Solution

accounts/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

accounts/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "accounts"

accounts/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

accounts/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

accounts/urls.py

@@ -0,0 +1,10 @@
+from accounts.views import login_view, logout_view
+from django.urls import path
+
+
+urlpatterns = [
+    path("login/", login_view, name="login"),
+    path("logout/", logout_view, name="logout"),
+]
+
+app_name = "accounts"

accounts/views.py

@@ -0,0 +1,27 @@
+from django.contrib.auth import authenticate, login, logout
+from django.http import HttpRequest, HttpResponse, HttpResponseRedirect
+from django.shortcuts import render
+from django.urls import reverse
+
+
+# Create your views here.
+def login_view(request: HttpRequest) -> HttpResponse:
+    if request.method == "POST":
+        username = request.POST["username"]
+        password = request.POST["password"]
+        user = authenticate(request, username=username, password=password)
+        if user is not None:
+            login(request, user)
+            return HttpResponseRedirect(reverse("taxi:index"))
+        else:
+            context = {
+                "message": "Invalid username or password.",
+            }
+            return render(request, "registration/login.html", context=context)
+    if request.method == "GET":
+        return render(request, "registration/login.html")
+
+
+def logout_view(request: HttpRequest) -> HttpResponse:
+    logout(request)
+    return render(request, "registration/logout.html")

static/css/styles.css

@@ -1,3 +1,7 @@
 body {
     margin-top: 20px;
 }
+
+ul {
+    text-decoration: none;
+}

taxi/migrations/0001_initial.py

@@ -13,51 +13,172 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
-        ('auth', '0012_alter_user_first_name_max_length'),
+        ("auth", "0012_alter_user_first_name_max_length"),
     ]
 
     operations = [
         migrations.CreateModel(
-            name='Driver',
+            name="Driver",
             fields=[
-                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('password', models.CharField(max_length=128, verbose_name='password')),
-                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
-                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
-                ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username')),
-                ('first_name', models.CharField(blank=True, max_length=150, verbose_name='first name')),
-                ('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')),
-                ('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')),
-                ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
-                ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
-                ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
-                ('license_number', models.CharField(max_length=255)),
-                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.Group', verbose_name='groups')),
-                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions')),
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "password",
+                    models.CharField(max_length=128, verbose_name="password"),
+                ),
+                (
+                    "last_login",
+                    models.DateTimeField(
+                        blank=True, null=True, verbose_name="last login"
+                    ),
+                ),
+                (
+                    "is_superuser",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Designates that this user has all permissions without explicitly assigning them.",
+                        verbose_name="superuser status",
+                    ),
+                ),
+                (
+                    "username",
+                    models.CharField(
+                        error_messages={
+                            "unique": "A user with that username already exists."
+                        },
+                        help_text="Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.",
+                        max_length=150,
+                        unique=True,
+                        validators=[
+                            django.contrib.auth.validators.UnicodeUsernameValidator()
+                        ],
+                        verbose_name="username",
+                    ),
+                ),
+                (
+                    "first_name",
+                    models.CharField(
+                        blank=True, max_length=150, verbose_name="first name"
+                    ),
+                ),
+                (
+                    "last_name",
+                    models.CharField(
+                        blank=True, max_length=150, verbose_name="last name"
+                    ),
+                ),
+                (
+                    "email",
+                    models.EmailField(
+                        blank=True,
+                        max_length=254,
+                        verbose_name="email address",
+                    ),
+                ),
+                (
+                    "is_staff",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Designates whether the user can log into this admin site.",
+                        verbose_name="staff status",
+                    ),
+                ),
+                (
+                    "is_active",
+                    models.BooleanField(
+                        default=True,
+                        help_text="Designates whether this user should be treated as active. Unselect this instead of deleting accounts.",
+                        verbose_name="active",
+                    ),
+                ),
+                (
+                    "date_joined",
+                    models.DateTimeField(
+                        default=django.utils.timezone.now,
+                        verbose_name="date joined",
+                    ),
+                ),
+                ("license_number", models.CharField(max_length=255)),
+                (
+                    "groups",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="The groups this user belongs to. A user will get all permissions granted to each of their groups.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.Group",
+                        verbose_name="groups",
+                    ),
+                ),
+                (
+                    "user_permissions",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="Specific permissions for this user.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.Permission",
+                        verbose_name="user permissions",
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'driver',
-                'verbose_name_plural': 'drivers',
+                "verbose_name": "driver",
+                "verbose_name_plural": "drivers",
             },
             managers=[
-                ('objects', django.contrib.auth.models.UserManager()),
+                ("objects", django.contrib.auth.models.UserManager()),
             ],
         ),
         migrations.CreateModel(
-            name='Manufacturer',
+            name="Manufacturer",
             fields=[
-                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(max_length=255)),
-                ('country', models.CharField(max_length=255)),
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255)),
+                ("country", models.CharField(max_length=255)),
             ],
         ),
         migrations.CreateModel(
-            name='Car',
+            name="Car",
             fields=[
-                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('model', models.CharField(max_length=255)),
-                ('drivers', models.ManyToManyField(related_name='cars', to=settings.AUTH_USER_MODEL)),
-                ('manufacturer', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='taxi.manufacturer')),
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("model", models.CharField(max_length=255)),
+                (
+                    "drivers",
+                    models.ManyToManyField(
+                        related_name="cars", to=settings.AUTH_USER_MODEL
+                    ),
+                ),
+                (
+                    "manufacturer",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="taxi.manufacturer",
+                    ),
+                ),
             ],
         ),
     ]

