1 package DBIx::Class::Schema::Loader::Base;
5 use base qw/Class::Accessor::Grouped Class::C3::Componentised/;
6 use namespace::autoclean;
8 use Carp::Clan qw/^DBIx::Class/;
9 use DBIx::Class::Schema::Loader::RelBuilder;
10 use Data::Dump qw/ dump /;
15 use Lingua::EN::Inflect::Number qw//;
18 use Class::Inspector ();
19 use Data::Dumper::Concise;
20 use Scalar::Util 'looks_like_number';
21 use File::Slurp 'slurp';
24 our $VERSION = '0.05003';
26 __PACKAGE__->mk_group_ro_accessors('simple', qw/
33 additional_base_classes
48 default_resultset_class
51 overwrite_modifications
69 __PACKAGE__->mk_group_accessors('simple', qw/
71 schema_version_to_dump
73 _upgrading_from_load_classes
74 _downgrading_to_load_classes
75 _rewriting_result_namespace
80 pod_comment_spillover_length
85 DBIx::Class::Schema::Loader::Base - Base DBIx::Class::Schema::Loader Implementation.
89 See L<DBIx::Class::Schema::Loader>
93 This is the base class for the storage-specific C<DBIx::Class::Schema::*>
94 classes, and implements the common functionality between them.
96 =head1 CONSTRUCTOR OPTIONS
98 These constructor options are the base options for
99 L<DBIx::Class::Schema::Loader/loader_options>. Available constructor options are:
101 =head2 skip_relationships
103 Skip setting up relationships. The default is to attempt the loading
106 =head2 skip_load_external
108 Skip loading of other classes in @INC. The default is to merge all other classes
109 with the same name found in @INC into the schema file we are creating.
113 Static schemas (ones dumped to disk) will, by default, use the new-style 0.05XXX
114 relationship names and singularized Results, unless you're overwriting an
115 existing dump made by a 0.04XXX version of L<DBIx::Class::Schema::Loader>, in
116 which case the backward compatible RelBuilder will be activated, and
117 singularization will be turned off.
123 will disable the backward-compatible RelBuilder and use
124 the new-style relationship names along with singularized Results, even when
125 overwriting a dump made with an earlier version.
127 The option also takes a hashref:
129 naming => { relationships => 'v5', monikers => 'v4' }
137 How to name relationship accessors.
141 How to name Result classes.
151 Latest default style, whatever that happens to be.
155 Version 0.05XXX style.
159 Version 0.04XXX style.
163 Dynamic schemas will always default to the 0.04XXX relationship names and won't
164 singularize Results for backward compatibility, to activate the new RelBuilder
165 and singularization put this in your C<Schema.pm> file:
167 __PACKAGE__->naming('current');
169 Or if you prefer to use 0.05XXX features but insure that nothing breaks in the
170 next major version upgrade:
172 __PACKAGE__->naming('v5');
176 By default POD will be generated for columns and relationships, using database
177 metadata for the text if available and supported.
179 Reading database metadata (e.g. C<COMMENT ON TABLE some_table ...>) is only
180 supported for Postgres right now.
182 Set this to C<0> to turn off all POD generation.
184 =head2 pod_comment_mode
186 Controls where table comments appear in the generated POD. Smaller table
187 comments are appended to the C<NAME> section of the documentation, and larger
188 ones are inserted into C<DESCRIPTION> instead. You can force a C<DESCRIPTION>
189 section to be generated with the comment always, only use C<NAME>, or choose
190 the length threshold at which the comment is forced into the description.
196 Use C<NAME> section only.
200 Force C<DESCRIPTION> always.
204 Use C<DESCRIPTION> if length > L</pod_comment_spillover_length>, this is the
209 =head2 pod_comment_spillover_length
211 When pod_comment_mode is set to C<auto>, this is the length of the comment at
212 which it will be forced into a separate description section.
216 =head2 relationship_attrs
218 Hashref of attributes to pass to each generated relationship, listed
219 by type. Also supports relationship type 'all', containing options to
220 pass to all generated relationships. Attributes set for more specific
221 relationship types override those set in 'all'.
225 relationship_attrs => {
226 all => { cascade_delete => 0 },
227 has_many => { cascade_delete => 1 },
230 will set the C<cascade_delete> option to 0 for all generated relationships,
231 except for C<has_many>, which will have cascade_delete as 1.
233 NOTE: this option is not supported if v4 backward-compatible naming is
234 set either globally (naming => 'v4') or just for relationships.
238 If set to true, each constructive L<DBIx::Class> statement the loader
239 decides to execute will be C<warn>-ed before execution.
243 Set the name of the schema to load (schema in the sense that your database
244 vendor means it). Does not currently support loading more than one schema
249 Only load tables matching regex. Best specified as a qr// regex.
253 Exclude tables matching regex. Best specified as a qr// regex.
257 Overrides the default table name to moniker translation. Can be either
258 a hashref of table keys and moniker values, or a coderef for a translator
259 function taking a single scalar table name argument and returning
260 a scalar moniker. If the hash entry does not exist, or the function
261 returns a false value, the code falls back to default behavior
264 The default behavior is to singularize the table name, and: C<join '', map
265 ucfirst, split /[\W_]+/, lc $table>, which is to say: lowercase everything,
266 split up the table name into chunks anywhere a non-alpha-numeric character
267 occurs, change the case of first letter of each chunk to upper case, and put
268 the chunks back together. Examples:
270 Table Name | Moniker Name
271 ---------------------------
273 luser_group | LuserGroup
274 luser-opts | LuserOpt
276 =head2 inflect_plural
278 Just like L</moniker_map> above (can be hash/code-ref, falls back to default
279 if hash key does not exist or coderef returns false), but acts as a map
280 for pluralizing relationship names. The default behavior is to utilize
281 L<Lingua::EN::Inflect::Number/to_PL>.
283 =head2 inflect_singular
285 As L</inflect_plural> above, but for singularizing relationship names.
286 Default behavior is to utilize L<Lingua::EN::Inflect::Number/to_S>.
288 =head2 schema_base_class
290 Base class for your schema classes. Defaults to 'DBIx::Class::Schema'.
292 =head2 result_base_class
294 Base class for your table classes (aka result classes). Defaults to
297 =head2 additional_base_classes
299 List of additional base classes all of your table classes will use.
301 =head2 left_base_classes
303 List of additional base classes all of your table classes will use
304 that need to be leftmost.
