transdate Sortierung bei OrderItem war nicht eindeutig

[kivitendo-erp.git] / SL / DB / PurchaseInvoice.pm

diff --git a/SL/DB/PurchaseInvoice.pm b/SL/DB/PurchaseInvoice.pm
index 5123d68..da34a27 100644 (file)
--- a/SL/DB/PurchaseInvoice.pm
+++ b/SL/DB/PurchaseInvoice.pm
@@ -2,6 +2,8 @@ package SL::DB::PurchaseInvoice;
 
 use strict;
 
+use Carp;
+
 use SL::DB::MetaSetup::PurchaseInvoice;
 use SL::DB::Manager::PurchaseInvoice;
 use SL::DB::Helper::LinkedRecords;
@@ -19,4 +21,10 @@ __PACKAGE__->meta->initialize;
 
 sub items { goto &invoiceitems; }
 
+sub is_sales {
+  # For compatibility with Order, DeliveryOrder
+  croak 'not an accessor' if @_ > 1;
+  return 0;
+}
+
 1;