Merge pull request #103 from richmolj/missing_serializer

Raise helpful error if missing serializer

Author: wadetandy

lib/jsonapi_compliable/errors.rb

@@ -22,6 +22,23 @@ def message
 
 Looked for '#{@serializer_name}' but doesn't appear to exist.
 
+Use a custom Inferrer if you'd like different lookup logic.
+        MSG
+      end
+    end
+
+    class MissingSerializer < StandardError
+      def initialize(class_name, serializer_name)
+        @class_name = class_name
+        @serializer_name = serializer_name
+      end
+
+      def message
+        <<-MSG
+Could not find serializer for class '#{@class_name}'!
+
+Looked for '#{@serializer_name}' but doesn't appear to exist.
+
 Use a custom Inferrer if you'd like different lookup logic.
         MSG
       end