2019独角兽企业重金招聘Python工程师标准>>> 
增加页面和功能
- Question “index” page – displays the latest few questions.
- Question “detail” page – displays a question text, with no results but with a form to vote.
- Question “results” page – displays results for a particular question.
- Vote action – handles voting for a particular choice in a particular question.
1，编写views
from django.shortcuts import render
from django.shortcuts import get_object_or_404, render
from .models import Question
from django.http import HttpResponse
# Create your views here.
def index(request):
latest_question_list= Question.objects.order_by('-pub_date')[:5]
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 vote(request, question_id):
return HttpResponse("You're voting on question %s." % question_id)
def results(request, question_id):
response = "You're looking at the results of question %s."
return HttpResponse(response % question_id)
2,编写url
from django.urls import path
from . import views
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'),
]
创建文件在 mysite/polls/templates/polls/下创建index.html,detail.html
{% if latest_question_list %}
<ul>
{% for question in latest_question_list %}
<li><a href="{% url 'detail' question.id %}">{{question.question_text}}</a></li>
{% endfor %}
</ul>
{% else %}
<p>no polls </p>
{% endif %}
detail.html
<h1>{{question.question_text }}</h1>
<ul>
{% for choice in question.choice_set.all %}
<li>{{ choice.choice_text }}</li>
{% endfor %}
</ul>