Keep queueuing time

common/lib/capa/capa/correctmap.py

@@ -73,6 +73,9 @@ class CorrectMap(object):
     def is_right_queuekey(self, answer_id, test_key):
         return self.is_queued(answer_id) and self.cmap[answer_id]['queuestate'][0] == test_key
 
+    def get_queuetime_str(self, answer_id):
+        return self.cmap[answer_id]['queuestate'][1] if self.is_queued(answer_id) else None 
+
     def get_npoints(self, answer_id):
         npoints = self.get_property(answer_id, 'npoints')
         if npoints is not None:

common/lib/capa/capa/responsetypes.py

@@ -1149,7 +1149,10 @@ class CodeResponse(LoncapaResponse):
             (error, msg) = qinterface.send_to_queue(header=xheader,
                                                     body=json.dumps(contents))
 
-        queuestate = (queuekey,'')
+        # State associated with the queueing request
+        qtime = datetime.strftime(datetime.now(), '%Y%m%d%H%M%S')
+        queuestate = (queuekey, qtime)
+
         cmap = CorrectMap() 
         if error:
             cmap.set(self.answer_id, queuestate=None,