prakt 8

djp/djp/settings.py

 # Application definition
 
 INSTALLED_APPS = [
+    'rest_framework',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',

djp/polls/serializers.py

+from rest_framework import serializers
+from .models import Notice
+
+class NoticeSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Notice
+        fields = ('id', 'notice_title', 'notice_text', 'pub_start', 'pub_end')

djp/polls/urls.py

-from django.conf.urls import url, include, re_path
+from django.conf.urls import url, include
+from django.urls import  path
 
 
 
 urlpatterns = [
     url(r'^$', views.index, name='index'),
     url('new', views.new, name='new'),
+    path('delete/<int:deleteId>', views.delete, name='delete'),
+    path('notices/', views.notice_list),
+    path('notices/<int:id>/', views.notice_detail),
 ]

djp/polls/views.py

-from django.http import HttpResponse
+from django.http import HttpResponse, JsonResponse
 from django.shortcuts import render, redirect
 import time
 from django.contrib.auth.decorators import login_required
+from django.contrib.admin.views.decorators import staff_member_required
 from polls.forms import NoticeForm
 from django.utils import timezone
 from datetime import timedelta
 from polls.models import Notice
-
+from polls.serializers import NoticeSerializer
+from rest_framework.renderers import JSONRenderer
+from rest_framework.parsers import JSONParser
+from django.views.decorators.csrf import csrf_exempt
 def index(request):
     context = {'now' : time.strftime('%H:%M:%S', time.localtime()),
                'posts' : Notice.objects.all() }
      #   print(n.notice_title)
     return  render(request, 'polls/index.html', context)
 
+@csrf_exempt
+def notice_list(request):
+
+    if request.method == 'GET':
+        notices = Notice.objects.all()
+        serializer = NoticeSerializer(notices, many=True)
+        return JsonResponse(serializer.data, safe=False)
+    elif request.method == 'POST':
+        data = JSONParser().parse(request)
+        serializer = NoticeSerializer(data=data)
+        if serializer.is_valid():
+            serializer.save()
+            return JsonResponse(serializer.data, status=201)
+        return HttpResponse(status=405)
+
+@csrf_exempt
+def notice_detail(request, id):
+
+    try:
+        notice = Notice.objects.get(id=id)
+    except:
+        return HttpResponse(status=404)
+
+    if request.method == 'GET':
+        serializer = NoticeSerializer(notice)
+        return JsonResponse(serializer.data)
+
+    elif request.method == 'PUT':
+        data = JSONParser().parse(request)
+        serializer = NoticeSerializer(notice, data=data)
+        if serializer.is_valid():
+            serializer.save()
+            return JsonResponse(serializer.data, status=201)
+        return JsonResponse(serializer.errors, status=400)
+
+    elif request.method == 'DELETE':
+        notice.delete()
+        return  HttpResponse(status=204)
+
+    return HttpResponse(status=405)
+
+
+@staff_member_required
+def delete(request, deleteId=None):
+        if deleteId != None:
+            deleteNotice = Notice.objects.get(id=deleteId)
+            if deleteNotice != None:
+                deleteNotice.delete()
+        return redirect('index')
+
 @login_required
 def new(request):
     if request.method == "POST":

djp/templates/polls/index.html

         <div class="container">
             <h1>Index der Polls-Applikation</h1>
             {% for post in posts %}
-                <p>{{ post.notice_title }}   {{ post.notice_text }}
-                <a class="btn btn-info" role="button">delete message</a></p>
-
+                <p>{{ post.notice_title }}   {{ post.notice_text }}</p>
+                <p><a href="{% url 'delete' deleteId=post.id %}" class="btn btn-info">delete message </a></p>
             {% endfor %}
         </div>
     </div>
 
     <p><a href="{% url 'new' %}" class="btn btn-info" role="button">Neue Nachricht</a></p>
 
-    <p><a href="{% url 'logout' %}" class="btn btn-warning">Abmelden</a></p>
+    {% if user.is_authenticated %}
+        <p><a href="{% url 'logout' %}?next=/polls"
+                class="btn btn-warning">Abmelden</a></p>
+    {% endif %}
+
 {% endblock %}