Praktikum8

news1/.gitignore

@@ -0,0 +1,4 @@
+db.sqlite3
+bin/*
+venv/*
+lib/*

news1/news1/settings.py

@@ -38,6 +38,10 @@ INSTALLED_APPS = [
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'posts',
+    'rest_framework',
+    'channels',
+    'django_eventstream',
+
 ]
 
 MIDDLEWARE = [
@@ -48,6 +52,7 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django_grip.GripMiddleware'
 ]
 
 ROOT_URLCONF = 'news1.urls'
@@ -70,6 +75,7 @@ TEMPLATES = [
 ]
 
 WSGI_APPLICATION = 'news1.wsgi.application'
+ASGI_APPLICATION = 'news1.routing.application'
 
 
 # Database
@@ -105,7 +111,7 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/2.2/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = 'de-de'
 
 TIME_ZONE = 'UTC'
 

news1/news1/urls.py

@@ -18,5 +18,7 @@ from django.urls import path, include
 urlpatterns = [
     path('posts/' , include('posts.urls')),
     path('admin/', admin.site.urls),
+    path('accounts/' , include('django.contrib.auth.urls')),
+
 
 ]

news1/posts/forms.py

@@ -0,0 +1,12 @@
+from django import forms
+import datetime
+class NoticeForm(forms.Form):
+       date_formats = ['%d.%m.%Y', '%d.%m.%y']
+       title = forms.CharField(label='Titel', max_length=80)
+       text = forms.CharField(label='Text', max_length=400)
+       start = forms.DateField(label='Von',
+                               input_formats=date_formats,
+                               initial=datetime.date.today)
+       end = forms.DateField(label='Bis',
+                             input_formats=date_formats,
+                             initial=datetime.date.today)

news1/posts/migrations/0001_initial.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.2.7 on 2019-11-12 12:46
+
+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()),
+            ],
+        ),
+    ]

news1/posts/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','notice_text', 'pub_start', 'pub_end')

news1/posts/templates/posts/edit.html

@@ -0,0 +1,11 @@
+{% extends 'base.html'%}
+{% block content %}
+
+<h1>Neue Nachricht</h1>
+<form method="POST">
+ {% csrf_token %}
+ {{ form.as_p }}
+ <button type="submit" class="save btn btn-default">Speichern</button>
+</form>
+
+    {% endblock %}

news1/posts/templates/posts/notice.html

@@ -0,0 +1,26 @@
+{% extends 'base.html'%}
+{% block content %}
+
+
+
+
+    <div class="container">
+     {% for notice in notices %}
+    <h3> {{ notice.notice_title }}</h3>
+    <p> {{ notice.notice_text }}</p>
+        <p><a href="{% url 'delete' deleteId=notice.id%}" class="btn btn-danger">Meldung löschen</a></p>
+         <hr>
+    {% endfor %}
+            <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>
+
+    </div>
+
+    <script>
+        var es = new ReconnectingEventSource('/events/');
+        es.addEventListener('message',function(e) {
+            console.log(e.data); location.reload();false
+        })
+    </script>
+{% endblock %}

news1/posts/urls.py

@@ -1,6 +1,11 @@
 from django.urls import path
-
 from.import views
+
+
 urlpatterns =[
     path('', views.index, name='index'),
+    path('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),
 ]

news1/posts/views.py

@@ -1,6 +1,15 @@
-from django.shortcuts import render
+from django.contrib.auth.decorators import login_required
+from django.shortcuts import render, redirect
+from django.views.decorators.csrf import csrf_exempt
+from django_eventstream import send_event
+from rest_framework.parsers import JSONParser
+
+from posts.forms import NoticeForm
+from posts.serializers import NoticeSerializer
 from.models import Notice
 from django.utils import  timezone
+from django.http import HttpResponse, JsonResponse
+
 
 def index(request):
      notices= Notice.objects.all()
@@ -9,9 +18,57 @@ def index(request):
      context={"notices":notices}
      return render(request, 'posts/notice.html', context)
 
+@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'])
+            newNotice.save()
+            send_event('notice', 'message',  newNotice.id)
+            return redirect('index')
+    context = {'form': NoticeForm()}
+    return render(request, 'posts/edit.html', context)
 
-
+def delete(request, deleteId=None):
-
+    if deleteId !=None:
-
+        delNotice=  Notice.objects.get(id=deleteId)
-
+        if delNotice!= None:
-
+            delNotice.delete()
+            send_event('notice', 'message', deleteId)
+    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=201)
+@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)

news1/templates/base.html

@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <html lang="fr">
 <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="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
 

news1/templates/registration/login.html

@@ -0,0 +1,22 @@
+{% extends 'base.html' %}
+{% block title %}
+    {% if user.is_authenticated %}
+<p><a href="{% url 'logout' %}?next=/posts"
+class="btn btn-warning">Abmelden</a></p>
+
+    {% endif %}
+
+    Login
+{% endblock %}
+{% block content %}
+    <form method="post" action="{% url 'login' %}">
+        {% csrf_token %}
+        Benutzername: {{ form.username }} <br>
+        Passwort: {{ form.password }} <br>
+        <button type="submit" class="btn btn-default">Anmelden</button>
+        <input type="hidden" name="next" value="{{ next }}"/>
+    </form>
+{% endblock %}
+
+
+