expander seems to be immutable

pangloss · Nov 13, 2013 · b9be066 · b9be066
1 parent fb7f593
commit b9be066
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/pacer-neo4j/algo.rb b/lib/pacer-neo4j/algo.rb
@@ -358,13 +358,13 @@ def build_expander
         else
           e = Traversal.emptyExpander
           [*out_labels].each do |label|
-            e.add DynamicRelationshipType.withName(label.to_s), Direction::OUTGOING
+            e = e.add DynamicRelationshipType.withName(label.to_s), Direction::OUTGOING
           end
           [*in_labels].each do |label|
-            e.add DynamicRelationshipType.withName(label.to_s), Direction::INCOMING
+            e = e.add DynamicRelationshipType.withName(label.to_s), Direction::INCOMING
           end
           [*both_labels].each do |label|
-            e.add DynamicRelationshipType.withName(label.to_s), Direction::BOTH
+            e = e.add DynamicRelationshipType.withName(label.to_s), Direction::BOTH
           end
           e
         end