将数据呈现到模板并使用HttpResponseRedirect

时间:2014-01-16 06:21:50

标签: django

我有这个表单来收集用户的数据。输入数据后,我使用HttpResponseRedirect 保护免受刷新。问题是因为我没有为这个应用程序使用数据库, 我无法弄清楚如何呈现用户输入的数据。

目前我需要呈现的数据存储在cd中。那么我怎样才能在成功之后重定向用户 数据输入并将数据传递到另一个视图,然后呈现它?我可以将它传递给另一个类视图,但渲染它是问题, 因为数据是由MathsConfig传递的,而不是通过网址传递的。

谢谢,对不起,我是Django的新手。

下面的代码

views.py

class MathsConfig(View):
    form_class = MathsForm
    initial={'operation': "Addition",
                     'rows': "",

                     "between1": "1 - 99",
                     "between2": "1 - 99",
                     "between3": None,
                     "between4": None,
                     "between5": None,

                     "questions": 20,
            }
    template_name = 'maths/maths-config.html'

    def get(self, request, *args, **kwargs):
        form = self.form_class(initial=self.initial)
        return render(request, self.template_name, {'form': form})

    def post(self, request, *args, **kwargs):
        form = self.form_class(request.POST)
        if form.is_valid():
            cd = form.cleaned_data

            return HttpResponseRedirect(reverse('maths:maths_success'))
        return render(request, self.template_name, {'form': form})


class MathsQuestions(object):

    def __init__(self):
        # want to pass cd varible here and then render it.

class MathsSuccess(TemplateView):
    template_name = "maths/maths-success.html"

urls.py

urlpatterns = patterns('',
    url(r'^config/$', views.MathsConfig.as_view(), name='maths_config'),
    url(r'^success/$', views.MathsSuccess.as_view(), name='maths_success'),
    url(r'^$', views.MathsQuestions(), name='maths_display'),
)

编辑:

class MathsQuestions(Object):

    def __init__(self, request):

        if 'entered_form_data' in request.session.keys():
            formdata = request.session['entered_form_data']
            del request.session['entered_form_data']

1 个答案:

答案 0 :(得分:2)

将其存储在会话中。

request.session['entered_form_data'] = data

在下一个视图中:

if 'entered_form_data' in request.session.keys():
    formdata = request.session['entered_form_data']
    del request.session['entered_form_data']

修改

def someview(request):
  template = 'something.html'

  form = SomeForm(request.POST) if request.method == 'POST' else SomeForm()

  if request.method == 'POST':
    if form.is_valid():
      data = form.get_cleaned_data()
      request.session['entered_form_data'] = data
      return HttpResponseRedirect('/someurl/')

  render_to_response(template, {'form':form}, context_instance=RequestContext(request))

def someurl_view(request):
  template = 'someurl.html'

  render_to_response(template, {'formdata':request.session.pop('entered_form_data', None)}, context_instance=RequestContext(request))

当然你需要创建一个自己从表单返回数据的函数。我的意思是我称之为form.get_cleaned_data()的函数。尽管我建议您返回字典,但不论您想要哪种方式。