1 package DBIx::Class::Schema::Loader::RelBuilder;
5 use base 'Class::Accessor::Grouped';
7 use Carp::Clan qw/^DBIx::Class/;
8 use Scalar::Util 'weaken';
9 use DBIx::Class::Schema::Loader::Utils qw/split_name slurp_file array_eq apply uniq/;
11 use List::Util qw/all any first/;
13 use Lingua::EN::Inflect::Phrase ();
14 use Lingua::EN::Tagger ();
15 use String::ToIdentifier::EN ();
16 use String::ToIdentifier::EN::Unicode ();
18 use Class::Inspector ();
20 our $VERSION = '0.07042';
24 # local_relname -- name of relationship from the local table referring to the remote table
25 # remote_relname -- name of relationship from the remote table referring to the local table
26 # remote_method -- relationship type from remote table to local table, usually has_many
30 DBIx::Class::Schema::Loader::RelBuilder - Builds relationships for DBIx::Class::Schema::Loader
34 See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
38 This class builds relationships for L<DBIx::Class::Schema::Loader>. This
39 is module is not (yet) for external use.
45 Arguments: $loader object
52 [ local_moniker1 (scalar), fk_info1 (arrayref), uniq_info1 (arrayref) ]
53 [ local_moniker2 (scalar), fk_info2 (arrayref), uniq_info2 (arrayref) ]
57 This generates the code for the relationships of each table.
59 C<local_moniker> is the moniker name of the table which had the REFERENCES
60 statements. The fk_info arrayref's contents should take the form:
64 local_table => 'some_table',
65 local_moniker => 'SomeTable',
66 local_columns => [ 'col2', 'col3' ],
67 remote_table => 'another_table_moniker',
68 remote_moniker => 'AnotherTableMoniker',
69 remote_columns => [ 'col5', 'col7' ],
72 local_table => 'some_other_table',
73 local_moniker => 'SomeOtherTable',
74 local_columns => [ 'col1', 'col4' ],
75 remote_table => 'yet_another_table_moniker',
76 remote_moniker => 'YetAnotherTableMoniker',
77 remote_columns => [ 'col1', 'col2' ],
82 The uniq_info arrayref's contents should take the form:
86 uniq_constraint_name => [ 'col1', 'col2' ],
89 another_uniq_constraint_name => [ 'col1', 'col2' ],
93 This method will return the generated relationships as a hashref keyed on the
94 class names. The values are arrayrefs of hashes containing method name and
98 'Some::Source::Class' => [
99 { method => 'belongs_to', arguments => [ 'col1', 'Another::Source::Class' ],
100 { method => 'has_many', arguments => [ 'anothers', 'Yet::Another::Source::Class', 'col15' ],
102 'Another::Source::Class' => [
110 __PACKAGE__->mk_group_accessors('simple', qw/
124 my ($class, $loader) = @_;
126 # from old POD about this constructor:
127 # C<$schema_class> should be a schema class name, where the source
128 # classes have already been set up and registered. Column info,
129 # primary key, and unique constraints will be drawn from this
130 # schema for all of the existing source monikers.
132 # Options inflect_plural and inflect_singular are optional, and
133 # are better documented in L<DBIx::Class::Schema::Loader::Base>.
