+__PACKAGE__->before_save('_before_save_set_customernumber');
+
+sub _before_save_set_customernumber {
+ my ($self) = @_;
+
+ $self->create_trans_number if $self->customernumber eq '';
+}
+
+sub short_address {
+ my ($self) = @_;
+
+ return join ', ', grep { $_ } $self->street, $self->zipcode, $self->city;
+}
+