$class'\n/ |
440 | if $self->debug; |
441 | |
f96ef30f |
442 | open(my $fh, '<', $real_inc_path) |
443 | or croak "Failed to open '$real_inc_path' for reading: $!"; |
444 | $self->_ext_stmt($class, |
565ca24d |
445 | qq|# These lines were loaded from '$real_inc_path' found in \@INC.\n| |
446 | .qq|# They are now part of the custom portion of this file\n| |
447 | .qq|# for you to hand-edit. If you do not either delete\n| |
448 | .qq|# this section or remove that file from \@INC, this section\n| |
449 | .qq|# will be repeated redundantly when you re-create this\n| |
450 | .qq|# file again via Loader!\n| |
f96ef30f |
451 | ); |
452 | while(<$fh>) { |
453 | chomp; |
454 | $self->_ext_stmt($class, $_); |
996be9ee |
455 | } |
f96ef30f |
456 | $self->_ext_stmt($class, |
70b72fab |
457 | qq|# End of lines loaded from '$real_inc_path' | |
f96ef30f |
458 | ); |
459 | close($fh) |
460 | or croak "Failed to close $real_inc_path: $!"; |
106a976a |
461 | |
dd5f03fc |
462 | if ($self->dynamic) { # load the class too |
9e8033c1 |
463 | # turn off redefined warnings |
dd5f03fc |
464 | local $SIG{__WARN__} = sub {}; |
9e8033c1 |
465 | do $real_inc_path; |
dd5f03fc |
466 | die $@ if $@; |
9e8033c1 |
467 | } |
996be9ee |
468 | } |
469 | |
470 | =head2 load |
471 | |
472 | Does the actual schema-construction work. |
473 | |
474 | =cut |
475 | |
476 | sub load { |
477 | my $self = shift; |
478 | |
b97c2c1e |
479 | $self->_load_tables($self->_tables_list); |
480 | } |
481 | |
482 | =head2 rescan |
483 | |
a60b5b8d |
484 | Arguments: schema |
485 | |
b97c2c1e |
486 | Rescan the database for newly added tables. Does |
a60b5b8d |
487 | not process drops or changes. Returns a list of |
488 | the newly added table monikers. |
489 | |
490 | The schema argument should be the schema class |
491 | or object to be affected. It should probably |
492 | be derived from the original schema_class used |
493 | during L</load>. |
b97c2c1e |
494 | |
495 | =cut |
496 | |
497 | sub rescan { |
a60b5b8d |
498 | my ($self, $schema) = @_; |
499 | |
500 | $self->{schema} = $schema; |
7824616e |
501 | $self->_relbuilder->{schema} = $schema; |
b97c2c1e |
502 | |
503 | my @created; |
504 | my @current = $self->_tables_list; |
505 | foreach my $table ($self->_tables_list) { |
506 | if(!exists $self->{_tables}->{$table}) { |
507 | push(@created, $table); |
508 | } |
509 | } |
510 | |
c39e3507 |
511 | my $loaded = $self->_load_tables(@created); |
a60b5b8d |
512 | |
c39e3507 |
513 | return map { $self->monikers->{$_} } @$loaded; |
b97c2c1e |
514 | } |
515 | |
7824616e |
516 | sub _relbuilder { |
517 | my ($self) = @_; |
3fed44ca |
518 | |
519 | return if $self->{skip_relationships}; |
520 | |
a8d229ff |
521 | if ($self->naming->{relationships} eq 'v4') { |
522 | require DBIx::Class::Schema::Loader::RelBuilder::Compat::v0_040; |
523 | return $self->{relbuilder} ||= |
524 | DBIx::Class::Schema::Loader::RelBuilder::Compat::v0_040->new( |
525 | $self->schema, $self->inflect_plural, $self->inflect_singular |
526 | ); |
527 | } |
528 | |
7824616e |
529 | $self->{relbuilder} ||= DBIx::Class::Schema::Loader::RelBuilder->new( |
530 | $self->schema, $self->inflect_plural, $self->inflect_singular |
531 | ); |
532 | } |
533 | |
b97c2c1e |
534 | sub _load_tables { |
