dashboard: default ordering of interfaces by managed attr

circle/dashboard/views.py

@@ -215,7 +215,7 @@ class VmDetailView(CheckedDetailView):
 
         context['vlans'] = Vlan.get_objects_with_level(
             'user', self.request.user
-        ).exclude(
+        ).exclude(  # exclude already added interfaces
             pk__in=Interface.objects.filter(
                 instance=self.get_object()).values_list("vlan", flat=True)
         ).all()

circle/vm/models/network.py

@@ -53,6 +53,7 @@ class Interface(Model):
     class Meta:
         app_label = 'vm'
         db_table = 'vm_interface'
+        ordering = ("-vlan__managed", )
 
     def __unicode__(self):
         return 'cloud-' + str(self.instance.id) + '-' + str(self.vlan.vid)