signals.py 文件源码

def file_storage_changed(**kwargs):
    file_storage_settings = {
        'DEFAULT_FILE_STORAGE',
        'FILE_UPLOAD_DIRECTORY_PERMISSIONS',
        'FILE_UPLOAD_PERMISSIONS',
        'MEDIA_ROOT',
        'MEDIA_URL',
    }

    if kwargs['setting'] in file_storage_settings:
        from django.core.files.storage import default_storage
        default_storage._wrapped = empty