File Size Validator

[Reza Shakeri]

Hi

I had requested a file validator (#34700), but you said I couldn't add it to its core and I have a question that can I add file size validator?
This code has been tested

@deconstructible
class FileSizeValidator:
    """
    file size validator 
    """

    def __init__(
        self,
        max_upload_file_size: int = None,
    ):
        """
        :type max_upload_file_size: int
        :param max_upload_file_size: If you want the file size to be checked,
            the file size must be in bytes,
            example: file_size=1048576 (1MB), defaults to 0, optional
        :return: If everything is OK, it will return None, otherwise it will
            return a ValidationError.
        """
        if max_upload_file_size is None:
            raise ValueError("max_upload_file_size is None, You Must Be Fill max_upload_file_size ")

        self.max_upload_file_size = max_upload_file_size

    def __call__(self, value):
        current_file = value.file
        file_size = current_file.size
        if self.max_upload_file_size is not None and file_size > self.max_upload_file_size:
            raise ValidationError("file size not valid")

    def __eq__(self, other):
        return (
            isinstance(other, self.__class__)
            and self.max_upload_file_size == other.max_upload_file_size
        )

[Mariusz Felisiak]

I had requested a file validator (#34700), but you said I couldn't add it to its core and I have a question that can I add file size validator?
This code has been tested

For me, this is another (4th) duplicate of #34263. You've already mentioned the size validator there. Please write to the DevelopersMailingList if you want other opinions, and ​follow the triaging guidelines with regards to wontfix tickets. Don't create more duplicates of the same ticket. I'll close all of them immediately.