add admin site

gaehsnitzproject/settings.py

@@ -41,7 +41,11 @@ else:
 
 INSTALLED_APPS = [
     "gaehsnitz",
+    "django.contrib.admin",
+    "django.contrib.auth",
     "django.contrib.contenttypes",
+    "django.contrib.messages",
+    "django.contrib.sessions",
     "django.contrib.staticfiles",
 ]
 
@@ -49,6 +53,9 @@ MIDDLEWARE = [
     "django.middleware.security.SecurityMiddleware",
     "django.middleware.common.CommonMiddleware",
     "django.middleware.clickjacking.XFrameOptionsMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
 ]
 
 DATABASES = {
@@ -75,6 +82,8 @@ TEMPLATES = [
             "context_processors": [
                 "django.template.context_processors.debug",
                 "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
             ],
         },
     },