operators not presented in Gantt if they have no schedule

dream/plugins/JSOperatorGantt.py

@@ -29,6 +29,12 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
     for element in resultElements:
       if element['_class'] in self.OPERATOR_CLASS_SET:
         operatorId=element['id']
+    
+        k=1
+        
+        schedule=element['results'].get('schedule', [])
+        if schedule:
+
           # add the operator in the task_dict
           task_dict[element['id']] = dict(
             id=operatorId,
@@ -36,10 +42,6 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
             type='operator',
             open=False)
 
-        k=1
-        
-        schedule=element['results'].get('schedule', [])
-        if schedule:
           for record in schedule:
             entranceTime=record['entranceTime']
             exitTime = record.get("exitTime", None)
@@ -49,10 +51,20 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
               except IndexError:
                 exitTime=maxSimTime    
             k+=1
-            task_dict[operatorId+record['stationId']+str(k)] = dict(
-              id=operatorId+record['stationId']+str(k),
+            task_id = record.get("task_id", None)
+            if not task_id:
+              task_id = record["stationId"]
+              text_to_display = task_id
+            else:
+              entityId = record.get("entityId", None)
+              if not entityId:
+                text_to_display = task_id + " " + record["stationId"]
+              else:
+                text_to_display = task_id + " " + record["stationId"] + " " + entityId
+            task_dict[operatorId+task_id+str(k)] = dict(
+              id=operatorId+task_id+str(k),
               parent=operatorId,
-              text=record['stationId'],
+              text=text_to_display,
               start_date=self.convertToRealWorldTime(
                     entranceTime).strftime(date_format),
               stop_date=self.convertToRealWorldTime(
@@ -61,7 +73,6 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
               entranceTime=entranceTime,
               duration=exitTime-entranceTime,
             )
-         
     # return the result to the gadget
     result = data['result']['result_list'][-1]
     result[self.configuration_dict['output_id']] = dict(