Web Development with Django

Cover
FM
Copyright
Table of Contents
Preface
Chapter 1: Introduction to Django
	Introduction
	Scaffolding a Django Project and App
		Exercise 1.01: Creating a Project and App, and Starting the Dev Server
	Model View Template
		Models
		Views
		Templates
			MVT in Practice
		Introduction to HTTP
		Processing a Request
		Django Project
			The myproject Directory
			Django Development Server
		Django Apps
		PyCharm Setup
		Exercise 1.02: Project Setup in PyCharm
		View Details
		URL Mapping Detail
		Exercise 1.03: Writing a View and Mapping a URL to It
		GET, POST, and QueryDict Objects
		Exercise 1.04: Exploring GET Values and QueryDict
		Exploring Django Settings
			Using Settings in Your Code
		Finding HTML Templates in App Directories
		Exercise 1.05: Creating a Templates Directory and a Base Template
		Rendering a Template with the render Function
		Exercise 1.06: Rendering a Template in a View
		Rendering Variables in Templates
		Exercise 1.07: Using Variables in Templates
		Debugging and Dealing with Errors
		Exceptions
		Exercise 1.08: Generating and Viewing Exceptions
		Debugging
		Exercise 1.09: Debugging Your Code
		Activity 1.01: Creating a Site Welcome Screen
		Activity 1.02: Book Search Scaffold
	Summary
Chapter 2: Models and Migrations
	Introduction
	Databases
		Relational Databases
		Non-Relational Databases
		Database Operations Using SQL
		Data Types in Relational databases
		Exercise 2.01: Creating a Book Database
	SQL CRUD Operations
		SQL Create Operations
		SQL Read Operations
		SQL Update Operations
		SQL Delete Operations
		Django ORM
		Database Configuration and Creating Django Applications
		Django Apps
		Django Migration
		Creating Django Models and Migrations
		Field Types
		Field Options
		Primary Keys
	Relationships
		Many to One
	Many to Many
		One-to-One Relationships
		Adding the Review Model
		Model Methods
		Migrating the Reviews App
	Django’s Database CRUD Operations
		Exercise 2.02: Creating an Entry in the Bookr Database
		Exercise 2.03: Using the create() Method to Create an Entry
		Creating an Object with a Foreign Key
		Exercise 2.04: Creating Records for a Many-to-One Relationship
		Exercise 2.05: Creating Records with Many-to-Many Relationships
		Exercise 2.06: A Many-to-Many Relationship Using the add() Method
		Using create() and set() Methods for Many-to-Many Relationships
		Read Operations
		Exercise 2.07: Using the get() Method to Retrieve an Object
		Returning an Object Using the get() Method
		Exercise 2.08: Using the all() Method to Retrieve a Set of Objects
		Retrieving Objects by Filtering
		Exercise 2.09: Using the filter() Method to Retrieve Objects
		Filtering by Field Lookups
		Using Pattern Matching for Filtering Operations
		Retrieving Objects by Excluding
		Retrieving Objects Using the order_by() Method
		Querying Across Relationships
		Querying Using Foreign Keys
		Querying Using Model Name
		Querying Across Foreign Key Relationships Using the Object Instance
		Exercise 2.10: Querying Across a Many-to-Many Relationship Using Field Lookup
		Exercise 2.11: A Many-to-Many Query Using Objects
		Exercise 2.12: A Many-to-Many Query Using the set() Method
		Exercise 2.13: Using the update() Method
		Exercise 2.14: Using the delete() Method
		Activity 2.01: Create Models for a Project Management Application
		Populating the Bookr Project’s Database
	Summary
Chapter 3: URL Mapping, Views, and Templates
	Introduction
	Function-Based Views
	Class-Based Views
	URL Configuration
		Exercise 3.01: Implementing a Simple Function-Based View
	Templates
		Exercise 3.02: Using Templates to Display a Greeting Message
	Django Template Language
		Template Variables
			Template Tags
			Comments
			Filters
		Exercise 3.03: Displaying a List of Books and Reviews