137 (map { $_ => $loader->$_ } qw(
138 schema inflect_plural inflect_singular
139 relationship_attrs rel_collision_map
140 rel_name_map allow_extra_m2m_cols
145 weaken $self->{loader}; #< don't leak
147 bless $self => $class;
149 # validate the relationship_attrs arg
150 if( defined $self->relationship_attrs ) {
151 (ref $self->relationship_attrs eq 'HASH' || ref $self->relationship_attrs eq 'CODE')
152 or croak "relationship_attrs must be a hashref or coderef";
159 # pluralize a relationship name
160 sub _inflect_plural {
161 my ($self, $relname) = @_;
163 return '' if !defined $relname || $relname eq '';
168 if( ref $self->inflect_plural eq 'HASH' ) {
169 if (exists $self->inflect_plural->{$relname}) {
170 $result = $self->inflect_plural->{$relname};
174 elsif( ref $self->inflect_plural eq 'CODE' ) {
175 my $inflected = $self->inflect_plural->($relname);
177 $result = $inflected;
182 return ($result, $mapped) if $mapped;
184 return ($self->_to_PL($relname), 0);
187 # Singularize a relationship name
188 sub _inflect_singular {
189 my ($self, $relname) = @_;
191 return '' if !defined $relname || $relname eq '';
196 if( ref $self->inflect_singular eq 'HASH' ) {
197 if (exists $self->inflect_singular->{$relname}) {
198 $result = $self->inflect_singular->{$relname};
202 elsif( ref $self->inflect_singular eq 'CODE' ) {
203 my $inflected = $self->inflect_singular->($relname);
205 $result = $inflected;
210 return ($result, $mapped) if $mapped;
212 return ($self->_to_S($relname), 0);
216 my ($self, $name) = @_;
219 my $plural = Lingua::EN::Inflect::Phrase::to_PL($name);
226 my ($self, $name) = @_;
229 my $singular = Lingua::EN::Inflect::Phrase::to_S($name);
230 $singular =~ s/ /_/g;
235 sub _default_relationship_attrs { +{
245 on_delete => 'CASCADE',
246 on_update => 'CASCADE',
251 # Accessor for options to be passed to each generated relationship type. takes
252 # the relationship type name and optionally any attributes from the database
253 # (such as FK ON DELETE/UPDATE and DEFERRABLE clauses), and returns a
254 # hashref or undef if nothing is set.
256 # The attributes from the database override the default attributes, which in
257 # turn are overridden by user supplied attributes.
258 sub _relationship_attrs {
259 my ( $self, $reltype, $db_attrs, $params ) = @_;
260 my $r = $self->relationship_attrs;
263 %{ $self->_default_relationship_attrs->{$reltype} || {} },
264 %{ $db_attrs || {} },
267 %{ $r->{all} || {} },
268 %{ $r->{$reltype} || {} },
275 if (ref $r eq 'CODE') {
276 $params->{attrs} = \%composite;
278 my %ret = %{ $r->(%$params) || {} };
280 %composite = %ret if %ret;
283 return %composite ? \%composite : undef;
286 sub _strip_id_postfix {
287 my ($self, $name) = @_;
289 $name =~ s/_?(?:id|ref|cd|code|num)\z//i;
295 my ($self, $local_moniker, $local_cols, $fk_attrs, $params) = @_;
297 # get our set of attrs from _relationship_attrs, which uses the FK attrs if available
298 my $attrs = $self->_relationship_attrs('belongs_to', $fk_attrs, $params) || {};
300 # If any referring column is nullable, make 'belongs_to' an
301 # outer join, unless explicitly set by relationship_attrs
302 my $nullable = first { $self->schema->source($local_moniker)->column_info($_)->{is_nullable} } @$local_cols;
303 $attrs->{join_type} = 'LEFT' if $nullable && !defined $attrs->{join_type};
309 my ($self, $name) = @_;
311 $name = $self->loader->_to_identifier('relationships', $name, '_');
313 $name =~ s/\W+/_/g; # if naming >= 8 to_identifier takes care of it
318 sub _normalize_name {
319 my ($self, $name) = @_;
321 $name = $self->_sanitize_name($name);
323 my @words = split_name $name, $self->loader->_get_naming_v('relationships');
325 return join '_', map lc, @words;
329 my ($self, $remote_table, $cond) = @_;
332 # for single-column case, set the remote relname to the column
333 # name, to make filter accessors work, but strip trailing _id
334 if(scalar keys %{$cond} == 1) {
335 my ($col) = values %{$cond};
336 $col = $self->_strip_id_postfix($self->_normalize_name($col));
337 ($local_relname) = $self->_inflect_singular($col);
340 ($local_relname) = $self->_inflect_singular($self->_normalize_name($remote_table));
343 return $local_relname;
346 sub _resolve_relname_collision {
347 my ($self, $moniker, $cols, $relname) = @_;
349 return $relname if $relname eq 'id'; # this shouldn't happen, but just in case
351 my $table = $self->loader->moniker_to_table->{$moniker};
353 if ($self->loader->_is_result_class_method($relname, $table)) {
354 if (my $map = $self->rel_collision_map) {
355 for my $re (keys %$map) {
356 if (my @matches = $relname =~ /$re/) {
357 return sprintf $map->{$re}, @matches;
362 my $new_relname = $relname;
363 while ($self->loader->_is_result_class_method($new_relname, $table)) {
364 $new_relname .= '_rel'
368 Relationship '$relname' in source '$moniker' for columns '@{[ join ',', @$cols ]}' collides with an inherited method. Renaming to '$new_relname'.
