def _set_record(self):
ph = PolygonHelper(self.polygon)
self.polygon = ph.to_str()
self.center = ph.get_center_str()
th = TypeHelper(self.types)
self.types = th.to_str()
self.tids = th.get_tids_str()
self.rid = ph.get_hash() + th.get_hash()