535 | my ($self, @tables) = @_; |
536 | |
f96ef30f |
537 | # First, use _tables_list with constraint and exclude |
538 | # to get a list of tables to operate on |
539 | |
540 | my $constraint = $self->constraint; |
541 | my $exclude = $self->exclude; |
f96ef30f |
542 | |
b97c2c1e |
543 | @tables = grep { /$constraint/ } @tables if $constraint; |
544 | @tables = grep { ! /$exclude/ } @tables if $exclude; |
f96ef30f |
545 | |
b97c2c1e |
546 | # Save the new tables to the tables list |
a60b5b8d |
547 | foreach (@tables) { |
548 | $self->{_tables}->{$_} = 1; |
549 | } |
f96ef30f |
550 | |
af31090c |
551 | $self->_make_src_class($_) for @tables; |
f96ef30f |
552 | $self->_setup_src_meta($_) for @tables; |
553 | |
e8ad6491 |
554 | if(!$self->skip_relationships) { |
181cc907 |
555 | # The relationship loader needs a working schema |
af31090c |
556 | $self->{quiet} = 1; |
79193756 |
557 | local $self->{dump_directory} = $self->{temp_directory}; |
106a976a |
558 | $self->_reload_classes(\@tables); |
e8ad6491 |
559 | $self->_load_relationships($_) for @tables; |
af31090c |
560 | $self->{quiet} = 0; |
79193756 |
561 | |
562 | # Remove that temp dir from INC so it doesn't get reloaded |
563 | @INC = grep { $_ ne $self->{dump_directory} } @INC; |
e8ad6491 |
564 | } |
565 | |
f96ef30f |
566 | $self->_load_external($_) |
75451704 |
567 | for map { $self->classes->{$_} } @tables; |
f96ef30f |
568 | |
106a976a |
569 | # Reload without unloading first to preserve any symbols from external |
570 | # packages. |
571 | $self->_reload_classes(\@tables, 0); |
996be9ee |
572 | |
5223f24a |
573 | # Drop temporary cache |
574 | delete $self->{_cache}; |
575 | |
c39e3507 |
576 | return \@tables; |
996be9ee |
577 | } |
578 | |
af31090c |
579 | sub _reload_classes { |
106a976a |
580 | my ($self, $tables, $unload) = @_; |
581 | |
582 | my @tables = @$tables; |
583 | $unload = 1 unless defined $unload; |
181cc907 |
584 | |
4daef04f |
585 | # so that we don't repeat custom sections |
586 | @INC = grep $_ ne $self->dump_directory, @INC; |
587 | |
181cc907 |
588 | $self->_dump_to_dir(map { $self->classes->{$_} } @tables); |
e9b8719e |
589 | |
590 | unshift @INC, $self->dump_directory; |
af31090c |
591 | |
706ef173 |
592 | my @to_register; |
593 | my %have_source = map { $_ => $self->schema->source($_) } |
594 | $self->schema->sources; |
595 | |
181cc907 |
596 | for my $table (@tables) { |
597 | my $moniker = $self->monikers->{$table}; |
598 | my $class = $self->classes->{$table}; |
0ae6b65d |
599 | |
600 | { |
601 | no warnings 'redefine'; |
602 | local *Class::C3::reinitialize = sub {}; |
603 | use warnings; |
604 | |
106a976a |
605 | Class::Unload->unload($class) if $unload; |
706ef173 |
606 | my ($source, $resultset_class); |
607 | if ( |
608 | ($source = $have_source{$moniker}) |
609 | && ($resultset_class = $source->resultset_class) |
610 | && ($resultset_class ne 'DBIx::Class::ResultSet') |
611 | ) { |
612 | my $has_file = Class::Inspector->loaded_filename($resultset_class); |
106a976a |
613 | Class::Unload->unload($resultset_class) if $unload; |
614 | $self->_reload_class($resultset_class) if $has_file; |
0ae6b65d |
615 | } |
106a976a |
616 | $self->_reload_class($class); |
af31090c |
617 | } |
706ef173 |
