add_relationship, relationship_info, relationships moved to ResultSource

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / DB.pm

diff --git a/lib/DBIx/Class/DB.pm b/lib/DBIx/Class/DB.pm
index 3fc3013..3166c98 100644 (file)
--- a/lib/DBIx/Class/DB.pm
+++ b/lib/DBIx/Class/DB.pm
@@ -1,29 +1,128 @@
 package DBIx::Class::DB;
 
-use base qw/Class::Data::Inheritable/;
+use base qw/DBIx::Class/;
+use DBIx::Class::Schema;
+use DBIx::Class::Storage::DBI;
+use DBIx::Class::ClassResolver::PassThrough;
+use DBI;
 
-__PACKAGE__->mk_classdata('_dbi_connect_info');
-__PACKAGE__->mk_classdata('_dbi_connect_package');
-__PACKAGE__->mk_classdata('_dbh');
+__PACKAGE__->load_components(qw/ResultSetInstance/);
 
-sub _get_dbh {
-  my ($class) = @_;
-  unless ((my $dbh = $class->_dbh) && $dbh->FETCH('Active') && $dbh->ping) {
-    $class->_populate_dbh;
+*dbi_commit = \&txn_commit;
+*dbi_rollback = \&txn_rollback;
+
+sub storage { shift->schema_instance(@_)->storage; }
+
+sub resultset_instance {
+  my $class = shift;
+  my $source = $class->result_source;
+  if ($source->result_class ne $class) {
+    $source = $source->new($source);
+    $source->result_class($class);
   }
-  return $class->_dbh;
+  return $source->resultset;
 }
 
-sub _populate_dbh {
-  my ($class) = @_;
-  my @info = @{$class->_dbi_connect_info || []};
-  my $pkg = $class->_dbi_connect_package || $class;
-  $pkg->_dbh($class->_dbi_connect(@info));
-}
+=head1 NAME 
+
+DBIx::Class::DB - Simple DBIx::Class Database connection by class inheritance
+
+=head1 SYNOPSIS
+
+  package MyDB;
+
+  use base qw/DBIx::Class/;
+  __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.
+
+=head1 METHODS
+
+=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('class_resolver' =>
+                            'DBIx::Class::ClassResolver::PassThrough');
+
+=head2 connection
+
+  __PACKAGE__->connection($dsn, $user, $pass, $attrs);
+
+Specifies the arguments that will be passed to DBI->connect(...) to
+instantiate the class dbh when required.
 
-sub _dbi_connect {
+=cut
+
+sub connection {
   my ($class, @info) = @_;
-  return DBI->connect_cached(@info);
+  my $storage = DBIx::Class::Storage::DBI->new;
+  $storage->connect_info(\@info);
+  my $schema = bless({ storage => $storage }, 'DBIx::Class::Schema');
+  $class->mk_classdata('schema_instance' => $schema);
+}
+
+=head2 txn_begin
+
+Begins a transaction (does nothing if AutoCommit is off).
+
+=cut
+
+sub txn_begin { $_[0]->storage->txn_begin }
+
+=head2 txn_commit
+
+Commits the current transaction.
+
+=cut
+
+sub txn_commit { $_[0]->storage->txn_commit }
+
+=head2 txn_rollback
+
+Rolls back the current transaction.
+
+=cut
+
+sub txn_rollback { $_[0]->storage->txn_rollback }
+
+{
+  my $warn;
+
+  sub resolve_class {
+    warn "resolve_class deprecated as of 0.04999_02" unless $warn++;
+    return shift->class_resolver->class(@_);
+  }
 }
 
 1;
+
+=head1 AUTHORS
+
+Matt S. Trout <mst@shadowcatsystems.co.uk>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+