1 package DBIx::Class::Schema::Loader::Base;
5 use base qw/Class::Accessor::Grouped Class::C3::Componentised/;
8 use Carp::Clan qw/^DBIx::Class/;
9 use DBIx::Class::Schema::Loader::RelBuilder ();
10 use Data::Dump 'dump';
15 use Lingua::EN::Inflect::Number ();
16 use Lingua::EN::Inflect::Phrase ();
17 use String::ToIdentifier::EN ();
18 use String::ToIdentifier::EN::Unicode ();
21 use Class::Inspector ();
22 use Scalar::Util 'looks_like_number';
23 use DBIx::Class::Schema::Loader::Column;
24 use DBIx::Class::Schema::Loader::Utils qw/split_name dumper_squashed eval_package_without_redefine_warnings class_path slurp_file sigwarn_silencer firstidx uniq/;
25 use DBIx::Class::Schema::Loader::Optional::Dependencies ();
28 use Encode qw/encode decode/;
29 use List::Util qw/all any none/;
30 use File::Temp 'tempfile';
33 our $VERSION = '0.07046';
35 __PACKAGE__->mk_group_ro_accessors('simple', qw/
42 additional_base_classes
58 default_resultset_class
64 overwrite_modifications
92 __PACKAGE__->mk_group_accessors('simple', qw/
94 schema_version_to_dump
96 _upgrading_from_load_classes
97 _downgrading_to_load_classes
98 _rewriting_result_namespace
103 pod_comment_spillover_length
109 result_components_map
111 datetime_undef_if_invalid
112 _result_class_methods
114 filter_generated_code
118 moniker_part_separator
122 my $CURRENT_V = 'v7';
125 schema_components schema_base_class result_base_class
126 additional_base_classes left_base_classes additional_classes components
132 my $CRLF = "\x0d\x0a";
136 DBIx::Class::Schema::Loader::Base - Base DBIx::Class::Schema::Loader Implementation.
140 See L<DBIx::Class::Schema::Loader>.
144 This is the base class for the storage-specific C<DBIx::Class::Schema::*>
145 classes, and implements the common functionality between them.
147 =head1 CONSTRUCTOR OPTIONS
149 These constructor options are the base options for
150 L<DBIx::Class::Schema::Loader/loader_options>. Available constructor options are:
152 =head2 skip_relationships
154 Skip setting up relationships. The default is to attempt the loading
157 =head2 skip_load_external
159 Skip loading of other classes in @INC. The default is to merge all other classes
160 with the same name found in @INC into the schema file we are creating.
164 Static schemas (ones dumped to disk) will, by default, use the new-style
165 relationship names and singularized Results, unless you're overwriting an
166 existing dump made by an older version of L<DBIx::Class::Schema::Loader>, in
167 which case the backward compatible RelBuilder will be activated, and the
168 appropriate monikerization used.
174 will disable the backward-compatible RelBuilder and use
175 the new-style relationship names along with singularized Results, even when
176 overwriting a dump made with an earlier version.
178 The option also takes a hashref:
181 relationships => 'v8',
183 column_accessors => 'v8',
189 naming => { ALL => 'v8', force_ascii => 1 }
197 Set L</relationships>, L</monikers> and L</column_accessors> to the specified
202 How to name relationship accessors.
206 How to name Result classes.
208 =item column_accessors
210 How to name column accessors in Result classes.
214 For L</v8> mode and later, uses L<String::ToIdentifier::EN> instead of
215 L<String::ToIdentifier::EN::Unicode> to force monikers and other identifiers to
226 Latest style, whatever that happens to be.
230 Unsingularlized monikers, C<has_many> only relationships with no _id stripping.
234 Monikers singularized as whole words, C<might_have> relationships for FKs on
235 C<UNIQUE> constraints, C<_id> stripping for belongs_to relationships.
237 Some of the C<_id> stripping edge cases in C<0.05003> have been reverted for
242 All monikers and relationships are inflected using
243 L<Lingua::EN::Inflect::Phrase>, and there is more aggressive C<_id> stripping
244 from relationship names.
246 In general, there is very little difference between v5 and v6 schemas.
250 This mode is identical to C<v6> mode, except that monikerization of CamelCase
251 table names is also done better (but best in v8.)
253 CamelCase column names in case-preserving mode will also be handled better
254 for relationship name inflection (but best in v8.) See L</preserve_case>.
256 In this mode, CamelCase L</column_accessors> are normalized based on case
257 transition instead of just being lowercased, so C<FooId> becomes C<foo_id>.
263 The default mode is L</v7>, to get L</v8> mode, you have to specify it in
264 L</naming> explicitly until C<0.08> comes out.
266 L</monikers> and L</column_accessors> are created using
267 L<String::ToIdentifier::EN::Unicode> or L<String::ToIdentifier::EN> if
268 L</force_ascii> is set; this is only significant for names with non-C<\w>
269 characters such as C<.>.
271 CamelCase identifiers with words in all caps, e.g. C<VLANValidID> are supported
272 correctly in this mode.
274 For relationships, belongs_to accessors are made from column names by stripping
275 postfixes other than C<_id> as well, for example just C<Id>, C<_?ref>, C<_?cd>,
276 C<_?code> and C<_?num>, case insensitively.
280 For L</monikers>, this option does not inflect the table names but makes
281 monikers based on the actual name. For L</column_accessors> this option does
282 not normalize CamelCase column names to lowercase column accessors, but makes
283 accessors that are the same names as the columns (with any non-\w chars
284 replaced with underscores.)
288 For L</monikers>, singularizes the names using the most current inflector. This
289 is the same as setting the option to L</current>.
293 For L</monikers>, pluralizes the names, using the most current inflector.
297 Dynamic schemas will always default to the 0.04XXX relationship names and won't
298 singularize Results for backward compatibility, to activate the new RelBuilder
299 and singularization put this in your C<Schema.pm> file:
301 __PACKAGE__->naming('current');
303 Or if you prefer to use 0.07XXX features but insure that nothing breaks in the
304 next major version upgrade:
306 __PACKAGE__->naming('v7');
310 If true, will not print the usual C<Dumping manual schema ... Schema dump
311 completed.> messages. Does not affect warnings (except for warnings related to
312 L</really_erase_my_files>.)
316 If true, don't actually write out the generated files. This can only be
317 used with static schema generation.
321 By default POD will be generated for columns and relationships, using database
322 metadata for the text if available and supported.
324 Comment metadata can be stored in two ways.
326 The first is that you can create two tables named C<table_comments> and
327 C<column_comments> respectively. These tables must exist in the same database
328 and schema as the tables they describe. They both need to have columns named
329 C<table_name> and C<comment_text>. The second one needs to have a column named
330 C<column_name>. Then data stored in these tables will be used as a source of
331 metadata about tables and comments.
333 (If you wish you can change the name of these tables with the parameters
334 L</table_comments_table> and L</column_comments_table>.)
336 As a fallback you can use built-in commenting mechanisms. Currently this is
337 only supported for PostgreSQL, Oracle and MySQL. To create comments in
338 PostgreSQL you add statements of the form C<COMMENT ON TABLE some_table IS
339 '...'>, the same syntax is used in Oracle. To create comments in MySQL you add
340 C<COMMENT '...'> to the end of the column or table definition. Note that MySQL
341 restricts the length of comments, and also does not handle complex Unicode
344 Set this to C<0> to turn off all POD generation.
346 =head2 pod_comment_mode
348 Controls where table comments appear in the generated POD. Smaller table
349 comments are appended to the C<NAME> section of the documentation, and larger
350 ones are inserted into C<DESCRIPTION> instead. You can force a C<DESCRIPTION>
351 section to be generated with the comment always, only use C<NAME>, or choose
352 the length threshold at which the comment is forced into the description.
358 Use C<NAME> section only.
362 Force C<DESCRIPTION> always.
366 Use C<DESCRIPTION> if length > L</pod_comment_spillover_length>, this is the
371 =head2 pod_comment_spillover_length
373 When pod_comment_mode is set to C<auto>, this is the length of the comment at
374 which it will be forced into a separate description section.
378 =head2 table_comments_table
380 The table to look for comments about tables in. By default C<table_comments>.
381 See L</generate_pod> for details.
383 This must not be a fully qualified name, the table will be looked for in the
384 same database and schema as the table whose comment is being retrieved.
386 =head2 column_comments_table
388 The table to look for comments about columns in. By default C<column_comments>.
389 See L</generate_pod> for details.
391 This must not be a fully qualified name, the table will be looked for in the
392 same database and schema as the table/column whose comment is being retrieved.
394 =head2 relationship_attrs
396 Hashref of attributes to pass to each generated relationship, listed by type.
397 Also supports relationship type 'all', containing options to pass to all
398 generated relationships. Attributes set for more specific relationship types
399 override those set in 'all', and any attributes specified by this option
400 override the introspected attributes of the foreign key if any.
404 relationship_attrs => {
405 has_many => { cascade_delete => 1, cascade_copy => 1 },
406 might_have => { cascade_delete => 1, cascade_copy => 1 },
409 use this to turn L<DBIx::Class> cascades to on on your
410 L<has_many|DBIx::Class::Relationship/has_many> and
411 L<might_have|DBIx::Class::Relationship/might_have> relationships, they default
414 Can also be a coderef, for more precise control, in which case the coderef gets
415 this hash of parameters (as a list):
417 rel_name # the name of the relationship
418 rel_type # the type of the relationship: 'belongs_to', 'has_many' or 'might_have'
419 local_source # the DBIx::Class::ResultSource object for the source the rel is *from*
420 remote_source # the DBIx::Class::ResultSource object for the source the rel is *to*
421 local_table # a DBIx::Class::Schema::Loader::Table object for the table of the source the rel is from
422 local_cols # an arrayref of column names of columns used in the rel in the source it is from
423 remote_table # a DBIx::Class::Schema::Loader::Table object for the table of the source the rel is to
424 remote_cols # an arrayref of column names of columns used in the rel in the source it is to
425 attrs # the attributes that would be set
427 it should return the new hashref of attributes, or nothing for no changes.
431 relationship_attrs => sub {
434 say "the relationship name is: $p{rel_name}";
435 say "the relationship is a: $p{rel_type}";
436 say "the local class is: ", $p{local_source}->result_class;
437 say "the remote class is: ", $p{remote_source}->result_class;
438 say "the local table is: ", $p{local_table}->sql_name;
439 say "the rel columns in the local table are: ", (join ", ", @{$p{local_cols}});
440 say "the remote table is: ", $p{remote_table}->sql_name;
441 say "the rel columns in the remote table are: ", (join ", ", @{$p{remote_cols}});
443 if ($p{local_table} eq 'dogs' && @{$p{local_cols}} == 1 && $p{local_cols}[0] eq 'name') {
444 $p{attrs}{could_be_snoopy} = 1;
450 These are the default attributes:
461 on_delete => 'CASCADE',
462 on_update => 'CASCADE',
466 For L<belongs_to|DBIx::Class::Relationship/belongs_to> relationships, these
467 defaults are overridden by the attributes introspected from the foreign key in
468 the database, if this information is available (and the driver is capable of
471 This information overrides the defaults mentioned above, and is then itself
472 overridden by the user's L</relationship_attrs> for C<belongs_to> if any are
475 In general, for most databases, for a plain foreign key with no rules, the
476 values for a L<belongs_to|DBIx::Class::Relationship/belongs_to> relationship
479 on_delete => 'NO ACTION',
480 on_update => 'NO ACTION',
483 In the cases where an attribute is not supported by the DB, a value matching
484 the actual behavior is used, for example Oracle does not support C<ON UPDATE>
485 rules, so C<on_update> is set to C<NO ACTION>. This is done so that the
486 behavior of the schema is preserved when cross deploying to a different RDBMS
487 such as SQLite for testing.
