bug fix in C2 upload

rowers/views.py

@@ -895,6 +895,16 @@ def workout_c2_upload_view(request,id=0):
             return HttpResponseRedirect("/rowers/me/c2authorize")
             
 	data = c2stuff.createc2workoutdata(w)
+        if data == 0:
+            message = "Error: No data file. Contact info@rowsandall.com if this problem persists"
+            url = reverse(workout_export_view,
+		          kwargs = {
+		              'message':str(message),
+		              'id':str(w.id),
+		          })
+
+            return HttpResponseRedirect(url)
+            
 	authorizationstring = str('Bearer ' + thetoken)
 	headers = {'Authorization': authorizationstring,
 		   'user-agent': 'sanderroosendaal',