solution

requirements.txt

@@ -4,4 +4,5 @@ flake8-quotes==3.3.1
 flake8-variables-names==0.0.5
 pep8-naming==0.13.2
 django-debug-toolbar==3.2.4
-django-crispy-forms==1.14.0
+django-crispy-forms==1.14.0
+crispy_bootstrap4

taxi/forms.py

@@ -0,0 +1,44 @@
+from django import forms
+from .models import Car, Driver
+from django.core.exceptions import ValidationError
+
+
+class LicenseNumberValidationMixin:
+    def clean_license_number(self):
+        license_number = self.cleaned_data.get("license_number")
+        if len(license_number) != 8:
+            raise ValidationError(
+                "License number must consist of exactly 8 characters."
+            )
+        first_three = license_number[:3]
+        if not first_three.isupper() or not first_three.isalpha():
+            raise ValidationError(
+                "The first 3 characters must be uppercase letters."
+            )
+        if not license_number[3:].isdigit():
+            raise ValidationError("The last 5 characters must be digits.")
+        return license_number
+
+
+class CarCreateForm(forms.ModelForm):
+    drivers = forms.ModelMultipleChoiceField(
+        queryset=Driver.objects.all(),
+        widget=forms.CheckboxSelectMultiple,
+        required=False
+    )
+
+    class Meta:
+        model = Car
+        fields = ["model", "manufacturer", "drivers"]
+
+
+class DriverForm(LicenseNumberValidationMixin, forms.ModelForm):
+    class Meta:
+        model = Driver
+        fields = ["username", "first_name", "last_name", "license_number"]
+
+
+class DriverLicenseUpdateForm(LicenseNumberValidationMixin, forms.ModelForm):
+    class Meta:
+        model = Driver
+        fields = ["license_number"]

taxi/urls.py

@@ -13,6 +13,11 @@
     ManufacturerCreateView,
     ManufacturerUpdateView,
     ManufacturerDeleteView,
+    DriverCreateView,
+    DriverDeleteView,
+    DriverUpdateView,
+    assign_driver,
+    remove_driver,
 )
 
 urlpatterns = [
@@ -46,6 +51,28 @@
     path(
         "drivers/<int:pk>/", DriverDetailView.as_view(), name="driver-detail"
     ),
+    path("drivers/create/", DriverCreateView.as_view(), name="driver-create"),
+    path(
+        "drivers/<int:pk>/delete/",
+        DriverDeleteView.as_view(),
+        name="driver-delete"
+    ),
+    path(
+        "driver/<int:pk>/update/",
+        DriverUpdateView.as_view(),
+        name="driver-update"
+    ),
+    path("car/<int:pk>/", CarDetailView.as_view(), name="car-detail"),
+    path(
+        "car/<int:car_id>/assign-driver/",
+        assign_driver,
+        name="assign-driver"
+    ),
+    path(
+        "car/<int:car_id>/remove-driver/",
+        remove_driver,
+        name="remove-driver"
+    ),
 ]
 
 app_name = "taxi"

taxi/views.py

@@ -1,10 +1,11 @@
 from django.contrib.auth.decorators import login_required
-from django.shortcuts import render
+from django.shortcuts import render, redirect, get_object_or_404
 from django.urls import reverse_lazy
 from django.views import generic
 from django.contrib.auth.mixins import LoginRequiredMixin
 
 from .models import Driver, Car, Manufacturer
+from .forms import DriverLicenseUpdateForm, CarCreateForm
 
 
 @login_required
@@ -61,16 +62,24 @@ class CarListView(LoginRequiredMixin, generic.ListView):
 class CarDetailView(LoginRequiredMixin, generic.DetailView):
     model = Car
 
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        car = self.object
+        context["is_driver"] = self.request.user in car.drivers.all()
+        return context
+
 
 class CarCreateView(LoginRequiredMixin, generic.CreateView):
     model = Car
-    fields = "__all__"
+    form_class = CarCreateForm
+    template_name = "taxi/car_form.html"
     success_url = reverse_lazy("taxi:car-list")
 
 
 class CarUpdateView(LoginRequiredMixin, generic.UpdateView):
     model = Car
-    fields = "__all__"
+    form_class = CarCreateForm
+    template_name = "taxi/car_form.html"
     success_url = reverse_lazy("taxi:car-list")
 