489 In the cases where the DB does not support C<DEFERRABLE> foreign keys, the
490 value is set to C<1> if L<DBIx::Class> has a working C<<
491 $storage->with_deferred_fk_checks >>. This is done so that the same
492 L<DBIx::Class> code can be used, and cross deployed from and to such databases.
496 If set to true, each constructive L<DBIx::Class> statement the loader
497 decides to execute will be C<warn>-ed before execution.
501 Set the name of the schema to load (schema in the sense that your database
504 Can be set to an arrayref of schema names for multiple schemas, or the special
505 value C<%> for all schemas.
507 For MSSQL, Sybase ASE, and Informix can be set to a hashref of databases as
508 keys and arrays of owners as values, set to the value:
512 for all owners in all databases.
514 Name clashes resulting from the same table name in different databases/schemas
515 will be resolved automatically by prefixing the moniker with the database
518 To prefix/suffix all monikers with the database and/or schema, see
523 The database table names are represented by the
524 L<DBIx::Class::Schema::Loader::Table> class in the loader, the
525 L<DBIx::Class::Schema::Loader::Table::Sybase> class for Sybase ASE and
526 L<DBIx::Class::Schema::Loader::Table::Informix> for Informix.
528 Monikers are created normally based on just the
529 L<name|DBIx::Class::Schema::Loader::DBObject/name> property, corresponding to
530 the table name, but can consist of other parts of the fully qualified name of
533 The L</moniker_parts> option is an arrayref of methods on the table class
534 corresponding to parts of the fully qualified table name, defaulting to
535 C<['name']>, in the order those parts are used to create the moniker name.
536 The parts are joined together using L</moniker_part_separator>.
538 The C<'name'> entry B<must> be present.
540 Below is a table of supported databases and possible L</moniker_parts>.
544 =item * DB2, Firebird, mysql, Oracle, Pg, SQLAnywhere, SQLite, MS Access
548 =item * Informix, MSSQL, Sybase ASE
550 C<database>, C<schema>, C<name>
554 =head2 moniker_part_separator
556 String used to join L</moniker_parts> when creating the moniker.
557 Defaults to the empty string. Use C<::> to get a separate namespace per
558 database and/or schema.
562 Only load matching tables.
564 These can be specified either as a regex (preferably on the C<qr//>
565 form), or as an arrayref of arrayrefs. Regexes are matched against
566 the (unqualified) table name, while arrayrefs are matched according to
571 db_schema => [qw(some_schema other_schema)],
572 moniker_parts => [qw(schema name)],
574 [ qr/\Asome_schema\z/ => qr/\A(?:foo|bar)\z/ ],
575 [ qr/\Aother_schema\z/ => qr/\Abaz\z/ ],
578 In this case only the tables C<foo> and C<bar> in C<some_schema> and
579 C<baz> in C<other_schema> will be dumped.
583 Exclude matching tables.
585 The tables to exclude are specified in the same way as for the
586 L</constraint> option.
590 Overrides the default table name to moniker translation. Either
596 a nested hashref, which will be traversed according to L</moniker_parts>
600 moniker_parts => [qw(schema name)],
607 In which case the table C<bar> in the C<foo> schema would get the moniker
612 a hashref of unqualified table name keys and moniker values
616 a coderef that returns the moniker, which is called with the following
623 the L<DBIx::Class::Schema::Loader::Table> object for the table
627 the default moniker that DBIC would ordinarily give this table
631 a coderef that can be called with either of the hashref forms to get
632 the moniker mapped accordingly. This is useful if you need to handle
633 some monikers specially, but want to use the hashref form for the
640 If the hash entry does not exist, or the function returns a false
641 value, the code falls back to default behavior for that table name.
643 The default behavior is to split on case transition and non-alphanumeric
644 boundaries, singularize the resulting phrase, then join the titlecased words
647 Table Name | Moniker Name
648 ---------------------------------
650 luser_group | LuserGroup
651 luser-opts | LuserOpt
652 stations_visited | StationVisited
653 routeChange | RouteChange
655 =head2 moniker_part_map
657 Map for overriding the monikerization of individual L</moniker_parts>.
658 The keys are the moniker part to override, the value is either a
659 hashref or coderef for mapping the corresponding part of the
660 moniker. If a coderef is used, it gets called with the moniker part
661 and the hash key the code ref was found under.
665 moniker_part_map => {
666 schema => sub { ... },
669 Given the table C<foo.bar>, the code ref would be called with the
670 arguments C<foo> and C<schema>, plus a coderef similar to the one
671 described in L</moniker_map>.
673 L</moniker_map> takes precedence over this.
675 =head2 col_accessor_map
677 Same as moniker_map, but for column accessor names. The nested
678 hashref form is traversed according to L</moniker_parts>, with an
679 extra level at the bottom for the column name. If a coderef is
680 passed, the code is called with arguments of
682 the DBIx::Class::Schema::Loader::Column object for the column,
683 default accessor name that DBICSL would ordinarily give this column,
685 table_class => name of the DBIC class we are building,
686 table_moniker => calculated moniker for this table (after moniker_map if present),
687 table => table object of interface DBIx::Class::Schema::Loader::Table,
688 full_table_name => schema-qualified name of the database table (RDBMS specific),
689 schema_class => name of the schema class we are building,
690 column_info => hashref of column info (data_type, is_nullable, etc),
692 coderef ref that can be called with a hashref map
694 The L<column|DBIx::Class::Schema::Loader::Column> and
695 L<table|DBIx::Class::Schema::Loader::Table> objects stringify to their
700 Similar in idea to moniker_map, but different in the details. It can be
701 a hashref or a code ref.
703 If it is a hashref, keys can be either the default relationship name, or the
704 moniker. The keys that are the default relationship name should map to the
705 name you want to change the relationship to. Keys that are monikers should map
706 to hashes mapping relationship names to their translation. You can do both at
707 once, and the more specific moniker version will be picked up first. So, for
708 instance, you could have
717 and relationships that would have been named C<bar> will now be named C<baz>
718 except that in the table whose moniker is C<Foo> it will be named C<blat>.
720 If it is a coderef, it will be passed a hashref of this form:
723 name => default relationship name,
724 type => the relationship type eg: C<has_many>,
725 local_class => name of the DBIC class we are building,
726 local_moniker => moniker of the DBIC class we are building,
727 local_columns => columns in this table in the relationship,
728 remote_class => name of the DBIC class we are related to,
729 remote_moniker => moniker of the DBIC class we are related to,
730 remote_columns => columns in the other table in the relationship,
731 # for type => "many_to_many" only:
732 link_class => name of the DBIC class for the link table
733 link_moniker => moniker of the DBIC class for the link table
734 link_rel_name => name of the relationship to the link table
737 In addition it is passed a coderef that can be called with a hashref map.
739 DBICSL will try to use the value returned as the relationship name.
741 =head2 inflect_plural
743 Just like L</moniker_map> above (can be hash/code-ref, falls back to default
744 if hash key does not exist or coderef returns false), but acts as a map
745 for pluralizing relationship names. The default behavior is to utilize
746 L<Lingua::EN::Inflect::Phrase/to_PL>.
748 =head2 inflect_singular
750 As L</inflect_plural> above, but for singularizing relationship names.
751 Default behavior is to utilize L<Lingua::EN::Inflect::Phrase/to_S>.
753 =head2 schema_base_class
755 Base class for your schema classes. Defaults to 'DBIx::Class::Schema'.
757 =head2 schema_components
759 List of components to load into the Schema class.
761 =head2 result_base_class
763 Base class for your table classes (aka result classes). Defaults to
766 =head2 additional_base_classes
768 List of additional base classes all of your table classes will use.
770 =head2 left_base_classes
772 List of additional base classes all of your table classes will use
773 that need to be leftmost.
775 =head2 additional_classes
777 List of additional classes which all of your table classes will use.
781 List of additional components to be loaded into all of your Result
782 classes. A good example would be
783 L<InflateColumn::DateTime|DBIx::Class::InflateColumn::DateTime>
785 =head2 result_components_map
787 A hashref of moniker keys and component values. Unlike L</components>, which
788 loads the given components into every Result class, this option allows you to
789 load certain components for specified Result classes. For example:
791 result_components_map => {
792 StationVisited => '+YourApp::Schema::Component::StationVisited',
794 '+YourApp::Schema::Component::RouteChange',
795 'InflateColumn::DateTime',
799 You may use this in conjunction with L</components>.
803 List of L<Moose> roles to be applied to all of your Result classes.
805 =head2 result_roles_map
807 A hashref of moniker keys and role values. Unlike L</result_roles>, which
808 applies the given roles to every Result class, this option allows you to apply
809 certain roles for specified Result classes. For example:
811 result_roles_map => {
813 'YourApp::Role::Building',
814 'YourApp::Role::Destination',
816 RouteChange => 'YourApp::Role::TripEvent',
819 You may use this in conjunction with L</result_roles>.
821 =head2 use_namespaces
823 This is now the default, to go back to L<DBIx::Class::Schema/load_classes> pass
826 Generate result class names suitable for
827 L<DBIx::Class::Schema/load_namespaces> and call that instead of
828 L<DBIx::Class::Schema/load_classes>. When using this option you can also
829 specify any of the options for C<load_namespaces> (i.e. C<result_namespace>,
830 C<resultset_namespace>, C<default_resultset_class>), and they will be added
831 to the call (and the generated result class names adjusted appropriately).
833 =head2 dump_directory
835 The value of this option is a perl libdir pathname. Within
836 that directory this module will create a baseline manual
837 L<DBIx::Class::Schema> module set, based on what it creates at runtime.
839 The created schema class will have the same classname as the one on
840 which you are setting this option (and the ResultSource classes will be
841 based on this name as well).
843 Normally you wouldn't hard-code this setting in your schema class, as it
844 is meant for one-time manual usage.
846 See L<DBIx::Class::Schema::Loader/dump_to_dir> for examples of the
847 recommended way to access this functionality.
849 =head2 dump_overwrite
851 Deprecated. See L</really_erase_my_files> below, which does *not* mean
852 the same thing as the old C<dump_overwrite> setting from previous releases.
854 =head2 really_erase_my_files
856 Default false. If true, Loader will unconditionally delete any existing
857 files before creating the new ones from scratch when dumping a schema to disk.
859 The default behavior is instead to only replace the top portion of the
860 file, up to and including the final stanza which contains
861 C<# DO NOT MODIFY THE FIRST PART OF THIS FILE>
862 leaving any customizations you placed after that as they were.
864 When C<really_erase_my_files> is not set, if the output file already exists,
865 but the aforementioned final stanza is not found, or the checksum
866 contained there does not match the generated contents, Loader will
867 croak and not touch the file.
869 You should really be using version control on your schema classes (and all
870 of the rest of your code for that matter). Don't blame me if a bug in this
871 code wipes something out when it shouldn't have, you've been warned.
873 =head2 overwrite_modifications
875 Default false. If false, when updating existing files, Loader will
876 refuse to modify any Loader-generated code that has been modified
877 since its last run (as determined by the checksum Loader put in its
880 If true, Loader will discard any manual modifications that have been
881 made to Loader-generated code.
883 Again, you should be using version control on your schema classes. Be
884 careful with this option.
888 Omit the package version from the signature comment.
890 =head2 omit_timestamp
892 Omit the creation timestamp from the signature comment.
894 =head2 custom_column_info
896 Hook for adding extra attributes to the
897 L<column_info|DBIx::Class::ResultSource/column_info> for a column.
899 Must be a coderef that returns a hashref with the extra attributes.
901 Receives the L<table object|DBIx::Class::Schema::Loader::Table> (which
902 stringifies to the unqualified table name), column name and column_info.