		Template Inheritance
		Template Styling with Bootstrap
		Exercise 3.04: Adding Template Inheritance and a Bootstrap Navigation Bar
		Activity 3.01: Implement the Book Details View
	Summary
Chapter 4: Introduction to Django Admin
	Introduction
	Creating a Superuser Account
		Exercise 4.01: Creating a Superuser Account
	CRUD Operations Using the Django Admin App
		Create
		Retrieve
		Update
		Delete
		Users and Groups
		Exercise 4.02: Adding and Modifying Users and Groups through the Admin app
	Registering the Reviews Model
		Change Lists
		The Publisher Change Page
		The Book Change Page
		Exercise 4.03: Foreign Keys and Deletion Behavior in the Admin App
	Customizing the Admin Interface
		Site-Wide Django Admin Customizations
		Examining the AdminSite object from the Python Shell
			Subclassing AdminSite
		Activity 4.01: Customizing the SiteAdmin
		Customizing the ModelAdmin Classes
			The List Display Fields
			The Filter
		Exercise 4.04: Adding a Date list_filter and date_hierarchy
		The Search Bar
		Excluding and Grouping Fields
		Activity 4.02: Customizing the Model Admins
	Summary
Chapter 5: Serving Static Files
	Introduction
	Static File Serving
		Introduction to Static File Finders
		Static File Finders: Use During a Request
		AppDirectoriesFinder
		Static File Namespacing
		Exercise 5.01: Serving a File from an App Directory
		Generating Static URLs with the static Template Tag
		Exercise 5.02: Using the static Template Tag
		FileSystemFinder
		Exercise 5.03: Serving from a Project static Directory
		Static File Finders: Use During collectstatic
		Exercise 5.04: Collecting Static Files for Production
		STATICFILES_DIRS Prefixed Mode
		The findstatic Command
		Exercise 5.05: Finding Files Using findstatic
		Serving the Latest Files (for Cache Invalidation)
		Exercise 5.06: Exploring the ManifestFilesStorage Storage Engine
		Custom Storage Engines
		Activity 5.01: Adding a reviews Logo
		Activity 5.02: CSS Enhancements
		Activity 5.03: Adding a Global Logo
	Summary
Chapter 6: Forms
	Introduction
	What Is a Form?
		The 
 Element
		Types of Inputs
		Exercise 6.01: Building a Form in HTML
		Form Security with Cross-Site Request Forgery Protection
		Accessing Data in the View
		Exercise 6.02: Working with POST Data in a View
		Choosing between GET and POST
		Why Use GET When We Can Put Parameters in the URL?
	The Django Forms Library
		Defining a Form
		Rendering a Form in a Template
		Exercise 6.03: Building and Rendering a Django Form
	Validating Forms and Retrieving Python Values
		Exercise 6.04: Validating Forms in a View
		Built-In Field Validation
		Exercise 6.05: Adding Extra Field Validation
		Activity 6.01: Book Searching
	Summary
Chapter 7: Advanced Form Validation and Model Forms
	Introduction
	Custom Field Validation and Cleaning
		Custom Validators
		Cleaning Methods
		Multi-Field Validation
		Exercise 7.01: Custom Clean and Validation Methods
		Placeholders and Initial Values
		Exercise 7.02: Placeholders and Initial Values
		Creating or Editing Django Models
		The ModelForm Class
		Exercise 7.03: Creating and Editing a Publisher
		Activity 7.01: Styling and Integrating the Publisher Form
		Activity 7.02: Review Creation UI
	Summary
Chapter 8: Media Serving and File Uploads
	Introduction
	Settings for Media Uploads and Serving
		Serving Media Files in Development
		Exercise 8.01: Configuring Media Storage and Serving Media Files
	Context Processors and Using MEDIA_URL in Templates
		Exercise 8.02: Template Settings and Using MEDIA_URL in Templates
	File Uploads Using HTML Forms
		Working with Uploaded Files in a View
			Security and Trust of Browsers' Sent Values
		Exercise 8.03: File Upload and Download
		File Uploads with Django Forms
