Fixed empty PIA segment/id_group

diff --git a/lib/openils/mapper.rb b/lib/openils/mapper.rb
index 5b7043b..6d2fa91 100644 (file)
--- a/lib/openils/mapper.rb
+++ b/lib/openils/mapper.rb
@@ -58,7 +58,7 @@ OpenILS::Mapper.map 'item' do |mapper,key,value|
       result << []
     end
     result
-  }
+  }.reject { |group| group.empty? }
   
   id_groups.each { |group|
     ids = group.compact.collect { |data|