906 custom_column_info => sub {
907 my ($table, $column_name, $column_info) = @_;
909 if ($column_name eq 'dog' && $column_info->{default_value} eq 'snoopy') {
910 return { is_snoopy => 1 };
914 This attribute can also be used to set C<inflate_datetime> on a non-datetime
915 column so it also receives the L</datetime_timezone> and/or L</datetime_locale>.
917 =head2 datetime_timezone
919 Sets the timezone attribute for L<DBIx::Class::InflateColumn::DateTime> for all
920 columns with the DATE/DATETIME/TIMESTAMP data_types.
922 =head2 datetime_locale
924 Sets the locale attribute for L<DBIx::Class::InflateColumn::DateTime> for all
925 columns with the DATE/DATETIME/TIMESTAMP data_types.
927 =head2 datetime_undef_if_invalid
929 Pass a C<0> for this option when using MySQL if you B<DON'T> want C<<
930 datetime_undef_if_invalid => 1 >> in your column info for DATE, DATETIME and
933 The default is recommended to deal with data such as C<00/00/00> which
934 sometimes ends up in such columns in MySQL.
938 File in Perl format, which should return a HASH reference, from which to read
943 Normally database names are lowercased and split by underscore, use this option
944 if you have CamelCase database names.
946 Drivers for case sensitive databases like Sybase ASE or MSSQL with a
947 case-sensitive collation will turn this option on unconditionally.
949 B<NOTE:> L</naming> = C<v8> is highly recommended with this option as the
950 semantics of this mode are much improved for CamelCase database names.
952 L</naming> = C<v7> or greater is required with this option.
954 =head2 qualify_objects
956 Set to true to prepend the L</db_schema> to table names for C<<
957 __PACKAGE__->table >> calls, and to some other things like Oracle sequences.
959 This attribute is automatically set to true for multi db_schema configurations,
960 unless explicitly set to false by the user.
964 Creates Schema and Result classes that use L<Moose>, L<MooseX::NonMoose> and
965 L<MooseX::MarkAsMethods> (or L<namespace::autoclean>, see below). The default
966 content after the md5 sum also makes the classes immutable.
968 It is safe to upgrade your existing Schema to this option.
970 =head2 only_autoclean
972 By default, we use L<MooseX::MarkAsMethods> to remove imported functions from
973 your generated classes. It uses L<namespace::autoclean> to do this, after
974 telling your object's metaclass that any operator L<overload>s in your class
975 are methods, which will cause namespace::autoclean to spare them from removal.
977 This prevents the "Hey, where'd my overloads go?!" effect.
979 If you don't care about operator overloads, enabling this option falls back to
980 just using L<namespace::autoclean> itself.
982 If none of the above made any sense, or you don't have some pressing need to
983 only use L<namespace::autoclean>, leaving this set to the default is
986 =head2 col_collision_map
988 This option controls how accessors for column names which collide with perl
989 methods are named. See L</COLUMN ACCESSOR COLLISIONS> for more information.
991 This option takes either a single L<sprintf|perlfunc/sprintf> format or a hashref of
992 strings which are compiled to regular expressions that map to
993 L<sprintf|perlfunc/sprintf> formats.
997 col_collision_map => 'column_%s'
999 col_collision_map => { '(.*)' => 'column_%s' }
1001 col_collision_map => { '(foo).*(bar)' => 'column_%s_%s' }
1003 =head2 rel_collision_map
1005 Works just like L</col_collision_map>, but for relationship names/accessors
1006 rather than column names/accessors.
1008 The default is to just append C<_rel> to the relationship name, see
1009 L</RELATIONSHIP NAME COLLISIONS>.
1011 =head2 uniq_to_primary
1013 Automatically promotes the largest unique constraints with non-nullable columns
1014 on tables to primary keys, assuming there is only one largest unique
1017 =head2 allow_extra_m2m_cols
1019 Generate C<many_to_many> relationship bridges even if the link table has
1020 extra columns other than the foreign keys. The primary key must still
1021 equal the union of the foreign keys.
1024 =head2 filter_generated_code
1026 An optional hook that lets you filter the generated text for various classes
1027 through a function that change it in any way that you want. The function will
1028 receive the type of file, C<schema> or C<result>, class and code; and returns
1029 the new code to use instead. For instance you could add custom comments, or do
1030 anything else that you want.
1032 The option can also be set to a string, which is then used as a filter program,
1035 If this exists but fails to return text matching C</\bpackage\b/>, no file will
1038 filter_generated_code => sub {
1039 my ($type, $class, $text) = @_;
1044 You can also use this option to set L<perltidy markers|perltidy/Skipping
1045 Selected Sections of Code> in your generated classes. This will leave
1046 the generated code in the default format, but will allow you to tidy
1047 your classes at any point in future, without worrying about changing the
1048 portions of the file which are checksummed, since C<perltidy> will just
1049 ignore all text between the markers.
1051 filter_generated_code => sub {
1052 return "#<<<\n$_[2]\n#>>>";
1057 None of these methods are intended for direct invocation by regular
1058 users of L<DBIx::Class::Schema::Loader>. Some are proxied via
1059 L<DBIx::Class::Schema::Loader>.
1063 # ensure that a piece of object data is a valid arrayref, creating
1064 # an empty one or encapsulating whatever's there.
1065 sub _ensure_arrayref {
1070 $self->{$_} = [ $self->{$_} ]
1071 unless ref $self->{$_} eq 'ARRAY';
1077 Constructor for L<DBIx::Class::Schema::Loader::Base>, used internally
1078 by L<DBIx::Class::Schema::Loader>.
1083 my ( $class, %args ) = @_;
1085 if (exists $args{column_accessor_map}) {
1086 $args{col_accessor_map} = delete $args{column_accessor_map};
1089 my $self = { %args };
1091 # don't lose undef options
1092 for (values %$self) {
1093 $_ = 0 unless defined $_;
1096 bless $self => $class;
1098 if (my $config_file = $self->config_file) {
1099 my $config_opts = do $config_file;
1101 croak "Error reading config from $config_file: $@" if $@;
1103 croak "Config file $config_file must be a hashref" unless ref($config_opts) eq 'HASH';
1105 while (my ($k, $v) = each %$config_opts) {
1106 $self->{$k} = $v unless exists $self->{$k};
1110 if (defined $self->{result_component_map}) {
1111 if (defined $self->result_components_map) {
1112 croak "Specify only one of result_components_map or result_component_map";
1114 $self->result_components_map($self->{result_component_map})
1117 if (defined $self->{result_role_map}) {
1118 if (defined $self->result_roles_map) {
1119 croak "Specify only one of result_roles_map or result_role_map";
1121 $self->result_roles_map($self->{result_role_map})
1124 croak "the result_roles and result_roles_map options may only be used in conjunction with use_moose=1"
1125 if ((not defined $self->use_moose) || (not $self->use_moose))
1126 && ((defined $self->result_roles) || (defined $self->result_roles_map));
1128 $self->_ensure_arrayref(qw/schema_components
1130 additional_base_classes
1136 $self->_validate_class_args;
1138 croak "result_components_map must be a hash"
1139 if defined $self->result_components_map
1140 && ref $self->result_components_map ne 'HASH';
1142 if ($self->result_components_map) {
1143 my %rc_map = %{ $self->result_components_map };
1144 foreach my $moniker (keys %rc_map) {
1145 $rc_map{$moniker} = [ $rc_map{$moniker} ] unless ref $rc_map{$moniker};
1147 $self->result_components_map(\%rc_map);
1150 $self->result_components_map({});
1152 $self->_validate_result_components_map;
1154 croak "result_roles_map must be a hash"
1155 if defined $self->result_roles_map
1156 && ref $self->result_roles_map ne 'HASH';
1158 if ($self->result_roles_map) {
1159 my %rr_map = %{ $self->result_roles_map };
1160 foreach my $moniker (keys %rr_map) {
1161 $rr_map{$moniker} = [ $rr_map{$moniker} ] unless ref $rr_map{$moniker};
1163 $self->result_roles_map(\%rr_map);
1165 $self->result_roles_map({});
1167 $self->_validate_result_roles_map;
1169 if ($self->use_moose) {
1170 if (not DBIx::Class::Schema::Loader::Optional::Dependencies->req_ok_for('use_moose')) {
1171 die sprintf "You must install the following CPAN modules to enable the use_moose option: %s.\n",
1172 DBIx::Class::Schema::Loader::Optional::Dependencies->req_missing_for('use_moose');
1176 $self->{_tables} = {};
1177 $self->{monikers} = {};
1178 $self->{moniker_to_table} = {};
1179 $self->{class_to_table} = {};
1180 $self->{classes} = {};
1181 $self->{_upgrading_classes} = {};
1182 $self->{generated_classes} = [];
1184 $self->{schema_class} ||= ( ref $self->{schema} || $self->{schema} );
1185 $self->{schema} ||= $self->{schema_class};
1186 $self->{table_comments_table} ||= 'table_comments';
1187 $self->{column_comments_table} ||= 'column_comments';
1189 croak "dump_overwrite is deprecated. Please read the"
1190 . " DBIx::Class::Schema::Loader::Base documentation"
1191 if $self->{dump_overwrite};
1193 $self->{dynamic} = ! $self->{dump_directory};
1195 croak "dry_run can only be used with static schema generation"
1196 if $self->dynamic and $self->dry_run;
1198 $self->{temp_directory} ||= File::Temp::tempdir( 'dbicXXXX',
1203 $self->{dump_directory} ||= $self->{temp_directory};
1205 $self->real_dump_directory($self->{dump_directory});
1207 $self->version_to_dump($DBIx::Class::Schema::Loader::VERSION);
1208 $self->schema_version_to_dump($DBIx::Class::Schema::Loader::VERSION);
1210 if (not defined $self->naming) {
1211 $self->naming_set(0);
1214 $self->naming_set(1);
1217 if ((not ref $self->naming) && defined $self->naming) {
1218 my $naming_ver = $self->naming;
1220 relationships => $naming_ver,
1221 monikers => $naming_ver,
1222 column_accessors => $naming_ver,
1225 elsif (ref $self->naming eq 'HASH' && exists $self->naming->{ALL}) {
1226 my $val = delete $self->naming->{ALL};
1228 $self->naming->{$_} = $val
1229 foreach qw/relationships monikers column_accessors/;
1232 if ($self->naming) {
1233 foreach my $key (qw/relationships monikers column_accessors/) {
1234 $self->naming->{$key} = $CURRENT_V if ($self->naming->{$key}||'') eq 'current';
1237 $self->{naming} ||= {};
1239 if ($self->custom_column_info && ref $self->custom_column_info ne 'CODE') {
1240 croak 'custom_column_info must be a CODE ref';
1243 $self->_check_back_compat;
1245 $self->use_namespaces(1) unless defined $self->use_namespaces;
1246 $self->generate_pod(1) unless defined $self->generate_pod;
1247 $self->pod_comment_mode('auto') unless defined $self->pod_comment_mode;
1248 $self->pod_comment_spillover_length(60) unless defined $self->pod_comment_spillover_length;
1250 if (my $col_collision_map = $self->col_collision_map) {
1251 if (my $reftype = ref $col_collision_map) {
1252 if ($reftype ne 'HASH') {
1253 croak "Invalid type $reftype for option 'col_collision_map'";
1257 $self->col_collision_map({ '(.*)' => $col_collision_map });
1261 if (my $rel_collision_map = $self->rel_collision_map) {
1262 if (my $reftype = ref $rel_collision_map) {
1263 if ($reftype ne 'HASH') {
1264 croak "Invalid type $reftype for option 'rel_collision_map'";
1268 $self->rel_collision_map({ '(.*)' => $rel_collision_map });
1272 if (defined(my $rel_name_map = $self->rel_name_map)) {
1273 my $reftype = ref $rel_name_map;
1274 if ($reftype ne 'HASH' && $reftype ne 'CODE') {
1275 croak "Invalid type $reftype for option 'rel_name_map', must be HASH or CODE";
1279 if (defined(my $filter = $self->filter_generated_code)) {
1280 my $reftype = ref $filter;
1281 if ($reftype && $reftype ne 'CODE') {
1282 croak "Invalid type $reftype for option 'filter_generated_code, must be a scalar or a CODE reference";
1286 if (defined $self->db_schema) {
1287 if (ref $self->db_schema eq 'ARRAY') {
1288 if (@{ $self->db_schema } > 1 && not defined $self->{qualify_objects}) {
1289 $self->{qualify_objects} = 1;
1291 elsif (@{ $self->db_schema } == 0) {
1292 $self->{db_schema} = undef;
1295 elsif (not ref $self->db_schema) {
1296 if ($self->db_schema eq '%' && not defined $self->{qualify_objects}) {
1297 $self->{qualify_objects} = 1;
1300 $self->{db_schema} = [ $self->db_schema ];
1304 if (not $self->moniker_parts) {
1305 $self->moniker_parts(['name']);
1308 if (not ref $self->moniker_parts) {
1309 $self->moniker_parts([ $self->moniker_parts ]);
1311 if (ref $self->moniker_parts ne 'ARRAY') {
1312 croak 'moniker_parts must be an arrayref';
1314 if (none { $_ eq 'name' } @{ $self->moniker_parts }) {
1315 croak "moniker_parts option *must* contain 'name'";
1319 if (not defined $self->moniker_part_separator) {
1320 $self->moniker_part_separator('');
1322 if (not defined $self->moniker_part_map) {
1323 $self->moniker_part_map({}),
1329 sub _check_back_compat {
1332 # dynamic schemas will always be in 0.04006 mode, unless overridden
1333 if ($self->dynamic) {
1334 # just in case, though no one is likely to dump a dynamic schema
1335 $self->schema_version_to_dump('0.04006');
