Solution

taxi/forms.py

@@ -0,0 +1,28 @@
+# forms.py
+from django import forms
+from .models import Driver, Car
+import re
+
+
+class DriverLicenseUpdateForm(forms.ModelForm):
+    class Meta:
+        model = Driver
+        fields = ["license_number"]
+
+    def clean_license_number(self):
+        license_number = self.cleaned_data["license_number"]
+        if not re.match(r"^[A-Z]{3}\d{5}$", license_number):
+            raise forms.ValidationError(
+                "License number must consist of exactly 8 characters: "
+                "the first 3 uppercase letters, followed by 5 digits."
+            )
+        return license_number
+
+
+class CarForm(forms.ModelForm):
+    class Meta:
+        model = Car
+        fields = ["model", "manufacturer", "drivers"]
+        widgets = {
+            "drivers": forms.CheckboxSelectMultiple(),
+        }

taxi/migrations/0002_alter_driver_license_number.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.1 on 2024-12-19 19:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('taxi', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='driver',
+            name='license_number',
+            field=models.CharField(max_length=8, unique=True),
+        ),
+    ]

taxi/models.py

@@ -1,5 +1,8 @@
+import re
+
+from django.core.exceptions import ValidationError
 from django.db import models
-from django.contrib.auth.models import AbstractUser
+from django.contrib.auth.models import AbstractUser, User
 from django.urls import reverse
 
 
@@ -15,7 +18,13 @@ def __str__(self):
 
 
 class Driver(AbstractUser):
-    license_number = models.CharField(max_length=255, unique=True)
+    license_number = models.CharField(max_length=8, unique=True)
+
+    def clean_number(self):
+        if not re.match(r"^[A-Z]{3}\d{5}$", self.license_number):
+            raise ValidationError(
+                "License number must consist of 3 "
+                "uppercase letters followed by 5 digits.")
 
     class Meta:
         verbose_name = "driver"

taxi/urls.py

@@ -13,6 +13,10 @@
     ManufacturerCreateView,
     ManufacturerUpdateView,
     ManufacturerDeleteView,
+    DriverCreateView,
+    DriverDeleteView,
+    DriverLicenseUpdateView,
+    toggle_driver,
 )
 
 urlpatterns = [
@@ -46,6 +50,12 @@
     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("drivers/<int:pk>/update-license/",
+         DriverLicenseUpdateView.as_view(), name="driver-update-license"),
+    path("cars/<int:pk>/toggle-driver/", toggle_driver, name="toggle-driver"),
 ]
 
 app_name = "taxi"

taxi/views.py

@@ -1,9 +1,11 @@
 from django.contrib.auth.decorators import login_required
-from django.shortcuts import render
+from django.shortcuts import render, get_object_or_404, redirect
 from django.urls import reverse_lazy
 from django.views import generic
 from django.contrib.auth.mixins import LoginRequiredMixin
+from django.views.generic import UpdateView
 
+from .forms import DriverLicenseUpdateForm, CarForm
 from .models import Driver, Car, Manufacturer
 
 
@@ -62,9 +64,20 @@ class CarDetailView(LoginRequiredMixin, generic.DetailView):
     model = Car
 
 
+@login_required
+def toggle_driver(request, pk):
+    car = get_object_or_404(Car, pk=pk)
+    if request.user in car.drivers.all():
+        car.drivers.remove(request.user)
+    else:
+        car.drivers.add(request.user)
+    return redirect("taxi:car-detail", pk=pk)
+
+
 class CarCreateView(LoginRequiredMixin, generic.CreateView):
     model = Car
-    fields = "__all__"
+    form_class = CarForm
+    template_name = "car_form.html"
     success_url = reverse_lazy("taxi:car-list")
 
 
@@ -87,3 +100,24 @@ 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 = "__all__"
+    success_url = reverse_lazy("taxi:driver-list")
+    template_name = "driver_form.html"
+
+
+class DriverDeleteView(LoginRequiredMixin, generic.DeleteView):
+    model = Driver
+    fields = "__all__"
+    template_name = "driver_confirm_delete.html"
+    success_url = reverse_lazy("driver-list")
+
+
+class DriverLicenseUpdateView(UpdateView):
+    model = Driver
+    form_class = DriverLicenseUpdateForm
+    template_name = "driver_license_update.html"
+    success_url = reverse_lazy("taxi:driver-list")

taxi_service/settings.py

@@ -45,6 +45,7 @@
     "debug_toolbar",
     "crispy_forms",
     "taxi",
+    "crispy_bootstrap4",
 ]
 
 MIDDLEWARE = [

templates/car_form.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+
+{% block content %}
+<h1>Create Car</h1>
+<form method="post">
+    {% csrf_token %}
+    {{ form.as_p }}
+    <button type="submit" class="btn btn-success">Create Car</button>
+</form>
+<a href="{% url "taxi:car-list" %}" class="btn btn-secondary">Back to Car List</a>
+{% endblock %}

templates/driver_confirm_delete.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+
+{% block content %}
+<h1>Delete Driver</h1>
+<p>Are you sure you want to delete "{{ object }}"?</p>
+<form method="post">
+    {% csrf_token %}
+    <button type="submit" class="btn btn-danger">Yes, Delete</button>
+    <a href="{% url "taxi:driver-list" %}" class="btn btn-secondary">Cancel</a>
+</form>
+{% endblock %}

templates/driver_form.html

@@ -0,0 +1,26 @@
+{% extends "base.html" %}
+{% load crispy_forms_tags %}
+
+{% block content %}
+<h1>Driver List</h1>
+<a href="{% url "taxi:driver-create" %}" class="btn btn-primary">Create Driver</a>
+<table>
+    <tr>
+        <th>Username</th>
+        <th>First name</th>
+        <th>Last name</th>
+        <th>License number</th>
+    </tr>
+    {% for driver in drivers %}
+    <tr>
+        <td>{{ driver.username }}</td>
+        <td>{{ driver.first_name }}</td>
+        <td>{{ driver.last_name }}</td>
+        <td>{{ driver.license_number }}</td>
+        <td>
+            <a href="{% url "taxi:driver-delete" driver.pk %}" class="btn btn-danger">Delete</a>
+        </td>
+    </tr>
+    {% endfor %}
+</table>
+{% endblock %}

templates/driver_license_update.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+
+{% block content %}
+<h1>Update Driver's License</h1>
+<form method="post">
+    {% csrf_token %}
+    {{ form.as_p }}
+    <button type="submit" class="btn btn-success">Update License</button>
+    <a href="{% url "taxi:driver-list" %}" class="btn btn-secondary">Back to Driver List</a>
+</form>
+{% endblock %}

templates/taxi/car_detail.html

@@ -1,22 +1,33 @@
 {% extends "base.html" %}
 
 {% block content %}
-  <h1>
-    {{ car.model }}
-    <a href="{% url 'taxi:car-delete' pk=car.id %}" class="btn btn-danger link-to-page">
-      Delete
-    </a>
-
-    <a href="{% url 'taxi:car-update' pk=car.id %}" class="btn btn-secondary link-to-page">
-      Update
-    </a>
-  </h1>
-  <p>Manufacturer: ({{ car.manufacturer.name }}, {{ car.manufacturer.country }})</p>
+  <h1>Model: {{ car.model }}</h1>
+  <p><b>Manufacturer: </b>({{ car.manufacturer.name }}, {{ car.manufacturer.country }})</p>
+  <div>
+    {% if user in car.drivers.all %}
+      <form action="{% url "taxi:toggle-driver" car.id %}" method="post">
+        {% csrf_token %}
+        <button type="submit" class="btn btn-danger">Delete me from this car</button>
+      </form>
+    {% else %}
+      <form action="{% url "taxi:toggle-driver" car.id %}" method="post">
+        {% csrf_token %}
+        <button type="submit" class="btn btn-primary">Assign me to this car</button>
+      </form>
+    {% endif %}
+  </div>
   <h1>Drivers</h1>
   <hr>
-  <ul>
+
     {% for driver in car.drivers.all %}
-      <li>{{ driver.username }} ({{ driver.first_name }} {{ driver.last_name }})</li>
+      <p><b>Username: </b>{{ driver.username }}</p>
+      <p><b>Full name: </b>({{ driver.first_name }} {{ driver.last_name }})</p>
+      <p><b>License number: </b>{{ driver.license_number }}</p>
+      <hr>
     {% endfor %}
-  </ul>
+
+  <div class="d-flex justify-content-start">
+    <a href="{% url "taxi:car-delete" pk=car.id %}" class="btn btn-danger link-to-page">Delete</a>
+    <a href="{% url "taxi:car-update" pk=car.id %}" class="btn btn-secondary link-to-page">Update</a>
+  </div> 
 {% endblock %}

templates/taxi/driver_detail.html

@@ -22,5 +22,7 @@ <h4>Cars</h4>
     {% empty %}
       <p>No cars!</p>
     {% endfor %}
+  <a href="{% url "taxi:driver-update-license" driver.pk %}" class="btn btn-primary">Update License</a>
+  <a href="{% url "taxi:driver-delete" driver.pk %}" class="btn btn-danger">Delete Driver</a>
   </div>
 {% endblock %}