Learning Django 5. Program web apps with complete django capabilities, ORM, Template, MongoDB and Docker containerization (Clara Stein) (Z-Library)

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Learning Django 5 Program web apps with complete django capabilities, ORM, Template, MongoDB and Docker containerization Clara Stein

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Preface "Learning Django 5" is intended to help Python programmers, aspiring full stack developers, and web developers build robust and scalable web applications quickly and efficiently. with a basic understanding of Python scripting. Hands-on labs and interactive tasks are used throughout the book to help you practice and apply the concepts as you learn. Beginning with a thorough introduction to Django 5, you'll learn how to install and configure Django on a Linux server, set up virtual environments, and create your first Django project, BookTech. The book walks you through the fundamentals of Django models and ORM, teaching you how to define models, perform database migrations, and interact with the ORM to optimize data querying. You will learn about Django views, including function-based and class-based views, URL mapping, and form handling. The templates section will show you how to create and inherit templates, use template tags and filters, and pass data to templates for dynamic rendering. Advanced topics are thoroughly covered, including user authentication, permission management, and extending the default user model. You'll also learn how to use essential features like site maps, RSS feeds, and SEO optimization to boost your app's visibility and user engagement. The book then goes over deployment and scaling, teaching you how to containerize your application with Docker, deploy to cloud platforms like AWS, and set up continuous integration and deployment pipelines in Jenkins. You will learn how to maintain and monitor your application with tools such as Amazon CloudWatch, New Relic, and Sentry, ensuring that it runs smoothly in production.

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In this book you will learn how to: Comprehensive Django setup with step-by-step installation and configuration of Django 5. Mastering models and ORM to define models and interact with databases efficiently. Understand and implement both function-based and class-based views seamlessly. Perform dynamic template rendering wherein you create, inherit, and customize templates for dynamic web content. Achieve robust user authentication by implementing secure user registration, login, and permission management. Learn SEO skills to optimize your site for search engines with site maps and SEO best practices. Up and running with docker and containerization to containerize your apps for consistent deployment across environments. Learn to deploy applications on AWS with detailed, practical walkthrough. Set up and configure Jenkins pipelines for automated testing and deployment. Use tools like CloudWatch and Sentry for application performance and error tracking.

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Prologue It is with much pleasure that I greet you and invite you to "Learning Django 5"; my name is Clara Stein. This book is intended for seasoned Python programmers, web developers looking to expand their skill set, and newcomers eager to dive into the world of web development. In this book, I will demystify Django 5 and demonstrate how to use this powerful framework to create robust, scalable web applications with ease and efficiency. Django's simplicity and power have captivated me since the moment I discovered it. Django's "batteries-included" philosophy means that it ships with many tools and features out of the box, allowing developers to focus on writing code rather than reinventing the wheel. With Django 5, the framework has become even more powerful and user- friendly, making it ideal for creating modern web applications. We begin our journey by installing Django on a Linux system. I'll walk you through the installation process, configure virtual environments, and create your first Django project. Our sample application, BookTech, will be our constant companion throughout the book, giving us a real-world context in which to apply what we've learned. This hands-on approach allows you to immediately see the practical applications of each concept. Understanding the fundamentals of Django is critical, so we'll begin by delving into Django models and ORM. You'll learn how to define models, perform database migrations, and work with the ORM to achieve efficient data querying. These skills are the foundation of any Django application, allowing you to handle data with confidence and precision. As we progress, you'll learn about the power of Django views and URL routing.

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We will look at both function-based and class-based views, giving you the freedom to choose the best approach for your projects. Mapping URLs to views and managing forms within views will become second nature to you, allowing you to create dynamic, responsive web applications. Templates are the foundation of any web application's front end, and I'll demonstrate how to create and customize them effectively. From basic template creation to advanced techniques such as template inheritance and custom tags, you will learn how to render dynamic content beautifully and efficiently. User authentication and authorization are critical components of any application, and Django excels at these tasks. We will implement secure user registration, login, and permission management to make your applications both user-friendly and secure. You'll also learn how to customize the default user model to meet your specific requirements. We'll discuss SEO and visibility strategies to help your application stand out in a crowded web landscape. You'll learn how to create site maps, configure RSS feeds, and use SEO best practices to boost your site's search engine ranking and user engagement. Deployment and scaling can be daunting tasks, but I'll walk you through them step by step. You'll learn how to use Docker to containerize your application, deploy it to AWS, and configure Jenkins for continuous integration and deployment pipelines. These skills are essential for ensuring consistent and dependable deployments in production environments. Finally, maintaining and monitoring your application is critical to its long- term success. We'll use tools like Amazon CloudWatch, New Relic, and Sentry to track performance and errors, ensuring that your application runs smoothly and efficiently.