1337 if (not $self->naming_set) {
1338 warn <<EOF unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
1340 Dynamic schema detected, will run in 0.04006 mode.
1342 Set the 'naming' attribute or the SCHEMA_LOADER_BACKCOMPAT environment variable
1343 to disable this warning.
1345 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 for more
1350 $self->_upgrading_from('v4');
1353 if ((not defined $self->use_namespaces) && ($self->naming_set)) {
1354 $self->use_namespaces(1);
1357 $self->naming->{relationships} ||= 'v4';
1358 $self->naming->{monikers} ||= 'v4';
1360 if ($self->use_namespaces) {
1361 $self->_upgrading_from_load_classes(1);
1364 $self->use_namespaces(0);
1370 # otherwise check if we need backcompat mode for a static schema
1371 my $filename = $self->get_dump_filename($self->schema_class);
1372 return unless -e $filename;
1374 my ($old_gen, $old_md5, $old_ver, $old_ts, $old_custom) =
1375 $self->_parse_generated_file($filename);
1377 return unless $old_ver;
1379 # determine if the existing schema was dumped with use_moose => 1
1380 if (! defined $self->use_moose) {
1381 $self->{use_moose} = 1 if $old_gen =~ /^ (?!\s*\#) use \s+ Moose/xm;
1384 my $load_classes = ($old_gen =~ /^__PACKAGE__->load_classes;/m) ? 1 : 0;
1386 my $result_namespace = do { ($old_gen =~ /result_namespace => (.+)/) ? $1 : '' };
1387 my $ds = eval $result_namespace;
1389 Could not eval expression '$result_namespace' for result_namespace from
1392 $result_namespace = $ds || '';
1394 if ($load_classes && (not defined $self->use_namespaces)) {
1395 warn <<"EOF" unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
1397 'load_classes;' static schema detected, turning off 'use_namespaces'.
1399 Set the 'use_namespaces' attribute or the SCHEMA_LOADER_BACKCOMPAT environment
1400 variable to disable this warning.
1402 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 for more
1405 $self->use_namespaces(0);
1407 elsif ($load_classes && $self->use_namespaces) {
1408 $self->_upgrading_from_load_classes(1);
1410 elsif ((not $load_classes) && defined $self->use_namespaces && ! $self->use_namespaces) {
1411 $self->_downgrading_to_load_classes(
1412 $result_namespace || 'Result'
1415 elsif ((not defined $self->use_namespaces) || $self->use_namespaces) {
1416 if (not $self->result_namespace) {
1417 $self->result_namespace($result_namespace || 'Result');
1419 elsif ($result_namespace ne $self->result_namespace) {
1420 $self->_rewriting_result_namespace(
1421 $result_namespace || 'Result'
1426 # XXX when we go past .0 this will need fixing
1427 my ($v) = $old_ver =~ /([1-9])/;
1430 return if ($v eq $CURRENT_V || $old_ver =~ /^0\.\d\d999/);
1432 if (not %{ $self->naming }) {
1433 warn <<"EOF" unless $ENV{SCHEMA_LOADER_BACKCOMPAT};
1435 Version $old_ver static schema detected, turning on backcompat mode.
1437 Set the 'naming' attribute or the SCHEMA_LOADER_BACKCOMPAT environment variable
1438 to disable this warning.
1440 See: 'naming' in perldoc DBIx::Class::Schema::Loader::Base .
1442 See perldoc DBIx::Class::Schema::Loader::Manual::UpgradingFromV4 if upgrading
1443 from version 0.04006.
1446 $self->naming->{relationships} ||= $v;
1447 $self->naming->{monikers} ||= $v;
1448 $self->naming->{column_accessors} ||= $v;
1450 $self->schema_version_to_dump($old_ver);
1453 $self->_upgrading_from($v);
1457 sub _validate_class_args {
1460 foreach my $k (@CLASS_ARGS) {
1461 next unless $self->$k;
1463 my @classes = ref $self->$k eq 'ARRAY' ? @{ $self->$k } : $self->$k;
1464 $self->_validate_classes($k, \@classes);
1468 sub _validate_result_components_map {
1471 foreach my $classes (values %{ $self->result_components_map }) {
1472 $self->_validate_classes('result_components_map', $classes);
1476 sub _validate_result_roles_map {
1479 foreach my $classes (values %{ $self->result_roles_map }) {
1480 $self->_validate_classes('result_roles_map', $classes);
1484 sub _validate_classes {
1487 my $classes = shift;
1489 # make a copy to not destroy original
1490 my @classes = @$classes;
1492 foreach my $c (@classes) {
1493 # components default to being under the DBIx::Class namespace unless they
1494 # are preceded with a '+'
1495 if ( $key =~ m/component/ && $c !~ s/^\+// ) {
1496 $c = 'DBIx::Class::' . $c;
1499 # 1 == installed, 0 == not installed, undef == invalid classname
1500 my $installed = Class::Inspector->installed($c);
1501 if ( defined($installed) ) {
1502 if ( $installed == 0 ) {
1503 croak qq/$c, as specified in the loader option "$key", is not installed/;
1506 croak qq/$c, as specified in the loader option "$key", is an invalid class name/;
1512 sub _find_file_in_inc {
1513 my ($self, $file) = @_;
1515 foreach my $prefix (@INC) {
1516 my $fullpath = File::Spec->catfile($prefix, $file);
1517 # abs_path pure-perl fallback warns for non-existent files
1518 local $SIG{__WARN__} = sigwarn_silencer(qr/^stat\(.*\Q$file\E\)/);
1519 return $fullpath if -f $fullpath
1520 # abs_path throws on Windows for nonexistent files
1521 and (try { Cwd::abs_path($fullpath) }) ne
1522 ((try { Cwd::abs_path(File::Spec->catfile($self->dump_directory, $file)) }) || '');
1528 sub _find_class_in_inc {
1529 my ($self, $class) = @_;
1531 return $self->_find_file_in_inc(class_path($class));
1537 return $self->_upgrading_from
1538 || $self->_upgrading_from_load_classes
1539 || $self->_downgrading_to_load_classes
1540 || $self->_rewriting_result_namespace
1544 sub _rewrite_old_classnames {
1545 my ($self, $code) = @_;
1547 return $code unless $self->_rewriting;
1549 my %old_classes = reverse %{ $self->_upgrading_classes };
1551 my $re = join '|', keys %old_classes;
1552 $re = qr/\b($re)\b/;
1554 $code =~ s/$re/$old_classes{$1} || $1/eg;
1559 sub _load_external {
1560 my ($self, $class) = @_;
1562 return if $self->{skip_load_external};
1564 # so that we don't load our own classes, under any circumstances
1565 local *INC = [ grep $_ ne $self->dump_directory, @INC ];
1567 my $real_inc_path = $self->_find_class_in_inc($class);
1569 my $old_class = $self->_upgrading_classes->{$class}
1570 if $self->_rewriting;
1572 my $old_real_inc_path = $self->_find_class_in_inc($old_class)
1573 if $old_class && $old_class ne $class;
1575 return unless $real_inc_path || $old_real_inc_path;
1577 if ($real_inc_path) {
1578 # If we make it to here, we loaded an external definition
1579 warn qq/# Loaded external class definition for '$class'\n/
1582 my $code = $self->_rewrite_old_classnames(slurp_file $real_inc_path);
1584 if ($self->dynamic) { # load the class too
1585 eval_package_without_redefine_warnings($class, $code);
1588 $self->_ext_stmt($class,
1589 qq|# These lines were loaded from '$real_inc_path' found in \@INC.\n|
1590 .qq|# They are now part of the custom portion of this file\n|
1591 .qq|# for you to hand-edit. If you do not either delete\n|
1592 .qq|# this section or remove that file from \@INC, this section\n|
1593 .qq|# will be repeated redundantly when you re-create this\n|
1594 .qq|# file again via Loader! See skip_load_external to disable\n|
1595 .qq|# this feature.\n|
1598 $self->_ext_stmt($class, $code);
1599 $self->_ext_stmt($class,
1600 qq|# End of lines loaded from '$real_inc_path'|
1604 if ($old_real_inc_path) {
1605 my $code = slurp_file $old_real_inc_path;
1607 $self->_ext_stmt($class, <<"EOF");
1609 # These lines were loaded from '$old_real_inc_path',
1610 # based on the Result class name that would have been created by an older
1611 # version of the Loader. For a static schema, this happens only once during
1612 # upgrade. See skip_load_external to disable this feature.
1615 $code = $self->_rewrite_old_classnames($code);
1617 if ($self->dynamic) {
1620 Detected external content in '$old_real_inc_path', a class name that would have
1621 been used by an older version of the Loader.
1623 * PLEASE RENAME THIS CLASS: from '$old_class' to '$class', as that is the
1624 new name of the Result.
1626 eval_package_without_redefine_warnings($class, $code);
1630 $self->_ext_stmt($class, $code);
1631 $self->_ext_stmt($class,
1632 qq|# End of lines loaded from '$old_real_inc_path'|
1639 Does the actual schema-construction work.
1646 $self->_load_tables($self->_tables_list);
1653 Rescan the database for changes. Returns a list of the newly added table
1656 The schema argument should be the schema class or object to be affected. It
1657 should probably be derived from the original schema_class used during L</load>.
