+__PACKAGE__->add_filter_specs(
+ reqdate => sub {
+ my ($key, $value, $prefix) = @_;
+
+ return or => [
+ $prefix . reqdate => $value,
+ and => [
+ $prefix . reqdate => undef,
+ $prefix . 'order.reqdate' => $value,
+ ]
+ ], $prefix . 'order';
+ },
+);
+