From 12b820c62bbc1f489d5858b44c508a62f455381c Mon Sep 17 00:00:00 2001
From: Sander Roosendaal <roosendaalsander@gmail.com>
Date: Fri, 25 Aug 2017 08:51:42 +0200
Subject: [PATCH] fixed nonetype error days form histo

---
 rowers/views.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rowers/views.py b/rowers/views.py
index 3cda06e0..beb6ecd0 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -2437,7 +2437,7 @@ def histo(request,theuser=0,
 	deltaform = DeltaDaysForm(request.POST)
 	if deltaform.is_valid():
 	    deltadays = deltaform.cleaned_data['deltadays']
-	    if deltadays != 0:
+	    if deltadays != 0 and deltadays != None:
 		enddate = timezone.now()
 		startdate = enddate-datetime.timedelta(days=deltadays)
 		if startdate > enddate: