def create(self, request, *args, **kwargs):
try:
return super().create(request, *args, **kwargs)
except UploadDuplicateError as e:
dup = Image.objects.get(pk=e.instance.hash)
# this usage of parse_duration is safe, because we already
# validated the data (exception is thrown by the Model class, so
# the validator passed).
if 'expiration' in request.data:
dup.expiration = parse_duration(request.data['expiration'])
dup.save()
serializer = self.get_serializer(dup)
headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=status.HTTP_201_CREATED,
headers=headers)
python类parse_duration()的实例源码
def to_python(self, value):
if value is None:
return value
if isinstance(value, datetime.timedelta):
return value
try:
parsed = parse_duration(value)
except ValueError:
pass
else:
if parsed is not None:
return parsed
raise exceptions.ValidationError(
self.error_messages['invalid'],
code='invalid',
params={'value': value},
)
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def convert_durationfield_value(self, value, expression, connection, context):
if value is not None:
value = str(decimal.Decimal(value) / decimal.Decimal(1000000))
value = parse_duration(value)
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def _sqlite_format_dtdelta(conn, lhs, rhs):
"""
LHS and RHS can be either:
- An integer number of microseconds
- A string representing a timedelta object
- A string representing a datetime
"""
try:
if isinstance(lhs, six.integer_types):
lhs = str(decimal.Decimal(lhs) / decimal.Decimal(1000000))
real_lhs = parse_duration(lhs)
if real_lhs is None:
real_lhs = backend_utils.typecast_timestamp(lhs)
if isinstance(rhs, six.integer_types):
rhs = str(decimal.Decimal(rhs) / decimal.Decimal(1000000))
real_rhs = parse_duration(rhs)
if real_rhs is None:
real_rhs = backend_utils.typecast_timestamp(rhs)
if conn.strip() == '+':
out = real_lhs + real_rhs
else:
out = real_lhs - real_rhs
except (ValueError, TypeError):
return None
# typecast_timestamp returns a date or a datetime without timezone.
# It will be formatted as "%Y-%m-%d" or "%Y-%m-%d %H:%M:%S[.%f]"
return str(out)
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def _sqlite_format_dtdelta(conn, lhs, rhs):
"""
LHS and RHS can be either:
- An integer number of microseconds
- A string representing a timedelta object
- A string representing a datetime
"""
try:
if isinstance(lhs, six.integer_types):
lhs = str(decimal.Decimal(lhs) / decimal.Decimal(1000000))
real_lhs = parse_duration(lhs)
if real_lhs is None:
real_lhs = backend_utils.typecast_timestamp(lhs)
if isinstance(rhs, six.integer_types):
rhs = str(decimal.Decimal(rhs) / decimal.Decimal(1000000))
real_rhs = parse_duration(rhs)
if real_rhs is None:
real_rhs = backend_utils.typecast_timestamp(rhs)
if conn.strip() == '+':
out = real_lhs + real_rhs
else:
out = real_lhs - real_rhs
except (ValueError, TypeError):
return None
# typecast_timestamp returns a date or a datetime without timezone.
# It will be formatted as "%Y-%m-%d" or "%Y-%m-%d %H:%M:%S[.%f]"
return str(out)
def convert_durationfield_value(self, value, expression, connection, context):
if value is not None:
value = str(decimal.Decimal(value) / decimal.Decimal(1000000))
value = parse_duration(value)
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def convert_durationfield_value(self, value, expression, connection, context):
if value is not None:
value = str(decimal.Decimal(value) / decimal.Decimal(1000000))
value = parse_duration(value)
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def convert_durationfield_value(self, value, expression, connection, context):
if value is not None:
value = str(decimal.Decimal(value) / decimal.Decimal(1000000))
value = parse_duration(value)
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(value)
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def convert_durationfield_value(self, value, expression, connection, context):
if value is not None:
value = str(decimal.Decimal(value) / decimal.Decimal(1000000))
value = parse_duration(value)
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, datetime.timedelta):
return value
value = parse_duration(force_text(value))
if value is None:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
