Django is a Python framework that simplifies web development by handling complex tasks for you. It follows the "Don't Repeat Yourself" (DRY) principle, promoting reusable components and making development faster. With built-in features like user authentication, database connections, and CRUD operations.
It uses the MVT (Model-View-Template) design pattern:
- Model: Represents the data you want to display, typically sourced from a database.
- View: Handles incoming requests and returns the appropriate template and content based on the user's request.
- Template: A text file (usually HTML) that defines the structure of the web page and includes logic for displaying the data.
Why Use Django Framework?
- Built-in Admin: It comes with a ready-to-use admin interface to manage your website data easily.
- Security: Django has built-in protections to guard against common security threats like SQL injection, XSS, and CSRF.
- Reusability: Django follows the DRY (Don't Repeat Yourself) principle, encouraging reusable code components.
- Scalable: Django is designed to handle websites of all sizes, from small apps to large-scale projects.
- ORM (Object-Relational Mapping): Easily interact with your database without writing SQL queries.
- URL Routing: Clean and simple URL structure that maps URLs to views in your app.
- Templating Engine: Separate your HTML from Python code using Django’s templating system, making dynamic content easy to manage.
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Basics
Django structures your application into reusable apps, each responsible for a specific feature or functionality. In this section, we'll learn how to create a Django project
- Django Basics
- Django Installation and Setup
- Django Project MVT Structure
- Create a Basic Project in Django
- Create an App in Django
Views
Django views receive web requests and return web responses. There are two two main types of views: Function Based Views (FBVs) and Class Based Views (CBVs).
To learn about difference between the both the views discussed above: Class Based vs Function Based Views
URLs
URL patterns are used to route incoming requests to the right views in your application. This routing system allows for clean, readable URL structures.
Templates
Django templates are used to create the HTML files that display data to users. They allow you to combine static HTML with dynamic content using template tags and variables. This helps separate the design from the Python code, making your web pages easier to manage and update.
Control Flow
Django variables are used inside templates to display dynamic data passed from views. You can include variables within double curly braces like {{ variable_name }} to show values on your web pages.
Models
Models define your database schema using Python code. Django's ORM (Object-Relational Mapper) handles data migrations and queries.
- Django Models
- Basic App Model – Makemigrations and Migrate
- Model data types and fields list
- Render Model in Django Admin Interface
- ORM – Inserting, Updating & Deleting Data
- Field Validations and Built-In Fields
Admin Interface
Django Admin Interface is a pre-built tool for managing application data. It allows users to perform CRUD operations without writing custom code.
Query-Sets
A QuerySet is a collection of data from the database. It allows you to filter and sort records using Python methods.
Forms
Django comes with built-in Forms that simplify creating and managing HTML forms in web apps. Django Forms automate HTML form generation, data validation, and security (CSRF protection).
- Django Forms
- How to create a form using Django Forms ?
- Render HTML Forms (GET & POST) in Django
- Django Form | Data Types and Fields
- Django Formsets
REST API
Django REST Framework (DRF) is used to build Web APIs. It enables data exchange between your server and external clients like mobile apps or React/Vue frontends.
Miscellaneous
These modules cover specialized features required for production-ready applications such as handling asynchronous requests, managing user permissions, customizing authentication, session management and other practical concerns developers commonly face.
- Ajax and Asynchronous Handling
- User Authentication and Permissions
- Sessions and State Management
- How to integrate Mysql database with Django?
- Django- Debugging and Warnings
- When to Use Django? Comparison with other Development Stacks
Django Projects
Apply your knowledge by building these step-by-step projects:
- Google authentication and Fetching mails from scratch
- ToDo webapp using Django
- Django News App
- Weather app using Django
- College Management System Using Django
- E-Commerce Website Using Django
- Creating Word Counter App Using Django
- Voting System Project Using Django
For more advanced Djngo Projects, refer to this article: Django Projects
Django Quiz
Test your Django knowledge by answering quiz questions. The quiz questions are meant to test your understanding of Django concepts.
Python Django Interview Question
Interviews are most important aspect of job recruitment and you need to prepare for interviews if you want to get job sooner. We have compiled some of the most asked interview questions for Django Developers. To boost your chances of cracking Django interviews at top companies, visit:
Applications of Django
Django is a versatile web framework used in a wide range of industries and projects. Here are some common applications:
- Content Management Systems (CMS): Django is ideal for building custom CMS platforms due to its modularity and flexibility.
- E-commerce Sites: Platforms like e-commerce websites benefit from Django’s scalability and robust security features.
- Social Networking Platforms: Django’s ability to handle high traffic makes it perfect for social media apps and community-based websites.
- Data-Driven Applications: With its powerful ORM and database management capabilities, Django is great for building applications that rely on large datasets.
- API Development: Django, coupled with Django REST Framework (DRF), makes it simple to develop robust and scalable APIs.
- Scientific Computing Platforms: Django is used in platforms that require complex data analysis and visualization.
- News & Publishing Platforms: Its ability to manage large volumes of content efficiently makes it a go-to for news websites and online publications.
- Educational Platforms: Many e-learning websites and educational tools are built with Django for its scalability and security.