lib/jsonapi/link_builder.rb in jsonapi-resources-0.10.0.beta7 vs lib/jsonapi/link_builder.rb in jsonapi-resources-0.10.0.beta8

@@ -121,19 +121,19 @@
     def module_scopes_from_class(klass)
       klass.name.to_s.split("::")[0...-1]
     end
 
     def resources_path(source_klass)
-      formatted_module_path_from_class(source_klass) + format_route(source_klass._type.to_s)
+      @_resources_path ||= {}
+      @_resources_path[source_klass] ||= formatted_module_path_from_class(source_klass) + format_route(source_klass._type.to_s)
     end
 
     def resource_path(source)
-      url = "#{resources_path(source.class)}"
-
-      unless source.class.singleton?
-        url = "#{url}/#{source.id}"
+      if source.class.singleton?
+        resources_path(source.class)
+      else
+        "#{resources_path(source.class)}/#{source.id}"
       end
-      url
     end
 
     def resource_url(source)
       "#{ base_url }#{ engine_mount_point }#{ resource_path(source) }"
     end