306 =head2 additional_classes
308 List of additional classes which all of your table classes will use.
312 List of additional components to be loaded into all of your table
313 classes. A good example would be C<ResultSetManager>.
315 =head2 resultset_components
317 List of additional ResultSet components to be loaded into your table
318 classes. A good example would be C<AlwaysRS>. Component
319 C<ResultSetManager> will be automatically added to the above
320 C<components> list if this option is set.
322 =head2 use_namespaces
324 This is now the default, to go back to L<DBIx::Class::Schema/load_classes> pass
327 Generate result class names suitable for
328 L<DBIx::Class::Schema/load_namespaces> and call that instead of
329 L<DBIx::Class::Schema/load_classes>. When using this option you can also
330 specify any of the options for C<load_namespaces> (i.e. C<result_namespace>,
331 C<resultset_namespace>, C<default_resultset_class>), and they will be added
332 to the call (and the generated result class names adjusted appropriately).
334 =head2 dump_directory
336 This option is designed to be a tool to help you transition from this
337 loader to a manually-defined schema when you decide it's time to do so.
339 The value of this option is a perl libdir pathname. Within
340 that directory this module will create a baseline manual
341 L<DBIx::Class::Schema> module set, based on what it creates at runtime
344 The created schema class will have the same classname as the one on
345 which you are setting this option (and the ResultSource classes will be
346 based on this name as well).
348 Normally you wouldn't hard-code this setting in your schema class, as it
349 is meant for one-time manual usage.
351 See L<DBIx::Class::Schema::Loader/dump_to_dir> for examples of the
352 recommended way to access this functionality.
354 =head2 dump_overwrite
356 Deprecated. See L</really_erase_my_files> below, which does *not* mean
357 the same thing as the old C<dump_overwrite> setting from previous releases.
359 =head2 really_erase_my_files
361 Default false. If true, Loader will unconditionally delete any existing
362 files before creating the new ones from scratch when dumping a schema to disk.
364 The default behavior is instead to only replace the top portion of the
365 file, up to and including the final stanza which contains
366 C<# DO NOT MODIFY THIS OR ANYTHING ABOVE!>
367 leaving any customizations you placed after that as they were.
369 When C<really_erase_my_files> is not set, if the output file already exists,
370 but the aforementioned final stanza is not found, or the checksum
371 contained there does not match the generated contents, Loader will
372 croak and not touch the file.
374 You should really be using version control on your schema classes (and all
375 of the rest of your code for that matter). Don't blame me if a bug in this
376 code wipes something out when it shouldn't have, you've been warned.
378 =head2 overwrite_modifications
380 Default false. If false, when updating existing files, Loader will
381 refuse to modify any Loader-generated code that has been modified
382 since its last run (as determined by the checksum Loader put in its
385 If true, Loader will discard any manual modifications that have been
386 made to Loader-generated code.
388 Again, you should be using version control on your schema classes. Be
389 careful with this option.
391 =head2 custom_column_info
393 Hook for adding extra attributes to the
394 L<column_info|DBIx::Class::ResultSource/column_info> for a column.
396 Must be a coderef that returns a hashref with the extra attributes.
398 Receives the table name, column name and column_info.
402 custom_column_info => sub {
403 my ($table_name, $column_name, $column_info) = @_;
405 if ($column_name eq 'dog' && $column_info->{default_value} eq 'snoopy') {
406 return { is_snoopy => 1 };
410 This attribute can also be used to set C<inflate_datetime> on a non-datetime
411 column so it also receives the L</datetime_timezone> and/or L</datetime_locale>.
413 =head2 datetime_timezone
415 Sets the timezone attribute for L<DBIx::Class::InflateColumn::DateTime> for all
416 columns with the DATE/DATETIME/TIMESTAMP data_types.
418 =head2 datetime_locale
420 Sets the locale attribute for L<DBIx::Class::InflateColumn::DateTime> for all
421 columns with the DATE/DATETIME/TIMESTAMP data_types.
425 File in Perl format, which should return a HASH reference, from which to read
430 None of these methods are intended for direct invocation by regular
431 users of L<DBIx::Class::Schema::Loader>. Some are proxied via
432 L<DBIx::Class::Schema::Loader>.
436 my $CURRENT_V = 'v5';
439 schema_base_class result_base_class additional_base_classes
440 left_base_classes additional_classes components resultset_components
443 # ensure that a peice of object data is a valid arrayref, creating
444 # an empty one or encapsulating whatever's there.
445 sub _ensure_arrayref {
450 $self->{$_} = [ $self->{$_} ]
451 unless ref $self->{$_} eq 'ARRAY';
457 Constructor for L<DBIx::Class::Schema::Loader::Base>, used internally
458 by L<DBIx::Class::Schema::Loader>.
