dashboard: workaround for anonymous user

circle/dashboard/views.py

@@ -6,9 +6,14 @@ class IndexView(TemplateView):
     template_name = "dashboard/index.html"
 
     def get_context_data(self, **kwargs):
+        if self.request.user.is_authenticated():
+            user = self.request.user
+        else:
+            user = None
+
         context = super(IndexView, self).get_context_data(**kwargs)
         context.update({
-            'instances': Instance.objects.filter(owner=self.request.user),
+            'instances': Instance.objects.filter(owner=user),
         })
         return context