# Application definition

INSTALLED_APPS = ('django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles','polls',
)

# coding=utf-8
from django.db import models# Create your models here.
# 问题
class Question(models.Model):question_text = models.CharField(max_length=200)pub_date = models.DateTimeField('date published')def __unicode__(self):return self.question_text# 选择
class Choice(models.Model):question = models.ForeignKey(Question)choice_text = models.CharField(max_length=200)votes = models.IntegerField(default=0)def __unicode__(self):return self.choice_text

D:\pydj\mysite>python manage.py makemigrations polls
Migrations for 'polls':0001_initial.py:- Create model Question- Create model Choice- Add field question to choiceD:\pydj\mysite>python manage.py syncdb
……
You have installed Django's auth system, and don't have any superusers defined.
Would you like to create one now? (yes/no): yes
Username (leave blank to use 'fnngj'):    用户名（默认当前系统用户名）
Email address: fnngj@126.com     邮箱地址
Password:     密码
Password (again):    重复密码
Superuser created successfully.

from django.contrib import admin
from .models import Question, Choice# Register your models here.
class ChoiceInline(admin.TabularInline):model = Choiceextra = 3class QuestionAdmin(admin.ModelAdmin):fieldsets = [(None,               {'fields': ['question_text']}),('Date information', {'fields': ['pub_date'], 'classes': ['collapse']}),]inlines = [ChoiceInline]list_display = ('question_text', 'pub_date')admin.site.register(Choice)
admin.site.register(Question, QuestionAdmin)

D:\pydj\mysite>python manage.py runserver
Performing system checks...System check identified no issues (0 silenced).
October 05, 2015 - 13:08:12
Django version 1.8.2, using settings 'mysite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.

# coding=utf-8
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse
from django.core.urlresolvers import reverse
from .models import Question, Choice# Create your views here.
# 首页展示所有问题
def index(request):# latest_question_list2 = Question.objects.order_by('-pub_data')[:2]latest_question_list = Question.objects.all()context = {'latest_question_list': latest_question_list}return render(request, 'polls/index.html', context)# 查看所有问题
def detail(request, question_id):question = get_object_or_404(Question, pk=question_id)return render(request, 'polls/detail.html', {'question': question})# 查看投票结果
def results(request, question_id):question = get_object_or_404(Question, pk=question_id)return render(request, 'polls/results.html', {'question': question})# 选择投票
def vote(request, question_id):p = get_object_or_404(Question, pk=question_id)try:selected_choice = p.choice_set.get(pk=request.POST['choice'])except (KeyError, Choice.DoesNotExist):# Redisplay the question voting form.return render(request, 'polls/detail.html', {'question': p,'error_message': "You didn't select a choice.",})else:selected_choice.votes += 1selected_choice.save()# Always return an HttpResponseRedirect after successfully dealing# with POST data. This prevents data from being posted twice if a# user hits the Back button.return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))

from django.conf.urls import url
from . import viewsurlpatterns = [# ex : /polls/url(r'^$', views.index, name='index'),# ex : /polls/5/url(r'^(?P<question_id>[0-9]+)/$', views.detail, name='detail'),# ex : /polls/5/results/url(r'^(?P<question_id>[0-9]+)/results/$', views.results, name='results'),# ex : /polls/5/voteurl(r'^(?P<question_id>[0-9]+)/vote/$', views.vote, name='vote'),
]

from django.conf.urls import include, url
from django.contrib import adminurlpatterns = [url(r'^polls/', include('polls.urls', namespace="polls")),url(r'^admin/', include(admin.site.urls)),
]

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

<h1>{{ question.question_text }}</h1>{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}<form action="{% url 'polls:vote' question.id %}" method="post">
{% csrf_token %}
{% for choice in question.choice_set.all %}<input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" /><label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />
{% endfor %}
<input type="submit" value="Vote" />
</form>

<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:detail' question.id %}">Vote again?</a>