X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FPK%2FAuto.pm;h=b7ebda70937e8a584712ce3ef9a372e6fec90962;hb=7223a5ce4537097282af3bc892cf6477baa6a3a7;hp=b9507a890193023a7535e5ddc15977aea55ed014;hpb=b8e1e21f0fcd55e6e3ce987e57601b279a75b666;p=dbsrgits%2FDBIx-Class-Historic.git

diff --git a/lib/DBIx/Class/PK/Auto.pm b/lib/DBIx/Class/PK/Auto.pm
index b9507a8..b7ebda7 100644
--- a/lib/DBIx/Class/PK/Auto.pm
+++ b/lib/DBIx/Class/PK/Auto.pm
@@ -1,25 +1,83 @@
 package DBIx::Class::PK::Auto;
 
+#use base qw/DBIx::Class::PK/;
+use base qw/DBIx::Class/;
 use strict;
 use warnings;
 
+=head1 NAME
+
+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.
+
+  __PACKAGE__->load_components(qw/PK::Auto Core/);
+
+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.
+
+=head1 METHODS
+
+=head2 insert
+
+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 });
-  die "More than one possible key found for auto-inc on ".ref $self
-    if $too_many;
-  unless (exists $self->{_column_data}{$pri}) {
-    die "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;
-    die "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 $self->get_column($_) } $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;
 }
 
+=head2 sequence
+
+Manually define the correct sequence for your table, to avoid the overhead
+associated with looking up the sequence automatically.
+
+=cut
+
+sub sequence {
+    my ($self,$seq) = @_;
+    foreach my $pri ($self->primary_columns) {
+        $self->column_info($pri)->{sequence} = $seq;
+    }
+}
+
 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