장고 view사용 ,html불러오기 및 연결의 사본

뷰=장고웹로직을 관리

[생성]

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결과

투표기능

polls/views.py수정

def detail(request, question_id):
    return HttpResponse("You're looking at question %s." % question_id)

def results(request, question_id):
    response = "You're looking at the results of question %s."
    return HttpResponse(response % question_id)

def vote(request, question_id):
    return HttpResponse("You're voting on question %s." % question_id)
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클라이언트 request→ response

polls/urls.py 수정

from django.urls import path

from . import views

urlpatterns = [
    # ex: /polls/
    path('', views.index, name='index'),
    # ex: /polls/5/
    path('<int:question_id>/', views.detail, name='detail'),
    # ex: /polls/5/results/
    path('<int:question_id>/results/', views.results, name='results'),
    # ex: /polls/5/vote/
    path('<int:question_id>/vote/', views.vote, name='vote'),
]
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polls/urls.py수정

from .models import Question


def index(request):
    latest_question_list = Question.objects.order_by('-pub_date')[:5]
    output = ', '.join([q.question_text for q in latest_question_list])
    return HttpResponse(output)
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question데이터에서 5개까지 가져오기

polls안에 templates에 해당 디렉토리 명으로 폴더 만들어서 관리 =장고멍청이

polls/templates/polls/index.html 경로 생성

{% if latest_question_list %}
    <ul>
    {% for question in latest_question_list %}
        <li><a href="/polls/{{ question.id }}/">{{ question.question_text }}</a></li>
    {% endfor %}
    </ul>
{% else %}
    <p>No polls are available.</p>
{% endif %}
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views.py업데이트

from django import template
from django.http import HttpResponse
from django.template import loader
from .models import Question

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 HttpResponse(template.render(context,request))
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httpresponse대신 render()함수 사용가능

return HttpResponse(template.render(context,request))
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return render(request, 'polls/index.html', context)
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404에러

detail함수 수정

from django.http import Http404

def detail(request, question_id):
    try:
        question = Question.objects.get(pk=question_id)
    except Question.DoesNotExist:
        raise Http404("Question does not exist")
    return render(request, 'polls/detail.html', {'question': question})
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get_object_or_404 import → try except없이 사용가능

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