369 See "RELATIONSHIP NAME COLLISIONS" in perldoc DBIx::Class::Schema::Loader::Base .
379 my ($self, $tables) = @_;
381 # make a copy to destroy
382 my @tables = @$tables;
386 while (my ($local_moniker, $rels, $uniqs) = @{ shift @tables || [] }) {
387 my $local_class = $self->schema->class($local_moniker);
390 foreach my $rel (@$rels) {
391 next if !$rel->{remote_source};
392 $counters{$rel->{remote_source}}++;
395 foreach my $rel (@$rels) {
396 my $remote_moniker = $rel->{remote_source}
399 my $remote_class = $self->schema->class($remote_moniker);
400 my $remote_obj = $self->schema->source($remote_moniker);
401 my $remote_cols = $rel->{remote_columns} || [ $remote_obj->primary_columns ];
403 my $local_cols = $rel->{local_columns};
405 if($#$local_cols != $#$remote_cols) {
406 croak "Column count mismatch: $local_moniker (@$local_cols) "
407 . "$remote_moniker (@$remote_cols)";
411 @cond{@$remote_cols} = @$local_cols;
413 my ( $local_relname, $remote_relname, $remote_method ) =
414 $self->_relnames_and_method( $local_moniker, $rel, \%cond, $uniqs, \%counters );
415 my $local_method = 'belongs_to';
417 ($local_relname) = $self->_rel_name_map(
418 $local_relname, $local_method,
419 $local_class, $local_moniker, $local_cols,
420 $remote_class, $remote_moniker, $remote_cols,
422 ($remote_relname) = $self->_rel_name_map(
423 $remote_relname, $remote_method,
424 $remote_class, $remote_moniker, $remote_cols,
425 $local_class, $local_moniker, $local_cols,
428 $local_relname = $self->_resolve_relname_collision(
429 $local_moniker, $local_cols, $local_relname,
431 $remote_relname = $self->_resolve_relname_collision(
432 $remote_moniker, $remote_cols, $remote_relname,
435 my $rel_attrs_params = {
436 rel_name => $local_relname,
437 rel_type => $local_method,
438 local_source => $self->schema->source($local_moniker),
439 remote_source => $self->schema->source($remote_moniker),
440 local_table => $rel->{local_table},
441 local_cols => $local_cols,
442 remote_table => $rel->{remote_table},
443 remote_cols => $remote_cols,
446 push @{$all_code->{$local_class}}, {
447 method => $local_method,
452 $self->_remote_attrs($local_moniker, $local_cols, $rel->{attrs}, $rel_attrs_params),
455 local_class => $local_class,
456 local_moniker => $local_moniker,
457 remote_moniker => $remote_moniker,
461 my %rev_cond = reverse %cond;
462 for (keys %rev_cond) {
463 $rev_cond{"foreign.$_"} = "self.".$rev_cond{$_};
464 delete $rev_cond{$_};
467 $rel_attrs_params = {
468 rel_name => $remote_relname,
469 rel_type => $remote_method,
470 local_source => $self->schema->source($remote_moniker),
471 remote_source => $self->schema->source($local_moniker),
472 local_table => $rel->{remote_table},
473 local_cols => $remote_cols,
474 remote_table => $rel->{local_table},
475 remote_cols => $local_cols,
478 push @{$all_code->{$remote_class}}, {
479 method => $remote_method,
484 $self->_relationship_attrs($remote_method, {}, $rel_attrs_params),
487 local_class => $remote_class,
488 local_moniker => $remote_moniker,
489 remote_moniker => $local_moniker,
495 $self->_generate_m2ms($all_code);
497 # disambiguate rels with the same name
498 foreach my $class (keys %$all_code) {
499 my $dups = $self->_duplicates($all_code->{$class});
501 $self->_disambiguate($all_code, $class, $dups) if $dups;
509 # Find classes with only 2 FKs which are the PK and make many_to_many bridges for them.