463 my ( $class, %args ) = @_;
465 my $self = { %args };
467 bless $self => $class;
469 if (my $config_file = $self->config_file) {
470 my $config_opts = do $config_file;
472 croak "Error reading config from $config_file: $@" if $@;
474 croak "Config file $config_file must be a hashref" unless ref($config_opts) eq 'HASH';
476 while (my ($k, $v) = each %$config_opts) {
477 $self->{$k} = $v unless exists $self->{$k};
481 $self->_ensure_arrayref(qw/additional_classes
482 additional_base_classes
488 $self->_validate_class_args;
490 push(@{$self->{components}}, 'ResultSetManager')
491 if @{$self->{resultset_components}};
493 $self->{monikers} = {};
494 $self->{classes} = {};
495 $self->{_upgrading_classes} = {};
497 $self->{schema_class} ||= ( ref $self->{schema} || $self->{schema} );
498 $self->{schema} ||= $self->{schema_class};
500 croak "dump_overwrite is deprecated. Please read the"
501 . " DBIx::Class::Schema::Loader::Base documentation"
502 if $self->{dump_overwrite};
504 $self->{dynamic} = ! $self->{dump_directory};
505 $self->{temp_directory} ||= File::Temp::tempdir( 'dbicXXXX',
510 $self->{dump_directory} ||= $self->{temp_directory};
512 $self->version_to_dump($DBIx::Class::Schema::Loader::VERSION);
513 $self->schema_version_to_dump($DBIx::Class::Schema::Loader::VERSION);
515 if ((not ref $self->naming) && defined $self->naming) {
516 my $naming_ver = $self->naming;
518 relationships => $naming_ver,
519 monikers => $naming_ver,
524 for (values %{ $self->naming }) {
525 $_ = $CURRENT_V if $_ eq 'current';
528 $self->{naming} ||= {};
530 if ($self->custom_column_info && ref $self->custom_column_info ne 'CODE') {
531 croak 'custom_column_info must be a CODE ref';
534 $self->_check_back_compat;
536 $self->use_namespaces(1) unless defined $self->use_namespaces;
537 $self->generate_pod(1) unless defined $self->generate_pod;
538 $self->pod_comment_mode('auto') unless defined $self->pod_comment_mode;
539 $self->pod_comment_spillover_length(60) unless defined $self->pod_comment_spillover_length;
544 sub _check_back_compat {
547 # dynamic schemas will always be in 0.04006 mode, unless overridden
548 if ($self->dynamic) {
549 # just in case, though no one is likely to dump a dynamic schema
550 $self->schema_version_to_dump('0.04006');
552 if (not %{ $self->naming }) {
553 warn <<EOF unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
555 Dynamic schema detected, will run in 0.04006 mode.
557 Set the 'naming' attribute or the SCHEMA_LOADER_BACKCOMPAT environment variable
558 to disable this warning.
560 Also consider setting 'use_namespaces => 1' if/when upgrading.
562 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 for more
567 $self->_upgrading_from('v4');
570 $self->naming->{relationships} ||= 'v4';
571 $self->naming->{monikers} ||= 'v4';
573 if ($self->use_namespaces) {
574 $self->_upgrading_from_load_classes(1);
577 $self->use_namespaces(0);
583 # otherwise check if we need backcompat mode for a static schema
584 my $filename = $self->_get_dump_filename($self->schema_class);
585 return unless -e $filename;
587 open(my $fh, '<', $filename)
588 or croak "Cannot open '$filename' for reading: $!";
590 my $load_classes = 0;
591 my $result_namespace = '';
594 if (/^__PACKAGE__->load_classes;/) {
596 } elsif (/result_namespace => '([^']+)'/) {
597 $result_namespace = $1;
598 } elsif (my ($real_ver) =
599 /^# Created by DBIx::Class::Schema::Loader v(\d+\.\d+)/) {
601 if ($load_classes && (not defined $self->use_namespaces)) {
602 warn <<"EOF" unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
604 'load_classes;' static schema detected, turning off 'use_namespaces'.
606 Set the 'use_namespaces' attribute or the SCHEMA_LOADER_BACKCOMPAT environment
607 variable to disable this warning.
609 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 for more
612 $self->use_namespaces(0);
614 elsif ($load_classes && $self->use_namespaces) {
615 $self->_upgrading_from_load_classes(1);
617 elsif ((not $load_classes) && defined $self->use_namespaces
618 && (not $self->use_namespaces)) {
619 $self->_downgrading_to_load_classes(
620 $result_namespace || 'Result'
623 elsif ((not defined $self->use_namespaces)
624 || $self->use_namespaces) {
625 if (not $self->result_namespace) {
626 $self->result_namespace($result_namespace || 'Result');
628 elsif ($result_namespace ne $self->result_namespace) {
629 $self->_rewriting_result_namespace(
630 $result_namespace || 'Result'
635 # XXX when we go past .0 this will need fixing
636 my ($v) = $real_ver =~ /([1-9])/;
639 last if $v eq $CURRENT_V || $real_ver =~ /^0\.\d\d999/;
641 if (not %{ $self->naming }) {
642 warn <<"EOF" unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
644 Version $real_ver static schema detected, turning on backcompat mode.
646 Set the 'naming' attribute or the SCHEMA_LOADER_BACKCOMPAT environment variable
647 to disable this warning.
