repair WIP stat on queues

dream/simulation/GUI/Default.py

@@ -375,6 +375,9 @@ class Simulation(object):
             "start": 1,
             "stop": -1
         }
+      for node in data["nodes"].values():
+        if node['_class'] in ('Dream.Queue', ):
+          node['gatherWipStat'] = 1
     return data
 
   def run(self, data):

dream/simulation/Globals.py

@@ -260,7 +260,7 @@ from Queue import Queue
 def countQueueMetrics(argumentDict={}):
     for obj in G.ObjList:
         if isinstance(obj, Queue):
-            obj.wip_stat_list.append((G.env.now, len(obj.Res.activeQ)))
+            obj.wipStatList.append((G.env.now, len(obj.Res.users)))
 
 
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