Using order_by with Relationship Properties

I see in the documentation that I can use obj.rel.order_by('prop_name') to order the relatives by the given node property. But what if I want to order by a relation property? Something like this:

class OrderedRel(StructuredRel):
    order = IntegerProperty(required=True)

class Item(StructuredNode):
    ...

class NodeSequence(StructuredNode):
    item = RelationTo('Item', 'ITEM', model=OrderedRel)

for item in node_sequence.item.order_rel_by('order'):
    ...

[Andy-Geng]

Then? Any solution?

[zacharymostowsky]

Any update on this? I was hoping to encode an “active” attribute in a relationship and use that to filter my queries. I will try the suggestions above.