 
@@ -87,3 +96,49 @@ class DriverListView(LoginRequiredMixin, generic.ListView):
 class DriverDetailView(LoginRequiredMixin, generic.DetailView):
     model = Driver
     queryset = Driver.objects.all().prefetch_related("cars__manufacturer")
+
+
+class DriverCreateView(LoginRequiredMixin, generic.CreateView):
+    model = Driver
+    fields = [
+        "username",
+        "first_name",
+        "last_name",
+        "license_number",
+        "password"
+    ]
+    template_name = "taxi/driver_form.html"
+    success_url = reverse_lazy("taxi:driver-list")
+
+    def form_valid(self, form):
+        driver = form.save(commit=False)
+        driver.set_password(form.cleaned_data["password"])
+        driver.save()
+        return super().form_valid(form)
+
+
+class DriverDeleteView(LoginRequiredMixin, generic.DeleteView):
+    model = Driver
+    template_name = "taxi/driver_confirm_delete.html"
+    success_url = reverse_lazy("taxi:driver-list")
+
+
+class DriverUpdateView(LoginRequiredMixin, generic.UpdateView):
+    model = Driver
+    form_class = DriverLicenseUpdateForm
+    template_name = "taxi/driver_license_update_form.html"
+    success_url = reverse_lazy("taxi:driver-list")
+
+
+@login_required
+def assign_driver(request, car_id):
+    car = get_object_or_404(Car, pk=car_id)
+    car.drivers.add(request.user)
+    return redirect("taxi:car-detail", pk=car.id)
+
+
+@login_required
+def remove_driver(request, car_id):
+    car = get_object_or_404(Car, pk=car_id)
+    car.drivers.remove(request.user)
+    return redirect("taxi:car-detail", pk=car.id)

taxi_service/settings.py

@@ -42,6 +42,7 @@
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
+    "crispy_bootstrap4",
     "debug_toolbar",
     "crispy_forms",
     "taxi",

templates/base.html

@@ -9,7 +9,7 @@
       href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
       integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2"
       crossorigin="anonymous">
-  <!-- Add additional CSS in static file -->
+
   {% load static %}
   <link rel="stylesheet" href="{% static 'css/styles.css' %}">
 </head>

templates/taxi/car_detail.html

@@ -19,4 +19,17 @@ <h1>Drivers</h1>
       <li>{{ driver.username }} ({{ driver.first_name }} {{ driver.last_name }})</li>
     {% endfor %}
   </ul>
+
+  {% if not is_driver %}
+    <form action="{% url 'taxi:assign-driver' car.id %}" method="post">
+      {% csrf_token %}
+      <input type="submit" value="Assign me to this car" class="btn btn-success">
+    </form>
+  {% else %}
+    <form action="{% url 'taxi:remove-driver' car.id %}" method="post">
+      {% csrf_token %}
+      <input type="submit" value="Delete me from this car" class="btn btn-warning">
+    </form>
+  {% endif %}
+
 {% endblock %}

templates/taxi/driver_confirm_delete.html

@@ -0,0 +1,10 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1>Are you sure you want to delete "{{ object }}"?</h1>
+<form method="post">
+    {% csrf_token %}
+    <button type="submit" class="btn btn-danger">Confirm Delete</button>
+    <a href="{% url 'taxi:driver-list' %}" class="btn btn-secondary">Cancel</a>
+</form>
+{% endblock %}

templates/taxi/driver_detail.html

@@ -23,4 +23,9 @@ <h4>Cars</h4>
       <p>No cars!</p>
     {% endfor %}
   </div>
+
+  <div class="mt-3">
+    <a href="{% url 'taxi:driver-update' driver.id %}" class="btn btn-primary">Update License</a>
+    <a href="{% url 'taxi:driver-delete' driver.id %}" class="btn btn-danger">Delete Driver</a>
+  </div>
 {% endblock %}

templates/taxi/driver_form.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+{% load crispy_forms_tags %}
+
+{% block content %}
+<h1>Create a New Driver</h1>
+<form method="post" novalidate>
+    {% csrf_token %}
+    {{ form|crispy }}
+    <input type="submit" value="Save" class="btn btn-primary">
+</form>
+{% endblock %}

templates/taxi/driver_license_update_form.html

@@ -0,0 +1,10 @@
+{% extends "base.html" %}
+
+{% block content %}
+    <h1>Update Driver License</h1>
+    <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <button type="submit" class="btn btn-primary">Update License</button>
+    </form>
+{% endblock %}

templates/taxi/driver_list.html

@@ -3,6 +3,8 @@
 {% block content %}
     <h1>Driver List
     </h1>
+
+    <a href="{% url 'taxi:driver-create' %}" class="btn btn-primary mb-3">Create New Driver</a>
 
     {% if driver_list %}
     <table class="table">