1662 my ($self, $schema) = @_;
1664 $self->{schema} = $schema;
1665 $self->_relbuilder->{schema} = $schema;
1668 my @current = $self->_tables_list;
1670 foreach my $table (@current) {
1671 if(!exists $self->_tables->{$table->sql_name}) {
1672 push(@created, $table);
1677 @current{map $_->sql_name, @current} = ();
1678 foreach my $table (values %{ $self->_tables }) {
1679 if (not exists $current{$table->sql_name}) {
1680 $self->_remove_table($table);
1684 delete @$self{qw/_dump_storage _relations_started _uniqs_started/};
1686 my $loaded = $self->_load_tables(@current);
1688 foreach my $table (@created) {
1689 $self->monikers->{$table->sql_name} = $self->_table2moniker($table);
1692 return map { $self->monikers->{$_->sql_name} } @created;
1698 return if $self->{skip_relationships};
1700 return $self->{relbuilder} ||= do {
1701 my $relbuilder_suff =
1708 ->{$self->naming->{relationships}||$CURRENT_V} || '';
1710 my $relbuilder_class = 'DBIx::Class::Schema::Loader::RelBuilder'.$relbuilder_suff;
1711 $self->ensure_class_loaded($relbuilder_class);
1712 $relbuilder_class->new($self);
1717 my ($self, @tables) = @_;
1719 # Save the new tables to the tables list and compute monikers
1721 $self->_tables->{$_->sql_name} = $_;
1722 $self->monikers->{$_->sql_name} = $self->_table2moniker($_);
1725 # check for moniker clashes
1726 my $inverse_moniker_idx;
1727 foreach my $imtable (values %{ $self->_tables }) {
1728 push @{ $inverse_moniker_idx->{$self->monikers->{$imtable->sql_name}} }, $imtable;
1732 foreach my $moniker (keys %$inverse_moniker_idx) {
1733 my $imtables = $inverse_moniker_idx->{$moniker};
1734 if (@$imtables > 1) {
1735 my $different_databases =
1736 $imtables->[0]->can('database') && (uniq map $_->database||'', @$imtables) > 1;
1738 my $different_schemas =
1739 (uniq map $_->schema||'', @$imtables) > 1;
1741 if ($different_databases || $different_schemas) {
1742 my ($use_schema, $use_database) = (1, 0);
1744 if ($different_databases) {
1747 # If any monikers are in the same database, we have to distinguish by
1748 # both schema and database.
1750 $db_counts{$_}++ for map $_->database, @$imtables;
1751 $use_schema = any { $_ > 1 } values %db_counts;
1754 foreach my $tbl (@$imtables) { delete $self->monikers->{$tbl->sql_name}; }
1756 my $moniker_parts = [ @{ $self->moniker_parts } ];
1758 my $have_schema = any { $_ eq 'schema' } @{ $self->moniker_parts };
1759 my $have_database = any { $_ eq 'database' } @{ $self->moniker_parts };
1761 unshift @$moniker_parts, 'schema' if $use_schema && !$have_schema;
1762 unshift @$moniker_parts, 'database' if $use_database && !$have_database;
1764 local $self->{moniker_parts} = $moniker_parts;
1768 foreach my $tbl (@$imtables) { $new_monikers{$tbl->sql_name} = $self->_table2moniker($tbl); }
1769 foreach my $name (map $_->sql_name, @$imtables) { $self->monikers->{$name} = $new_monikers{$name}; }
1771 # check if there are still clashes
1774 while (my ($t, $m) = each %new_monikers) {
1775 push @{ $by_moniker{$m} }, $t;
1778 foreach my $m (grep @{ $by_moniker{$_} } > 1, keys %by_moniker) {
1779 push @clashes, sprintf ("tried disambiguating by moniker_parts, but tables %s still reduced to the same source moniker '%s'",
1780 join (', ', @{ $by_moniker{$m} }),
1786 push @clashes, sprintf ("tables %s reduced to the same source moniker '%s'",
1787 join (', ', map $_->sql_name, @$imtables),
1795 die 'Unable to load schema - chosen moniker/class naming style results in moniker clashes. '
1796 . 'Change the naming style, or supply an explicit moniker_map: '
1797 . join ('; ', @clashes)
1802 foreach my $tbl (@tables) { $self->_make_src_class($tbl); }
1803 foreach my $tbl (@tables) { $self->_setup_src_meta($tbl); }
1805 if(!$self->skip_relationships) {
1806 # The relationship loader needs a working schema
1807 local $self->{quiet} = 1;
1808 local $self->{dump_directory} = $self->{temp_directory};
1809 local $self->{generated_classes} = [];
1810 local $self->{dry_run} = 0;
1811 $self->_reload_classes(\@tables);
1812 $self->_load_relationships(\@tables);
1814 # Remove that temp dir from INC so it doesn't get reloaded
1815 @INC = grep $_ ne $self->dump_directory, @INC;
1818 foreach my $tbl (@tables) { $self->_load_roles($tbl); }
1819 foreach my $tbl (map { $self->classes->{$_->sql_name} } @tables) { $self->_load_external($tbl); }
1821 # Reload without unloading first to preserve any symbols from external
1823 $self->_reload_classes(\@tables, { unload => 0 });
1825 # Drop temporary cache
1826 delete $self->{_cache};
1831 sub _reload_classes {
1832 my ($self, $tables, $opts) = @_;
1834 my @tables = @$tables;
1836 my $unload = $opts->{unload};
1837 $unload = 1 unless defined $unload;
1839 # so that we don't repeat custom sections
1840 @INC = grep $_ ne $self->dump_directory, @INC;
1842 $self->_dump_to_dir(map { $self->classes->{$_->sql_name} } @tables);
1844 unshift @INC, $self->dump_directory;
1846 return if $self->dry_run;
1849 my %have_source = map { $_ => $self->schema->source($_) }
1850 $self->schema->sources;
1852 for my $table (@tables) {
1853 my $moniker = $self->monikers->{$table->sql_name};
1854 my $class = $self->classes->{$table->sql_name};
1857 no warnings 'redefine';
1858 local *Class::C3::reinitialize = sub {}; # to speed things up, reinitialized below
1861 if (my $mc = $self->_moose_metaclass($class)) {
1864 Class::Unload->unload($class) if $unload;
1865 my ($source, $resultset_class);
1867 ($source = $have_source{$moniker})
1868 && ($resultset_class = $source->resultset_class)
1869 && ($resultset_class ne 'DBIx::Class::ResultSet')
1871 my $has_file = Class::Inspector->loaded_filename($resultset_class);
1872 if (my $mc = $self->_moose_metaclass($resultset_class)) {
1875 Class::Unload->unload($resultset_class) if $unload;
1876 $self->_reload_class($resultset_class) if $has_file;
1878 $self->_reload_class($class);
1880 push @to_register, [$moniker, $class];
1883 Class::C3->reinitialize;
1884 for (@to_register) {
1885 $self->schema->register_class(@$_);
1889 sub _moose_metaclass {
1890 return undef unless $INC{'Class/MOP.pm'}; # if CMOP is not loaded the class could not have loaded in the 1st place
1894 my $mc = try { Class::MOP::class_of($class) }
1897 return $mc->isa('Moose::Meta::Class') ? $mc : undef;
1900 # We use this instead of ensure_class_loaded when there are package symbols we
1903 my ($self, $class) = @_;
1905 delete $INC{ +class_path($class) };
1908 eval_package_without_redefine_warnings ($class, "require $class");
1911 my $source = slurp_file $self->_get_dump_filename($class);
1912 die "Failed to reload class $class: $_.\n\nCLASS SOURCE:\n\n$source";
1916 sub _get_dump_filename {
1917 my ($self, $class) = (@_);
1919 $class =~ s{::}{/}g;
1920 return $self->dump_directory . q{/} . $class . q{.pm};
1923 =head2 get_dump_filename
1927 Returns the full path to the file for a class that the class has been or will
1928 be dumped to. This is a file in a temp dir for a dynamic schema.
1932 sub get_dump_filename {
1933 my ($self, $class) = (@_);
1935 local $self->{dump_directory} = $self->real_dump_directory;
1937 return $self->_get_dump_filename($class);
1940 sub _ensure_dump_subdirs {
1941 my ($self, $class) = (@_);
1943 return if $self->dry_run;
1945 my @name_parts = split(/::/, $class);
1946 pop @name_parts; # we don't care about the very last element,
1947 # which is a filename
1949 my $dir = $self->dump_directory;
1952 mkdir($dir) or croak "mkdir('$dir') failed: $!";
1954 last if !@name_parts;
1955 $dir = File::Spec->catdir($dir, shift @name_parts);
1960 my ($self, @classes) = @_;
1962 my $schema_class = $self->schema_class;
1963 my $schema_base_class = $self->schema_base_class || 'DBIx::Class::Schema';
1965 my $target_dir = $self->dump_directory;
1966 warn "Dumping manual schema for $schema_class to directory $target_dir ...\n"
1967 unless $self->dynamic or $self->quiet;
1971 . qq|package $schema_class;\n\n|
1972 . qq|# Created by DBIx::Class::Schema::Loader\n|
1973 . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n|;
1976 = $self->only_autoclean
1977 ? 'namespace::autoclean'
1978 : 'MooseX::MarkAsMethods autoclean => 1'
1981 if ($self->use_moose) {
1983 $schema_text.= qq|use Moose;\nuse $autoclean;\nextends '$schema_base_class';\n\n|;
1986 $schema_text .= qq|use strict;\nuse warnings;\n\nuse base '$schema_base_class';\n\n|;
1989 my @schema_components = @{ $self->schema_components || [] };
1991 if (@schema_components) {
1992 my $schema_components = dump @schema_components;
1993 $schema_components = "($schema_components)" if @schema_components == 1;
1995 $schema_text .= "__PACKAGE__->load_components${schema_components};\n\n";
1998 if ($self->use_namespaces) {
1999 $schema_text .= qq|__PACKAGE__->load_namespaces|;
2000 my $namespace_options;
2002 my @attr = qw/resultset_namespace default_resultset_class/;
2004 unshift @attr, 'result_namespace'
2005 if $self->result_namespace && $self->result_namespace ne 'Result';
2007 for my $attr (@attr) {
2009 my $code = dumper_squashed $self->$attr;
2010 $namespace_options .= qq| $attr => $code,\n|
2013 $schema_text .= qq|(\n$namespace_options)| if $namespace_options;
2014 $schema_text .= qq|;\n|;
2017 $schema_text .= qq|__PACKAGE__->load_classes;\n|;
2021 local $self->{version_to_dump} = $self->schema_version_to_dump;
2022 $self->_write_classfile($schema_class, $schema_text, 1);
2025 my $result_base_class = $self->result_base_class || 'DBIx::Class::Core';
2027 foreach my $src_class (@classes) {
2030 . qq|package $src_class;\n\n|
2031 . qq|# Created by DBIx::Class::Schema::Loader\n|
2032 . qq|# DO NOT MODIFY THE FIRST PART OF THIS FILE\n\n|;
2034 $src_text .= $self->_make_pod_heading($src_class);
2036 $src_text .= qq|use strict;\nuse warnings;\n\n|;
2038 $src_text .= $self->_base_class_pod($result_base_class)
2039 unless $result_base_class eq 'DBIx::Class::Core';
2041 if ($self->use_moose) {
2042 $src_text.= qq|use Moose;\nuse MooseX::NonMoose;\nuse $autoclean;|;
2044 # these options 'use base' which is compile time
2045 if (@{ $self->left_base_classes } || @{ $self->additional_base_classes }) {
2046 $src_text .= qq|\nBEGIN { extends '$result_base_class' }\n|;
2049 $src_text .= qq|\nextends '$result_base_class';\n|;
2053 $src_text .= qq|use base '$result_base_class';\n|;
2056 $self->_write_classfile($src_class, $src_text);
2059 # remove Result dir if downgrading from use_namespaces, and there are no
2061 if (my $result_ns = $self->_downgrading_to_load_classes
2062 || $self->_rewriting_result_namespace) {
2063 my $result_namespace = $self->_result_namespace(
2068 (my $result_dir = $result_namespace) =~ s{::}{/}g;
2069 $result_dir = $self->dump_directory . '/' . $result_dir;
2071 unless (my @files = glob "$result_dir/*") {
2076 warn "Schema dump completed.\n" unless $self->dynamic or $self->quiet;
2080 my ($self, $version, $ts) = @_;
2081 return qq|\n\n# Created by DBIx::Class::Schema::Loader|
2082 . (defined($version) ? q| v| . $version : '')
2083 . (defined($ts) ? q| @ | . $ts : '')
2084 . qq|\n# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:|;
2087 sub _write_classfile {
2088 my ($self, $class, $text, $is_schema) = @_;
2090 my $filename = $self->_get_dump_filename($class);
2091 $self->_ensure_dump_subdirs($class);
2093 if (-f $filename && $self->really_erase_my_files && !$self->dry_run) {
2094 warn "Deleting existing file '$filename' due to "
2095 . "'really_erase_my_files' setting\n" unless $self->quiet;
2099 my ($old_gen, $old_md5, $old_ver, $old_ts, $old_custom)
2100 = $self->_parse_generated_file($filename);
2102 if (! $old_gen && -f $filename) {
2103 croak "Cannot overwrite '$filename' without 'really_erase_my_files',"
2104 . " it does not appear to have been generated by Loader"
2107 my $custom_content = $old_custom || '';
2109 # Use custom content from a renamed class, the class names in it are
2111 if (my $renamed_class = $self->_upgrading_classes->{$class}) {
2112 my $old_filename = $self->_get_dump_filename($renamed_class);
2114 if (-f $old_filename) {
2115 $custom_content = ($self->_parse_generated_file ($old_filename))[4];
2117 unlink $old_filename unless $self->dry_run;
2121 $custom_content ||= $self->_default_custom_content($is_schema);
2123 # If upgrading to use_moose=1 replace default custom content with default Moose custom content.
