operators not presented in Gantt if they have no schedule

dream/plugins/JSOperatorGantt.py

@@ -29,17 +29,19 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
     for element in resultElements:
       if element['_class'] in self.OPERATOR_CLASS_SET:
         operatorId=element['id']
-        # add the operator in the task_dict
-        task_dict[element['id']] = dict(
-          id=operatorId,
-          text=operatorId,
-          type='operator',
-          open=False)
     
         k=1
         
         schedule=element['results'].get('schedule', [])
         if schedule:
+
+          # add the operator in the task_dict
+          task_dict[element['id']] = dict(
+            id=operatorId,
+            text=operatorId,
+            type='operator',
+            open=False)
+
           for record in schedule:
             entranceTime=record['entranceTime']
             exitTime = record.get("exitTime", None)
@@ -48,11 +50,21 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
                 exitTime=schedule[k]['entranceTime']
               except IndexError:
                 exitTime=maxSimTime    
-            k+=1     
-            task_dict[operatorId+record['stationId']+str(k)] = dict(
-              id=operatorId+record['stationId']+str(k),
+            k+=1
+            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(
@@ -60,8 +72,7 @@ class JSOperatorGantt(plugin.OutputPreparationPlugin, TimeSupportMixin):
               open=False,
               entranceTime=entranceTime,
               duration=exitTime-entranceTime,
-            )           
-         
+            )
     # return the result to the gadget
     result = data['result']['result_list'][-1]
     result[self.configuration_dict['output_id']] = dict(