taxi/migrations/0002_alter_manufacturer_options_and_more.py

@@ -6,17 +6,17 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('taxi', '0001_initial'),
+        ("taxi", "0001_initial"),
     ]
 
     operations = [
         migrations.AlterModelOptions(
-            name='manufacturer',
-            options={'ordering': ['name']},
+            name="manufacturer",
+            options={"ordering": ["name"]},
         ),
         migrations.AlterField(
-            model_name='driver',
-            name='license_number',
+            model_name="driver",
+            name="license_number",
             field=models.CharField(max_length=255, unique=True),
         ),
     ]

taxi/migrations/0003_alter_manufacturer_name.py

@@ -6,13 +6,13 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('taxi', '0002_alter_manufacturer_options_and_more'),
+        ("taxi", "0002_alter_manufacturer_options_and_more"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='manufacturer',
-            name='name',
+            model_name="manufacturer",
+            name="name",
             field=models.CharField(max_length=255, unique=True),
         ),
     ]

taxi/urls.py

@@ -1,5 +1,4 @@
 from django.urls import path
-
 from .views import (
     index,
     CarListView,

taxi/views.py

@@ -1,3 +1,4 @@
+from django.contrib.auth.mixins import LoginRequiredMixin
 from django.shortcuts import render
 from django.views import generic
 
@@ -10,38 +11,41 @@ def index(request):
     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,
     }
 
     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

@@ -40,6 +40,7 @@
     "django.contrib.messages",
     "django.contrib.staticfiles",
     "taxi",
+    "accounts",
 ]
 
 MIDDLEWARE = [

taxi_service/urls.py

@@ -13,13 +13,14 @@
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path("blog/", include("blog.urls"))
 """
+
 from django.contrib import admin
 from django.urls import path, include
 from django.conf import settings
 from django.conf.urls.static import static
 
-
 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 +1,10 @@
 <ul class="sidebar-nav">
+  {% if user.is_authenticated %}
+  <li><a href="{% url 'taxi:driver-detail' pk=user.id %}">{{ user.username }}</a></li><br>
+  <li><a href="{% url 'logout' %}">Logout</a></li>
+  {% else %}
+  <li><a href="{% url 'login' %}">Login</a></li>
+  {% endif %}
   <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>