def test_io_success(self):
""" Tests that a basic usage works as expected """
k1 = uuid4()
k2 = uuid4()
now = datetime.now()
then = now + timedelta(days=1)
m1 = TestMapModel.create(
self.conn,
int_map={
1: k1,
2: k2
},
text_map={
'now': now,
'then': then
},
)
m2 = TestMapModel.get(self.conn, partition=m1.partition)
self.assertTrue(isinstance(m2.int_map, dict))
self.assertTrue(isinstance(m2.text_map, dict))
self.assertTrue(1 in m2.int_map)
self.assertTrue(2 in m2.int_map)
self.assertEqual(m2.int_map[1], k1)
self.assertEqual(m2.int_map[2], k2)
self.assertAlmostEqual(get_total_seconds(now - m2.text_map['now']), 0,
2)
self.assertAlmostEqual(get_total_seconds(then - m2.text_map['then']),
0, 2)
def to_database(self, value):
value = super(DateTime, self).to_database(value)
if value is None:
return
if not isinstance(value, datetime):
if isinstance(value, date):
value = datetime(value.year, value.month, value.day)
else:
raise ValidationError(
"{0} '{1}' is not a datetime object".format(
self.column_name, value))
epoch = datetime(1970, 1, 1, tzinfo=value.tzinfo)
offset = get_total_seconds(
epoch.tzinfo.utcoffset(epoch)) if epoch.tzinfo else 0
return int((get_total_seconds(value - epoch) - offset) * 1000)
def test_datetime_precision(self):
""" Tests that millisecond resolution is preserved when saving datetime objects """
now = datetime.now()
pk = 1000
obj = DateTimeQueryTestModel.create(self.conn, user=pk, day=now, data="energy cheese")
load = DateTimeQueryTestModel.get(self.conn, user=pk)
self.assertAlmostEqual(get_total_seconds(now - load.day), 0, 2)
obj.delete(self.conn)
