X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass.pm;h=49c83d53a370885dfcc509acebab598b053e26f2;hb=4a743a005ead99a89cccf56adbaaac17feca54fd;hp=3f267ea28655c86c5ad3c339576ef1e5a324460b;hpb=9f5cdfb0203436b910f0e7c75e6ac4fda143a19d;p=dbsrgits%2FDBIx-Class.git diff --git a/lib/DBIx/Class.pm b/lib/DBIx/Class.pm index 3f267ea..49c83d5 100644 --- a/lib/DBIx/Class.pm +++ b/lib/DBIx/Class.pm @@ -5,6 +5,7 @@ use warnings; use vars qw($VERSION); use base qw/DBIx::Class::Componentised Class::Accessor::Grouped/; +use DBIx::Class::StartupCheck; sub mk_classdata { @@ -23,7 +24,9 @@ sub component_base_class { 'DBIx::Class' } # i.e. first release of 0.XX *must* be 0.XX000. This avoids fBSD ports # brain damage and presumably various other packaging systems too -$VERSION = '0.08003'; +$VERSION = '0.08099_04'; + +$VERSION = eval $VERSION; # numify for warning-free dev releases sub MODIFY_CODE_ATTRIBUTES { my ($class,$code,@attrs) = @_; @@ -46,48 +49,62 @@ sub _attr_cache { DBIx::Class - Extensible and flexible object <-> relational mapper. +=head1 GETTING HELP/SUPPORT + +The community can be found via: + + Mailing list: http://lists.scsys.co.uk/mailman/listinfo/dbix-class/ + + SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/ + + SVNWeb: http://dev.catalyst.perl.org/svnweb/bast/browse/DBIx-Class/ + + IRC: irc.perl.org#dbix-class + =head1 SYNOPSIS -Create a schema class called DB/Main.pm: +Create a schema class called MyDB/Schema.pm: - package DB::Main; + package MyDB::Schema; use base qw/DBIx::Class::Schema/; __PACKAGE__->load_classes(); 1; -Create a table class to represent artists, who have many CDs, in DB/Main/Artist.pm: +Create a table class to represent artists, who have many CDs, in +MyDB/Schema/Artist.pm: - package DB::Main::Artist; + package MyDB::Schema::Artist; use base qw/DBIx::Class/; - __PACKAGE__->load_components(qw/PK::Auto Core/); + __PACKAGE__->load_components(qw/Core/); __PACKAGE__->table('artist'); __PACKAGE__->add_columns(qw/ artistid name /); __PACKAGE__->set_primary_key('artistid'); - __PACKAGE__->has_many(cds => 'DB::Main::CD'); + __PACKAGE__->has_many(cds => 'MyDB::Schema::CD'); 1; -A table class to represent a CD, which belongs to an artist, in DB/Main/CD.pm: +A table class to represent a CD, which belongs to an artist, in +MyDB/Schema/CD.pm: - package DB::Main::CD; + package MyDB::Schema::CD; use base qw/DBIx::Class/; - __PACKAGE__->load_components(qw/PK::Auto Core/); + __PACKAGE__->load_components(qw/Core/); __PACKAGE__->table('cd'); - __PACKAGE__->add_columns(qw/ cdid artist title year /); + __PACKAGE__->add_columns(qw/ cdid artistid title year /); __PACKAGE__->set_primary_key('cdid'); - __PACKAGE__->belongs_to(artist => 'DB::Main::Artist'); + __PACKAGE__->belongs_to(artist => 'MyDB::Schema::Artist', 'artistid'); 1; Then you can use these classes in your application's code: # Connect to your database. - use DB::Main; - my $schema = DB::Main->connect($dbi_dsn, $user, $pass, \%dbi_params); + use MyDB::Schema; + my $schema = MyDB::Schema->connect($dbi_dsn, $user, $pass, \%dbi_params); # Query for all artists and put them in an array, # or retrieve them as a result set object. @@ -113,7 +130,7 @@ Then you can use these classes in your application's code: { order_by => 'title' } ); - # Create a result set that will fetch the artist relationship + # Create a result set that will fetch the artist data # at the same time as it fetches CDs, using only one query. my $millennium_cds_rs = $schema->resultset('CD')->search( { year => 2000 }, @@ -121,8 +138,10 @@ Then you can use these classes in your application's code: ); my $cd = $millennium_cds_rs->next; # SELECT ... FROM cds JOIN artists ... - my $cd_artist_name = $cd->artist->name; # Already has the data so no query + my $cd_artist_name = $cd->artist->name; # Already has the data so no 2nd query + # new() makes a DBIx::Class::Row object but doesnt insert it into the DB. + # create() is the same as new() then insert(). my $new_cd = $schema->resultset('CD')->new({ title => 'Spoon' }); $new_cd->artist($cd->artist); $new_cd->insert; # Auto-increment primary key filled in after INSERT @@ -130,17 +149,18 @@ Then you can use these classes in your application's code: $schema->txn_do(sub { $new_cd->update }); # Runs the update in a transaction - $millennium_cds_rs->update({ year => 2002 }); # Single-query bulk update + # change the year of all the millennium CDs at once + $millennium_cds_rs->update({ year => 2002 }); =head1 DESCRIPTION This is an SQL to OO mapper with an object API inspired by L -(and a compatibility layer as a springboard for porting) and a resultset API +(with a compatibility layer as a springboard for porting) and a resultset API that allows abstract encapsulation of database operations. It aims to make representing queries in your code as perl-ish as possible while still providing access to as many of the capabilities of the database as possible, including retrieving related records from multiple tables in a single query, -JOIN, LEFT JOIN, COUNT, DISTINCT, GROUP BY and HAVING support. +JOIN, LEFT JOIN, COUNT, DISTINCT, GROUP BY, ORDER BY and HAVING support. DBIx::Class can handle multi-column primary and foreign keys, complex queries and database-level paging, and does its best to only query the @@ -161,17 +181,9 @@ APIs, since DBIx::Class is used in production in many organisations, and even backwards incompatible changes to non-published APIs will be fixed if they're reported and doing so doesn't cost the codebase anything. -The test suite is quite substantial, and several developer releases are -generally made to CPAN before the -current branch is merged back to trunk for -a major release. - -The community can be found via: - - Mailing list: http://lists.scsys.co.uk/mailman/listinfo/dbix-class/ - - SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/ - - IRC: irc.perl.org#dbix-class +The test suite is quite substantial, and several developer releases +are generally made to CPAN before the branch for the next release is +merged back to trunk for a major release. =head1 WHERE TO GO NEXT @@ -189,16 +201,22 @@ is traditional :) abraxxa: Alexander Hartmaier +aherzog: Adam Herzog + andyg: Andy Grundman ank: Andres Kievsky ash: Ash Berlin +bert: Norbert Csongradi + blblack: Brandon L. Black bluefeet: Aran Deltac +bricas: Brian Cassidy + captainL: Luke Saunders castaway: Jess Robinson @@ -209,29 +227,35 @@ clkao: CL Kao da5id: David Jack Olrik +debolaz: Anders Nor Berle + dkubb: Dan Kubb dnm: Justin Wheeler -draven: Marcus Ramberg - dwc: Daniel Westermann-Clark dyfrgi: Michael Leuchtenburg gphat: Cory G Watson +groditi: Guillermo Roditi + jesper: Jesper Krogh +jgoulah: John Goulah + jguenther: Justin Guenther jnapiorkowski: John Napiorkowski +jon: Jon Schutz + jshirley: J. Shirley konobi: Scott McWhirter -LTJake: Brian Cassidy +marcus: Marcus Ramberg mattlaw: Matt Lawrence @@ -243,22 +267,34 @@ ningu: David Kamholz Numa: Dan Sully +oyse: Øystein Torget + paulm: Paul Makepeace penguin: K J Cheetham +perigrin: Chris Prather + phaylon: Robert Sedlacek quicksilver: Jules Bean +rdj: Ryan D Johnson + sc_: Just Another Perl Hacker scotty: Scotty Allen +semifor: Marc Mims + sszabo: Stephan Szabo +teejay : Aaron Trevena + Todd Lipcon +Tom Hukins + typester: Daisuke Murase victori: Victor Igumnov