2124 # If there is already custom content, which does not have the Moose content, add it.
2125 if ($self->use_moose) {
2127 my $non_moose_custom_content = do {
2128 local $self->{use_moose} = 0;
2129 $self->_default_custom_content;
2132 if ($custom_content eq $non_moose_custom_content) {
2133 $custom_content = $self->_default_custom_content($is_schema);
2135 elsif ($custom_content !~ /\Q@{[$self->_default_moose_custom_content($is_schema)]}\E/) {
2136 $custom_content .= $self->_default_custom_content($is_schema);
2139 elsif (defined $self->use_moose && $old_gen) {
2140 croak 'It is not possible to "downgrade" a schema that was loaded with use_moose => 1 to use_moose => 0, due to differing custom content'
2141 if $old_gen =~ /use \s+ MooseX?\b/x;
2144 $custom_content = $self->_rewrite_old_classnames($custom_content);
2147 for @{$self->{_dump_storage}->{$class} || []};
2149 if ($self->filter_generated_code) {
2150 my $filter = $self->filter_generated_code;
2152 if (ref $filter eq 'CODE') {
2154 ($is_schema ? 'schema' : 'result'),
2160 my ($fh, $temp_file) = tempfile();
2162 binmode $fh, ':encoding(UTF-8)';
2166 open my $out, qq{$filter < "$temp_file"|}
2167 or croak "Could not open pipe to $filter: $!";
2169 $text = decode('UTF-8', do { local $/; <$out> });
2171 $text =~ s/$CR?$LF/\n/g;
2175 my $exit_code = $? >> 8;
2178 or croak "Could not remove temporary file '$temp_file': $!";
2180 if ($exit_code != 0) {
2181 croak "filter '$filter' exited non-zero: $exit_code";
2184 if (not $text or not $text =~ /\bpackage\b/) {
2185 warn("$class skipped due to filter") if $self->debug;
2190 # Check and see if the dump is in fact different
2194 $compare_to = $text . $self->_sig_comment($old_ver, $old_ts);
2195 if (Digest::MD5::md5_base64(encode 'UTF-8', $compare_to) eq $old_md5) {
2196 return unless $self->_upgrading_from && $is_schema;
2200 push @{$self->generated_classes}, $class;
2202 return if $self->dry_run;
2204 $text .= $self->_sig_comment(
2205 $self->omit_version ? undef : $self->version_to_dump,
2206 $self->omit_timestamp ? undef : POSIX::strftime('%Y-%m-%d %H:%M:%S', localtime)
2209 open(my $fh, '>:raw:encoding(UTF-8)', $filename)
2210 or croak "Cannot open '$filename' for writing: $!";
2212 # Write the top half and its MD5 sum
2213 print $fh $text . Digest::MD5::md5_base64(encode 'UTF-8', $text) . "\n";
2215 # Write out anything loaded via external partial class file in @INC
2217 for @{$self->{_ext_storage}->{$class} || []};
2219 # Write out any custom content the user has added
2220 print $fh $custom_content;
2223 or croak "Error closing '$filename': $!";
2226 sub _default_moose_custom_content {
2227 my ($self, $is_schema) = @_;
2229 if (not $is_schema) {
2230 return qq|\n__PACKAGE__->meta->make_immutable;|;
2233 return qq|\n__PACKAGE__->meta->make_immutable(inline_constructor => 0);|;
2236 sub _default_custom_content {
2237 my ($self, $is_schema) = @_;
2238 my $default = qq|\n\n# You can replace this text with custom|
2239 . qq| code or comments, and it will be preserved on regeneration|;
2240 if ($self->use_moose) {
2241 $default .= $self->_default_moose_custom_content($is_schema);
2243 $default .= qq|\n1;\n|;
2247 sub _parse_generated_file {
2248 my ($self, $fn) = @_;
2250 return unless -f $fn;
2252 open(my $fh, '<:encoding(UTF-8)', $fn)
2253 or croak "Cannot open '$fn' for reading: $!";
2256 qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\r?\n};
2258 my ($real_md5, $ts, $ver, $gen);
2265 # Pull out the version and timestamp from the line above
2266 ($ver, $ts) = $gen =~ m/^# Created by DBIx::Class::Schema::Loader( v[\d.]+)?( @ [\d-]+ [\d:]+)?\r?\Z/m;
2267 $ver =~ s/^ v// if $ver;
2268 $ts =~ s/^ @ // if $ts;
2271 $real_md5 = Digest::MD5::md5_base64(encode 'UTF-8', $gen);
2272 if ($real_md5 ne $mark_md5) {
2273 if ($self->overwrite_modifications) {
2274 # Setting this to something that is not a valid MD5 forces
2275 # the file to be rewritten.
2276 $real_md5 = 'not an MD5';
2279 croak "Checksum mismatch in '$fn', 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";
2289 my $custom = do { local $/; <$fh> }
2293 $custom =~ s/$CRLF|$LF/\n/g;
2297 return ($gen, $real_md5, $ver, $ts, $custom);
2305 warn "$target: use $_;" if $self->debug;
2306 $self->_raw_stmt($target, "use $_;");
2314 my $blist = join(q{ }, @_);
2316 return unless $blist;
2318 warn "$target: use base qw/$blist/;" if $self->debug;
2319 $self->_raw_stmt($target, "use base qw/$blist/;");
2326 my $rlist = join(q{, }, map { qq{'$_'} } @_);
2328 return unless $rlist;
2330 warn "$target: with $rlist;" if $self->debug;
2331 $self->_raw_stmt($target, "\nwith $rlist;");
2334 sub _result_namespace {
2335 my ($self, $schema_class, $ns) = @_;
2336 my @result_namespace;
2338 $ns = $ns->[0] if ref $ns;
2340 if ($ns =~ /^\+(.*)/) {
2341 # Fully qualified namespace
2342 @result_namespace = ($1)
2345 # Relative namespace
2346 @result_namespace = ($schema_class, $ns);
2349 return wantarray ? @result_namespace : join '::', @result_namespace;
2352 # Create class with applicable bases, setup monikers, etc
2353 sub _make_src_class {
2354 my ($self, $table) = @_;
2356 my $schema = $self->schema;
2357 my $schema_class = $self->schema_class;
2359 my $table_moniker = $self->monikers->{$table->sql_name};
2360 my @result_namespace = ($schema_class);
2361 if ($self->use_namespaces) {
2362 my $result_namespace = $self->result_namespace || 'Result';
2363 @result_namespace = $self->_result_namespace(
2368 my $table_class = join(q{::}, @result_namespace, $table_moniker);
2370 if ((my $upgrading_v = $self->_upgrading_from)
2371 || $self->_rewriting) {
2372 local $self->naming->{monikers} = $upgrading_v
2375 my @result_namespace = @result_namespace;
2376 if ($self->_upgrading_from_load_classes) {
2377 @result_namespace = ($schema_class);
2379 elsif (my $ns = $self->_downgrading_to_load_classes) {
2380 @result_namespace = $self->_result_namespace(
2385 elsif ($ns = $self->_rewriting_result_namespace) {
2386 @result_namespace = $self->_result_namespace(
2392 my $old_table_moniker = do {
2393 local $self->naming->{monikers} = $upgrading_v;
2394 $self->_table2moniker($table);
2397 my $old_class = join(q{::}, @result_namespace, $old_table_moniker);
2399 $self->_upgrading_classes->{$table_class} = $old_class
2400 unless $table_class eq $old_class;
2403 $self->classes->{$table->sql_name} = $table_class;
2404 $self->moniker_to_table->{$table_moniker} = $table;
2405 $self->class_to_table->{$table_class} = $table;
2407 $self->_pod_class_list($table_class, 'ADDITIONAL CLASSES USED', @{$self->additional_classes});
2409 $self->_use ($table_class, @{$self->additional_classes});
2411 $self->_pod_class_list($table_class, 'LEFT BASE CLASSES', @{$self->left_base_classes});
2413 $self->_inject($table_class, @{$self->left_base_classes});
2415 my @components = @{ $self->components || [] };
2417 push @components, @{ $self->result_components_map->{$table_moniker} }
2418 if exists $self->result_components_map->{$table_moniker};
2420 my @fq_components = @components;
2421 foreach my $component (@fq_components) {
2422 if ($component !~ s/^\+//) {
2423 $component = "DBIx::Class::$component";
2427 $self->_pod_class_list($table_class, 'COMPONENTS LOADED', @fq_components);
2429 $self->_dbic_stmt($table_class, 'load_components', @components) if @components;
2431 $self->_pod_class_list($table_class, 'ADDITIONAL BASE CLASSES', @{$self->additional_base_classes});
2433 $self->_inject($table_class, @{$self->additional_base_classes});
2436 sub _is_result_class_method {
2437 my ($self, $name, $table) = @_;
2439 my $table_moniker = $table ? $self->monikers->{$table->sql_name} : '';
2441 $self->_result_class_methods({})
2442 if not defined $self->_result_class_methods;
2444 if (not exists $self->_result_class_methods->{$table_moniker}) {
2445 my (@methods, %methods);
2446 my $base = $self->result_base_class || 'DBIx::Class::Core';
2448 my @components = @{ $self->components || [] };
2450 push @components, @{ $self->result_components_map->{$table_moniker} }
2451 if exists $self->result_components_map->{$table_moniker};
2453 for my $c (@components) {
2454 $c = $c =~ /^\+/ ? substr($c,1) : "DBIx::Class::$c";
2457 my @roles = @{ $self->result_roles || [] };
2459 push @roles, @{ $self->result_roles_map->{$table_moniker} }
2460 if exists $self->result_roles_map->{$table_moniker};
2463 $base, @components, @roles,
2464 ($self->use_moose ? 'Moose::Object' : ()),
2466 $self->ensure_class_loaded($class);
2468 push @methods, @{ Class::Inspector->methods($class) || [] };
2471 push @methods, @{ Class::Inspector->methods('UNIVERSAL') };
2473 @methods{@methods} = ();
2475 $self->_result_class_methods->{$table_moniker} = \%methods;
2477 my $result_methods = $self->_result_class_methods->{$table_moniker};
2479 return exists $result_methods->{$name};
2482 sub _resolve_col_accessor_collisions {
2483 my ($self, $table, $col_info) = @_;
2485 while (my ($col, $info) = each %$col_info) {
2486 my $accessor = $info->{accessor} || $col;
2488 next if $accessor eq 'id'; # special case (very common column)
2490 if ($self->_is_result_class_method($accessor, $table)) {
2493 if (my $map = $self->col_collision_map) {
2494 for my $re (keys %$map) {
2495 if (my @matches = $col =~ /$re/) {
2496 $info->{accessor} = sprintf $map->{$re}, @matches;
