def from_native(self, value):
if value in validators.EMPTY_VALUES:
return None
if isinstance(value, datetime.datetime):
if timezone and settings.USE_TZ and timezone.is_aware(value):
# Convert aware datetimes to the default time zone
# before casting them to dates (#17742).
default_timezone = timezone.get_default_timezone()
value = timezone.make_naive(value, default_timezone)
return value.date()
if isinstance(value, datetime.date):
return value
for format in self.input_formats:
if format.lower() == ISO_8601:
try:
parsed = parse_date(value)
except (ValueError, TypeError):
pass
else:
if parsed is not None:
return parsed
else:
try:
parsed = datetime.datetime.strptime(value, format)
except (ValueError, TypeError):
pass
else:
return parsed.date()
msg = self.error_messages['invalid'] % readable_date_formats(
self.input_formats)
raise ValidationError(msg)
def from_native(self, value):
if value in validators.EMPTY_VALUES:
return None
if isinstance(value, datetime.datetime):
if timezone and settings.USE_TZ and timezone.is_aware(value):
# Convert aware datetimes to the default time zone
# before casting them to dates (#17742).
default_timezone = timezone.get_default_timezone()
value = timezone.make_naive(value, default_timezone)
return value.date()
if isinstance(value, datetime.date):
return value
for format in self.input_formats:
if format.lower() == ISO_8601:
try:
parsed = parse_date(value)
except (ValueError, TypeError):
pass
else:
if parsed is not None:
return parsed
else:
try:
parsed = datetime.datetime.strptime(value, format)
except (ValueError, TypeError):
pass
else:
return parsed.date()
msg = self.error_messages['invalid'] % readable_date_formats(self.input_formats)
raise ValidationError(msg)
def default(self, o):
# For Date Time string spec, see ECMA 262
# http://ecma-international.org/ecma-262/5.1/#sec-15.9.1.15
if isinstance(o, Promise):
return force_text(o)
elif isinstance(o, datetime.datetime):
r = o.isoformat()
if o.microsecond:
r = r[:23] + r[26:]
if r.endswith('+00:00'):
r = r[:-6] + 'Z'
return r
elif isinstance(o, datetime.date):
return o.isoformat()
elif isinstance(o, datetime.time):
if timezone and timezone.is_aware(o):
raise ValueError("JSON can't represent timezone-aware times.")
r = o.isoformat()
if o.microsecond:
r = r[:12]
return r
elif isinstance(o, datetime.timedelta):
return str(o.total_seconds())
elif isinstance(o, decimal.Decimal):
return str(o)
elif hasattr(o, 'tolist'):
return o.tolist()
elif hasattr(o, '__iter__'):
return [i for i in o]
return super(JSONEncoder, self).default(o)
def default(self, o):
# A dictionary may have a date as it's key, explicitly handle this
if isinstance(o, dict):
result = {}
for key, value in o.iteritems():
result[self.default(key)] = self.default(value)
return result
# For Date Time string spec, see ECMA 262
# http://ecma-international.org/ecma-262/5.1/#sec-15.9.1.15
elif isinstance(o, Promise):
return force_text(o)
elif isinstance(o, (geometry.LineString, geometry.MultiLineString,
geometry.MultiPoint, geometry.MultiPolygon,
geometry.Point, geometry.Polygon)):
return o.__geo_interface__
elif isinstance(o, datetime.datetime):
r = o.isoformat()
if o.microsecond:
r = r[:23] + r[26:]
if r.endswith('+00:00'):
r = r[:-6] + 'Z'
return r
elif isinstance(o, datetime.date):
return o.isoformat()
elif isinstance(o, datetime.time):
if timezone and timezone.is_aware(o):
raise ValueError("JSON can't represent timezone-aware times.")
r = o.isoformat()
if o.microsecond:
r = r[:12]
return r
elif isinstance(o, datetime.timedelta):
return str(o.total_seconds())
elif isinstance(o, decimal.Decimal):
return str(o)
elif hasattr(o, 'tolist'):
return o.tolist()
elif hasattr(o, '__iter__'):
return [self.default(i) for i in o]
else:
return o
def from_native(self, value):
if value in validators.EMPTY_VALUES:
return None
if isinstance(value, datetime.datetime):
if timezone and settings.USE_TZ and timezone.is_aware(value):
# Convert aware datetimes to the default time zone
# before casting them to dates (#17742).
default_timezone = timezone.get_default_timezone()
value = timezone.make_naive(value, default_timezone)
return value.date()
if isinstance(value, datetime.date):
return value
try:
parsed = parse_date(value)
if parsed is not None:
return parsed
except ValueError:
msg = self.error_messages["invalid_date"] % value
raise ValidationError(msg)
msg = self.error_messages["invalid"] % value
raise ValidationError(msg)
def from_native(self, value):
if value in validators.EMPTY_VALUES:
return None
if isinstance(value, datetime.datetime):
if timezone and settings.USE_TZ and timezone.is_aware(value):
# Convert aware datetimes to the default time zone
# before casting them to dates (#17742).
default_timezone = timezone.get_default_timezone()
value = timezone.make_naive(value, default_timezone)
return value.date()
if isinstance(value, datetime.date):
return value
try:
parsed = parse_date(value)
if parsed is not None:
return parsed
except ValueError:
msg = self.error_messages['invalid_date'] % value
raise ValidationError(msg)
msg = self.error_messages['invalid'] % value
raise ValidationError(msg)