Django 'str' 对象没有属性 'get'

Question

我试图在完成表单后将用户重定向到另一个页面而不保存。但是，当我使用 reverse 函数时，出现错误：'str' object has no attribute 'get'

在下面基于类的视图中， self.object.thing_id 打印它应该打印的数据。

基于类的视图：

class ThingUpdateView(LoginRequiredMixin, UpdateView):
    def form_valid(self, form):
        if self.object.status != 'initiated':
            print(self.object.thing_id)
            return reverse('thing:detail', kwargs={'thing_id': str(self.object.thing_id) })
        return super().form_valid(form)

即使 reverse('thing:list') 也会给出相同的错误

App Things 的 urls.py

url(r'^$', ThingListView.as_view(), name='list'),
url(r'^(?P<thing_id>[0-9A-Za-z]+)/$', ThingDetailView.as_view(), name='detail'),
url(r'^update/(?P<thing_id>[0-9A-Za-z]+)/$', ThingUpdateView.as_view(), name='update'),

当用户点击 html 页面上的提交按钮时会发生此错误。它启动表单，然后路由到 form_valid 部分。self.objectstatus != 'initiated' 所以它试图做相反的返回。

这是堆栈跟踪：

Traceback:

File "C:\Users\Starlord\Dev\ecommerce\lib\site-packages\django\core\handlers\exception.py" in inner
  41.             response = get_response(request)

File "C:\Users\Starlord\Dev\ecommerce\lib\site-packages\django\utils\deprecation.py" in __call__
  142.             response = self.process_response(request, response)

File "C:\Users\Starlord\Dev\ecommerce\lib\site-packages\django\middleware\clickjacking.py" in process_response
  32.         if response.get('X-Frame-Options') is not None:

Exception Type: AttributeError at /things/update/vd2dqvw3nw/
Exception Value: 'str' object has no attribute 'get'

Answer 1

使用HttpResponseRedirect替代

from django.http import HttpResponseRedirect

return HttpResponseRedirect(reverse('thing:detail', kwargs={'thing_id':self.object.thing_id}))