649 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 for more
654 $self->_upgrading_from($v);
658 $self->naming->{relationships} ||= $v;
659 $self->naming->{monikers} ||= $v;
661 $self->schema_version_to_dump($real_ver);
669 sub _validate_class_args {
673 foreach my $k (@CLASS_ARGS) {
674 next unless $self->$k;
676 my @classes = ref $self->$k eq 'ARRAY' ? @{ $self->$k } : $self->$k;
677 foreach my $c (@classes) {
678 # components default to being under the DBIx::Class namespace unless they
679 # are preceeded with a '+'
680 if ( $k =~ m/components$/ && $c !~ s/^\+// ) {
681 $c = 'DBIx::Class::' . $c;
684 # 1 == installed, 0 == not installed, undef == invalid classname
685 my $installed = Class::Inspector->installed($c);
686 if ( defined($installed) ) {
687 if ( $installed == 0 ) {
688 croak qq/$c, as specified in the loader option "$k", is not installed/;
691 croak qq/$c, as specified in the loader option "$k", is an invalid class name/;
697 sub _find_file_in_inc {
698 my ($self, $file) = @_;
700 foreach my $prefix (@INC) {
701 my $fullpath = File::Spec->catfile($prefix, $file);
702 return $fullpath if -f $fullpath
703 # abs_path throws on Windows for nonexistant files
704 and eval { Cwd::abs_path($fullpath) } ne
705 (eval { Cwd::abs_path(File::Spec->catfile($self->dump_directory, $file)) } || '');
712 my ($self, $class) = @_;
714 my $class_path = $class;
715 $class_path =~ s{::}{/}g;
716 $class_path .= '.pm';
721 sub _find_class_in_inc {
722 my ($self, $class) = @_;
724 return $self->_find_file_in_inc($self->_class_path($class));
730 return $self->_upgrading_from
731 || $self->_upgrading_from_load_classes
732 || $self->_downgrading_to_load_classes
733 || $self->_rewriting_result_namespace
737 sub _rewrite_old_classnames {
738 my ($self, $code) = @_;
740 return $code unless $self->_rewriting;
742 my %old_classes = reverse %{ $self->_upgrading_classes };
744 my $re = join '|', keys %old_classes;
747 $code =~ s/$re/$old_classes{$1} || $1/eg;
753 my ($self, $class) = @_;
755 return if $self->{skip_load_external};
757 # so that we don't load our own classes, under any circumstances
758 local *INC = [ grep $_ ne $self->dump_directory, @INC ];
760 my $real_inc_path = $self->_find_class_in_inc($class);
762 my $old_class = $self->_upgrading_classes->{$class}
763 if $self->_rewriting;
765 my $old_real_inc_path = $self->_find_class_in_inc($old_class)
766 if $old_class && $old_class ne $class;
768 return unless $real_inc_path || $old_real_inc_path;
770 if ($real_inc_path) {
771 # If we make it to here, we loaded an external definition
772 warn qq/# Loaded external class definition for '$class'\n/
775 open(my $fh, '<', $real_inc_path)
776 or croak "Failed to open '$real_inc_path' for reading: $!";
777 my $code = do { local $/; <$fh> };
779 or croak "Failed to close $real_inc_path: $!";
780 $code = $self->_rewrite_old_classnames($code);
782 if ($self->dynamic) { # load the class too
783 # kill redefined warnings
784 my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
785 local $SIG{__WARN__} = sub {
787 unless $_[0] =~ /^Subroutine \S+ redefined/;
793 $self->_ext_stmt($class,
794 qq|# These lines were loaded from '$real_inc_path' found in \@INC.\n|
795 .qq|# They are now part of the custom portion of this file\n|
796 .qq|# for you to hand-edit. If you do not either delete\n|
797 .qq|# this section or remove that file from \@INC, this section\n|
798 .qq|# will be repeated redundantly when you re-create this\n|
799 .qq|# file again via Loader! See skip_load_external to disable\n|
800 .qq|# this feature.\n|
803 $self->_ext_stmt($class, $code);
804 $self->_ext_stmt($class,
805 qq|# End of lines loaded from '$real_inc_path' |
809 if ($old_real_inc_path) {
810 open(my $fh, '<', $old_real_inc_path)
811 or croak "Failed to open '$old_real_inc_path' for reading: $!";
812 $self->_ext_stmt($class, <<"EOF");
814 # These lines were loaded from '$old_real_inc_path',
815 # based on the Result class name that would have been created by an 0.04006
816 # version of the Loader. For a static schema, this happens only once during
817 # upgrade. See skip_load_external to disable this feature.
820 my $code = slurp $old_real_inc_path;
821 $code = $self->_rewrite_old_classnames($code);
823 if ($self->dynamic) {
826 Detected external content in '$old_real_inc_path', a class name that would have
827 been used by an 0.04006 version of the Loader.
829 * PLEASE RENAME THIS CLASS: from '$old_class' to '$class', as that is the
830 new name of the Result.
832 # kill redefined warnings
833 my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
834 local $SIG{__WARN__} = sub {
836 unless $_[0] =~ /^Subroutine \S+ redefined/;
843 $self->_ext_stmt($class, $code);
844 $self->_ext_stmt($class,
845 qq|# End of lines loaded from '$old_real_inc_path' |
852 Does the actual schema-construction work.
860 $self->_tables_list({ constraint => $self->constraint, exclude => $self->exclude })
868 Rescan the database for newly added tables. Does
869 not process drops or changes. Returns a list of
870 the newly added table monikers.