618 | push @to_register, [$moniker, $class]; |
619 | } |
af31090c |
620 | |
706ef173 |
621 | Class::C3->reinitialize; |
622 | for (@to_register) { |
623 | $self->schema->register_class(@$_); |
af31090c |
624 | } |
625 | } |
626 | |
106a976a |
627 | # We use this instead of ensure_class_loaded when there are package symbols we |
628 | # want to preserve. |
629 | sub _reload_class { |
630 | my ($self, $class) = @_; |
631 | |
632 | my $class_path = $self->_class_path($class); |
633 | delete $INC{ $class_path }; |
634 | eval "require $class;"; |
635 | } |
636 | |
996be9ee |
637 | sub _get_dump_filename { |
638 | my ($self, $class) = (@_); |
639 | |
640 | $class =~ s{::}{/}g; |
641 | return $self->dump_directory . q{/} . $class . q{.pm}; |
642 | } |
643 | |
644 | sub _ensure_dump_subdirs { |
645 | my ($self, $class) = (@_); |
646 | |
647 | my @name_parts = split(/::/, $class); |
dd03ee1a |
648 | pop @name_parts; # we don't care about the very last element, |
649 | # which is a filename |
650 | |
996be9ee |
651 | my $dir = $self->dump_directory; |
7cab3ab7 |
652 | while (1) { |
653 | if(!-d $dir) { |
25328cc4 |
654 | mkdir($dir) or croak "mkdir('$dir') failed: $!"; |
996be9ee |
655 | } |
7cab3ab7 |
656 | last if !@name_parts; |
657 | $dir = File::Spec->catdir($dir, shift @name_parts); |
996be9ee |
658 | } |
659 | } |
660 | |
661 | sub _dump_to_dir { |
af31090c |
662 | my ($self, @classes) = @_; |
996be9ee |
663 | |
fc2b71fd |
664 | my $schema_class = $self->schema_class; |
9c9c2f2b |
665 | my $schema_base_class = $self->schema_base_class || 'DBIx::Class::Schema'; |
996be9ee |
666 | |
e9b8719e |
667 | my $target_dir = $self->dump_directory; |
af31090c |
668 | warn "Dumping manual schema for $schema_class to directory $target_dir ...\n" |
669 | unless $self->{dynamic} or $self->{quiet}; |
996be9ee |
670 | |
7cab3ab7 |
671 | my $schema_text = |
672 | qq|package $schema_class;\n\n| |
b4dcbcc5 |
673 | . qq|# Created by DBIx::Class::Schema::Loader\n| |
674 | . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n| |
7cab3ab7 |
675 | . qq|use strict;\nuse warnings;\n\n| |
9c9c2f2b |
676 | . qq|use base '$schema_base_class';\n\n|; |
f44ecc2f |
677 | |
f44ecc2f |
678 | if ($self->use_namespaces) { |
679 | $schema_text .= qq|__PACKAGE__->load_namespaces|; |
680 | my $namespace_options; |
681 | for my $attr (qw(result_namespace |
682 | resultset_namespace |
683 | default_resultset_class)) { |
684 | if ($self->$attr) { |
685 | $namespace_options .= qq| $attr => '| . $self->$attr . qq|',\n| |
686 | } |
687 | } |
688 | $schema_text .= qq|(\n$namespace_options)| if $namespace_options; |
689 | $schema_text .= qq|;\n|; |
690 | } |
691 | else { |
692 | $schema_text .= qq|__PACKAGE__->load_classes;\n|; |
f44ecc2f |
693 | } |
996be9ee |
694 | |
1c95b304 |
695 | { |
696 | local $self->{version_to_dump} = $self->schema_version_to_dump; |
697 | $self->_write_classfile($schema_class, $schema_text); |
698 | } |
996be9ee |
699 | |
2229729e |
700 | my $result_base_class = $self->result_base_class || 'DBIx::Class::Core'; |
9c9c2f2b |
701 | |
af31090c |
702 | foreach my $src_class (@classes) { |
7cab3ab7 |
703 | my $src_text = |
704 | qq|package $src_class;\n\n| |
b4dcbcc5 |
705 | . qq|# Created by DBIx::Class::Schema::Loader\n| |
