Solution

taxi/views.py

@@ -1,47 +1,53 @@
+from django.contrib.auth.decorators import login_required
+from django.contrib.auth.mixins import LoginRequiredMixin
 from django.shortcuts import render
 from django.views import generic
 
 from .models import Driver, Car, Manufacturer
 
 
+@login_required
 def index(request):
     """View function for the home page of the site."""
 
     num_drivers = Driver.objects.count()
     num_cars = Car.objects.count()
     num_manufacturers = Manufacturer.objects.count()
+    num_visits = request.session.get("num_visits", 0)
+    request.session["num_visits"] = num_visits + 1
 
     context = {
         "num_drivers": num_drivers,
         "num_cars": num_cars,
         "num_manufacturers": num_manufacturers,
+        "num_visits": num_visits + 1,
     }
 
     return render(request, "taxi/index.html", context=context)
 
 
-class ManufacturerListView(generic.ListView):
+class ManufacturerListView(LoginRequiredMixin, generic.ListView):
     model = Manufacturer
     context_object_name = "manufacturer_list"
     template_name = "taxi/manufacturer_list.html"
     paginate_by = 5
 
 
-class CarListView(generic.ListView):
+class CarListView(LoginRequiredMixin, generic.ListView):
     model = Car
     paginate_by = 5
     queryset = Car.objects.select_related("manufacturer")
 
 
-class CarDetailView(generic.DetailView):
+class CarDetailView(LoginRequiredMixin, generic.DetailView):
     model = Car
 
 
-class DriverListView(generic.ListView):
+class DriverListView(LoginRequiredMixin, generic.ListView):
     model = Driver
     paginate_by = 5
 
 
-class DriverDetailView(generic.DetailView):
+class DriverDetailView(LoginRequiredMixin, generic.DetailView):
     model = Driver
     queryset = Driver.objects.prefetch_related("cars__manufacturer")

taxi_service/settings.py

@@ -133,3 +133,5 @@
 # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+LOGIN_REDIRECT_URL = "/"

taxi_service/urls.py

@@ -22,4 +22,5 @@
 urlpatterns = [
     path("admin/", admin.site.urls),
     path("", include("taxi.urls", namespace="taxi")),
+    path("accounts/", include("django.contrib.auth.urls")),
 ] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

templates/includes/sidebar.html

@@ -1,4 +1,20 @@
 <ul class="sidebar-nav">
+  {% if user.is_authenticated %}
+  <li>User: {{ user.get_username }}</li>
+  <li>
+    <form action="{% url 'logout' %}" id="logout-form" method="post">
+      {% csrf_token %}
+      <button class="btn btn-link" type="submit">Logout</button>
+    </form>
+  </li>
+  {% else %}
+    <li>
+      <a href="{% url 'login' %}?next={{ request.path }}">Login</a>
+    </li>
+  {% endif %}
+
+  <br>
+
   <li><a href="{% url "taxi:index" %}">Home page</a></li>
   <li><a href="{% url "taxi:manufacturer-list" %}">Manufacturers</a></li>
   <li><a href="{% url "taxi:car-list" %}">Cars</a></li>

templates/registration/logged_out.html

@@ -0,0 +1,6 @@
+{% extends "base.html" %}
+
+{% block content %}
+  <p>Logged out</p>
+  <a href="{% url 'login' %}">Click here to log in again</a>
+{% endblock %}

templates/registration/login.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block content %}
+  <h1>Login</h1>
+  {% if form.errors %}
+    <p style="color: red">Invalid credentials</p>
+  {% endif %}
+  <form action="{% url 'login' %}" method="post">
+    {% csrf_token %}
+    {{ form.as_p }}
+    <input type="submit" value="Submit">
+    <input type="hidden" name="next" value="{{ next }}">
+  </form>
+{% endblock %}

templates/taxi/driver_list.html

@@ -8,6 +8,7 @@ <h1>Driver list</h1>
         <li>
           <a href="{% url "taxi:driver-detail" pk=driver.id %}">{{ driver.username }}</a>
           ({{ driver.first_name }} {{ driver.last_name }})
+          {% if driver == request.user %} (Me) {% endif %}
         </li>
       {% endfor %}
     </ul>

templates/taxi/index.html

@@ -10,4 +10,5 @@ <h2>Dynamic content</h2>
     <li><strong>Drivers:</strong> {{ num_drivers }}</li>
     <li><strong>Manufacturers:</strong> {{ num_manufacturers }}</li>
   </ul>
+  <p>You have visited this page {{ num_visits }} time{{ num_visits|pluralize }}.</p>
 {% endblock %}