872 The schema argument should be the schema class
873 or object to be affected. It should probably
874 be derived from the original schema_class used
880 my ($self, $schema) = @_;
882 $self->{schema} = $schema;
883 $self->_relbuilder->{schema} = $schema;
886 my @current = $self->_tables_list({ constraint => $self->constraint, exclude => $self->exclude });
887 foreach my $table (@current) {
888 if(!exists $self->{_tables}->{$table}) {
889 push(@created, $table);
893 my $loaded = $self->_load_tables(@created);
895 return map { $self->monikers->{$_} } @$loaded;
899 no warnings 'uninitialized';
902 return if $self->{skip_relationships};
904 if ($self->naming->{relationships} eq 'v4') {
905 require DBIx::Class::Schema::Loader::RelBuilder::Compat::v0_040;
906 return $self->{relbuilder} ||=
907 DBIx::Class::Schema::Loader::RelBuilder::Compat::v0_040->new(
908 $self->schema, $self->inflect_plural, $self->inflect_singular
912 $self->{relbuilder} ||= DBIx::Class::Schema::Loader::RelBuilder->new (
914 $self->inflect_plural,
915 $self->inflect_singular,
916 $self->relationship_attrs,
921 my ($self, @tables) = @_;
923 # Save the new tables to the tables list
925 $self->{_tables}->{$_} = 1;
928 $self->_make_src_class($_) for @tables;
930 # sanity-check for moniker clashes
931 my $inverse_moniker_idx;
932 for (keys %{$self->monikers}) {
933 push @{$inverse_moniker_idx->{$self->monikers->{$_}}}, $_;
937 for (keys %$inverse_moniker_idx) {
938 my $tables = $inverse_moniker_idx->{$_};
940 push @clashes, sprintf ("tables %s reduced to the same source moniker '%s'",
941 join (', ', map { "'$_'" } @$tables),
948 die 'Unable to load schema - chosen moniker/class naming style results in moniker clashes. '
949 . 'Either change the naming style, or supply an explicit moniker_map: '
950 . join ('; ', @clashes)
956 $self->_setup_src_meta($_) for @tables;
958 if(!$self->skip_relationships) {
959 # The relationship loader needs a working schema
961 local $self->{dump_directory} = $self->{temp_directory};
962 $self->_reload_classes(\@tables);
963 $self->_load_relationships($_) for @tables;
966 # Remove that temp dir from INC so it doesn't get reloaded
967 @INC = grep $_ ne $self->dump_directory, @INC;
970 $self->_load_external($_)
971 for map { $self->classes->{$_} } @tables;
973 # Reload without unloading first to preserve any symbols from external
975 $self->_reload_classes(\@tables, 0);
977 # Drop temporary cache
978 delete $self->{_cache};
983 sub _reload_classes {
984 my ($self, $tables, $unload) = @_;
986 my @tables = @$tables;
987 $unload = 1 unless defined $unload;
989 # so that we don't repeat custom sections
990 @INC = grep $_ ne $self->dump_directory, @INC;
992 $self->_dump_to_dir(map { $self->classes->{$_} } @tables);
994 unshift @INC, $self->dump_directory;
997 my %have_source = map { $_ => $self->schema->source($_) }
998 $self->schema->sources;
1000 for my $table (@tables) {
1001 my $moniker = $self->monikers->{$table};
1002 my $class = $self->classes->{$table};
1005 no warnings 'redefine';
1006 local *Class::C3::reinitialize = sub {};
1009 Class::Unload->unload($class) if $unload;
1010 my ($source, $resultset_class);
1012 ($source = $have_source{$moniker})
1013 && ($resultset_class = $source->resultset_class)
1014 && ($resultset_class ne 'DBIx::Class::ResultSet')
1016 my $has_file = Class::Inspector->loaded_filename($resultset_class);
1017 Class::Unload->unload($resultset_class) if $unload;
1018 $self->_reload_class($resultset_class) if $has_file;
1020 $self->_reload_class($class);
1022 push @to_register, [$moniker, $class];
1025 Class::C3->reinitialize;
1026 for (@to_register) {
1027 $self->schema->register_class(@$_);
1031 # We use this instead of ensure_class_loaded when there are package symbols we
1034 my ($self, $class) = @_;
1036 my $class_path = $self->_class_path($class);
1037 delete $INC{ $class_path };
1039 # kill redefined warnings
1040 my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
1041 local $SIG{__WARN__} = sub {
1043 unless $_[0] =~ /^Subroutine \S+ redefined/;
1045 eval "require $class;";
1048 sub _get_dump_filename {
1049 my ($self, $class) = (@_);
1051 $class =~ s{::}{/}g;
1052 return $self->dump_directory . q{/} . $class . q{.pm};
1055 sub _ensure_dump_subdirs {
1056 my ($self, $class) = (@_);
1058 my @name_parts = split(/::/, $class);
1059 pop @name_parts; # we don't care about the very last element,
1060 # which is a filename
1062 my $dir = $self->dump_directory;
1065 mkdir($dir) or croak "mkdir('$dir') failed: $!";
1067 last if !@name_parts;
1068 $dir = File::Spec->catdir($dir, shift @name_parts);
1073 my ($self, @classes) = @_;
1075 my $schema_class = $self->schema_class;
1076 my $schema_base_class = $self->schema_base_class || 'DBIx::Class::Schema';
1078 my $target_dir = $self->dump_directory;
1079 warn "Dumping manual schema for $schema_class to directory $target_dir ...\n"
1080 unless $self->{dynamic} or $self->{quiet};
1083 qq|package $schema_class;\n\n|
1084 . qq|# Created by DBIx::Class::Schema::Loader\n|
1085 . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n|
1086 . qq|use strict;\nuse warnings;\n\n|
1087 . qq|use base '$schema_base_class';\n\n|;
1089 if ($self->use_namespaces) {
1090 $schema_text .= qq|__PACKAGE__->load_namespaces|;
1091 my $namespace_options;
1092 for my $attr (qw(result_namespace
1094 default_resultset_class)) {
1096 $namespace_options .= qq| $attr => '| . $self->$attr . qq|',\n|
1099 $schema_text .= qq|(\n$namespace_options)| if $namespace_options;
1100 $schema_text .= qq|;\n|;