706 | . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n| |
7cab3ab7 |
707 | . qq|use strict;\nuse warnings;\n\n| |
9c9c2f2b |
708 | . qq|use base '$result_base_class';\n\n|; |
996be9ee |
709 | |
7cab3ab7 |
710 | $self->_write_classfile($src_class, $src_text); |
02356864 |
711 | } |
996be9ee |
712 | |
af31090c |
713 | warn "Schema dump completed.\n" unless $self->{dynamic} or $self->{quiet}; |
714 | |
7cab3ab7 |
715 | } |
716 | |
79193756 |
717 | sub _sig_comment { |
718 | my ($self, $version, $ts) = @_; |
719 | return qq|\n\n# Created by DBIx::Class::Schema::Loader| |
720 | . qq| v| . $version |
721 | . q| @ | . $ts |
722 | . qq|\n# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:|; |
723 | } |
724 | |
7cab3ab7 |
725 | sub _write_classfile { |
726 | my ($self, $class, $text) = @_; |
727 | |
728 | my $filename = $self->_get_dump_filename($class); |
729 | $self->_ensure_dump_subdirs($class); |
730 | |
28b4691d |
731 | if (-f $filename && $self->really_erase_my_files) { |
7cab3ab7 |
732 | warn "Deleting existing file '$filename' due to " |
af31090c |
733 | . "'really_erase_my_files' setting\n" unless $self->{quiet}; |
7cab3ab7 |
734 | unlink($filename); |
735 | } |
736 | |
79193756 |
737 | my ($custom_content, $old_md5, $old_ver, $old_ts) = $self->_get_custom_content($class, $filename); |
17ca645f |
738 | |
7cab3ab7 |
739 | $text .= qq|$_\n| |
740 | for @{$self->{_dump_storage}->{$class} || []}; |
741 | |
79193756 |
742 | # Check and see if the dump is infact differnt |
743 | |
744 | my $compare_to; |
745 | if ($old_md5) { |
746 | $compare_to = $text . $self->_sig_comment($old_ver, $old_ts); |
747 | |
748 | |
749 | if (Digest::MD5::md5_base64($compare_to) eq $old_md5) { |
750 | return; |
751 | } |
752 | } |
753 | |
754 | $text .= $self->_sig_comment( |
01012543 |
755 | $self->version_to_dump, |
79193756 |
756 | POSIX::strftime('%Y-%m-%d %H:%M:%S', localtime) |
757 | ); |
7cab3ab7 |
758 | |
759 | open(my $fh, '>', $filename) |
760 | or croak "Cannot open '$filename' for writing: $!"; |
761 | |
762 | # Write the top half and its MD5 sum |
a4476f41 |
763 | print $fh $text . Digest::MD5::md5_base64($text) . "\n"; |
7cab3ab7 |
764 | |
765 | # Write out anything loaded via external partial class file in @INC |
766 | print $fh qq|$_\n| |
767 | for @{$self->{_ext_storage}->{$class} || []}; |
768 | |
1eea4fb1 |
769 | # Write out any custom content the user has added |
7cab3ab7 |
770 | print $fh $custom_content; |
771 | |
772 | close($fh) |
e9b8719e |
773 | or croak "Error closing '$filename': $!"; |
7cab3ab7 |
774 | } |
775 | |
79193756 |
776 | sub _default_custom_content { |
777 | return qq|\n\n# You can replace this text with custom| |
778 | . qq| content, and it will be preserved on regeneration| |
779 | . qq|\n1;\n|; |
780 | } |
781 | |
7cab3ab7 |
782 | sub _get_custom_content { |
783 | my ($self, $class, $filename) = @_; |
784 | |
79193756 |
785 | return ($self->_default_custom_content) if ! -f $filename; |
786 | |
7cab3ab7 |
787 | open(my $fh, '<', $filename) |
788 | or croak "Cannot open '$filename' for reading: $!"; |
789 | |
790 | my $mark_re = |
419a2eeb |
791 | qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\n}; |
7cab3ab7 |
792 | |
7cab3ab7 |
