fields.py 文件源码

def __init__(self, upload_to='', storage=None, accepted_types=None,
                 *args, **kwargs):
        self.storage = storage or default_storage
        self.upload_to = upload_to
        self.accepted_types = accepted_types

        kwargs['max_length'] = kwargs.get('max_length', 200)
        super(S3FileField, self).__init__(*args, **kwargs)