Shared Link Edit Dto

@field_validator("expires_at", mode="before")
def expires_at_validate_regular_expression(cls, value):
    """Validates the regular expression"""
    if value is None:
        return value

    if isinstance(value, str) and not re.match(
        r"^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$",
        value,
    ):
        raise ValueError(
            r"must validate the regular expression /^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$/"
        )
    return value

@classmethod
def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
    """Create an instance of SharedLinkEditDto from a dict"""
    if obj is None:
        return None

    if not isinstance(obj, dict):
        return cls.model_validate(obj)

    _obj = cls.model_validate(
        {
            "allowDownload": obj.get("allowDownload"),
            "allowUpload": obj.get("allowUpload"),
            "description": obj.get("description"),
            "expiresAt": obj.get("expiresAt"),
            "password": obj.get("password"),
            "showMetadata": obj.get("showMetadata"),
            "slug": obj.get("slug"),
        }
    )
    return _obj

@classmethod
def from_json(cls, json_str: str) -> Optional[Self]:
    """Create an instance of SharedLinkEditDto from a JSON string"""
    return cls.from_dict(json.loads(json_str))

def to_dict(self) -> Dict[str, Any]:
    """Return the dictionary representation of the model using alias.

    This has the following differences from calling pydantic's
    `self.model_dump(by_alias=True)`:

    * `None` is only added to the output dict for nullable fields that
      were set at model initialization. Other fields with value `None`
      are ignored.
    """
    excluded_fields: Set[str] = set([])

    _dict = self.model_dump(
        by_alias=True,
        exclude=excluded_fields,
        exclude_none=True,
    )
    # set to None if description (nullable) is None
    # and model_fields_set contains the field
    if self.description is None and "description" in self.model_fields_set:
        _dict["description"] = None

    # set to None if expires_at (nullable) is None
    # and model_fields_set contains the field
    if self.expires_at is None and "expires_at" in self.model_fields_set:
        _dict["expiresAt"] = None

    # set to None if password (nullable) is None
    # and model_fields_set contains the field
    if self.password is None and "password" in self.model_fields_set:
        _dict["password"] = None

    # set to None if slug (nullable) is None
    # and model_fields_set contains the field
    if self.slug is None and "slug" in self.model_fields_set:
        _dict["slug"] = None

    return _dict

def to_json(self) -> str:
    """Returns the JSON representation of the model using alias"""
    return json.dumps(to_jsonable_python(self.to_dict()))

def to_str(self) -> str:
    """Returns the string representation of the model using alias"""
    return pprint.pformat(self.model_dump(by_alias=True))