793 | my $buffer = ''; |
79193756 |
794 | my ($md5, $ts, $ver); |
7cab3ab7 |
795 | while(<$fh>) { |
79193756 |
796 | if(!$md5 && /$mark_re/) { |
797 | $md5 = $2; |
798 | my $line = $1; |
799 | |
800 | # Pull out the previous version and timestamp |
801 | ($ver, $ts) = $buffer =~ m/# Created by DBIx::Class::Schema::Loader v(.*?) @ (.*?)$/s; |
802 | |
803 | $buffer .= $line; |
7cab3ab7 |
804 | croak "Checksum mismatch in '$filename'" |
79193756 |
805 | if Digest::MD5::md5_base64($buffer) ne $md5; |
7cab3ab7 |
806 | |
807 | $buffer = ''; |
808 | } |
809 | else { |
810 | $buffer .= $_; |
811 | } |
996be9ee |
812 | } |
813 | |
28b4691d |
814 | croak "Cannot not overwrite '$filename' without 'really_erase_my_files'," |
419a2eeb |
815 | . " it does not appear to have been generated by Loader" |
79193756 |
816 | if !$md5; |
5ef3c771 |
817 | |
79193756 |
818 | # Default custom content: |
819 | $buffer ||= $self->_default_custom_content; |
5ef3c771 |
820 | |
79193756 |
821 | return ($buffer, $md5, $ver, $ts); |
996be9ee |
822 | } |
823 | |
824 | sub _use { |
825 | my $self = shift; |
826 | my $target = shift; |
827 | |
828 | foreach (@_) { |
cb54990b |
829 | warn "$target: use $_;" if $self->debug; |
996be9ee |
830 | $self->_raw_stmt($target, "use $_;"); |
996be9ee |
831 | } |
832 | } |
833 | |
834 | sub _inject { |
835 | my $self = shift; |
836 | my $target = shift; |
837 | my $schema_class = $self->schema_class; |
838 | |
af31090c |
839 | my $blist = join(q{ }, @_); |
840 | warn "$target: use base qw/ $blist /;" if $self->debug && @_; |
841 | $self->_raw_stmt($target, "use base qw/ $blist /;") if @_; |
996be9ee |
842 | } |
843 | |
f96ef30f |
844 | # Create class with applicable bases, setup monikers, etc |
845 | sub _make_src_class { |
846 | my ($self, $table) = @_; |
996be9ee |
847 | |
a13b2803 |
848 | my $schema = $self->schema; |
849 | my $schema_class = $self->schema_class; |
996be9ee |
850 | |
f96ef30f |
851 | my $table_moniker = $self->_table2moniker($table); |
f44ecc2f |
852 | my @result_namespace = ($schema_class); |
853 | if ($self->use_namespaces) { |
854 | my $result_namespace = $self->result_namespace || 'Result'; |
855 | if ($result_namespace =~ /^\+(.*)/) { |
856 | # Fully qualified namespace |
857 | @result_namespace = ($1) |
858 | } |
859 | else { |
860 | # Relative namespace |
861 | push @result_namespace, $result_namespace; |
862 | } |
863 | } |
864 | my $table_class = join(q{::}, @result_namespace, $table_moniker); |
996be9ee |
865 | |
f96ef30f |
866 | my $table_normalized = lc $table; |
867 | $self->classes->{$table} = $table_class; |
868 | $self->classes->{$table_normalized} = $table_class; |
869 | $self->monikers->{$table} = $table_moniker; |
870 | $self->monikers->{$table_normalized} = $table_moniker; |
996be9ee |
871 | |
f96ef30f |
872 | $self->_use ($table_class, @{$self->additional_classes}); |
af31090c |
873 | $self->_inject($table_class, @{$self->left_base_classes}); |
996be9ee |
874 | |
2229729e |
875 | if (my @components = @{ $self->components }) { |
876 | $self->_dbic_stmt($table_class, 'load_components', @components); |
877 | } |
996be9ee |
878 | |
f96ef30f |
879 | $self->_dbic_stmt($table_class, 'load_resultset_components', @{$self->resultset_components}) |