1103 $schema_text .= qq|__PACKAGE__->load_classes;\n|;
1107 local $self->{version_to_dump} = $self->schema_version_to_dump;
1108 $self->_write_classfile($schema_class, $schema_text, 1);
1111 my $result_base_class = $self->result_base_class || 'DBIx::Class::Core';
1113 foreach my $src_class (@classes) {
1115 qq|package $src_class;\n\n|
1116 . qq|# Created by DBIx::Class::Schema::Loader\n|
1117 . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n|
1118 . qq|use strict;\nuse warnings;\n\n|
1119 . qq|use base '$result_base_class';\n\n|;
1121 $self->_write_classfile($src_class, $src_text);
1124 # remove Result dir if downgrading from use_namespaces, and there are no
1126 if (my $result_ns = $self->_downgrading_to_load_classes
1127 || $self->_rewriting_result_namespace) {
1128 my $result_namespace = $self->_result_namespace(
1133 (my $result_dir = $result_namespace) =~ s{::}{/}g;
1134 $result_dir = $self->dump_directory . '/' . $result_dir;
1136 unless (my @files = glob "$result_dir/*") {
1141 warn "Schema dump completed.\n" unless $self->{dynamic} or $self->{quiet};
1146 my ($self, $version, $ts) = @_;
1147 return qq|\n\n# Created by DBIx::Class::Schema::Loader|
1150 . qq|\n# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:|;
1153 sub _write_classfile {
1154 my ($self, $class, $text, $is_schema) = @_;
1156 my $filename = $self->_get_dump_filename($class);
1157 $self->_ensure_dump_subdirs($class);
1159 if (-f $filename && $self->really_erase_my_files) {
1160 warn "Deleting existing file '$filename' due to "
1161 . "'really_erase_my_files' setting\n" unless $self->{quiet};
1165 my ($custom_content, $old_md5, $old_ver, $old_ts) = $self->_get_custom_content($class, $filename);
1167 if (my $old_class = $self->_upgrading_classes->{$class}) {
1168 my $old_filename = $self->_get_dump_filename($old_class);
1170 my ($old_custom_content) = $self->_get_custom_content(
1171 $old_class, $old_filename, 0 # do not add default comment
1174 $old_custom_content =~ s/\n\n# You can replace.*\n1;\n//;
1176 if ($old_custom_content) {
1178 "\n" . $old_custom_content . "\n" . $custom_content;
1181 unlink $old_filename;
1184 $custom_content = $self->_rewrite_old_classnames($custom_content);
1187 for @{$self->{_dump_storage}->{$class} || []};
1189 # Check and see if the dump is infact differnt
1193 $compare_to = $text . $self->_sig_comment($old_ver, $old_ts);
1196 if (Digest::MD5::md5_base64($compare_to) eq $old_md5) {
1197 return unless $self->_upgrading_from && $is_schema;
1201 $text .= $self->_sig_comment(
1202 $self->version_to_dump,
1203 POSIX::strftime('%Y-%m-%d %H:%M:%S', localtime)
1206 open(my $fh, '>', $filename)
1207 or croak "Cannot open '$filename' for writing: $!";
1209 # Write the top half and its MD5 sum
1210 print $fh $text . Digest::MD5::md5_base64($text) . "\n";
1212 # Write out anything loaded via external partial class file in @INC
1214 for @{$self->{_ext_storage}->{$class} || []};
1216 # Write out any custom content the user has added
1217 print $fh $custom_content;
1220 or croak "Error closing '$filename': $!";
1223 sub _default_custom_content {
1224 return qq|\n\n# You can replace this text with custom|
1225 . qq| content, and it will be preserved on regeneration|
1229 sub _get_custom_content {
1230 my ($self, $class, $filename, $add_default) = @_;
1232 $add_default = 1 unless defined $add_default;
1234 return ($self->_default_custom_content) if ! -f $filename;
1236 open(my $fh, '<', $filename)
1237 or croak "Cannot open '$filename' for reading: $!";
1240 qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\n};
1243 my ($md5, $ts, $ver);
1245 if(!$md5 && /$mark_re/) {
1249 # Pull out the previous version and timestamp
1250 ($ver, $ts) = $buffer =~ m/# Created by DBIx::Class::Schema::Loader v(.*?) @ (.*?)$/s;
1253 croak "Checksum mismatch in '$filename', the auto-generated part of the file has been modified outside of this loader. Aborting.\nIf you want to overwrite these modifications, set the 'overwrite_modifications' loader option.\n"
1254 if !$self->overwrite_modifications && Digest::MD5::md5_base64($buffer) ne $md5;
1263 croak "Cannot not overwrite '$filename' without 'really_erase_my_files',"
1264 . " it does not appear to have been generated by Loader"
1267 # Default custom content:
1268 $buffer ||= $self->_default_custom_content if $add_default;
1270 return ($buffer, $md5, $ver, $ts);
1278 warn "$target: use $_;" if $self->debug;
1279 $self->_raw_stmt($target, "use $_;");
1286 my $schema_class = $self->schema_class;
1288 my $blist = join(q{ }, @_);
1289 warn "$target: use base qw/ $blist /;" if $self->debug && @_;
1290 $self->_raw_stmt($target, "use base qw/ $blist /;") if @_;
1293 sub _result_namespace {
1294 my ($self, $schema_class, $ns) = @_;
1295 my @result_namespace;
1297 if ($ns =~ /^\+(.*)/) {
1298 # Fully qualified namespace
1299 @result_namespace = ($1)
1302 # Relative namespace
1303 @result_namespace = ($schema_class, $ns);
1306 return wantarray ? @result_namespace : join '::', @result_namespace;
1309 # Create class with applicable bases, setup monikers, etc
1310 sub _make_src_class {
1311 my ($self, $table) = @_;
1313 my $schema = $self->schema;
1314 my $schema_class = $self->schema_class;
1316 my $table_moniker = $self->_table2moniker($table);
1317 my @result_namespace = ($schema_class);
1318 if ($self->use_namespaces) {
1319 my $result_namespace = $self->result_namespace || 'Result';
1320 @result_namespace = $self->_result_namespace(
1325 my $table_class = join(q{::}, @result_namespace, $table_moniker);