		Exercise 8.04: File Uploads with a Django Form
		Image Uploads with Django Forms
		Resizing an Image with Pillow
		Exercise 8.05: Image Uploads using Django Forms
		Serving Uploaded (and Other) Files Using Django
	Storing Files on Model Instances
		Storing Images on Model Instances
		Working with FieldFile
			Custom Storage Engines
			Reading a Stored FieldFile
			Storing Existing Files or Content in FileField
			Writing PIL Images to ImageField
		Referring to Media in Templates
		Exercise 8.06: FileField and ImageField on Models
		ModelForms and File Uploads
		Exercise 8.07: File and Image Uploads Using a ModelForm
		Activity 8.01: Image and PDF Uploads of Books
		Activity 8.02: Displaying Cover and Sample Links
	Summary
Chapter 9: Sessions and Authentication
	Introduction
	Middleware
		Middleware Modules
		Implementing Authentication Views and Templates
		Exercise 9.01: Repurposing the Admin App Login Template
		Password Storage in Django
		The Profile Page and the request.user Object
		Exercise 9.02: Adding a Profile Page
		Authentication Decorators and Redirection
		Exercise 9.03: Adding Authentication Decorators to the Views
		Enhancing Templates with Authentication Data
		Exercise 9.04: Toggling Login and Logout Links in the Base Template
		Activity 9.01: Authentication-Based Content Using Conditional Blocks in Templates
	Sessions
		The Session Engine
			Do You Need to Flag Cookie Content?
		Pickle or JSON storage
		Exercise 9.05: Examining the Session Key
		Storing Data in Sessions
		Exercise 9.06: Storing Recently Viewed Books in Sessions
		Activity 9.02: Using Session Storage for the Book Search Page
	Summary
Chapter 10: Advanced Django Admin and Customizations
	Introduction
	Customizing the Admin Site
		Discovering Admin Files in Django
		Django's AdminSite Class
		Exercise 10.01: Creating a Custom Admin Site for Bookr
		Overriding the Default admin.site
		Exercise 10.02: Overriding the Default Admin Site
		Customizing Admin Site Text Using AdminSite Attributes
		Customizing Admin Site Templates
		Exercise 10.03: Customizing the Logout Template for the Bookr Admin Site
	Adding Views to the Admin Site
		Creating the View Function
		Accessing Common Template Variables
		Mapping URLs for the Custom View
		Restricting Custom Views to the Admin Site
		Exercise 10.04: Adding Custom Views to the Admin Site
		Passing Additional Keys to the Templates Using Template Variables
		Activity 10.01: Building a Custom Admin Dashboard with Built-In Search
	Summary
Chapter 11: Advanced Templating and Class-Based Views
	Introduction
	Template Filters
	Custom Template Filters
		Template Filters
		Setting Up the Directory for Storing Template Filters
		Setting Up the Template Library
		Implementing the Custom Filter Function
		Using Custom Filters inside Templates
		Exercise 11.01: Creating a Custom Template Filter
		String Filters
	Template Tags
		Types of Template Tags
		Simple Tags
		How to Create a Simple Template Tag
			Setting Up the Directory
			Setting Up the Template Library
			Implementing a Simple Template Tag
			Using Simple Tags inside Templates
		Exercise 11.02: Creating a Custom Simple Tag
			Passing the Template Context in a Custom Template Tag
		Inclusion Tags
			Implementing Inclusion Tags
			Using an Inclusion Tag inside a Template
		Exercise 11.03: Building a Custom Inclusion Tag
	Django Views
	Class-Based Views
		Exercise 11.04: Creating a Book Catalog Using a CBV
		CRUD Operations with CBVs
			Create View
		Update View
			Delete View
		Read View
		Activity 11.01: Rendering Details on the User Profile Page Using Inclusion Tags
	Summary
Chapter 12: Building a REST API
	Introduction
	REST APIs
		Django REST Framework
		Installation and Configuration
		Functional API Views
		Exercise 12.01: Creating a Simple REST API
