json.rb in roda-1.2.0

- old
+ new

@@ -34,23 +34,17 @@
     #   plugin :json
     #   json_result_classes << Sequel::Model
     module Json
       # Set the classes to automatically convert to JSON
       def self.configure(app)
-        app.instance_eval do
-          @json_result_classes ||= [Array, Hash]
-        end
+        app.opts[:json_result_classes] ||= [Array, Hash]
       end
 
       module ClassMethods
         # The classes that should be automatically converted to json
-        attr_reader :json_result_classes
-
-        # Copy the json_result_classes into the subclass
-        def inherited(subclass)
-          super
-          subclass.instance_variable_set(:@json_result_classes, json_result_classes.dup)
+        def json_result_classes
+          opts[:json_result_classes]
         end
       end
 
       module RequestMethods
         CONTENT_TYPE = 'Content-Type'.freeze
@@ -61,10 +55,10 @@
         # If the result is an instance of one of the json_result_classes,
         # convert the result to json and return it as the body, using the
         # application/json content-type.
         def block_result_body(result)
           case result
-          when *self.class.roda_class.json_result_classes
+          when *roda_class.json_result_classes
             response[CONTENT_TYPE] = APPLICATION_JSON
             convert_to_json(result)
           else
             super
           end