1327 if ((my $upgrading_v = $self->_upgrading_from)
1328 || $self->_rewriting) {
1329 local $self->naming->{monikers} = $upgrading_v
1332 my @result_namespace = @result_namespace;
1333 if ($self->_upgrading_from_load_classes) {
1334 @result_namespace = ($schema_class);
1336 elsif (my $ns = $self->_downgrading_to_load_classes) {
1337 @result_namespace = $self->_result_namespace(
1342 elsif ($ns = $self->_rewriting_result_namespace) {
1343 @result_namespace = $self->_result_namespace(
1349 my $old_class = join(q{::}, @result_namespace,
1350 $self->_table2moniker($table));
1352 $self->_upgrading_classes->{$table_class} = $old_class
1353 unless $table_class eq $old_class;
1356 # this was a bad idea, should be ok now without it
1357 # my $table_normalized = lc $table;
1358 # $self->classes->{$table_normalized} = $table_class;
1359 # $self->monikers->{$table_normalized} = $table_moniker;
1361 $self->classes->{$table} = $table_class;
1362 $self->monikers->{$table} = $table_moniker;
1364 $self->_use ($table_class, @{$self->additional_classes});
1365 $self->_inject($table_class, @{$self->left_base_classes});
1367 if (my @components = @{ $self->components }) {
1368 $self->_dbic_stmt($table_class, 'load_components', @components);
1371 $self->_dbic_stmt($table_class, 'load_resultset_components', @{$self->resultset_components})
1372 if @{$self->resultset_components};
1373 $self->_inject($table_class, @{$self->additional_base_classes});
1376 # Set up metadata (cols, pks, etc)
1377 sub _setup_src_meta {
1378 my ($self, $table) = @_;
1380 my $schema = $self->schema;
1381 my $schema_class = $self->schema_class;
1383 my $table_class = $self->classes->{$table};
1384 my $table_moniker = $self->monikers->{$table};
1386 my $table_name = $table;
1387 my $name_sep = $self->schema->storage->sql_maker->name_sep;
1389 if ($name_sep && $table_name =~ /\Q$name_sep\E/) {
1390 $table_name = \ $self->_quote_table_name($table_name);
1393 $self->_dbic_stmt($table_class,'table',$table_name);
1395 my $cols = $self->_table_columns($table);
1396 my $col_info = $self->__columns_info_for($table);
1397 if ($self->_is_case_sensitive) {
1398 for my $col (keys %$col_info) {
1399 $col_info->{$col}{accessor} = lc $col
1400 if $col ne lc($col);
1403 $col_info = { map { lc($_), $col_info->{$_} } keys %$col_info };
1406 my $fks = $self->_table_fk_info($table);
1408 for my $fkdef (@$fks) {
1409 for my $col (@{ $fkdef->{local_columns} }) {
1410 $col_info->{$col}{is_foreign_key} = 1;
1416 map { $_, ($col_info->{$_}||{}) } @$cols
1419 my %uniq_tag; # used to eliminate duplicate uniqs
1421 my $pks = $self->_table_pk_info($table) || [];
1422 @$pks ? $self->_dbic_stmt($table_class,'set_primary_key',@$pks)
1423 : carp("$table has no primary key");
1424 $uniq_tag{ join("\0", @$pks) }++ if @$pks; # pk is a uniq
1426 my $uniqs = $self->_table_uniq_info($table) || [];
1428 my ($name, $cols) = @$_;
1429 next if $uniq_tag{ join("\0", @$cols) }++; # skip duplicates
1430 $self->_dbic_stmt($table_class,'add_unique_constraint', $name, $cols);
1435 sub __columns_info_for {
1436 my ($self, $table) = @_;
1438 my $result = $self->_columns_info_for($table);
1440 while (my ($col, $info) = each %$result) {
1441 $info = { %$info, %{ $self->_custom_column_info ($table, $col, $info) } };
1442 $info = { %$info, %{ $self->_datetime_column_info($table, $col, $info) } };
1444 $result->{$col} = $info;
1452 Returns a sorted list of loaded tables, using the original database table
1460 return keys %{$self->_tables};
1463 # Make a moniker from a table
1464 sub _default_table2moniker {
1465 no warnings 'uninitialized';
1466 my ($self, $table) = @_;
1468 if ($self->naming->{monikers} eq 'v4') {
1469 return join '', map ucfirst, split /[\W_]+/, lc $table;
1472 return join '', map ucfirst, split /[\W_]+/,
1473 Lingua::EN::Inflect::Number::to_S(lc $table);
1476 sub _table2moniker {
1477 my ( $self, $table ) = @_;
1481 if( ref $self->moniker_map eq 'HASH' ) {
1482 $moniker = $self->moniker_map->{$table};
1484 elsif( ref $self->moniker_map eq 'CODE' ) {
1485 $moniker = $self->moniker_map->($table);
1488 $moniker ||= $self->_default_table2moniker($table);
1493 sub _load_relationships {
1494 my ($self, $table) = @_;
1496 my $tbl_fk_info = $self->_table_fk_info($table);
1497 foreach my $fkdef (@$tbl_fk_info) {
1498 $fkdef->{remote_source} =
1499 $self->monikers->{delete $fkdef->{remote_table}};
1501 my $tbl_uniq_info = $self->_table_uniq_info($table);
1503 my $local_moniker = $self->monikers->{$table};
1504 my $rel_stmts = $self->_relbuilder->generate_code($local_moniker, $tbl_fk_info, $tbl_uniq_info);
1506 foreach my $src_class (sort keys %$rel_stmts) {
1507 my $src_stmts = $rel_stmts->{$src_class};
1508 foreach my $stmt (@$src_stmts) {
1509 $self->_dbic_stmt($src_class,$stmt->{method},@{$stmt->{args}});
1514 # Overload these in driver class:
1516 # Returns an arrayref of column names
1517 sub _table_columns { croak "ABSTRACT METHOD" }
1519 # Returns arrayref of pk col names
1520 sub _table_pk_info { croak "ABSTRACT METHOD" }
1522 # Returns an arrayref of uniqs [ [ foo => [ col1, col2 ] ], [ bar => [ ... ] ] ]
1523 sub _table_uniq_info { croak "ABSTRACT METHOD" }
1525 # Returns an arrayref of foreign key constraints, each
1526 # being a hashref with 3 keys:
1527 # local_columns (arrayref), remote_columns (arrayref), remote_table
1528 sub _table_fk_info { croak "ABSTRACT METHOD" }
1530 # Returns an array of lower case table names
1531 sub _tables_list { croak "ABSTRACT METHOD" }
1533 # Execute a constructive DBIC class method, with debug/dump_to_dir hooks.
