在POST後重定向並傳遞數據時重定向URL的持久性

Question

成功提交表單後，我重定向到「成功」頁面，顯示「感謝」消息以及有關提交的一些信息。爲此，我將POST數據放入會話中，重定向到適當的URL，然後使用會話數據呈現模板。

但是，這意味着如果有人手動導航到'成功'網址，他們將看到從以前的表單提交「成功」消息。我如何防止這種情況發生？該表格在/register/處理。成功的提交被重定向到/register/success。我想要在瀏覽器中輸入/register/success/的人（未提交表單）查看錯誤頁面或其他內容。這怎麼處理？

urls.py

url(r'^register/$', views.register, name='register'), 
url(r'^register/success/$', views.registration_success, name='registration_success'), 

views.py

def register(request): 
    if request.method == 'POST': 
     if the_form.is_valid(): 
      my_id = the_form.cleaned_data['myid'] 
      email_addr = the_form.cleanedJ_data['emailaddr'] 
      request.session['registration'] = {'my_id': my_id, 'email_addr': email_addr } 

      return HttpResponseRedirect(reverse('polls:registration_success')) 


def registration_success(request): 
    template = loader.get_template('polls/submitted.html') 
    context = RequestContext(request, request.session.get('registration')) 
    return HttpResponse(template.render(context)) 

Answer 1

您可以使用Django的會話來實現that.Here是使用你的代碼的例子。

def register(request): 
    if request.method == 'POST': 
     if the_form.is_valid(): 
      my_id = the_form.cleaned_data['myid'] 
      email_addr = the_form.cleanedJ_data['emailaddr'] 
      request.session['registration'] = {'my_id': my_id, 'email_addr': email_addr } 
      request.session['form-submitted'] = True 
      return HttpResponseRedirect(reverse('polls:registration_success')) 


def registration_success(request): 
    if not request.session.get('form-submitted', False): 
     # handle the case where there is no form submitted 
     return HttpResponseRedirect(reverse('polls:register')) 
    template = loader.get_template('polls/submitted.html') 
    context = RequestContext(request, request.session.get('registration')) 
    return HttpResponse(template.render(context))