880 | if @{$self->resultset_components}; |
af31090c |
881 | $self->_inject($table_class, @{$self->additional_base_classes}); |
f96ef30f |
882 | } |
996be9ee |
883 | |
af31090c |
884 | # Set up metadata (cols, pks, etc) |
f96ef30f |
885 | sub _setup_src_meta { |
886 | my ($self, $table) = @_; |
996be9ee |
887 | |
f96ef30f |
888 | my $schema = $self->schema; |
889 | my $schema_class = $self->schema_class; |
a13b2803 |
890 | |
f96ef30f |
891 | my $table_class = $self->classes->{$table}; |
892 | my $table_moniker = $self->monikers->{$table}; |
996be9ee |
893 | |
ff30991a |
894 | my $table_name = $table; |
895 | my $name_sep = $self->schema->storage->sql_maker->name_sep; |
896 | |
c177d483 |
897 | if ($name_sep && $table_name =~ /\Q$name_sep\E/) { |
ff30991a |
898 | $table_name = \ $self->_quote_table_name($table_name); |
899 | } |
900 | |
901 | $self->_dbic_stmt($table_class,'table',$table_name); |
996be9ee |
902 | |
f96ef30f |
903 | my $cols = $self->_table_columns($table); |
904 | my $col_info; |
905 | eval { $col_info = $self->_columns_info_for($table) }; |
906 | if($@) { |
907 | $self->_dbic_stmt($table_class,'add_columns',@$cols); |
908 | } |
909 | else { |
0906d55b |
910 | if ($self->_is_case_sensitive) { |
911 | for my $col (keys %$col_info) { |
912 | $col_info->{$col}{accessor} = lc $col |
913 | if $col ne lc($col); |
914 | } |
915 | } else { |
916 | $col_info = { map { lc($_), $col_info->{$_} } keys %$col_info }; |
c9373b79 |
917 | } |
918 | |
e7213f4f |
919 | my $fks = $self->_table_fk_info($table); |
565335e6 |
920 | |
e7213f4f |
921 | for my $fkdef (@$fks) { |
922 | for my $col (@{ $fkdef->{local_columns} }) { |
565335e6 |
923 | $col_info->{$col}{is_foreign_key} = 1; |
e7213f4f |
924 | } |
925 | } |
f96ef30f |
926 | $self->_dbic_stmt( |
927 | $table_class, |
928 | 'add_columns', |
565335e6 |
929 | map { $_, ($col_info->{$_}||{}) } @$cols |
f96ef30f |
930 | ); |
996be9ee |
931 | } |
932 | |
d70c335f |
933 | my %uniq_tag; # used to eliminate duplicate uniqs |
934 | |
f96ef30f |
935 | my $pks = $self->_table_pk_info($table) || []; |
936 | @$pks ? $self->_dbic_stmt($table_class,'set_primary_key',@$pks) |
937 | : carp("$table has no primary key"); |
d70c335f |
938 | $uniq_tag{ join("\0", @$pks) }++ if @$pks; # pk is a uniq |
996be9ee |
939 | |
f96ef30f |
940 | my $uniqs = $self->_table_uniq_info($table) || []; |
d70c335f |
941 | for (@$uniqs) { |
942 | my ($name, $cols) = @$_; |
943 | next if $uniq_tag{ join("\0", @$cols) }++; # skip duplicates |
944 | $self->_dbic_stmt($table_class,'add_unique_constraint', $name, $cols); |
945 | } |
946 | |
996be9ee |
947 | } |
948 | |
949 | =head2 tables |
950 | |
951 | Returns a sorted list of loaded tables, using the original database table |
952 | names. |
953 | |
954 | =cut |
955 | |
956 | sub tables { |
957 | my $self = shift; |
958 | |
b97c2c1e |
959 | return keys %{$self->_tables}; |
996be9ee |
960 | } |
961 | |
962 | # Make a moniker from a table |
c39e403e |
963 | sub _default_table2moniker { |
964 | my ($self, $table) = @_; |
965 | |
a8d229ff |
966 | if ($self->naming->{monikers} eq 'v4') { |
967 | return join '', map ucfirst, split /[\W_]+/, lc $table; |
968 | } |
969 | |
c39e403e |
970 | return join '', map ucfirst, split /[\W_]+/, |
