Add feedback when voting

vedia.rb

@@ -510,15 +510,15 @@ post '/votes/:id/ratings' do
   end
   if not @errors.empty?
     @params = params
-    erb :votes_show_open
   else
     @vote.candidates.each do |candidate|
       rating = Rating.find_or_initialize_by(vote: @vote, user: current_user, candidate: candidate)
       rating.value = params[candidate.id.to_s]
       rating.save
     end
-    redirect '/votes/' + @vote.secure_id
+    @voted = true
   end
+  erb :votes_show_open
 end
 
 get '/votes/:id/organizers' do