def test_parse_datetime(self):
# Valid inputs
self.assertEqual(parse_datetime('2012-04-23T09:15:00'),
datetime(2012, 4, 23, 9, 15))
self.assertEqual(parse_datetime('2012-4-9 4:8:16'),
datetime(2012, 4, 9, 4, 8, 16))
self.assertEqual(parse_datetime('2012-04-23T09:15:00Z'),
datetime(2012, 4, 23, 9, 15, 0, 0, FixedOffset(0)))
self.assertEqual(parse_datetime('2012-4-9 4:8:16-0320'),
datetime(2012, 4, 9, 4, 8, 16, 0, FixedOffset(-200)))
self.assertEqual(parse_datetime('2012-04-23T10:20:30.400+02:30'),
datetime(2012, 4, 23, 10, 20, 30, 400000, FixedOffset(150)))
# Invalid inputs
self.assertEqual(parse_datetime('20120423091500'), None)
self.assertRaises(ValueError, parse_datetime, '2012-04-56T09:15:90')
def to_python(self, value):
if value is None:
return value
if isinstance(value, datetime.datetime):
return value
if isinstance(value, datetime.date):
value = datetime.datetime(value.year, value.month, value.day)
if settings.USE_TZ:
# For backwards compatibility, interpret naive datetimes in
# local time. This won't work during DST change, but we can't
# do much about it, so we let the exceptions percolate up the
# call stack.
warnings.warn("DateTimeField received a naive datetime (%s)"
" while time zone support is active." % value,
RuntimeWarning)
default_timezone = timezone.get_default_timezone()
value = timezone.make_aware(value, default_timezone)
return value
try:
parsed = parse_datetime(value)
if parsed is not None:
return parsed
except ValueError:
msg = self.error_messages['invalid_datetime'] % value
raise exceptions.ValidationError(msg)
try:
parsed = parse_date(value)
if parsed is not None:
return datetime.datetime(parsed.year, parsed.month, parsed.day)
except ValueError:
msg = self.error_messages['invalid_date'] % value
raise exceptions.ValidationError(msg)
msg = self.error_messages['invalid'] % value
raise exceptions.ValidationError(msg)
def parse_datetime_with_timezone_support(value):
dt = parse_datetime(value)
# Confirm that dt is naive before overwriting its tzinfo.
if dt is not None and settings.USE_TZ and timezone.is_naive(dt):
dt = dt.replace(tzinfo=timezone.utc)
return dt
