Question

我正在通过查看Django教程创建一个网站。但不显示results.html中的消息。 results.html是

{% extends "polls/base.html" %}
{% load bootstrap3 %}
{% block contents %}

 <h1>{{ question.question_text }}</h1>
    <ul>
      {% for choice in question.choice_set.all %}
      <li>{{ choice.choice_text }} -- {{ choice.votes }} vote{{ choice.votes|pluralize }}</li>
      {% endfor %}
    </ul>
    <a href="{% url 'polls:polls_detail' question.id %}">Vote again?</a>

{% endblock contents %}

results.html继承base.html。

base.html是

{% load staticfiles %}
{% load bootstrap3 %}
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="icon" href="../../favicon.ico">

    <title>Starter Template for Bootstrap</title>

    <!-- Bootstrap core CSS -->
    <link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
    <style type="text/css">
body {
  padding-top: 50px;
}
    </style>
  </head>

  <body>
    <nav class="navbar navbar-inverse navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="{% url 'index' %}">Tutorial</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
          <ul class="nav navbar-nav">
            <li class="{% block nav_polls %}{% endblock %}"><a href="{% url 'polls:index' %}">polls</a></li>
            <li class=""><a href="{% url 'admin:index' %}">admin</a></li>
          </ul>
        </div><!--/.nav-collapse -->
      </div>
    </nav>

    <div class="container">
　　　{% if messages %}
     {% bootstrap_messages messages %}
     {% endif %}
     {% block contents %}{% endblock %}
    </div>
    <!-- Bootstrap core JavaScript
    ================================================== -->
    <!-- Placed at the end of the document so the pages load faster -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    <script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
    <script src="{% static 'js/bootstrap.min.js' %}"></script>
  </body>
</html>

我想展示这部分

<div class="container">
　{% if messages %}
 {% bootstrap_messages messages %}
 {% endif %}
 {% block contents %}{% endblock %}
</div>

在results.html中

。 base.html中的bootstrap显示在results.html中，所以我真的无法理解为什么没有显示消息.views.py是

from django.shortcuts import render
from django.urls import reverse_lazy
from .models import Question
from django.shortcuts import get_object_or_404,redirect
from .models import Choice
from .forms import MyForm
from .forms import VoteForm
from django.views.generic import FormView
from django.views.generic.detail import SingleObjectMixin
from django.shortcuts import resolve_url
from django.contrib import messages
from django.urls import reverse



# Create your views here.
def index(request):
    return render(request,'polls/index.html',{
        'questions': Question.objects.all(),
    })


def vote(request,pk):
    question = get_object_or_404(Question,pk=pk)
    try:
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
    except (KeyError,Choice.DoesNotExist):
        return render(request,'polls/detail.html',{
            'question':question,
            'error_message':"You didn't select a choice",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
    # return redirect(reverse('polls:poll_results'), pk=pk)
    # return redirect('results_url', pk=pk)
    return redirect('polls:polls_results', pk=pk)


def results(request,pk):
    obj = get_object_or_404(Question,pk=pk)
    return render(request,'polls/results.html',{
        'question':obj,
    })

class FormTest(FormView):
   form_class = MyForm
   template_name = 'polls/form.html'
   success_url = reverse_lazy('polls:index')
form_test = FormTest.as_view()

class Detail(SingleObjectMixin,FormView):
    model = Question
    form_class = VoteForm
    context_object_name = 'question'
    template_name = 'polls/detail.html'

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        return super().post(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        return super().post(request, *args, **kwargs)

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['question'] = self.object
        return kwargs

    def form_valid(self, form):
        form.vote()
        choice = form.cleaned_data['choice']
        messages.success(self.request,'"%s"に投票しました' % choice)
        return super().form_valid(form)

    def get_success_url(self):
        return resolve_url('polls:results',self.kwargs['pk'])

detail = Detail.as_view()

我想要显示

的消息

def form_valid(self, form):
            form.vote()
            choice = form.cleaned_data['choice']
            messages.success(self.request,'"%s"に投票しました' % choice)
            return super().form_valid(form)

我该如何解决这个问题？

我的app目录是

民意调查中的

urls.py是

from django.conf.urls import url
from django.views.generic import TemplateView
from . import views

app_name="polls"
urlpatterns = [
    url(r'(?P<pk>\d+)/$', views.detail, name='polls_detail'),
    url(r'(?P<pk>\d+)/vote$', views.vote, name='poll_vote'),
    url(r'(?P<pk>\d+)/results$', views.results, name='polls_results'),
    url(r'^$',views.index,name='index'),
    url(r'^form$', views.form_test),
]

我想在加载results.html时调用Detail类。

消息未显示

0 个答案: