django 예제 따라하기 (투표 앱 개발) 요약 Part 3,4

요약이라기 보다는 사이트에서 차례대로 읽으면서 작성하다보면 페이지가 완성된다.
실제로 구현된 소스를 올려 보겠다.

1,2장에서 프로젝트와 앱을 생성하면 기본적으로 파일들이 만들어지기 때문에
수정된 소스만 업로드 한다.

[mysite\mysite\settings.py]
polls만 추가

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

[mysite\mysite\urls.py]

from django.conf.urls import patterns, include, url

from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    # Examples:
    #url(r'^$', 'mysite.views.home', name='home'),
    #url(r'^blog/', include('blog.urls'),name='blog'),
    url(r'^polls/', include('polls.urls',namespace="polls")),
    url(r'^admin/', include(admin.site.urls)),
)

[mysite\polls\admin.py]

from django.contrib import admin
from polls.models import Choice,Poll
# Register your models here.

class ChoiceInline(admin.TabularInline): #admin.StackedInline
    model=Choice
    extra=3
 
class PollAdmin(admin.ModelAdmin):
    fieldsets=[
        (None,{'fields':['question']}),
        ('Date information',{'fields':['pub_date'],'classes':['collapse']}),
        ]
    inlines=[ChoiceInline]
    list_display = ('question', 'pub_date', 'was_published_recently')
    list_filter = ['pub_date']
    search_fields = ['question']
 
admin.site.register(Poll,PollAdmin)
##admin.site.register(Choice)

[mysite\polls\models.py]

from django.db import models

import datetime

from django.utils import timezone

# Create your models here.

class Poll(models.Model):

    question = models.CharField(max_length=200)

    pub_date = models.DateTimeField('date published')

    def __unicode__(self):

        return self.question

    

    def was_published_recently(self):

        return self.pub_date>=timezone.now()-datetime.timedelta(days=1)

    was_published_recently.admin_order_field = 'pub_date'

    was_published_recently.boolean = True

    was_published_recently.short_description = 'Published recently?'

    

class Choice(models.Model):

    poll = models.ForeignKey(Poll)

    choice_text = models.CharField(max_length=200)

    votes = models.IntegerField(default=0)

    def __unicode__(self):

        return self.choice_text

[mysite\polls\urls.py]

from django.conf import settings

from django.conf.urls.static import static

from django.conf.urls import patterns, include, url

from polls import views

urlpatterns = patterns('',

    url(r'^$', views.IndexView.as_view(), name='index'),

    url(r'^(?P<pk>\d+)/$', views.DetailView.as_view(), name='detail'),

    url(r'^(?P<pk>\d+)/results/$', views.ResultsView.as_view(), name='results'),

    url(r'^(?P<poll_id>\d+)/vote/$', views.vote, name='vote'),

) 

[mysite\polls\views.py]

from django.shortcuts import render, get_object_or_404

from django.http import HttpResponse, Http404,HttpResponseRedirect

from django.template import RequestContext, loader

from django.core.urlresolvers import reverse

from django.views import generic

from polls.models import Choice, Poll

# Create your views here.

class IndexView(generic.ListView):

    template_name = 'polls/index.html'

    context_object_name = 'latest_poll_list'

    def get_queryset(self):

        """Return the last five published polls."""

        return Poll.objects.order_by('-pub_date')[:5]

class DetailView(generic.DetailView):

    model = Poll

    template_name = 'polls/detail.html'

class ResultsView(generic.DetailView):

    model = Poll

    template_name = 'polls/results.html'

def vote(request, poll_id):

    p = get_object_or_404(Poll, pk=poll_id)

    try:

        selected_choice = p.choice_set.get(pk=request.POST['choice'])

    except (KeyError, Choice.DoesNotExist):

        # Redisplay the poll voting form.

        return render(request, 'polls/detail.html', {

            'poll': p,

            'error_message': "You didn't select a choice.",

        })

    else:

        selected_choice.votes += 1

        selected_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,)))

파이썬 코드는 여기서 끝

[mysite\polls\templates\polls\index.html]

{% if latest_poll_list %}
    <ul class="list-group">
    {% for poll in latest_poll_list %}
        <li class="list-group-item"><a href="{% url 'polls:detail' poll.id %}">{{ poll.question }}</a></li>
    {% endfor %}
    </ul>
{% else %}
    <p>No polls are available.</p>
{% endif %}

[mysite\polls\templates\polls\detail.html]

<h1>{{ poll.question }}</h1>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
<form action="{% url 'polls:vote' poll.id %}" method="post">
{% csrf_token %}
{% for choice in poll.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>

[mysite\polls\templates\polls\results.html]

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