	Serializers
		Exercise 12.02: Creating an API View to Display a List of Books
		Class-Based API Views and Generic Views
		Model Serializers
		Exercise 12.03: Creating Class-Based API Views and Model Serializers
		Activity 12.01: Creating an API Endpoint for a Top Contributors Page
	ViewSets
	Routers
		Exercise 12.04: Using ViewSets and Routers
	Authentication
		Token-Based Authentication
		Exercise 12.05: Implementing Token-Based Authentication for Bookr APIs
	Summary
Chapter 13: Generating CSV, PDF, and Other Binary Files
	Introduction
		Working with CSV Files inside Python
	Working with Python's CSV Module
		Reading Data from a CSV File
		Exercise 13.01: Reading a CSV File with Python
		Writing to CSV Files Using Python
		Exercise 13.02: Generating a CSV File Using Python's csv Module
		A Better Way to Read and Write CSV Files
	Working with Excel Files in Python
		Binary File Formats for Data Exports
		Working with XLSX Files Using the XlsxWriter Package
			XLSX Files
			The XlsxWriter Python Package
			Creating a Workbook
			Creating a Worksheet
			Writing Data to the Worksheet
			Writing the Data to the Workbook
		Exercise 13.03: Creating XLSX Files in Python
	Working with PDF Files in Python
		Converting Web Pages to PDFs
		Exercise 13.04: Generating a PDF Version of a Web Page in Python
	Playing with Graphs in Python
		Generating Graphs with plotly
			Setting Up a Figure
			Generating a Plot
			Rendering a Plot on a Web Page
		Exercise 13.05: Generating Graphs in Python
		Integrating plotly with Django
	Integrating Visualizations with Django
		Exercise 13.06: Visualizing a User's Reading History on the User Profile Page
		Activity 13.01: Exporting the Books Read by a User as an XLSLX File
	Summary
Chapter 14: Testing
	Introduction
	The Importance of Testing
	Automation Testing
	Testing in Django
		Implementing Test Cases
		Unit Testing in Django
		Utilizing Assertions
		Exercise 14.01: Writing a Simple Unit Test
			Types of Assertions
		Performing Pre-Test Setup and Cleanup after Every Test Case Run
	Testing Django Models
		Exercise 14.02: Testing Django Models
	Testing Django Views
		Exercise 14.03: Writing Unit Tests for Django Views
		Testing Views with Authentication
		Exercise 14.04: Writing Test Cases to Validate Authenticated Users
	Django Request Factory
		Exercise 14.05: Using a Request Factory to Test Views
		Testing Class-Based Views
	Test Case Classes in Django
		SimpleTestCase
		TransactionTestCase
		LiveServerTestCase
		Modularizing Test Code
		Activity 14.01: Testing Models and Views in Bookr
	Summary
Chapter 15: Django Third-Party Libraries
	Introduction
		Environment Variables
		django-configurations
		manage.py changes
		Configuration from Environment Variables
		Exercise 15.01: Django Configurations Setup
		dj-database-url
		Exercise 15.02: dj-database-url and Setup
		The Django Debug Toolbar
		Exercise 15.03: Setting Up the Django Debug Toolbar
	django-crispy-forms
		The crispy Filter
		The crispy Template Tag
		Exercise 15.04: Using Django Crispy Forms with the SearchForm
		django-allauth
			django-allauth Installation and Setup
			GitHub Auth Setup
			Google Auth Setup
		Initiating Authentication with django-allauth
			Other django-allauth Features
		Activity 15.01: Using FormHelper to Update Forms
	Summary
Chapter 16: Using a Frontend JavaScript Library with Django
	Introduction
	JavaScript Frameworks
	JavaScript Introduction
		React
		Components
		Exercise 16.01: Setting Up a React Example
		JSX
		Exercise 16.02: JSX and Babel
		JSX Properties
		Exercise 16.03: React Component Properties
		JavaScript Promises
		fetch
			The JavaScript map Method
		Exercise 16.04: Fetching and Rendering Books
		The verbatim Template Tag
		Activity 16.01: Reviews Preview
	Summary
Index