admin.py 文件源码

def export(self, request, queryset):
        """
        Download selected photos as ZIP
        """
        zip_subdir = 'photos'
        zip_filename = '{}.zip'.format(zip_subdir)
        zip_file = os.path.join(settings.MEDIA_ROOT, PHOTOLOGUE_DIR,
                                zip_filename)
        try:
            os.remove(zip_file)
        except OSError:
            pass

        with zipfile.ZipFile(zip_file, "a") as zf:
            for photo in queryset.all():
                path = photo.image.path
                if os.path.isfile(path):
                    fdir, fname = os.path.split(path)
                    zip_path = os.path.join(zip_subdir, fname)
                    zf.write(path, zip_path)

        link = 'Photos download link: <a href="{0}?v={1}">{0}</a>'.format(
            urllib.parse.urljoin(settings.MEDIA_URL,
                                 PHOTOLOGUE_DIR + '/' + zip_filename), time())
        messages.add_message(request, messages.INFO, mark_safe(link))