Solution of 08

MEIM_Lsg/settings.py

     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'posts.apps.PostsConfig'        #you could also add 'posts' to register everything in your app
+    'posts.apps.PostsConfig',        #you could also add 'posts' to register everything in your app
+    'rest_framework'
 
 ]
 

posts/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')

posts/urls.py

 urlpatterns = [
     # use re_path for regex (.*) - this regex accepts anything - see https://docs.python.org/3/library/re.html for more
     path('', views.home, name='index'),
-    re_path('delete/(?P<value>\d+)/$', views.delete, name='delete'),
-    re_path('(?P<value>.*)/$', views.home, name='textausgabe'),
+    path('delete/<int:value>', views.delete, name='delete'),
     path('new', views.new, name='new'),
-    # only accept numbers ^[0-9]*$
+    path('notices/', views.notice_list, name='index'),
+    path('notices/<int:id>', views.notice_detail, name='delete'),
 ]

posts/views.py

+from django.http import JsonResponse, HttpResponse
 from django.shortcuts import render, redirect
 from datetime import timedelta
 from django.utils import timezone
+from rest_framework.parsers import JSONParser
+from django.views.decorators.csrf import csrf_exempt
+
 from posts.models import Notice
 from posts.forms import NoticeForm
 from django.contrib.auth.decorators import login_required
 from django.contrib.admin.views.decorators import staff_member_required
+from posts.serializers import NoticeSerializer
 # Create your views here.
 
 
 def delete(request, value):
     notice = Notice.objects.get(id = value)
     notice.delete()
-    return redirect('index')
+    return redirect('index')
+
+@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 JsonResponse(serializer.errors, status=400)
+    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)
+        return JsonResponse(serializer.errors, status=400)
+
+    elif request.method == 'DELETE':
+        notice.delete()
+        return HttpResponse(status=204)
+
+    return HttpResponse(status=405)