def assemble(cls, datum):
inst = cls()
rep = {}
links = datum.pop("_links", {})
for name in OrderedDict(cls.links).keys():
if name in links:
url = links[name]["href"]
model_cls = OrderedDict(cls.links)[name]["schema"]
id = model_cls.id_from_url(url)
rep[name] = model_cls(id=id)
else:
rep[name] = None
for name in OrderedDict(cls.properties).keys():
if name in datum:
rep[name] = datum[name]
else:
rep[name] = None
if "self" in links:
id = cls.id_from_url(links["self"]["href"])
else:
id = None
cls.validate(rep)
inst._remote_representation = rep
inst.id = id
return inst