511 my ($self, $all_code) = @_;
514 foreach my $link_class (sort keys %$all_code) {
515 my @rels = grep $_->{method} eq 'belongs_to', @{$all_code->{$link_class}};
516 next unless @rels == 2;
519 foreach my $this (0, 1) {
520 my $that = $this ? 0 : 1;
522 $class[$this] = \%class;
523 $class{local_moniker} = $rels[$this]{extra}{remote_moniker};
524 $class{remote_moniker} = $rels[$that]{extra}{remote_moniker};
526 $class{class} = $rels[$this]{args}[1];
528 my %link_cols = map { $_ => 1 } apply { s/^self\.//i } values %{ $rels[$this]{args}[2] };
530 $class{link_table_rel} = first {
531 $_->{method} eq 'has_many'
533 $_->{args}[1] eq $link_class
535 all { $link_cols{$_} } apply { s/^foreign\.//i } keys %{$_->{args}[2]}
536 } @{ $all_code->{$class{class}} };
538 next LINK_CLASS unless $class{link_table_rel};
540 $class{link_table_rel_name} = $class{link_table_rel}{args}[0];
542 $class{link_rel} = $rels[$that]{args}[0];
544 $class{from_cols} = [ apply { s/^self\.//i } values %{
545 $class{link_table_rel}->{args}[2]
548 $class{to_cols} = [ apply { s/^foreign\.//i } keys %{ $rels[$that]{args}[2] } ];
550 $class{from_link_cols} = [ apply { s/^self\.//i } values %{ $rels[$this]{args}[2] } ];
553 my $link_moniker = $rels[0]{extra}{local_moniker};
555 my @link_table_cols =
556 @{[ $self->schema->source($link_moniker)->columns ]};
558 my @link_table_primary_cols =
559 @{[ $self->schema->source($link_moniker)->primary_columns ]};
561 next unless array_eq(
562 [ sort +uniq @{$class[0]{from_link_cols}}, @{$class[1]{from_link_cols}} ],
563 [ sort @link_table_primary_cols ],
564 ) && ($self->allow_extra_m2m_cols || @link_table_cols == @link_table_primary_cols);
566 foreach my $this (0, 1) {
567 my $that = $this ? 0 : 1;
568 ($class[$this]{m2m_relname}) = $self->_rel_name_map(
569 ($self->_inflect_plural($class[$this]{link_rel}))[0],
571 @{$class[$this]}{qw(class local_moniker from_cols)},
572 $class[$that]{class},
573 @{$class[$this]}{qw(remote_moniker to_cols)},
575 link_class => $link_class,
576 link_moniker => $link_moniker,
577 link_rel_name => $class[$this]{link_table_rel_name},
581 $class[$this]{m2m_relname} = $self->_resolve_relname_collision(
582 @{$class[$this]}{qw(local_moniker from_cols m2m_relname)},
586 for my $this (0, 1) {
587 my $that = $this ? 0 : 1;
589 push @{$all_code->{$class[$this]{class}}}, {
590 method => 'many_to_many',
592 @{$class[$this]}{qw(m2m_relname link_table_rel_name link_rel)},
593 $self->_relationship_attrs('many_to_many', {}, {
594 rel_type => 'many_to_many',
595 rel_name => $class[$this]{class2_relname},
596 local_source => $self->schema->source($class[$this]{local_moniker}),
597 remote_source => $self->schema->source($class[$this]{remote_moniker}),
