def test_simple_parse_timedelta(self):
self.assertStrictEqual(relativedelta(microseconds=300000.0), parse_relativedelta(timedelta(seconds=0.3)))
self.assertStrictEqual(relativedelta(
seconds=2, microseconds=300000.0), parse_relativedelta(timedelta(seconds=2.3))
)
self.assertStrictEqual(
relativedelta(days=11, hours=18, minutes=11, seconds=50, microseconds=100010),
parse_relativedelta(timedelta(weeks=1, days=4.5, hours=5, minutes=70.5, seconds=80.100005, microseconds=5))
)
def get_db_prep_save(self, value, connection):
if value is None:
return None
if connection.vendor == 'postgresql':
return super().get_db_prep_save(value, connection)
else:
if isinstance(value, str): # we need to convert it to the non-postgres format
return relativedelta_as_csv(parse_relativedelta(value))
return relativedelta_as_csv(value)
def __get__(self, obj, objtype=None):
if obj is None:
return None
value = obj.__dict__.get(self.field.name)
if value is None:
return None
try:
return parse_relativedelta(value)
except ValueError as e:
raise ValidationError({self.field.name: e})
def to_python(self, value):
if value is None:
return value
try:
return parse_relativedelta(value)
except (ValueError, TypeError):
raise ValidationError(
self.error_messages['invalid'],
code='invalid',
params={'value': value},
)
def test_csv_conversions(self):
self.assertEqual(
relativedelta_as_csv(relativedelta(years=1925, months=9, days=-4,
hours=-12, minutes=27, seconds=54,
microseconds=-123456)),
'01925/009/-04 -12:027:054.-123456')
self.assertEqual(
parse_relativedelta('01925/009/-04 -12:027:054.-123456'),
relativedelta(years=1925, months=9, days=-4,
hours=-12, minutes=27, seconds=54,
microseconds=-123456)
)
self.assertEqual(
relativedelta_as_csv(relativedelta(years=-1925, months=9, days=-4,
hours=-12, minutes=27, seconds=-54,
microseconds=123456)),
'-1925/009/-04 -12:027:-54.0123456')
self.assertEqual(
parse_relativedelta('-1925/009/-04 -12:027:-54.0123456'),
relativedelta(years=-1925, months=9, days=-4,
hours=-12, minutes=27, seconds=-54,
microseconds=123456)
)
def from_db_value(self, value, expression, connection, context=None):
if value is not None:
return parse_relativedelta(value)
def test_parse_iso8601csv(self):
"""Test parsing the internal comma-separated-value representation"""
self.assertStrictEqual(
relativedelta(years=1925, months=9, days=-14, hours=-12, minutes=27, seconds=54, microseconds=-123456),
parse_relativedelta('01925/009/-14 -12:027:054.-123456')
)
def test_normalize_timedelta(self):
self.assertStrictEqual(
relativedelta(seconds=21, microseconds=600000.0),
parse_relativedelta(timedelta(seconds=2.3, microseconds=19.3e6))
)
def clean(self, value):
try:
return parse_relativedelta(value)
except Exception:
raise ValidationError('Not a valid (extended) ISO8601 interval specification', code='format')
def to_python(self, value):
return parse_relativedelta(value)
