)
}
- if (!$self->record->customer) {
+ if (!$self->record->can('customer') || !$self->record->customer) {
return SL::PriceSource::Discount->new(
discount => $customer->discount,
spec => $customer->id,
spec => $customer->id,
description => t8('Customer Discount'),
price_source => $self,
- invalid => t8('This discount is only valid for customer #1', $customer->full_description),
+ invalid => t8('This discount is only valid for customer #1', $customer->displayable_name),
)
}