From 3fc82a596c72ff14175999280ede616d4c7cf028 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Norman=20J=C3=A4ckel?= <openslides@normanjaeckel.de>
Date: Wed, 13 Jan 2016 15:04:47 +0100
Subject: [PATCH] Fixed server error in config update view. Fixed #1828.

---
 openslides/core/views.py             | 4 +++-
 tests/integration/core/test_views.py | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/openslides/core/views.py b/openslides/core/views.py
index 07a72cb74..218e318f6 100644
--- a/openslides/core/views.py
+++ b/openslides/core/views.py
@@ -475,7 +475,9 @@ class ConfigViewSet(ViewSet):
         Example: {"value": 42}
         """
         key = kwargs['pk']
-        value = request.data['value']
+        value = request.data.get('value')
+        if value is None:
+            raise ValidationError({'detail': 'Invalid input. Config value is missing.'})
 
         # Validate and change value.
         try:
diff --git a/tests/integration/core/test_views.py b/tests/integration/core/test_views.py
index 0791731fc..4aa88ed03 100644
--- a/tests/integration/core/test_views.py
+++ b/tests/integration/core/test_views.py
@@ -154,6 +154,14 @@ class ConfigViewSet(TestCase):
         self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
         self.assertEqual(response.data, {'detail': 'Invalid input.'})
 
+    def test_update_only_with_key(self):
+        self.client = APIClient()
+        self.client.login(username='admin', password='admin')
+        response = self.client.put(
+            reverse('config-detail', args=['test_var_Xeiizi7ooH8Thuk5aida']))
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.data, {'detail': 'Invalid input. Config value is missing.'})
+
 
 def validator_for_testing(value):
     """