X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/4bc8abba0059b4c7a490a43d1eebfb7a3b4e8647..2a0cbd885790174fa0f212e6661b30362650a42c:/SL/DB/Unit.pm

diff --git a/SL/DB/Unit.pm b/SL/DB/Unit.pm
index 900558fbd..508aa7477 100644
--- a/SL/DB/Unit.pm
+++ b/SL/DB/Unit.pm
@@ -1,5 +1,8 @@
 package SL::DB::Unit;
 
+use List::MoreUtils qw(any);
+
+
 use strict;
 
 use SL::DB::MetaSetup::Unit;
@@ -54,7 +57,13 @@ sub convert_to {
   my $my_base_factor    = $self->base_factor       || 1;
   my $other_base_factor = $other_unit->base_factor || 1;
 
-  return $qty * $my_base_factor / $other_base_factor;
+  return ($qty // 0) * $my_base_factor / $other_base_factor;
+}
+
+sub is_time_based {
+  my ($self) = @_;
+
+  return any { $_->id == $self->id } @{ SL::DB::Manager::Unit->time_based_units };
 }
 
 1;