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lib/seems_rateable/app/controllers/seems_rateable/ratings_controller.rb

@@ -3,11 +3,14 @@ require_dependency "seems_rateable/application_controller"
 module SeemsRateable
   class RatingsController < ApplicationController
     def create
-      raise NoCurrentUserInstanceError unless current_user
+      raise Errors::NoCurrentUserInstanceError unless current_user
       obj = params[:kls].classify.constantize.find(params[:idBox])
       obj.rate(params[:rate].to_i, current_user.id, params[:dimension])
   
       render :json => true
+
+    rescue Errors::NoCurrentUserInstanceError
+      render :json => {:error => 'you must be login.'}
     end
   end
 end