models.py

All the common Django class-based views (CBVs) with a full example, including:

1. List View
2. Detail View
3. Create View
4. Update View
5. Delete View
6. How to connect one view/template to another (like a link or redirect)

---

🧪 Example Model

Let’s assume you have a model like this:

# models.py
from django.db import models
 
class Student(models.Model):
    name = models.CharField(max_length=100)
    age = models.IntegerField()
    department = models.CharField(max_length=100)
 
    def __str__(self):
        return self.name

---

🧠 1. ListView – Show All Students

# views.py
from django.views.generic import ListView
from .models import Student
 
class StudentListView(ListView):
    model = Student
    template_name = 'students/student_list.html'  # Optional
    context_object_name = 'students'

# urls.py
from django.urls import path
from .views import StudentListView
 
urlpatterns = [
    path('students/', StudentListView.as_view(), name='student-list'),
]

<!-- templates/students/student_list.html -->
<h2>All Students</h2>
<ul>
  {% for student in students %}
    <li>
      <a href="{% url 'student-detail' student.pk %}">{{ student.name }}</a>
    </li>
  {% endfor %}
</ul>
<a href="{% url 'student-create' %}">Add Student</a>

---

🔍 2. DetailView – Show a Single Student

# views.py
from django.views.generic import DetailView
 
class StudentDetailView(DetailView):
    model = Student
    template_name = 'students/student_detail.html'
    context_object_name = 'student'

# urls.py
from .views import StudentDetailView
 
urlpatterns += [
    path('students/<int:pk>/', StudentDetailView.as_view(), name='student-detail'),
]

<!-- templates/students/student_detail.html -->
<h2>{{ student.name }}</h2>
<p>Age: {{ student.age }}</p>
<p>Department: {{ student.department }}</p>
<a href="{% url 'student-update' student.pk %}">Edit</a>
<a href="{% url 'student-delete' student.pk %}">Delete</a>
<a href="{% url 'student-list' %}">Back to List</a>

---

➕ 3. CreateView – Add a Student

from django.views.generic.edit import CreateView
from django.urls import reverse_lazy
 
class StudentCreateView(CreateView):
    model = Student
    fields = ['name', 'age', 'department']
    template_name = 'students/student_form.html'
    success_url = reverse_lazy('student-list')

urlpatterns += [
    path('students/create/', StudentCreateView.as_view(), name='student-create'),
]

<!-- templates/students/student_form.html -->
<h2>Add Student</h2>
<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">Save</button>
</form>
<a href="{% url 'student-list' %}">Cancel</a>

---

✏️ 4. UpdateView – Edit a Student

from django.views.generic.edit import UpdateView
 
class StudentUpdateView(UpdateView):
    model = Student
    fields = ['name', 'age', 'department']
    template_name = 'students/student_form.html'
    success_url = reverse_lazy('student-list')

urlpatterns += [
    path('students/<int:pk>/update/', StudentUpdateView.as_view(), name='student-update'),
]

It uses the same form template as the CreateView.

---

❌ 5. DeleteView – Delete a Student

from django.views.generic.edit import DeleteView
 
class StudentDeleteView(DeleteView):
    model = Student
    template_name = 'students/student_confirm_delete.html'
    success_url = reverse_lazy('student-list')

urlpatterns += [
    path('students/<int:pk>/delete/', StudentDeleteView.as_view(), name='student-delete'),
]

<!-- templates/students/student_confirm_delete.html -->
<h2>Are you sure you want to delete {{ student.name }}?</h2>
<form method="post">
  {% csrf_token %}
  <button type="submit">Yes, Delete</button>
</form>
<a href="{% url 'student-detail' student.pk %}">Cancel</a>

---

🔁 Bonus: Linking One View to Another

In templates, use {% url %} to link to other views. For example:

<a href="{% url 'student-detail' student.pk %}">Details</a>
<a href="{% url 'student-create' %}">Add New Student</a>

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✅ Template Folder Structure (Recommended)

yourapp/
├── templates/
│   └── students/
│       ├── student_list.html
│       ├── student_detail.html
│       ├── student_form.html
│       └── student_confirm_delete.html

---

🧩 Summary of URL Names

View	Path	URL Name
List	/students/	student-list
Detail	/students/<int:pk>/	student-detail
Create	/students/create/	student-create
Update	/students/<int:pk>/update/	student-update
Delete	/students/<int:pk>/delete/	student-delete

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Related

• Creating Django Project
• Session-Based Authentication