django tutorial: end of part 4 - using generic views.

Author: andrecp

mysite/polls/urls.py

@@ -3,12 +3,8 @@
 from . import views
 
 urlpatterns = [
-    # 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/$', views.results, name='results'),
-    # ex: /polls/5/vote/
+    url(r'^$', views.IndexView.as_view(), name='index'),
+    url(r'^(?P<pk>[0-9]+)/$', views.DetailView.as_view(), name='detail'),
+    url(r'^(?P<pk>[0-9]+)/results/$', views.ResultsView.as_view(), name='results'),
     url(r'^(?P<question_id>[0-9]+)/vote/$', views.vote, name='vote'),
 ]

mysite/polls/views.py

@@ -1,24 +1,28 @@
-from django.http import HttpResponse, HttpResponseRedirect
-from polls.models import Choice, Question
-from django.shortcuts import render, get_object_or_404
+from django.shortcuts import get_object_or_404, render
+from django.http import HttpResponseRedirect
 from django.core.urlresolvers import reverse
+from django.views import generic
 
+from .models import Choice, Question
 
-# 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)
 
+class IndexView(generic.ListView):
+    template_name = 'polls/index.html'
+    context_object_name = 'latest_question_list'
 
-def detail(request, question_id):
-    question = get_object_or_404(Question, pk=question_id)
-    return render(request, 'polls/detail.html', {'question': question})
+    def get_queryset(self):
+        """Return the last five published questions."""
+        return Question.objects.order_by('-pub_date')[:5]
 
 
-def results(request, question_id):
-    question = get_object_or_404(Question, pk=question_id)
-    return render(request, 'polls/results.html', {'question': question})
+class DetailView(generic.DetailView):
+    model = Question
+    template_name = 'polls/detail.html'
+
+
+class ResultsView(generic.DetailView):
+    model = Question
+    template_name = 'polls/results.html'
 
 
 def vote(request, question_id):