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"Learning Django 5" is more than just a technical reference; it takes you on an educational trip through the heart of Django web development. My goal is to give you the knowledge and confidence to create exceptional web applications. So, let's get started and make your ideas a reality with Django 5. Copyright © 2024 by GitforGits All rights reserved. This book is protected under copyright laws and no part of it may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without the prior written permission of the publisher. Any unauthorized reproduction, distribution, or transmission of this work may result in civil and criminal penalties and will be dealt with in the respective jurisdiction at anywhere in India, in accordance with the applicable copyright laws. Published by: GitforGits Publisher: Sonal Dhandre www.gitforgits.com support@gitforgits.com

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Printed in India First Printing: June 2024 Cover Design by: Kitten Publishing For permission to use material from this book, please contact GitforGits at support@gitforgits.com.

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Content Preface GitforGits Acknowledgement Chapter 1: Up and Running with Django 5 Introduction Welcome to Django Key Features of Django 5 Asynchronous Support QuerySet Enhancements Enhanced Forms and Views Improved Security Admin Interface Improvements Support for Newer Python Versions Why Django for Web Development? Popular Applications built using Django Instagram Pinterest Mozilla Disqus The Washington Post Bitbucket

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Prezi Diving Deeper into Django’s Capabilities Setting up Django Environment Prerequisites for Linux Installing Python Setting up Virtual Environments Installing Django 5 Creating Your First Django ‘BookTech’ Project Understanding Project Structure manage.py BookTech/ Running the Development Server Troubleshooting Installation Issues Virtual Environments Why Virtual Environments? Creating and Activating Virtual Environments Navigating Files and Directories manage.py settings.py urls.py asgi.py and wsgi.py Practicing Navigation and Modifications Adding a New App Registering the App Defining URLs for the App Creating a Simple View Running the Server

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Accessing the App Running the Development Server Overview Launching the Development Server Server Configuration and Customization Accessing the Application Interacting with Application URL Configuration View Configuration Access the View Development Server Output Server Startup Requests Handling Summary Test Your Knowledge Chapter 2: Django Models and ORM Introduction Defining Models What Models Mean in Django? Creating a Model Navigate to the BookTech App Directory Create the Library App Define the Book Model

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Register the Model with the Admin Site Migrate the Database Create and Query Book Instances Database Migrations Applying Migrations to the Database Generate Migrations Apply Migrations Managing Database Schema Changes Adding a New Field to a Model Modifying an Existing Field Removing a Field Renaming a Field Reverting Migrations Sample Program: Managing Migration to Model Updates Interacting with ORM What is ORM in Django? Performing Queries with Django ORM Setting up the Environment Entering the Django Shell Creating Records Retrieving Records Updating Records Deleting Records Complex Queries Using Custom Methods Relationships and Foreign Keys Understanding Foreign Keys and related Terms

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Building a Relational Model Create the Author Model Include a Foreign Key to Author Create the Publisher Model Include a Many-to-Many Relationship with Publisher Create and Apply Migrations Register the Models with the Admin Site Creating and Querying Related Instances Custom Model Methods Overview Adding Custom Methods to Existing Model Adding a Custom Method to the Book Model Adding a Custom Method to the Author Model Adding a Custom Method to the Publisher Model Using Custom Methods Adding a Custom Method to Retrieve Related Data Hands-on Lab: Create and query a book catalog Define Models Apply Migrations Populate Database with Sample Data Query the Book Catalog Desired Output Summary Test Your Knowledge