1539 # generate the pod for this statement, storing it with $self->_pod
1540 $self->_make_pod( $class, $method, @_ ) if $self->generate_pod;
1542 my $args = dump(@_);
1543 $args = '(' . $args . ')' if @_ < 2;
1544 my $stmt = $method . $args . q{;};
1546 warn qq|$class\->$stmt\n| if $self->debug;
1547 $self->_raw_stmt($class, '__PACKAGE__->' . $stmt);
1551 # generates the accompanying pod for a DBIC class method statement,
1552 # storing it with $self->_pod
1558 if ( $method eq 'table' ) {
1560 my $pcm = $self->pod_comment_mode;
1561 my ($comment, $comment_overflows, $comment_in_name, $comment_in_desc);
1562 if ( $self->can('_table_comment') ) {
1563 $comment = $self->_table_comment($table);
1564 $comment_overflows = ($comment and length $comment > $self->pod_comment_spillover_length);
1565 $comment_in_name = ($pcm eq 'name' or ($pcm eq 'auto' and !$comment_overflows));
1566 $comment_in_desc = ($pcm eq 'description' or ($pcm eq 'auto' and $comment_overflows));
1568 $self->_pod( $class, "=head1 NAME" );
1569 my $table_descr = $class;
1570 $table_descr .= " - " . $comment if $comment and $comment_in_name;
1571 $self->{_class2table}{ $class } = $table;
1572 $self->_pod( $class, $table_descr );
1573 if ($comment and $comment_in_desc) {
1574 $self->_pod( $class, "=head1 DESCRIPTION" );
1575 $self->_pod( $class, $comment );
1577 $self->_pod_cut( $class );
1578 } elsif ( $method eq 'add_columns' ) {
1579 $self->_pod( $class, "=head1 ACCESSORS" );
1580 my $col_counter = 0;
1582 while( my ($name,$attrs) = splice @cols,0,2 ) {
1584 $self->_pod( $class, '=head2 ' . $name );
1585 $self->_pod( $class,
1587 my $s = $attrs->{$_};
1588 $s = !defined $s ? 'undef' :
1589 length($s) == 0 ? '(empty string)' :
1590 ref($s) eq 'SCALAR' ? $$s :
1597 looks_like_number($s) ? $s :
1602 } sort keys %$attrs,
1605 if( $self->can('_column_comment')
1606 and my $comment = $self->_column_comment( $self->{_class2table}{$class}, $col_counter)
1608 $self->_pod( $class, $comment );
1611 $self->_pod_cut( $class );
1612 } elsif ( $method =~ /^(belongs_to|has_many|might_have)$/ ) {
1613 $self->_pod( $class, "=head1 RELATIONS" ) unless $self->{_relations_started} { $class } ;
1614 my ( $accessor, $rel_class ) = @_;
1615 $self->_pod( $class, "=head2 $accessor" );
1616 $self->_pod( $class, 'Type: ' . $method );
1617 $self->_pod( $class, "Related object: L<$rel_class>" );
1618 $self->_pod_cut( $class );
1619 $self->{_relations_started} { $class } = 1;
1623 # Stores a POD documentation
1625 my ($self, $class, $stmt) = @_;
1626 $self->_raw_stmt( $class, "\n" . $stmt );
1630 my ($self, $class ) = @_;
1631 $self->_raw_stmt( $class, "\n=cut\n" );
1634 # Store a raw source line for a class (for dumping purposes)
1636 my ($self, $class, $stmt) = @_;
1637 push(@{$self->{_dump_storage}->{$class}}, $stmt);
1640 # Like above, but separately for the externally loaded stuff
1642 my ($self, $class, $stmt) = @_;
1643 push(@{$self->{_ext_storage}->{$class}}, $stmt);
1646 sub _quote_table_name {
1647 my ($self, $table) = @_;
1649 my $qt = $self->schema->storage->sql_maker->quote_char;
1651 return $table unless $qt;
1654 return $qt->[0] . $table . $qt->[1];
1657 return $qt . $table . $qt;
1660 sub _is_case_sensitive { 0 }
1662 sub _custom_column_info {
1663 my ( $self, $table_name, $column_name, $column_info ) = @_;
1665 if (my $code = $self->custom_column_info) {
1666 return $code->($table_name, $column_name, $column_info) || {};
1671 sub _datetime_column_info {
1672 my ( $self, $table_name, $column_name, $column_info ) = @_;
1674 my $type = $column_info->{data_type} || '';
1675 if ((grep $_, @{ $column_info }{map "inflate_$_", qw/date datetime timestamp/})
1676 or ($type =~ /date|timestamp/i)) {
1677 $result->{timezone} = $self->datetime_timezone if $self->datetime_timezone;
1678 $result->{locale} = $self->datetime_locale if $self->datetime_locale;
1683 # remove the dump dir from @INC on destruction
1687 @INC = grep $_ ne $self->dump_directory, @INC;
1692 Returns a hashref of loaded table to moniker mappings. There will
1693 be two entries for each table, the original name and the "normalized"
1694 name, in the case that the two are different (such as databases
1695 that like uppercase table names, or preserve your original mixed-case
1696 definitions, or what-have-you).
1700 Returns a hashref of table to class mappings. In some cases it will
1701 contain multiple entries per table for the original and normalized table
1702 names, as above in L</monikers>.
1706 L<DBIx::Class::Schema::Loader>
1710 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
1714 This library is free software; you can redistribute it and/or modify it under
1715 the same terms as Perl itself.
1720 # vim:et sts=4 sw=4 tw=0: