package DBIx::Class::DB;
-use base qw/Class::Data::Inheritable/;
+use strict;
+use warnings;
+
+use base qw/DBIx::Class/;
+use DBIx::Class::Schema;
use DBIx::Class::Storage::DBI;
use DBIx::Class::ClassResolver::PassThrough;
use DBI;
-=head1 NAME
+__PACKAGE__->load_components(qw/ResultSetProxy/);
+
+{
+ no warnings 'once';
+ *dbi_commit = \&txn_commit;
+ *dbi_rollback = \&txn_rollback;
+}
+
+sub storage { shift->schema_instance(@_)->storage; }
+
+=head1 NAME
-DBIx::Class::DB - Simple DBIx::Class Database connection by class inheritance
+DBIx::Class::DB - (DEPRECATED) classdata schema component
=head1 SYNOPSIS
package MyDB;
use base qw/DBIx::Class/;
- __PACKAGE__->load_components('Core');
+ __PACKAGE__->load_components('DB');
__PACKAGE__->connection('dbi:...', 'user', 'pass', \%attrs);
package MyDB::MyTable;
use base qw/MyDB/;
+ __PACKAGE__->load_components('Core'); # just load this in MyDB if it will
+ # always be there
...
=head1 DESCRIPTION
-This class provides a simple way of specifying a database connection.
+This class is designed to support the Class::DBI connection-as-classdata style
+for DBIx::Class. You are *strongly* recommended to use a DBIx::Class::Schema
+instead; DBIx::Class::DB will not undergo new development and will be moved
+to being a CDBICompat-only component before 1.0.
=head1 METHODS
-=over 4
+=head2 storage
+
+Sets or gets the storage backend. Defaults to L<DBIx::Class::Storage::DBI>.
+
+=head2 class_resolver
+
+****DEPRECATED****
+
+Sets or gets the class to use for resolving a class. Defaults to
+L<DBIx::Class::ClassResolver::Passthrough>, which returns whatever you give
+it. See resolve_class below.
=cut
-__PACKAGE__->mk_classdata('storage');
__PACKAGE__->mk_classdata('class_resolver' =>
- 'DBIx::Class::ClassResolver::PassThrough');
+ 'DBIx::Class::ClassResolver::PassThrough');
-=item connection
+=head2 connection
__PACKAGE__->connection($dsn, $user, $pass, $attrs);
sub connection {
my ($class, @info) = @_;
- my $storage = DBIx::Class::Storage::DBI->new;
- $storage->connect_info(\@info);
- $class->storage($storage);
+ $class->setup_schema_instance unless $class->can('schema_instance');
+ $class->schema_instance->connection(@info);
}
-=item dbi_commit
+=head2 setup_schema_instance
+
+Creates a class method ->schema_instance which contains a DBIx::Class::Schema;
+all class-method operations are proxies through to this object. If you don't
+call ->connection in your DBIx::Class::DB subclass at load time you *must*
+call ->setup_schema_instance in order for subclasses to find the schema and
+register themselves with it.
- $class->dbi_commit;
+=cut
+
+sub setup_schema_instance {
+ my $class = shift;
+ my $schema = {};
+ bless $schema, 'DBIx::Class::Schema';
+ $class->mk_classdata('schema_instance' => $schema);
+}
-Issues a commit again the current dbh
+=head2 txn_begin
+
+Begins a transaction (does nothing if AutoCommit is off).
=cut
-sub dbi_commit { $_[0]->storage->commit; }
+sub txn_begin { shift->schema_instance->txn_begin(@_); }
+
+=head2 txn_commit
-=item dbi_rollback
+Commits the current transaction.
- $class->dbi_rollback;
+=cut
+
+sub txn_commit { shift->schema_instance->txn_commit(@_); }
+
+=head2 txn_rollback
-Issues a rollback again the current dbh
+Rolls back the current transaction.
=cut
-sub dbi_rollback { $_[0]->storage->rollback; }
+sub txn_rollback { shift->schema_instance->txn_rollback(@_); }
-sub resolve_class { return shift->class_resolver->class(@_); }
+=head2 txn_do
-1;
+Executes a block of code transactionally. If this code reference
+throws an exception, the transaction is rolled back and the exception
+is rethrown. See L<DBIx::Class::Schema/"txn_do"> for more details.
+
+=cut
+
+sub txn_do { shift->schema_instance->txn_do(@_); }
+
+{
+ my $warn;
+
+ sub resolve_class {
+ warn "resolve_class deprecated as of 0.04999_02" unless $warn++;
+ return shift->class_resolver->class(@_);
+ }
+}
+
+=head2 resultset_instance
+
+Returns an instance of a resultset for this class - effectively
+mapping the L<Class::DBI> connection-as-classdata paradigm into the
+native L<DBIx::Class::ResultSet> system.
+
+=cut
+
+sub resultset_instance {
+ my $class = ref $_[0] || $_[0];
+ my $source = $class->result_source_instance;
+ if ($source->result_class ne $class) {
+ $source = $source->new($source);
+ $source->result_class($class);
+ }
+ return $source->resultset;
+}
+
+=head2 resolve_class
+
+****DEPRECATED****
+
+See L<class_resolver>
+
+=head2 dbi_commit
-=back
+****DEPRECATED****
+
+Alias for L<txn_commit>
+
+=head2 dbi_rollback
+
+****DEPRECATED****
+
+Alias for L<txn_rollback>
=head1 AUTHORS
-Matt S. Trout <perl-stuff@trout.me.uk>
+Matt S. Trout <mst@shadowcatsystems.co.uk>
=head1 LICENSE
=cut
+1;