2504 Column '$col' in table '$table' collides with an inherited method.
2505 See "COLUMN ACCESSOR COLLISIONS" in perldoc DBIx::Class::Schema::Loader::Base .
2507 $info->{accessor} = undef;
2513 # use the same logic to run moniker_map, col_accessor_map
2515 my ( $self, $map, $default_code, $ident, @extra ) = @_;
2517 my $default_ident = $default_code->( $ident, @extra );
2519 if( $map && ref $map eq 'HASH' ) {
2520 if (my @parts = try { @{ $ident } }) {
2521 my $part_map = $map;
2523 my $part = shift @parts;
2524 last unless exists $part_map->{ $part };
2525 if ( !ref $part_map->{ $part } && !@parts ) {
2526 $new_ident = $part_map->{ $part };
2529 elsif ( ref $part_map->{ $part } eq 'HASH' ) {
2530 $part_map = $part_map->{ $part };
2534 if( !$new_ident && !ref $map->{ $ident } ) {
2535 $new_ident = $map->{ $ident };
2538 elsif( $map && ref $map eq 'CODE' ) {
2541 croak "reentered map must be a hashref"
2542 unless 'HASH' eq ref($cb_map);
2543 return $self->_run_user_map($cb_map, $default_code, $ident, @extra);
2545 $new_ident = $map->( $ident, $default_ident, @extra, $cb );
2548 $new_ident ||= $default_ident;
2553 sub _default_column_accessor_name {
2554 my ( $self, $column_name ) = @_;
2556 my $preserve = ($self->naming->{column_accessors}||'') eq 'preserve';
2558 my $v = $self->_get_naming_v('column_accessors');
2560 my $accessor_name = $preserve ?
2561 $self->_to_identifier('column_accessors', $column_name) # assume CamelCase
2563 $self->_to_identifier('column_accessors', $column_name, '_');
2565 $accessor_name =~ s/\W+/_/g; # only if naming < v8, otherwise to_identifier
2569 return $accessor_name;
2571 elsif ($v < 7 || (not $self->preserve_case)) {
2572 # older naming just lc'd the col accessor and that's all.
2573 return lc $accessor_name;
2576 return join '_', map lc, split_name $column_name, $v;
2579 sub _make_column_accessor_name {
2580 my ($self, $column_name, $column_context_info ) = @_;
2582 my $accessor = $self->_run_user_map(
2583 $self->col_accessor_map,
2584 sub { $self->_default_column_accessor_name( shift ) },
2586 $column_context_info,
2592 sub _table_is_view {
2593 #my ($self, $table) = @_;
2597 sub _view_definition { undef }
2599 # Set up metadata (cols, pks, etc)
2600 sub _setup_src_meta {
2601 my ($self, $table) = @_;
2603 my $schema = $self->schema;
2604 my $schema_class = $self->schema_class;
2606 my $table_class = $self->classes->{$table->sql_name};
2607 my $table_moniker = $self->monikers->{$table->sql_name};
2609 # Must come before ->table
2610 $self->_dbic_stmt($table_class, 'table_class', 'DBIx::Class::ResultSource::View')
2611 if my $is_view = $self->_table_is_view($table);
2613 $self->_dbic_stmt($table_class, 'table', $table->dbic_name);
2615 # Must come after ->table
2616 if ($is_view and my $view_def = $self->_view_definition($table)) {
2617 $self->_dbic_stmt($table_class, 'result_source_instance->view_definition', $view_def);
2620 my $cols = $self->_table_columns($table);
2621 my $col_info = $self->__columns_info_for($table);
2623 ### generate all the column accessor names
2624 while (my ($col, $info) = each %$col_info) {
2625 # hashref of other info that could be used by
2626 # user-defined accessor map functions
2628 table_class => $table_class,
2629 table_moniker => $table_moniker,
2630 table_name => $table, # bugwards compatibility, RT#84050
2632 full_table_name => $table->dbic_name,
2633 schema_class => $schema_class,
2634 column_info => $info,
2636 my $col_obj = DBIx::Class::Schema::Loader::Column->new(
2641 $info->{accessor} = $self->_make_column_accessor_name( $col_obj, $context );
2644 $self->_resolve_col_accessor_collisions($table, $col_info);
2646 # prune any redundant accessor names
2647 while (my ($col, $info) = each %$col_info) {
2648 no warnings 'uninitialized';
2649 delete $info->{accessor} if $info->{accessor} eq $col;
2652 my $fks = $self->_table_fk_info($table);
2654 foreach my $fkdef (@$fks) {
2655 for my $col (@{ $fkdef->{local_columns} }) {
2656 $col_info->{$col}{is_foreign_key} = 1;
2660 my $pks = $self->_table_pk_info($table) || [];
2662 my %uniq_tag; # used to eliminate duplicate uniqs
2664 $uniq_tag{ join("\0", @$pks) }++ if @$pks; # pk is a uniq
2666 my $uniqs = $self->_table_uniq_info($table) || [];
2669 foreach my $uniq (@$uniqs) {
2670 my ($name, $cols) = @$uniq;
2671 next if $uniq_tag{ join("\0", @$cols) }++; # skip duplicates
2672 push @uniqs, [$name, $cols];
2675 my @non_nullable_uniqs = grep {
2676 all { $col_info->{$_}{is_nullable} == 0 } @{ $_->[1] }
2679 if ($self->uniq_to_primary && (not @$pks) && @non_nullable_uniqs) {
2680 my @by_colnum = sort { $b->[0] <=> $a->[0] }
2681 map [ scalar @{ $_->[1] }, $_ ], @non_nullable_uniqs;
2683 if (not (@by_colnum > 1 && $by_colnum[0][0] == $by_colnum[1][0])) {
2684 my @keys = map $_->[1], @by_colnum;
2688 # remove the uniq from list
2689 @uniqs = grep { $_->[0] ne $pk->[0] } @uniqs;
2695 foreach my $pkcol (@$pks) {
2696 $col_info->{$pkcol}{is_nullable} = 0;
2702 map { $_, ($col_info->{$_}||{}) } @$cols
2705 $self->_dbic_stmt($table_class, 'set_primary_key', @$pks)
2708 # Sort unique constraints by constraint name for repeatable results (rels
2709 # are sorted as well elsewhere.)
2710 @uniqs = sort { $a->[0] cmp $b->[0] } @uniqs;
2712 foreach my $uniq (@uniqs) {
2713 my ($name, $cols) = @$uniq;
2714 $self->_dbic_stmt($table_class,'add_unique_constraint', $name, $cols);
2718 sub __columns_info_for {
2719 my ($self, $table) = @_;
2721 my $result = $self->_columns_info_for($table);
2723 while (my ($col, $info) = each %$result) {
2724 $info = { %$info, %{ $self->_custom_column_info ($table, $col, $info) } };
2725 $info = { %$info, %{ $self->_datetime_column_info($table, $col, $info) } };
2727 $result->{$col} = $info;
2735 Returns a sorted list of loaded tables, using the original database table
2743 return values %{$self->_tables};
2747 my ($self, $naming_key) = @_;
2751 if (($self->naming->{$naming_key}||'') =~ /^v(\d+)\z/) {
2755 ($v) = $CURRENT_V =~ /^v(\d+)\z/;
2761 sub _to_identifier {
2762 my ($self, $naming_key, $name, $sep_char, $force) = @_;
2764 my $v = $self->_get_naming_v($naming_key);
2766 my $to_identifier = $self->naming->{force_ascii} ?
2767 \&String::ToIdentifier::EN::to_identifier
2768 : \&String::ToIdentifier::EN::Unicode::to_identifier;
2770 return $v >= 8 || $force ? $to_identifier->($name, $sep_char) : $name;
2773 # Make a moniker from a table
2774 sub _default_table2moniker {
2775 my ($self, $table) = @_;
2777 my $v = $self->_get_naming_v('monikers');
2779 my @moniker_parts = @{ $self->moniker_parts };
2780 my @name_parts = map $table->$_, @moniker_parts;
2782 my $name_idx = firstidx { $_ eq 'name' } @{ $self->moniker_parts };
2786 foreach my $i (0 .. $#name_parts) {
2787 my $part = $name_parts[$i];
2789 my $moniker_part = $self->_run_user_map(
2790 $self->moniker_part_map->{$moniker_parts[$i]},
2792 $part, $moniker_parts[$i],
2794 if (length $moniker_part) {
2795 push @all_parts, $moniker_part;
2799 if ($i != $name_idx || $v >= 8) {
2800 $part = $self->_to_identifier('monikers', $part, '_', 1);
2803 if ($i == $name_idx && $v == 5) {
2804 $part = Lingua::EN::Inflect::Number::to_S($part);
2807 my @part_parts = map lc, $v > 6 ?
2808 # use v8 semantics for all moniker parts except name
2809 ($i == $name_idx ? split_name $part, $v : split_name $part)
2810 : split /[\W_]+/, $part;
2812 if ($i == $name_idx && $v >= 6) {
2813 my $as_phrase = join ' ', @part_parts;
2815 my $inflected = ($self->naming->{monikers}||'') eq 'plural' ?
2816 Lingua::EN::Inflect::Phrase::to_PL($as_phrase)
2818 ($self->naming->{monikers}||'') eq 'preserve' ?
