使用Django通用视图从create_object创建的新对象中检索键

My code looks as such:

我的代码看起来像这样:

def add_cart(request):
    return create_object(request, form_class=CartForm,
    post_save_redirect=reverse('test.views.show_cart',
                               kwargs=dict(object_id='%(key)s')))
def add_