971 | Lingua::EN::Inflect::Number::to_S(lc $table); |
972 | } |
973 | |
996be9ee |
974 | sub _table2moniker { |
975 | my ( $self, $table ) = @_; |
976 | |
977 | my $moniker; |
978 | |
979 | if( ref $self->moniker_map eq 'HASH' ) { |
980 | $moniker = $self->moniker_map->{$table}; |
981 | } |
982 | elsif( ref $self->moniker_map eq 'CODE' ) { |
983 | $moniker = $self->moniker_map->($table); |
984 | } |
985 | |
c39e403e |
986 | $moniker ||= $self->_default_table2moniker($table); |
996be9ee |
987 | |
988 | return $moniker; |
989 | } |
990 | |
991 | sub _load_relationships { |
e8ad6491 |
992 | my ($self, $table) = @_; |
996be9ee |
993 | |
e8ad6491 |
994 | my $tbl_fk_info = $self->_table_fk_info($table); |
995 | foreach my $fkdef (@$tbl_fk_info) { |
996 | $fkdef->{remote_source} = |
997 | $self->monikers->{delete $fkdef->{remote_table}}; |
996be9ee |
998 | } |
26f1c8c9 |
999 | my $tbl_uniq_info = $self->_table_uniq_info($table); |
996be9ee |
1000 | |
e8ad6491 |
1001 | my $local_moniker = $self->monikers->{$table}; |
7824616e |
1002 | my $rel_stmts = $self->_relbuilder->generate_code($local_moniker, $tbl_fk_info, $tbl_uniq_info); |
996be9ee |
1003 | |
996be9ee |
1004 | foreach my $src_class (sort keys %$rel_stmts) { |
1005 | my $src_stmts = $rel_stmts->{$src_class}; |
1006 | foreach my $stmt (@$src_stmts) { |
1007 | $self->_dbic_stmt($src_class,$stmt->{method},@{$stmt->{args}}); |
1008 | } |
1009 | } |
1010 | } |
1011 | |
1012 | # Overload these in driver class: |
1013 | |
1014 | # Returns an arrayref of column names |
1015 | sub _table_columns { croak "ABSTRACT METHOD" } |
1016 | |
1017 | # Returns arrayref of pk col names |
1018 | sub _table_pk_info { croak "ABSTRACT METHOD" } |
1019 | |
1020 | # Returns an arrayref of uniqs [ [ foo => [ col1, col2 ] ], [ bar => [ ... ] ] ] |
1021 | sub _table_uniq_info { croak "ABSTRACT METHOD" } |
1022 | |
1023 | # Returns an arrayref of foreign key constraints, each |
1024 | # being a hashref with 3 keys: |
1025 | # local_columns (arrayref), remote_columns (arrayref), remote_table |
1026 | sub _table_fk_info { croak "ABSTRACT METHOD" } |
1027 | |
1028 | # Returns an array of lower case table names |
1029 | sub _tables_list { croak "ABSTRACT METHOD" } |
1030 | |
1031 | # Execute a constructive DBIC class method, with debug/dump_to_dir hooks. |
1032 | sub _dbic_stmt { |
1033 | my $self = shift; |
1034 | my $class = shift; |
1035 | my $method = shift; |
fbcfebdd |
1036 | if ( $method eq 'table' ) { |
1037 | my ($table) = @_; |
1038 | $self->_pod( $class, "=head1 NAME" ); |
1039 | my $table_descr = $class; |
1040 | if ( $self->can('_table_comment') ) { |
1041 | my $comment = $self->_table_comment($table); |
1042 | $table_descr .= " - " . $comment if $comment; |
1043 | } |
1044 | $self->{_class2table}{ $class } = $table; |
1045 | $self->_pod( $class, $table_descr ); |
1046 | $self->_pod_cut( $class ); |
1047 | } elsif ( $method eq 'add_columns' ) { |
1048 | $self->_pod( $class, "=head1 ACCESSORS" ); |
1049 | my $i = 0; |
1050 | foreach ( @_ ) { |
1051 | $i++; |
1052 | next unless $i % 2; |
1053 | $self->_pod( $class, '=head2 ' . $_ ); |
1054 | my $comment; |
1055 | $comment = $self->_column_comment( $self->{_class2table}{$class}, ($i - 1) / 2 + 1 ) if $self->can('_column_comment'); |
