redirect default view depending on user login

ordr2/views/pages.py

@@ -1,13 +1,24 @@
-from pyramid.response import Response
+from pyramid.httpexceptions import HTTPFound
 from pyramid.view import view_config
 
 
 @view_config(
     context='ordr2.resources.Root',
+    permission='view'
+    )
+def welcome(context, request):
+    next = 'orders' if request.user else 'about'
+    redirect_to = request.resource_url(context, next)
+    return HTTPFound(redirect_to)
+
+
+@view_config(
+    context='ordr2.resources.Root',
+    name='about',
     permission='view',
     renderer='ordr2:templates/pages/welcome.jinja2'
     )
-def welcome(context, request):
+def about(context, request):
     return {}