598 local_table => $self->loader->class_to_table->{$class[$this]{class}},
599 local_cols => $class[$this]{from_cols},
600 remote_table => $self->loader->class_to_table->{$class[$that]{class}},
601 remote_cols => $class[$that]{from_cols},
605 local_class => $class[$this]{class},
606 link_class => $link_class,
607 local_moniker => $class[$this]{local_moniker},
608 remote_moniker => $class[$this]{remote_moniker},
616 my ($self, $rels) = @_;
618 my @rels = map [ $_->{args}[0] => $_ ], @$rels;
620 $rel_names{$_}++ foreach map $_->[0], @rels;
622 my @dups = grep $rel_names{$_} > 1, keys %rel_names;
626 foreach my $dup (@dups) {
627 $dups{$dup} = [ map $_->[1], grep { $_->[0] eq $dup } @rels ];
638 $self->__tagger(Lingua::EN::Tagger->new) unless $self->__tagger;
640 return $self->__tagger;
644 my ($self, @cols) = @_;
648 foreach my $col (@cols) {
649 my @words = split_name $col;
651 my $tagged = $self->_tagger->get_readable(join ' ', @words);
653 push @adjectives, $tagged =~ m{\G(\w+)/JJ\s+}g;
659 sub _name_to_identifier {
660 my ($self, $name) = @_;
662 my $to_identifier = $self->loader->naming->{force_ascii} ?
663 \&String::ToIdentifier::EN::to_identifier
664 : \&String::ToIdentifier::EN::Unicode::to_identifier;
666 return join '_', map lc, split_name $to_identifier->($name, '_');
670 my ($self, $all_code, $in_class, $dups) = @_;
672 DUP: foreach my $dup (keys %$dups) {
673 my @rels = @{ $dups->{$dup} };
675 # Check if there are rels to the same table name in different
676 # schemas/databases, if so qualify them.
677 my @tables = map $self->loader->moniker_to_table->{$_->{extra}{remote_moniker}},
680 # databases are different, prepend database
681 if ($tables[0]->can('database') && (uniq map $_->database||'', @tables) > 1) {
682 # If any rels are in the same database, we have to distinguish by
683 # both schema and database.
685 $db_counts{$_}++ for map $_->database, @tables;
686 my $use_schema = any { $_ > 1 } values %db_counts;
688 foreach my $i (0..$#rels) {
690 my $table = $tables[$i];
692 $rel->{args}[0] = $self->_name_to_identifier($table->database)
693 . ($use_schema ? ('_' . $self->name_to_identifier($table->schema)) : '')
694 . '_' . $rel->{args}[0];
698 # schemas are different, prepend schema
699 elsif ((uniq map $_->schema||'', @tables) > 1) {
700 foreach my $i (0..$#rels) {
702 my $table = $tables[$i];
704 $rel->{args}[0] = $self->_name_to_identifier($table->schema)
705 . '_' . $rel->{args}[0];
710 foreach my $rel (@rels) {
711 next if $rel->{method} =~ /^(?:belongs_to|many_to_many)\z/;
713 my @to_cols = apply { s/^foreign\.//i }
714 keys %{ $rel->{args}[2] };
716 my @adjectives = $self->_adjectives(@to_cols);
718 # If there are no adjectives, and there is only one might_have
719 # rel to that class, we hardcode 'active'.
