lib/config/validation/error.rb in config-1.7.2 vs lib/config/validation/error.rb in config-2.0.0

@@ -1,23 +1,12 @@
 module Config
   module Validation
     class Error < StandardError
 
       def self.format(v_res)
-        flatten_hash(v_res.messages).map do |field, msgs|
-          "#{' ' * 2}#{field}: #{msgs.join('; ')}"
+        v_res.errors.group_by(&:path).map do |path, messages|
+          "#{' ' * 2}#{path.join('.')}: #{messages.map(&:text).join('; ')}"
         end.join("\n")
-      end
-
-      def self.flatten_hash(h, acc={}, pref=[])
-        h.inject(acc) do |a, (k, v)|
-          if v.is_a?(Hash)
-            flatten_hash(v, acc, pref + [k])
-          else
-            acc[(pref + [k]).join('.')] = v
-            acc
-          end
-        end
       end
 
     end
   end
 end