Merge pull request #131 from thorsteneckel/feature-delete_existing_session_only

Improved performance of delete_session in case there is none

Author: rafaelfranca

lib/action_dispatch/session/active_record_store.rb

@@ -98,7 +98,7 @@ def write_session(request, sid, session_data, options)
       def delete_session(request, session_id, options)
         logger.silence_logger do
           if sid = current_session_id(request)
-            if model = get_session_model(request, sid)
+            if model = @@session_class.find_by_session_id(sid)
               data = model.data
               model.destroy
             end