721 my $to_class = $rel->{args}[1];
723 if ((not @adjectives)
724 && (grep { $_->{method} eq 'might_have'
725 && $_->{args}[1] eq $to_class } @{ $all_code->{$in_class} }) == 1) {
727 @adjectives = 'active';
731 my $rel_name = join '_', sort(@adjectives), $rel->{args}[0];
733 ($rel_name) = $rel->{method} eq 'might_have' ?
734 $self->_inflect_singular($rel_name)
736 $self->_inflect_plural($rel_name);
738 my ($local_class, $local_moniker, $remote_moniker)
740 {qw/local_class local_moniker remote_moniker/};
742 my @from_cols = apply { s/^self\.//i }
743 values %{ $rel->{args}[2] };
745 ($rel_name) = $self->_rel_name_map($rel_name, $rel->{method}, $local_class, $local_moniker, \@from_cols, $to_class, $remote_moniker, \@to_cols);
747 $rel_name = $self->_resolve_relname_collision($local_moniker, \@from_cols, $rel_name);
749 $rel->{args}[0] = $rel_name;
754 # Check again for duplicates, since the heuristics above may not have resolved them all.
756 if ($dups = $self->_duplicates($all_code->{$in_class})) {
757 foreach my $dup (keys %$dups) {
759 my @rels = map $_->[1], sort { $a->[0] <=> $b->[0] } map [
765 }->{$_->{method}}, $_
766 ], @{ $dups->{$dup} };
770 foreach my $rel (@rels[1 .. $#rels]) {
771 my $inflect_type = $rel->{method} =~ /^(?:many_to_many|has_many)\z/ ?
776 my $inflect_method = "_$inflect_type";
778 my $relname_new_uninflected = $rel->{args}[0] . "_$rel_num";
782 my ($local_class, $local_moniker, $remote_moniker)
784 {qw/local_class local_moniker remote_moniker/};
786 my (@from_cols, @to_cols, $to_class);
788 if ($rel->{method} eq 'many_to_many') {
789 @from_cols = apply { s/^self\.//i } values %{
790 (first { $_->{args}[0] eq $rel->{args}[1] } @{ $all_code->{$local_class} })
793 @to_cols = apply { s/^foreign\.//i } keys %{
794 (first { $_->{args}[0] eq $rel->{args}[2] }
795 @{ $all_code->{ $rel->{extra}{link_class} } })
798 $to_class = $self->schema->source($remote_moniker)->result_class;
801 @from_cols = apply { s/^self\.//i } values %{ $rel->{args}[2] };
802 @to_cols = apply { s/^foreign\.//i } keys %{ $rel->{args}[2] };
803 $to_class = $rel->{args}[1];
806 my ($relname_new, $inflect_mapped) =
807 $self->$inflect_method($relname_new_uninflected);
811 ($relname_new, $rel_name_mapped) = $self->_rel_name_map($relname_new, $rel->{method}, $local_class, $local_moniker, \@from_cols, $to_class, $remote_moniker, \@to_cols);
813 my $mapped = $inflect_mapped || $rel_name_mapped;
815 warn <<"EOF" unless $mapped;
816 Could not find a proper name for relationship '$relname_new' in source
817 '$local_moniker' for columns '@{[ join ',', @from_cols ]}'. Supply a value in
818 '$inflect_type' for '$relname_new_uninflected' or 'rel_name_map' for
819 '$relname_new' to name this relationship.
822 $relname_new = $self->_resolve_relname_collision($local_moniker, \@from_cols, $relname_new);
824 $rel->{args}[0] = $relname_new;
830 sub _relnames_and_method {
831 my ( $self, $local_moniker, $rel, $cond, $uniqs, $counters ) = @_;
833 my $remote_moniker = $rel->{remote_source};
834 my $remote_obj = $self->schema->source( $remote_moniker );
835 my $remote_class = $self->schema->class( $remote_moniker );
836 my $local_relname = $self->_local_relname( $rel->{remote_table}, $cond);
838 my $local_cols = $rel->{local_columns};
839 my $local_table = $rel->{local_table};
840 my $local_class = $self->schema->class($local_moniker);
841 my $local_source = $self->schema->source($local_moniker);
843 my $remote_relname_uninflected = $self->_normalize_name($local_table);
844 my ($remote_relname) = $self->_inflect_plural($self->_normalize_name($local_table));
846 my $remote_method = 'has_many';
848 # If the local columns have a UNIQUE constraint, this is a one-to-one rel
849 if (array_eq([ $local_source->primary_columns ], $local_cols) ||
850 first { array_eq($_->[1], $local_cols) } @$uniqs) {
851 $remote_method = 'might_have';
852 ($remote_relname) = $self->_inflect_singular($remote_relname_uninflected);
855 # If more than one rel between this pair of tables, use the local
856 # col names to distinguish, unless the rel was created previously.
