def _make_trait(self, trait_model, event, session=None):
"""Make a new Trait from a Trait model.
Doesn't flush or add to session.
"""
trait_type = self._get_or_create_trait_type(trait_model.name,
trait_model.dtype,
session)
value_map = models.Trait._value_map
values = {'t_string': None, 't_float': None,
't_int': None, 't_datetime': None}
value = trait_model.value
values[value_map[trait_model.dtype]] = value
return models.Trait(trait_type, event, **values)
def test_get_none_value_traits(self):
model = sql_models.Trait(None, None, 5)
self.assertIsNone(model.get_value())
self.assertTrue(repr.repr(model))
