Solution of 07

MEIM_Lsg/urls.py

 
 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/views.py

 from django.utils import timezone
 from posts.models import Notice
 from posts.forms import NoticeForm
-from django.http import HttpResponse
+from django.contrib.auth.decorators import login_required
+from django.contrib.admin.views.decorators import staff_member_required
 # Create your views here.
 
 
     }
     return render(request, 'index.html', context)
 
+@login_required
 def new(request):
     if request.method == "POST":
         form = NoticeForm(request.POST)
     context = {'form': NoticeForm()}
     return render(request, 'edit.html', context)
 
+@staff_member_required
 def delete(request, value):
     notice = Notice.objects.get(id = value)
     notice.delete()

templates/base.html

     <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>
         <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/index.html

         <div class="jumbotron">
           <h1 class="display-6">{{ notice.notice_title }}</h1>
           <p class="lead">{{notice.notice_text}}</p>
-        <p><a href="{% url 'delete' notice.id %}" class="btn btn-info" role="button">Nachricht löschen</a></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 %}
-    <p><a href="{% url 'new' %}" class="btn btn-info" role="button">Neue Nachricht</a></p>
+    {% 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

+{% 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 %}