def clean(self, *args, **kwargs):
    data = super(PrivateFileField, self).clean(*args, **kwargs)
    file = data.file
    if isinstance(file, UploadedFile):
        content_type = file.content_type
        if (self.content_types and (content_type not in self.content_types)):
            logger.debug('Rejected uploaded file type: %s', content_type)
            raise ValidationError(self.error_messages['invalid_file_type'])
        if (self.max_file_size and (file.size > self.max_file_size)):
            raise ValidationError(self.error_messages['file_too_large'].format(max_size=filesizeformat(self.max_file_size), size=filesizeformat(file.size)))
    return data
def clean(self, *args, **kwargs):
    data = super(PrivateFileField, self).clean(*args, **kwargs)
    file = data.file
    if isinstance(file, UploadedFile):
        content_type = file.content_type
        if (self.content_types and (content_type not in self.content_types)):
            logger.debug('Rejected uploaded file type: %s', content_type)
            raise ValidationError(self.error_messages['invalid_file_type'])
        if (self.max_file_size and (file.size > self.max_file_size)):
            raise ValidationError(self.error_messages['file_too_large'].format(max_size=filesizeformat(self.max_file_size), size=filesizeformat(file.size)))
    return data