Class SplitDateTimeField

django/forms/fields.py:1242–1283

class SplitDateTimeField(MultiValueField):
    widget = SplitDateTimeWidget
    hidden_widget = SplitHiddenDateTimeWidget
    default_error_messages = {
        "invalid_date": _("Enter a valid date."),
        "invalid_time": _("Enter a valid time."),
    }

    def __init__(self, *, input_date_formats=None, input_time_formats=None, **kwargs):
        errors = self.default_error_messages.copy()
        if "error_messages" in kwargs:
            errors.update(kwargs["error_messages"])
        localize = kwargs.get("localize", False)
        fields = (
            DateField(
                input_formats=input_date_formats,
                error_messages={"invalid": errors["invalid_date"]},
                localize=localize,
            ),
            TimeField(
                input_formats=input_time_formats,
                error_messages={"invalid": errors["invalid_time"]},
                localize=localize,
            ),
        )
        super().__init__(fields, **kwargs)

    def compress(self, data_list):
        if data_list:
            # Raise a validation error if time or date is empty
            # (possible if SplitDateTimeField has required=False).
            if data_list[0] in self.empty_values:
                raise ValidationError(
                    self.error_messages["invalid_date"], code="invalid_date"
                )
            if data_list[1] in self.empty_values:
                raise ValidationError(
                    self.error_messages["invalid_time"], code="invalid_time"
                )
            result = datetime.datetime.combine(*data_list)
            return from_current_timezone(result)
        return None


class GenericIPAddressField(CharField):