2821 Lingua::EN::Inflect::Phrase::to_S($as_phrase);
2823 @part_parts = split /\s+/, $inflected;
2826 push @all_parts, join '', map ucfirst, @part_parts;
2829 return join $self->moniker_part_separator, @all_parts;
2832 sub _table2moniker {
2833 my ( $self, $table ) = @_;
2835 $self->_run_user_map(
2837 sub { $self->_default_table2moniker( shift ) },
2842 sub _load_relationships {
2843 my ($self, $tables) = @_;
2847 foreach my $table (@$tables) {
2848 my $local_moniker = $self->monikers->{$table->sql_name};
2850 my $tbl_fk_info = $self->_table_fk_info($table);
2852 foreach my $fkdef (@$tbl_fk_info) {
2853 $fkdef->{local_table} = $table;
2854 $fkdef->{local_moniker} = $local_moniker;
2855 $fkdef->{remote_source} =
2856 $self->monikers->{$fkdef->{remote_table}->sql_name};
2858 my $tbl_uniq_info = $self->_table_uniq_info($table);
2860 push @tables, [ $local_moniker, $tbl_fk_info, $tbl_uniq_info ];
2863 my $rel_stmts = $self->_relbuilder->generate_code(\@tables);
2865 foreach my $src_class (sort keys %$rel_stmts) {
2867 my @src_stmts = map $_->[2],
2873 ($_->{method} eq 'many_to_many' ? 1 : 0),
2876 ], @{ $rel_stmts->{$src_class} };
2878 foreach my $stmt (@src_stmts) {
2879 $self->_dbic_stmt($src_class,$stmt->{method}, @{$stmt->{args}});
2885 my ($self, $table) = @_;
2887 my $table_moniker = $self->monikers->{$table->sql_name};
2888 my $table_class = $self->classes->{$table->sql_name};
2890 my @roles = @{ $self->result_roles || [] };
2891 push @roles, @{ $self->result_roles_map->{$table_moniker} }
2892 if exists $self->result_roles_map->{$table_moniker};
2895 $self->_pod_class_list($table_class, 'L<Moose> ROLES APPLIED', @roles);
2897 $self->_with($table_class, @roles);
2901 # Overload these in driver class:
2903 # Returns an arrayref of column names
2904 sub _table_columns { croak "ABSTRACT METHOD" }
2906 # Returns arrayref of pk col names
2907 sub _table_pk_info { croak "ABSTRACT METHOD" }
2909 # Returns an arrayref of uniqs [ [ foo => [ col1, col2 ] ], [ bar => [ ... ] ] ]
2910 sub _table_uniq_info { croak "ABSTRACT METHOD" }
2912 # Returns an arrayref of foreign key constraints, each
2913 # being a hashref with 3 keys:
2914 # local_columns (arrayref), remote_columns (arrayref), remote_table
2915 sub _table_fk_info { croak "ABSTRACT METHOD" }
2917 # Returns an array of lower case table names
2918 sub _tables_list { croak "ABSTRACT METHOD" }
2920 # Execute a constructive DBIC class method, with debug/dump_to_dir hooks.
2926 # generate the pod for this statement, storing it with $self->_pod
2927 $self->_make_pod( $class, $method, @_ ) if $self->generate_pod;
2929 my $args = dump(@_);
2930 $args = '(' . $args . ')' if @_ < 2;
2931 my $stmt = $method . $args . q{;};
2933 warn qq|$class\->$stmt\n| if $self->debug;
2934 $self->_raw_stmt($class, '__PACKAGE__->' . $stmt);
2938 sub _make_pod_heading {
2939 my ($self, $class) = @_;
2941 return '' if not $self->generate_pod;
2943 my $table = $self->class_to_table->{$class};
2946 my $pcm = $self->pod_comment_mode;
2947 my ($comment, $comment_overflows, $comment_in_name, $comment_in_desc);
2948 $comment = $self->__table_comment($table);
2949 $comment_overflows = ($comment and length $comment > $self->pod_comment_spillover_length);
2950 $comment_in_name = ($pcm eq 'name' or ($pcm eq 'auto' and !$comment_overflows));
2951 $comment_in_desc = ($pcm eq 'description' or ($pcm eq 'auto' and $comment_overflows));
2953 $pod .= "=head1 NAME\n\n";
2955 my $table_descr = $class;
2956 $table_descr .= " - " . $comment if $comment and $comment_in_name;
2958 $pod .= "$table_descr\n\n";
2960 if ($comment and $comment_in_desc) {
2961 $pod .= "=head1 DESCRIPTION\n\n${comment}\n\n";
2968 # generates the accompanying pod for a DBIC class method statement,
2969 # storing it with $self->_pod
2975 if ($method eq 'table') {
2977 $table = $$table if ref $table eq 'SCALAR';
2978 $self->_pod($class, "=head1 TABLE: C<$table>");
2979 $self->_pod_cut($class);
2981 elsif ( $method eq 'add_columns' ) {
2982 $self->_pod( $class, "=head1 ACCESSORS" );
2983 my $col_counter = 0;
2985 while( my ($name,$attrs) = splice @cols,0,2 ) {
2987 $self->_pod( $class, '=head2 ' . $name );
2988 $self->_pod( $class,
2990 my $s = $attrs->{$_};
2991 $s = !defined $s ? 'undef' :
2992 length($s) == 0 ? '(empty string)' :
2993 ref($s) eq 'SCALAR' ? $$s :
2994 ref($s) ? dumper_squashed $s :
2995 looks_like_number($s) ? $s : qq{'$s'};
2998 } sort keys %$attrs,
3000 if (my $comment = $self->__column_comment($self->class_to_table->{$class}, $col_counter, $name)) {
3001 $self->_pod( $class, $comment );
3004 $self->_pod_cut( $class );
3005 } elsif ( $method =~ /^(?:belongs_to|has_many|might_have)\z/ ) {
3006 $self->_pod( $class, "=head1 RELATIONS" ) unless $self->{_relations_started} { $class } ;
3007 my ( $accessor, $rel_class ) = @_;
3008 $self->_pod( $class, "=head2 $accessor" );
3009 $self->_pod( $class, 'Type: ' . $method );
3010 $self->_pod( $class, "Related object: L<$rel_class>" );
3011 $self->_pod_cut( $class );
3012 $self->{_relations_started} { $class } = 1;
3013 } elsif ( $method eq 'many_to_many' ) {
3014 $self->_pod( $class, "=head1 RELATIONS" ) unless $self->{_relations_started} { $class } ;
3015 my ( $accessor, $rel1, $rel2 ) = @_;
3016 $self->_pod( $class, "=head2 $accessor" );
3017 $self->_pod( $class, 'Type: many_to_many' );
3018 $self->_pod( $class, "Composing rels: L</$rel1> -> $rel2" );
3019 $self->_pod_cut( $class );
3020 $self->{_relations_started} { $class } = 1;
3022 elsif ($method eq 'add_unique_constraint') {
3023 $self->_pod($class, '=head1 UNIQUE CONSTRAINTS')
3024 unless $self->{_uniqs_started}{$class};
3026 my ($name, $cols) = @_;
3028 $self->_pod($class, "=head2 C<$name>");
3029 $self->_pod($class, '=over 4');
3031 foreach my $col (@$cols) {
3032 $self->_pod($class, "=item \* L</$col>");
3035 $self->_pod($class, '=back');
3036 $self->_pod_cut($class);
3038 $self->{_uniqs_started}{$class} = 1;
3040 elsif ($method eq 'set_primary_key') {
3041 $self->_pod($class, "=head1 PRIMARY KEY");
3042 $self->_pod($class, '=over 4');
3044 foreach my $col (@_) {
3045 $self->_pod($class, "=item \* L</$col>");
3048 $self->_pod($class, '=back');
3049 $self->_pod_cut($class);
3053 sub _pod_class_list {
3054 my ($self, $class, $title, @classes) = @_;
3056 return unless @classes && $self->generate_pod;
3058 $self->_pod($class, "=head1 $title");
3059 $self->_pod($class, '=over 4');
3061 foreach my $link (@classes) {
3062 $self->_pod($class, "=item * L<$link>");
3065 $self->_pod($class, '=back');
3066 $self->_pod_cut($class);
3069 sub _base_class_pod {
3070 my ($self, $base_class) = @_;
3072 return '' unless $self->generate_pod;
3074 return "\n=head1 BASE CLASS: L<$base_class>\n\n=cut\n\n";
3077 sub _filter_comment {
3078 my ($self, $txt) = @_;
3080 $txt = '' if not defined $txt;
3082 $txt =~ s/(?:\015?\012|\015\012?)/\n/g;
3087 sub __table_comment {
3090 if (my $code = $self->can('_table_comment')) {
3091 return $self->_filter_comment($self->$code(@_));
3097 sub __column_comment {
3100 if (my $code = $self->can('_column_comment')) {
3101 return $self->_filter_comment($self->$code(@_));
3107 # Stores a POD documentation
3109 my ($self, $class, $stmt) = @_;
3110 $self->_raw_stmt( $class, "\n" . $stmt );
3114 my ($self, $class ) = @_;
3115 $self->_raw_stmt( $class, "\n=cut\n" );
3118 # Store a raw source line for a class (for dumping purposes)
3120 my ($self, $class, $stmt) = @_;
3121 push(@{$self->{_dump_storage}->{$class}}, $stmt);
3124 # Like above, but separately for the externally loaded stuff
3126 my ($self, $class, $stmt) = @_;
3127 push(@{$self->{_ext_storage}->{$class}}, $stmt);
3130 sub _custom_column_info {
3131 my ( $self, $table_name, $column_name, $column_info ) = @_;
3133 if (my $code = $self->custom_column_info) {
3134 return $code->($table_name, $column_name, $column_info) || {};
3139 sub _datetime_column_info {
3140 my ( $self, $table_name, $column_name, $column_info ) = @_;
3142 my $type = $column_info->{data_type} || '';
3143 if ((grep $_, @{ $column_info }{map "inflate_$_", qw/date datetime timestamp/})
3144 or ($type =~ /date|timestamp/i)) {
3145 $result->{timezone} = $self->datetime_timezone if $self->datetime_timezone;
3146 $result->{locale} = $self->datetime_locale if $self->datetime_locale;
3152 my ($self, $name) = @_;
3154 return $self->preserve_case ? $name : lc($name);
3158 my ($self, $name) = @_;
3160 return $self->preserve_case ? $name : uc($name);
3164 my ($self, $table) = @_;
3167 my $schema = $self->schema;
3168 # in older DBIC it's a private method
3169 my $unregister = $schema->can('unregister_source') || $schema->can('_unregister_source');
3170 $schema->$unregister(delete $self->monikers->{$table->sql_name});
3171 delete $self->_upgrading_classes->{delete $self->classes->{$table->sql_name}};
3172 delete $self->_tables->{$table->sql_name};
3176 # remove the dump dir from @INC on destruction
3180 @INC = grep $_ ne $self->dump_directory, @INC;
3185 Returns a hashref of loaded table to moniker mappings. There will
3186 be two entries for each table, the original name and the "normalized"
3187 name, in the case that the two are different (such as databases
3188 that like uppercase table names, or preserve your original mixed-case
3189 definitions, or what-have-you).
3193 Returns a hashref of table to class mappings. In some cases it will
3194 contain multiple entries per table for the original and normalized table
3195 names, as above in L</monikers>.
3197 =head2 generated_classes
3199 Returns an arrayref of classes that were actually generated (i.e. not
3200 skipped because there were no changes).
3202 =head1 NON-ENGLISH DATABASES
3204 If you use the loader on a database with table and column names in a language
3205 other than English, you will want to turn off the English language specific
3208 To do so, use something like this in your loader options:
3210 naming => { monikers => 'v4' },
3211 inflect_singular => sub { "$_[0]_rel" },
3212 inflect_plural => sub { "$_[0]_rel" },
3214 =head1 COLUMN ACCESSOR COLLISIONS
3216 Occasionally you may have a column name that collides with a perl method, such
3217 as C<can>. In such cases, the default action is to set the C<accessor> of the
3218 column spec to C<undef>.
3220 You can then name the accessor yourself by placing code such as the following
3223 __PACKAGE__->add_column('+can' => { accessor => 'my_can' });
3225 Another option is to use the L</col_collision_map> option.
3227 =head1 RELATIONSHIP NAME COLLISIONS
3229 In very rare cases, you may get a collision between a generated relationship
3230 name and a method in your Result class, for example if you have a foreign key
3231 called C<belongs_to>.
3233 This is a problem because relationship names are also relationship accessor
3234 methods in L<DBIx::Class>.
3236 The default behavior is to append C<_rel> to the relationship name and print
3237 out a warning that refers to this text.
3239 You can also control the renaming with the L</rel_collision_map> option.
3243 L<DBIx::Class::Schema::Loader>, L<dbicdump>
3247 See L<DBIx::Class::Schema::Loader/AUTHORS>.
3251 This library is free software; you can redistribute it and/or modify it under
3252 the same terms as Perl itself.
3257 # vim:et sts=4 sw=4 tw=0: