Solution of 08

.gitignore

@@ -82,9 +82,12 @@ target/
 *.pyc
 **__pycache__/
 local_settings.py
+db.sqlite3
 
 .env
 **/db.sqlite3
 
 # PyCharm
 **/.idea/
+
+

MEIM_Lsg/settings.py

@@ -37,7 +37,8 @@ INSTALLED_APPS = [
     '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'
 
 ]
 
@@ -106,7 +107,7 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/2.1/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = 'de-de'
 
 TIME_ZONE = 'UTC'
 

MEIM_Lsg/urls.py

@@ -19,6 +19,7 @@ from . import views
 
 urlpatterns = [
     path('admin/', admin.site.urls),
-    path('', views.index, name='posts'),
-    path('posts/', include('posts.urls'), name='posts')
+    path('', views.index),
+    path('posts/', include('posts.urls')),
+    path('accounts/', include('django.contrib.auth.urls'))
 ]

posts/forms.py

@@ -0,0 +1,9 @@
+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)

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')

posts/urls.py

@@ -3,6 +3,9 @@ from django.urls import path, re_path
 
 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=''),
-    re_path('(?P<value>.*)/$', views.home, name='textausgabe')
+    path('', views.home, name='index'),
+    path('delete/<int:value>', views.delete, name='delete'),
+    path('new', views.new, name='new'),
+    path('notices/', views.notice_list, name='index'),
+    path('notices/<int:id>', views.notice_detail, name='delete'),
 ]

posts/views.py

@@ -1,7 +1,15 @@
-from django.shortcuts import render
+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.
 
 
@@ -17,4 +25,64 @@ def home(request, value=""):
         "title": "Beboop",
         "notices": display_notices
     }
-    return render(request, 'index.html', context)
+    return render(request, 'index.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()
+            return redirect('index')
+    context = {'form': NoticeForm()}
+    return render(request, 'edit.html', context)
+
+@staff_member_required
+def delete(request, value):
+    notice = Notice.objects.get(id = value)
+    notice.delete()
+    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)

templates/base.html

@@ -17,7 +17,7 @@
     <span class="navbar-toggler-icon"></span>
   </button>
   <div class="collapse navbar-collapse" id="navbarNav">
-    <ul class="navbar-nav">
+    <ul class="navbar-nav mr-auto mt-2 mt-lg-0">
       <li class="nav-item active">
         <a class="nav-link" href="/posts">Posts</a>
       </li>
@@ -28,6 +28,18 @@
         <a class="nav-link" href="https://www.google.com/">Google</a>
       </li>
     </ul>
+  <ul class="navbar-nav">
+  {% if request.user.is_authenticated %}
+      <span class="navbar-text"> Willkommen {{ request.user.username }}! </span>
+         <li class="nav-item">
+             <a class="nav-link" href="{% url 'logout' %}?next=/posts">Abmelden</a>
+            </li>
+        {% else %}
+            <li class="nav-item">
+             <a class="nav-link" href="{% url 'login' %}?next=/posts">Anmelden</a>
+            </li>
+        {% endif %}
+  </ul>
   </div>
 </nav>
     {% block content %} {% endblock %}

templates/edit.html

@@ -0,0 +1,12 @@
+{% extends "base.html" %}
+
+{% block title %} {{ title }} {% endblock title %}
+
+{% 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 content %}

templates/index.html

@@ -7,6 +7,12 @@
         <div class="jumbotron">
           <h1 class="display-6">{{ notice.notice_title }}</h1>
           <p class="lead">{{notice.notice_text}}</p>
+            {% if user.is_staff %}
+                <p><a href="{% url 'delete' notice.id %}" class="btn btn-info" role="button">Nachricht löschen</a></p>
+            {% endif %}
         </div>
     {% endfor %}
+    {% if user.is_authenticated %}
+        <p><a href="{% url 'new' %}" class="btn btn-info" role="button">Neue Nachricht</a></p>
+    {% endif %}
 {% endblock content %}

templates/registration/login.html

@@ -0,0 +1,12 @@
+{% extends 'base.html' %}
+{% block title %} Login {% endblock %}
+{%  block content %}
+<div class="container"><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>
+</div>
+{% endblock %}