PR9

PR/routing.py

@@ -0,0 +1,18 @@
+from channels.routing import ProtocolTypeRouter, URLRouter
+from django.urls import re_path
+from channels.routing import URLRouter
+from channels.http import AsgiHandler
+from channels.auth import AuthMiddlewareStack
+import django_eventstream
+
+urlpatterns = [
+    #idz lt. URL ein Eventstream auszuliefern
+    re_path(r'^events/',
+            AuthMiddlewareStack(URLRouter(django_eventstream.routing.urlpatterns)),
+            {'channels': ['notice']}),
+    #bei allen anderen Anfragen werden die Standart-Router verwendet
+    re_path(r'', AsgiHandler),
+]
+application = ProtocolTypeRouter({
+    'http': URLRouter(urlpatterns)
+})

PR/settings.py

@@ -38,6 +38,9 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'rest_framework',
+    'channels',
+    'django_eventstream',
 ]
 
 MIDDLEWARE = [
@@ -48,6 +51,9 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django_grip.GripMiddleware',
+    'django.middleware.security.SecurityMiddleware',
+
 ]
 
 ROOT_URLCONF = 'PR.urls'
@@ -70,7 +76,7 @@ TEMPLATES = [
 ]
 
 WSGI_APPLICATION = 'PR.wsgi.application'
-
+ASGI_APPLICATION = 'PR.routing.application'
 
 # Database
 # https://docs.djangoproject.com/en/2.2/ref/settings/#databases

polls/migrations/0001_initial.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.2.7 on 2019-11-30 16:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Notice',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('notice_title', models.CharField(max_length=80)),
+                ('notice_text', models.CharField(max_length=400)),
+                ('pub_start', models.DateTimeField()),
+                ('pub_end', models.DateTimeField()),
+            ],
+        ),
+    ]

polls/models.py

@@ -5,4 +5,6 @@ class Notice(models.Model):
     notice_title = models.CharField(max_length=80)
     notice_text = models.CharField(max_length=400)
     pub_start = models.DateTimeField()
-    pub_end = models.DateTimeField()
+    pub_end = models.DateTimeField()
+
+    #neues model python migration

polls/serializers.py

@@ -0,0 +1,7 @@
+from rest_framework import serializers
+from .models import Notice
+
+class NoticeSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Notice
+        fields = ('id', 'notice_title', 'pub_start', 'pub_end')

polls/urls.py

@@ -19,13 +19,18 @@ from django.urls import path
 from polls import views
 
 urlpatterns = [
-    #path('', views.index , name='index'),
+    path('', views.index , name='index'),
     path('new', views.new, name='new'),
     #path('index',views.index, name='index'),
     path('notice',views.index, name = 'index'),
     path('welcome', views.welcome_seite),
     path('home', views.welcome_seite),
     path('about', views.about_seite),
-    path('delete/<int:deleteId>', views.delete, name ='delete')
+    path('delete/<int:deleteId>', views.delete, name ='delete'),
     #url(r'^new', views.new, name='new'),
+    path('notices/', views.notice_list),
+    path('notices/<int:id>/', views.notice_detail),
+
+
+
 ]

polls/views.py

@@ -1,9 +1,30 @@
-from django.http import HttpResponse
 from django.shortcuts import render,redirect
 from .models import Notice
 from django.utils import timezone
 import logging
+
+#Pr8
+from django.views.decorators.csrf import csrf_exempt
+from django.http import HttpResponse,JsonResponse
 from polls.forms import NoticeForm
+from polls.models import Notice
+from polls.serializers import NoticeSerializer
+from rest_framework.parsers import JSONParser
+#XXXX
+from django.contrib.admin.views.decorators import staff_member_required
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse, JsonResponse
+from django.shortcuts import render, redirect
+from django.utils import timezone
+from django.views.decorators.csrf import csrf_exempt
+from django_eventstream import send_event
+from rest_framework.parsers import JSONParser
+
+from polls.forms import NoticeForm
+from polls.models import Notice
+
+# Create your views here.
+from polls.serializers import NoticeSerializer
 
 # Create your views here.
 logger = None
@@ -28,21 +49,25 @@ def index(request):
     #context = {"notices" : notices}
     return render(request, 'polls/notice.html',{"notices" : notices})
 
-#def new(request):
- #   return render(request, 'polls/edit.html')
+
+#login_required
 def new(request):
     if request.method == "POST":
         form = NoticeForm(request.POST)
         if form.is_valid():
             newNotice = Notice(notice_title=form.cleaned_data['title'],
-                       notice_text=form.cleaned_data['text'],
-                       pub_start=form.cleaned_data['start'],
-                       pub_end=form.cleaned_data['end'])
+                               notice_text=form.cleaned_data['text'],
+                               #pub_start=form.cleaned_data['start'],
+                               pub_start= timezone.now(),
+                               pub_end=form.cleaned_data['end'])
             newNotice.save()
+            #Absetzen eines Events
+            send_event('notice', 'message', newNotice.id)
             return redirect('index')
     context = {'form': NoticeForm()}
     return render(request, 'polls/edit.html', context)
 
+#staff_member_required
 def delete(request, deleteId = None):
     if deleteId != None:
         delNotice = Notice.objects.get(id=deleteId)
@@ -54,4 +79,43 @@ def welcome_seite(request):
     return render(request, 'polls/index.html')
 
 def about_seite(request):
-    return render(request, 'polls/about.html')
+    return render(request, 'polls/about.html')
+
+#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().parser(request)
+        serializer = NoticeSerializer(data=data)
+        if serializer.is_valid():
+            serializer.save()
+            return JsonResponse(serializer.data, status=201)
+        return JsonResponse(serializer.errors, status=400)
+
+#csrf_exempt
+def notice_detail(request, id):
+    try:
+        notice = Notice.objects.get(id =id)
+    except Notice.DoesNotExist:
+        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)
+

templates/base.html

@@ -4,6 +4,10 @@
 <!DOCTYPE html>
 <html lang="de">
 <head>
+
+    {%  load static %}
+    <script src="{% static 'django_eventstream/eventsource.min.js' %}"></script>
+    <script src="{% static 'django_eventstream/reconnecting-eventsource.js' %}"></script>
 {#   <link rel="stylesheet" href="/media/css/style.css" />#}
   <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
  <meta name="viewport" content="width=device-width, initial-scale=1">

templates/polls/index.html

@@ -1,6 +1,10 @@
 {% extends "base.html" %}
 {% block content %}
 
+    <script>
+        var es = new ReconnectingEventSource('/events/');
+        es.addEventListener('message', function (e) {console.log(e.data);location.reload();}, false);
+    </script>
     <h2>Seite Infos</h2>