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Chapter 3: Views and URL Routing Introduction Understanding Views Introduction to Views in Django Function-Based Views (FBVs) Class-Based Views (CBVs) Applicability of Function-Based and Class-Based Views Sample Program: Function-based View for List of Books Book List View Book Detail View Sample Program: Class-based View for List of Books Book List View Book Detail View Mapping URLs to Views Overview Setting up URL Configurations Project-level URL Configuration App-level URL Configuration Define URL Patterns for Function-Based Views Define URL Patterns for Class-Based Views Combining Function-Based and Class-Based Views Testing the URL Configurations Dynamic Routing Concept of Dynamic Routing Sample Program: Creating URLs with Dynamic Content Setting up Models

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Creating Views with Dynamic Routing Defining URL Patterns with Dynamic Segments Creating Templates for Dynamic Content Testing Dynamic Routing Creating View to List Books with Links to Dynamic Routes Expanding Dynamic Routing with Complex URLs Handling Forms in Views Overview Setting up a Form Creating a Form Class Creating the View to Handle the Form Defining URL Pattern for the View Creating the Template for the Form Validating Form Data Handling Multiple Form Types in a Single View View Decorators Overview Understanding Django View Decorators Using a Single Decorator Update View with a Decorator Using Multiple Decorators Update View with Multiple Decorators Creating Custom Decorators Creating a Custom Decorator Applying Custom Decorator to a View Interactive Task Define the Models

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Create Views for Book List and Book Detail Book List View Book Detail View Define URL Patterns Create Templates Book List Template Book Detail Template Enhancing Views with Class-Based Views Book List View Book Detail View Update URL Patterns Summary Test Your Knowledge Chapter 4: Templates and Django's Template Language Introduction Creating Templates Overview Setting up Django Templates Configure Template Settings Create Template Directory Create a Base Template Create Child Templates Update Views to Use Templates Styling with CSS

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Template Tags and Filters Overview Built-in Template Tags {% for %} {% if %} {% block %} and {% extends %} {% include %} Built-in Template Filters Date Length Truncatechars lower and upper Custom Template Tags and Filters Creating Custom Filters Using Custom Filters in Templates Creating Custom Tags Using Custom Tags in Templates Context and Rendering Rendering Templates with Context Sample Program: Rendering Templates in BookTech Updating the Book List View Updating the Book Detail View Context Processors Creating a Context Processor Registering the Context Processor Using Context Processor in Templates Rendering Multiple Context Variables Hands-on Lab: Design Book Listing and Detail Page

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Define the Models Create Views for Book List and Detail Pages Book List View Book Detail View Define URL Patterns Create Templates Book List Template Book Detail Template Add Sample Data Using Django Shell Summary Test Your Knowledge Chapter 5: Forms and Validation Introduction Creating Forms Introduction to Forms in Django Building and Displaying Regular Forms Creating a Form Class Displaying the Form in a View Creating Templates for the Form Defining URL Patterns for the Form Building and Displaying Model Forms Displaying the Model Form in a View Creating a Template for the Model Form

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Defining URL Patterns for the Model Form Form Validation Built-in Validation Basic Form with Built-in Validation Displaying Validation Errors Custom Validation Custom Field Validation Custom Form-wide Validation Validating Model Forms Custom Validation in Model Forms Using the Validated Model Form Model Forms Overview Creating Model Forms Defining a Model Form Displaying the Model Form in a View Creating a Template for the Model Form Defining URL Patterns for the Model Form Customizing Model Forms Customizing Form Fields Displaying the Customized Model Form Custom Validation Custom Validation for Individual Fields Custom Validation for Multiple Fields Using the Custom Validated Form View for Handling the Custom Validated Form Template for Displaying the Custom Validated Form

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Additional Custom Validation Ensuring Unique Combination of Title and Author Summary Test Your Knowledge Answer: b) By overriding the form’s clean method and checking the combinationChapter 6: User Authentication and Authorization Introduction User Management Django for User Management Setting up User Registration and Authentication Creating the User Registration Form Creating the User Registration View Creating the Registration Template Updating URLs Creating the Login View Creating a Logout View Login, Logout and Password Management Setting up the Login Functionality Creating the Login View Creating the Login Template Configuring the Login Redirect URL Setting up the Logout Functionality Creating the Logout Template