python - [Python:Django]属性错误
问题描述
我正在关注 django 教程,但我被困在第 4 部分。当我尝试运行服务器时,我收到错误“AttributeError:模块'polls.views'没有属性'ResultsView'”
我的代码:polls/views.py
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse, HttpResponseRedirect
from .models import Question, Choice
from django.template import loader
from django.urls import reverse
def index(request):
latest_question_list = Question.objects.order_by('-pub_date')[:5]
template = loader.get_template('polls/index.html')
context = {
'latest_question_list': latest_question_list
}
return render(request, 'polls/index.html', context)
def detail(request, question_id):
question =get_object_or_404(Question, pk=question_id)
return render(request, "polls/detail.html", {'question':question})
def results(request, question_id):
response = "You are looking at results of question %s"
return HttpResponse(response % question_id)
#render(request, 'polls/results', {"question_id": question_id})
#HttpResponse(response % question_id)
def vote(request, question_id):
question = get_object_or_404(Question, pk=question_id)
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 HttpResponseRedirect(reverse('polls:results', args=[question.id]))
# Create your views here.
民意调查/urls.py
from django.urls import path
from . import views
app_name = 'polls'
urlpatterns=[
path("", views.index, name="index"),
path("<int:question_id>/", views.detail, name="detail"),
path("<int:pk>/results/", views.ResultsView.as_view(), name="results"),
path("<int:question_id>/vote/", views.vote, name="vote"),
]
民意调查/结果.html
<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/>
</ul>
<a href = '{% polls:detail question.id %}'>Vote again?</a>
对不起,如果我犯了任何错误。这是我在这里的第一个问题。
解决方案
你应该把views.results
而不是views.ResultView.as_viewset()
. 您编写了一个函数,而不是视图集。
urlpatterns=[
path("", views.index, name="index"),
path("<int:question_id>/", views.detail, name="detail"),
path("<int:question_id>/results/", views.results, name="results"),
path("<int:question_id>/vote/", views.vote, name="vote"),
]
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