Django Tutorials
Django Tutorials Roadmap
Section 1: Introduction to Web Development and Django
-
What is Web Development?
- Client-Side vs. Server-Side.
- Frontend vs. Backend.
- HTTP Protocol (Requests and Responses).
- HTML, CSS, JavaScript (Frontend basics - useful but not strictly required before starting Django).
-
What is Django?
- High-level Python Web Framework.
- "Batteries included" philosophy.
- MTV (Model-Template-View) Architecture.
- Key features (ORM, Admin Panel, URL Dispatcher, Templating Engine, Forms, Authentication).
- Why choose Django? (Rapid development, security features, scalability, large community).
-
Setting up the Development Environment:
- Installing Python.
- Understanding Virtual Environments (
venv
,virtualenv
,conda
). Why use them? - Creating and activating a virtual environment.
- Installing Django using pip (
pip install Django
). - Using a code editor/IDE (VS Code with Python/Django extensions, PyCharm).
-
Creating Your First Django Project:
- Using
django-admin startproject project_name
. - Understanding the project structure (
manage.py
, settings, urls, wsgi, asgi). - Running the development server (
python manage.py runserver
). - Viewing the default welcome page.
- Using
-
Creating Your First Django App:
- Understanding the difference between a project and an app.
- Using
python manage.py startapp app_name
. - Understanding the app structure (models, views, urls, admin, tests, apps).
- Registering the app in
settings.py
.
Section 2: Django Fundamentals - The MTV Architecture
-
Models (M):
- What is an ORM (Object-Relational Mapper)?
- Defining Models (subclassing
django.db.models.Model
). - Understanding Model Fields (
CharField
,IntegerField
,TextField
,DateField
,DateTimeField
,BooleanField
, etc.). - Understanding Relationships (
ForeignKey
,ManyToManyField
,OneToOneField
). - Adding methods to Models (
__str__
, custom methods). - Making Migrations (
python manage.py makemigrations
). - Applying Migrations (
python manage.py migrate
). - Interacting with the Database using the Django Shell (
python manage.py shell
). - Basic QuerySet API (
.all()
,.get()
,.filter()
,.exclude()
,.order_by()
,.count()
,.create()
,.save()
,.delete()
).
-
Views (V):
- What is a View? (A function or class that handles a request and returns a response).
- Function-Based Views (FBVs).
- Class-Based Views (CBVs).
- Understanding the
HttpRequest
object. - Understanding the
HttpResponse
object. - Rendering HTML responses (
render()
shortcut). - Redirecting (
redirect()
shortcut). - Handling different HTTP methods (GET, POST).
-
Templates (T):
- What is the Django Template Language (DTL)?
- Understanding Template Variables (
{{ variable }}
). - Understanding Template Tags (
{% tag %}
- e.g.,for
,if
,block
,extends
). - Understanding Template Filters (
{{ variable|filter }}
- e.g.,date
,length
,lower
). - Template Inheritance (
{% extends %}
,{% block %}
). - Including other templates (
{% include %}
). - Loading static files (CSS, JavaScript, images) in templates (
{% load static %}
,{% static 'path/to/file' %}
).
-
URL Dispatcher (URLs):
- Mapping URLs to Views.
- Understanding
urls.py
(project and app level). - Using the
path()
function. - Capturing parameters from URLs (
,
). - Using named URLs (
name='view_name'
). - Including app URLs in the project's
urls.py
(include()
).
Section 3: Working with Forms
-
What are Django Forms?
- Handling user input securely and efficiently.
- Validation.
- Rendering forms in templates.
-
Creating Forms:
- Subclassing
django.forms.Form
. - Understanding Form Fields (
CharField
,IntegerField
, etc. - similar names to Model Fields but for forms). - Understanding Form Widgets (controlling how fields are displayed - e.g.,
TextInput
,Textarea
).
- Subclassing
-
Using Forms in Views:
- Instantiating forms.
- Handling POST requests and form submission.
- Validating form data (
is_valid()
). - Accessing cleaned data (
form.cleaned_data
).
-
ModelForms:
- Creating forms directly from Models.
- Simplifying form creation for CRUD operations.
Section 4: Django Admin Panel
-
Introduction to the Admin Panel:
- Automatic admin interface for your models.
- Basic CRUD operations out-of-the-box.
-
Creating a Superuser:
python manage.py createsuperuser
.
-
Registering Models with the Admin:
- Modifying
admin.py
. - Using
@register()
decorator oradmin.site.register()
.
- Modifying
-
Customizing the Admin Panel:
- Using
ModelAdmin
to customize list display, search fields, filters, form fields, etc.
- Using
Section 5: Authentication and Authorization
-
Django's Authentication System:
- Built-in user model.
- Handling user registration, login, and logout.
-
Implementing User Registration:
- Creating a registration form.
- Creating a view to handle registration.
-
Implementing User Login and Logout:
- Using Django's built-in login/logout views and forms.
- Customizing login/logout views.
- Handling login redirects.
-
Controlling Access (Authorization):
- Using
@login_required
decorator for function-based views. - Using
LoginRequiredMixin
for class-based views. - Permissions and Groups.
- Checking user permissions (
user.has_perm()
).
- Using
Section 6: Advanced Django Concepts
-
Generic Class-Based Views (GCBVs):
- Understanding and using common GCBVs (
ListView
,DetailView
,CreateView
,UpdateView
,DeleteView
). - Advantages of using GCBVs.
- Understanding and using common GCBVs (
-
User Authentication and Authorization (Deep Dive):
- Customizing the User Model.
- Signals.
- Password management.
-
QuerySet API (Advanced):
- Lookups (
__gt
,__lt
,__contains
,__iexact
, etc.). Q
objects (complex lookups).F
objects (referencing model fields in queries).- Aggregations (
Count
,Sum
,Avg
). - Annotations.
- Select related and Prefetch related (optimizing queries).
- Lookups (
-
Custom Template Tags and Filters:
- Creating your own logic within templates.
-
Middleware:
- Understanding middleware (processing requests and responses globally).
- Common built-in middleware.
- Writing custom middleware.
-
Signals:
- Understanding signals (allowing decoupled applications to be notified of events).
- Common built-in signals.
- Creating and connecting custom signals.
-
Caching:
- Understanding caching strategies.
- Using Django's caching framework (per-site, per-view, per-template, low-level cache API).
-
Sending Emails:
- Using Django's email backend.
- Sending simple emails.
- Sending HTML emails.
-
File Uploads:
- Handling file uploads with forms and models.
- Configuring media files.
-
Internationalization and Localization (i18n and l10n):
- Translating text.
- Handling different languages and locales.
-
Testing in Django:
- Writing Unit Tests for Models, Views, Forms.
- Using Django's testing framework.
- Testing with the Django test client.
-
Security Best Practices:
- Preventing SQL Injection, XSS, CSRF.
- Using Django's built-in security features.
Section 7: REST APIs with Django (Optional but highly recommended)
- Introduction to RESTful APIs.
-
Using Django REST Framework (DRF):
- Installing DRF.
- Serializers (converting Python objects to JSON/XML and vice versa).
- ViewSets and Routers.
- Authentication and Permissions in DRF.
- Building API endpoints for your models.
Section 8: Deployment
-
Preparing for Deployment:
- Collecting static files (
python manage.py collectstatic
). - Configuring production settings (
settings.py
). - Using environment variables.
- Collecting static files (
-
Choosing a Hosting Platform:
- Heroku, PythonAnywhere, AWS, Google Cloud, DigitalOcean, etc.
-
Using a Production Web Server:
- Understanding WSGI (Web Server Gateway Interface).
- Using Gunicorn or uWSGI.
-
Using a Reverse Proxy:
- Understanding Nginx or Apache.
- Serving static files efficiently.
-
Configuring a Production Database:
- PostgreSQL, MySQL.
- Deployment Steps (Platform Specific Examples).
Section 9: Further Exploration and Specialization
- Background Tasks (Celery).
- Real-time Applications (Django Channels).
- Caching Strategies (Redis, Memcached).
- Logging.
- Monitoring and Performance Tuning.
- Security Audits.
- Exploring specific Django packages (e.g., Django Allauth, Django Crispy Forms, Django Debug Toolbar).
- Contributing to the Django project (Optional).
- Building larger, more complex projects.