fix alerts

rowers/alerts.py

@@ -3,7 +3,7 @@ from rowers.teams import coach_getcoachees
 from rowers.dataprep import getsmallrowdata_db, getrowdata_db
 import datetime
 import numpy as np
-
+import math
 
 def create_alert(manager, rower, measured, period=7, emailalert=True,
                  reststrokes=False, workouttype='water', boattype='1x',
@@ -195,7 +195,7 @@ def alert_get_stats(alert, nperiod=0):  # pragma: no cover
     median = df[alert.measured.metric].median()
     std = df[alert.measured.metric].std()
 
-    return {
+    data = {
         'workouts': workouts.count(),
         'startdate': startdate,
         'enddate': enddate,
@@ -208,6 +208,18 @@ def alert_get_stats(alert, nperiod=0):  # pragma: no cover
         'standard_dev': std,
     }
 
+    data_clean = {}
+
+    for k in data:
+        data_clean[k] = data[k]
+        try:
+            if math.isnan(data[k]):
+                data_clean[k] = 0
+        except TypeError:
+            pass
+
+    return data_clean
+
 # run alert report
 
 # check alert permission