X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FPK%2FAuto.pm;h=41c14a615c1a7a8a8412bcc8ee845270f4f338a9;hb=dd3583f282f6807ac7857c2d6b7a3ddd85a11ab4;hp=43a1ece3239a9a8cc7069777943cf4becf860762;hpb=daec44b85cffd777869c9652273670b27625e167;p=dbsrgits%2FDBIx-Class-Historic.git

diff --git a/lib/DBIx/Class/PK/Auto.pm b/lib/DBIx/Class/PK/Auto.pm
index 43a1ece..41c14a6 100644
--- a/lib/DBIx/Class/PK/Auto.pm
+++ b/lib/DBIx/Class/PK/Auto.pm
@@ -1,55 +1,78 @@
 package DBIx::Class::PK::Auto;
 
+#use base qw/DBIx::Class::PK/;
+use base qw/DBIx::Class/;
 use strict;
 use warnings;
 
-=head1 NAME 
+=head1 NAME
 
-DBIx::Class::PK::Auto - Automatic Primary Key class
+DBIx::Class::PK::Auto - Automatic primary key class
 
 =head1 SYNOPSIS
 
+__PACKAGE__->load_components(qw/PK::Auto Core/);
+__PACKAGE__->set_primary_key('id');
+
 =head1 DESCRIPTION
 
-This class overrides the insert method to get automatically
-incremented primary keys.
+This class overrides the insert method to get automatically incremented primary
+keys.
 
-You don't want to be using this directly - instead load the appropriate
-one for your database, e.g. PK::Auto::SQLite
+  __PACKAGE__->load_components(qw/PK::Auto Core/);
 
-=head1 METHODS
+Note that C<PK::Auto> is specified as the left of the Core component.
+See L<DBIx::Class::Manual::Component> for details of component interactions.
+
+=head1 LOGIC
+
+C<PK::Auto> does this by letting the database assign the primary key field and
+fetching the assigned value afterwards.
 
-=over 4
+=head1 METHODS
 
-=item insert
+=head2 insert
 
-Overrides insert so that it will get the value of autoincremented
-primary keys.
+Overrides C<insert> so that it will get the value of autoincremented primary
+keys.
 
 =cut
 
 sub insert {
   my ($self, @rest) = @_;
-  my $ret = $self->NEXT::ACTUAL::insert(@rest);
-  my ($pri, $too_many) =
-    (grep { $self->_primaries->{$_}{'auto_increment'} }
-       keys %{ $self->_primaries })
-    || (keys %{ $self->_primaries });
-  $self->throw( "More than one possible key found for auto-inc on ".ref $self )
-    if $too_many;
-  unless (defined $self->get_column($pri)) {
-    $self->throw( "Can't auto-inc for $pri on ".ref $self.": no _last_insert_id method" )
-      unless $self->can('last_insert_id');
-    my $id = $self->last_insert_id;
-    $self->throw( "Can't get last insert id" ) unless $id;
-    $self->store_column($pri => $id);
-  }
+  my $ret = $self->next::method(@rest);
+
+  my ($pri, $too_many) = grep { !defined $self->get_column($_) || 
+                                    ref($self->get_column($_)) eq 'SCALAR'} $self->primary_columns;
+  return $ret unless defined $pri; # if all primaries are already populated, skip auto-inc
+  $self->throw_exception( "More than one possible key found for auto-inc on ".ref $self )
+    if defined $too_many;
+
+  my $storage = $self->result_source->storage;
+  $self->throw_exception( "Missing primary key but Storage doesn't support last_insert_id" )
+    unless $storage->can('last_insert_id');
+  my $id = $storage->last_insert_id($self->result_source,$pri);
+  $self->throw_exception( "Can't get last insert id" ) unless $id;
+  $self->store_column($pri => $id);
+
   return $ret;
 }
 
-1;
+=head2 sequence
+
+Manually define the correct sequence for your table, to avoid the overhead
+associated with looking up the sequence automatically.
+
+=cut
 
-=back
+sub sequence {
+    my ($self,$seq) = @_;
+    foreach my $pri ($self->primary_columns) {
+        $self->column_info($pri)->{sequence} = $seq;
+    }
+}
+
+1;
 
 =head1 AUTHORS
 
@@ -60,4 +83,3 @@ Matt S. Trout <mst@shadowcatsystems.co.uk>
 You may distribute this code under the same terms as Perl itself.
 
 =cut
-