Merge pull request #445 in RMS/api-main-service from gladys-dev2 to RMSv2

* commit '5542e353':
  update delegation fix

app/applicationlayer/management/delegation/views.py

@@ -124,12 +124,12 @@ class DelegationViewSet(viewsets.ModelViewSet):
         old_instance = model_to_dict(instance)
 
         # restrictions
-        if not (new_instance['name'].lower() == 'head of department' or
-                new_instance['name'].lower() == 'sd/od' or
-                new_instance['name'].lower() == 'change control board' or
-                new_instance['name'].lower() == 'approver' or
-                new_instance['name'].lower() == 'vendor/implementor' or
-                new_instance['name'].lower() == 'requestor'):
+        if not (old_instance['name'].lower() == 'head of department' or
+                old_instance['name'].lower() == 'sd/od' or
+                old_instance['name'].lower() == 'change control board' or
+                old_instance['name'].lower() == 'approver' or
+                old_instance['name'].lower() == 'vendor/implementor' or
+                old_instance['name'].lower() == 'requestor'):
 
             self.perform_update(serializer)
             new_instance = serializer.data