-When adding new invoices, owed must be charged (or null, in which case it is
-automatically set to charged).
-
-=cut
-
-sub insert {
- my $self = shift;
-
- $self->owed( $self->charged ) if $self->owed eq '';
- return "owed != charged!"
- unless $self->owed == $self->charged;
-
- $self->SUPER::insert;
-}
-