models.py 文件源码

def get_upload_to(self, filename):
        folder_name = 'original_videos'
        filename = self.file.field.storage.get_valid_name(filename)
        max_length = self._meta.get_field('file').max_length

        # Truncate filename so it fits in the 100 character limit
        # https://code.djangoproject.com/ticket/9893
        file_path = os.path.join(folder_name, filename)
        too_long = len(file_path) - max_length
        if too_long > 0:
            head, ext = os.path.splitext(filename)
            if too_long > len(head) + 1:
                raise SuspiciousFileOperation('File name can not be shortened to a safe length')
            filename = head[:-too_long] + ext
            file_path = os.path.join(folder_name, filename)
        return os.path.join(folder_name, filename)