lib/reckon/app.rb in reckon-0.4.1 vs lib/reckon/app.rb in reckon-0.4.2

@@ -37,10 +37,13 @@
     def already_seen?(row)
       seen[row[:pretty_date]] && seen[row[:pretty_date]][row[:pretty_money]]
     end
 
     def extract_account_tokens(subtree, account = nil)
-      if subtree.is_a?(Array)
+      if subtree.nil?
+        puts "Warning: empty #{account} tree"
+        {}
+      elsif subtree.is_a?(Array)
         { account => subtree }
       else
         at = subtree.map { |k, v| extract_account_tokens(v, [account, k].compact.join(':')) }
         at.inject({}) { |k, v| k = k.merge(v)}
       end