making flex charts login required

rowers/views.py

@@ -8742,12 +8742,13 @@ def workout_workflow_view(request,id):
                   })
 
 # The famous flex chart
+@login_required()
 def workout_flexchart3_view(request,*args,**kwargs):
     
     try:
         id = kwargs['id']
     except KeyError:
-        return HttpResponse("Invalid workout number")
+        raise Http404("Invalid workout number")
     
     if 'promember' in kwargs:
         promember = kwargs['promember']