add login/logout to home, add 'only authenticated users are allowed to go to admin view'

fet2020/templates/layout.html

@@ -6,9 +6,9 @@
     <meta charset="utf-8" />
     <meta http-equiv="x-ua-compatible" content="ie=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>FET DjangoLayout</title>
+    <title>FET</title>
     <link rel="stylesheet" href="{% static 'app.css' %}">
-     {% csrf_token %}
+    {% csrf_token %}
     {% block header %}
     {% endblock %}
   </head>
@@ -20,11 +20,16 @@
 </div>
 <div class="top-bar-right">
     <ul class="menu vertical medium-horizontal expanded medium-text-center">
-
-      <li class=""><a href="{%url 'home'%}">Aktuelles</a> </li>
-       <li class=""><a href="/fotos">Fotos</a> </li> 
-      <li class=""><a href="{%url 'members'%}">Mitarbeiter</a>
-      </li>
+        {% if request.user.is_authenticated %}
+            Hallo {{request.user.username}}
+            <li class=""><a href="/admin">Admin</a></li>
+            <li class=""><a href="{%url 'logout'%}">Logout</a> </li>
+        {% else %}
+            <li class=""><a href="{%url 'login'%}">Login</a> </li>
+        {% endif %}
+        <li class=""><a href="{%url 'home'%}">Aktuelles</a> </li>
+        <li class=""><a href="/fotos">Fotos</a> </li>
+        <li class=""><a href="{%url 'members'%}">Mitarbeiter</a> </li>
     </ul>
 </div>
 </div>
@@ -36,7 +41,6 @@
 <div class="grid-x medium-padding-1 large-padding-left-2" style="">
 <div class="cell">
 <ul class="no-bullet">
-<li><a href="/admin">admin</a></li>
 <li><a href="{% url 'posts.show' 'impressum'%}">Impressum</a></li>
 </div>