From: Philipp Klaus <klaus@physik.uni-frankfurt.de>
Date: Mon, 28 Aug 2017 11:44:14 +0000 (+0200)
Subject: DASH: /api/values.json 'value' and 'num_value' = None if invalid
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=133fc27;p=mvd_epics.git

DASH: /api/values.json 'value' and 'num_value' = None if invalid
---

diff --git a/python_suite/dashboard/dashboard.py b/python_suite/dashboard/dashboard.py
index f7fa056..548fca9 100755
--- a/python_suite/dashboard/dashboard.py
+++ b/python_suite/dashboard/dashboard.py
@@ -93,6 +93,8 @@ def cb_value_update(**kwargs):
             pv['value'] = kwargs['value']
         pv['num_value'] = kwargs['value']
         if kwargs['severity'] == epics.INVALID_ALARM:
+            # avoid NaN (cannot be encoded in JSON) and outdated values if invalid
+            pv['value'] = None
             pv['num_value'] = None
         register_pv_value_in_history(kwargs['pvname'], kwargs['timestamp'], pv['num_value'])
         pv['precision'] = kwargs['precision']