sub throw_exception {
my $self=shift;
- $self->_source_handle->schema->throw_exception(@_);
+ if (ref $self && $self->_source_handle->schema) {
+ $self->_source_handle->schema->throw_exception(@_)
+ } else {
+ croak(@_);
+ }
+
}
# XXX: FIXME: Attributes docs need clearing up