$self->next::method(@_[1..$#_]);
}
+# CDBI does not explicitly declare auto increment columns, so
+# we just clear out our primary columns before copying.
+sub copy {
+ my($self, $changes) = @_;
+
+ for my $col ($self->primary_columns) {
+ $changes->{$col} = undef unless exists $changes->{$col};
+ }
+
+ return $self->next::method($changes);
+}
+
+sub discard_changes {
+ my($self) = shift;
+
+ delete $self->{_column_data}{$_} for $self->is_changed;
+ delete $self->{_dirty_columns};
+ delete $self->{_relationship_data};
+
+ return $self;
+}
+
sub _ident_cond {
my ($class) = @_;
return join(" AND ", map { "$_ = ?" } $class->primary_columns);