857 if ($counters->{$remote_moniker} > 1) {
858 my $relationship_exists = 0;
860 if (-f (my $existing_remote_file = $self->loader->get_dump_filename($remote_class))) {
861 my $class = "${remote_class}Temporary";
863 if (not Class::Inspector->loaded($class)) {
864 my $code = slurp_file $existing_remote_file;
866 $code =~ s/(?<=package $remote_class)/Temporary/g;
868 $code =~ s/__PACKAGE__->meta->make_immutable[^;]*;//g;
873 push @{ $self->_temp_classes }, $class;
876 if ($class->has_relationship($remote_relname)) {
877 my $rel_cols = [ sort { $a cmp $b } apply { s/^foreign\.//i }
878 (keys %{ $class->relationship_info($remote_relname)->{cond} }) ];
880 $relationship_exists = 1 if array_eq([ sort @$local_cols ], $rel_cols);
884 if (not $relationship_exists) {
885 my $colnames = q{_} . $self->_normalize_name(join '_', @$local_cols);
886 $local_relname .= $colnames if keys %$cond > 1;
888 $remote_relname = $self->_strip_id_postfix($self->_normalize_name($local_table . $colnames));
890 $remote_relname_uninflected = $remote_relname;
891 ($remote_relname) = $self->_inflect_plural($remote_relname);
893 # if colnames were added and this is a might_have, re-inflect
894 if ($remote_method eq 'might_have') {
895 ($remote_relname) = $self->_inflect_singular($remote_relname_uninflected);
900 return ($local_relname, $remote_relname, $remote_method);
904 my ($self, $relname, $method, $local_class, $local_moniker, $local_cols,
905 $remote_class, $remote_moniker, $remote_cols, $extra) = @_;
911 local_class => $local_class,
912 local_moniker => $local_moniker,
913 local_columns => $local_cols,
914 remote_class => $remote_class,
915 remote_moniker => $remote_moniker,
916 remote_columns => $remote_cols,
919 $self->_run_user_map($self->rel_name_map, $info);
923 my ($self, $map, $info) = @_;
925 my $new_name = $info->{name};
928 if ('HASH' eq ref($map)) {
929 my $name = $info->{name};
930 my $moniker = $info->{local_moniker};
931 if ($map->{$moniker} and 'HASH' eq ref($map->{$moniker})
932 and $map->{$moniker}{$name}
934 $new_name = $map->{$moniker}{$name};
937 elsif ($map->{$name} and not 'HASH' eq ref($map->{$name})) {
938 $new_name = $map->{$name};
942 elsif ('CODE' eq ref($map)) {
945 croak "reentered rel_name_map must be a hashref"
946 unless 'HASH' eq ref($cb_map);
947 my ($cb_name, $cb_mapped) = $self->_run_user_map($cb_map, $info);
948 return $cb_mapped && $cb_name;
950 my $name = $map->($info, $cb);
957 return ($new_name, $mapped);
963 for my $class (@{ $self->_temp_classes }) {
964 Class::Unload->unload($class);
967 $self->_temp_classes([]);
972 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
976 This library is free software; you can redistribute it and/or modify it under
977 the same terms as Perl itself.
982 # vim:et sts=4 sw=4 tw=0: