X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/kivitendo-erp.git/blobdiff_plain/7196276bca4a155d1bcc3947859bc7d4ec1edcd6..0fdf58910b8cd0b54e3d2213a27dab2ffe149bfe:/SL/DB/Letter.pm

diff --git a/SL/DB/Letter.pm b/SL/DB/Letter.pm
index 27b0cff47..0753d6759 100644
--- a/SL/DB/Letter.pm
+++ b/SL/DB/Letter.pm
@@ -28,4 +28,28 @@ sub new_from_draft {
   $self;
 }
 
+sub is_sales {
+  die 'not an accessor' if @_ > 1;
+  $_[0]{customer_id} * 1;
+}
+
+sub has_customer_vendor {
+  my ($self) = @_;
+  die 'not an accessor' if @_ > 1;
+
+  return $self->is_sales
+    ? ($self->customer_id && $self->customer)
+    : ($self->vendor_id   && $self->vendor);
+}
+
+sub customer_vendor {
+  die 'not an accessor' if @_ > 1;
+  $_[0]->is_sales ? $_[0]->customer : $_[0]->vendor;
+}
+
+sub customer_vendor_id {
+  die 'not an accessor' if @_ > 1;
+  $_[0]->customer_id || $_[0]->vendor_id;
+}
+
 1;