1056 | $self->_pod( $class, $comment ) if $comment; |
1057 | } |
1058 | $self->_pod_cut( $class ); |
1059 | } elsif ( $method =~ /^(belongs_to|has_many|might_have)$/ ) { |
1060 | $self->_pod( $class, "=head1 RELATIONS" ) unless $self->{_relations_started} { $class } ; |
1061 | my ( $accessor, $rel_class ) = @_; |
1062 | $self->_pod( $class, "=head2 $accessor" ); |
1063 | $self->_pod( $class, 'Type: ' . $method ); |
1064 | $self->_pod( $class, "Related object: L<$rel_class>" ); |
1065 | $self->_pod_cut( $class ); |
1066 | $self->{_relations_started} { $class } = 1; |
1067 | } |
996be9ee |
1068 | my $args = dump(@_); |
1069 | $args = '(' . $args . ')' if @_ < 2; |
1070 | my $stmt = $method . $args . q{;}; |
1071 | |
1072 | warn qq|$class\->$stmt\n| if $self->debug; |
996be9ee |
1073 | $self->_raw_stmt($class, '__PACKAGE__->' . $stmt); |
fbcfebdd |
1074 | return; |
996be9ee |
1075 | } |
1076 | |
fbcfebdd |
1077 | # Stores a POD documentation |
1078 | sub _pod { |
1079 | my ($self, $class, $stmt) = @_; |
1080 | $self->_raw_stmt( $class, "\n" . $stmt ); |
1081 | } |
1082 | |
1083 | sub _pod_cut { |
1084 | my ($self, $class ) = @_; |
1085 | $self->_raw_stmt( $class, "\n=cut\n" ); |
1086 | } |
1087 | |
1088 | |
996be9ee |
1089 | # Store a raw source line for a class (for dumping purposes) |
1090 | sub _raw_stmt { |
1091 | my ($self, $class, $stmt) = @_; |
af31090c |
1092 | push(@{$self->{_dump_storage}->{$class}}, $stmt); |
996be9ee |
1093 | } |
1094 | |
7cab3ab7 |
1095 | # Like above, but separately for the externally loaded stuff |
1096 | sub _ext_stmt { |
1097 | my ($self, $class, $stmt) = @_; |
af31090c |
1098 | push(@{$self->{_ext_storage}->{$class}}, $stmt); |
7cab3ab7 |
1099 | } |
1100 | |
565335e6 |
1101 | sub _quote_table_name { |
1102 | my ($self, $table) = @_; |
1103 | |
1104 | my $qt = $self->schema->storage->sql_maker->quote_char; |
1105 | |
c177d483 |
1106 | return $table unless $qt; |
1107 | |
565335e6 |
1108 | if (ref $qt) { |
1109 | return $qt->[0] . $table . $qt->[1]; |
1110 | } |
1111 | |
1112 | return $qt . $table . $qt; |
1113 | } |
1114 | |
1115 | sub _is_case_sensitive { 0 } |
1116 | |
996be9ee |
1117 | =head2 monikers |
1118 | |
8f9d7ce5 |
1119 | Returns a hashref of loaded table to moniker mappings. There will |
996be9ee |
1120 | be two entries for each table, the original name and the "normalized" |
1121 | name, in the case that the two are different (such as databases |
1122 | that like uppercase table names, or preserve your original mixed-case |
1123 | definitions, or what-have-you). |
1124 | |
1125 | =head2 classes |
1126 | |
8f9d7ce5 |
1127 | Returns a hashref of table to class mappings. In some cases it will |
996be9ee |
1128 | contain multiple entries per table for the original and normalized table |
1129 | names, as above in L</monikers>. |
1130 | |
1131 | =head1 SEE ALSO |
1132 | |
1133 | L<DBIx::Class::Schema::Loader> |
1134 | |
be80bba7 |
1135 | =head1 AUTHOR |
1136 | |
1137 | See L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
1138 | |
1139 | =head1 LICENSE |
1140 | |
1141 | This library is free software; you can redistribute it and/or modify it under |
1142 | the same terms as Perl itself. |
1143 | |
996be9ee |
1144 | =cut |
1145 | |
1146 | 1; |