Remove unnecessary Serializer#cached_fields

Author: bf4

lib/active_model/serializer/caching.rb

@@ -206,15 +206,6 @@ def object_cache_key(serializer, adapter_instance)
         end
       end
 
-      # Get attributes from @cached_attributes
-      # @return [Hash] cached attributes
-      # def cached_attributes(fields, adapter_instance)
-      def cached_fields(fields, adapter_instance)
-        cache_check(adapter_instance) do
-          attributes(fields)
-        end
-      end
-
       def cache_check(adapter_instance)
         if self.class.cache_enabled?
           self.class.cache_store.fetch(cache_key(adapter_instance), self.class._cache_options) do

lib/active_model_serializers/adapter/attributes.rb

@@ -37,10 +37,14 @@ def serializable_hash_for_single_resource(options)
             cached_attributes = instance_options[:cached_attributes] || {}
             key = serializer.cache_key(self)
             cached_attributes.fetch(key) do
-              serializer.cached_fields(options[:fields], self)
+              serializer.cache_check(self) do
+                serializer.attributes(options[:fields])
+              end
             end
           else
-            serializer.cached_fields(options[:fields], self)
+            serializer.cache_check(self) do
+              serializer.attributes(options[:fields])
+            end
           end
         relationships = resource_relationships(options)
         resource.merge(relationships)