Django Unleashed

Series
Sams
Author
Andrew Pinkham  
Publisher
Sams Publishing
Cover
Softcover
Edition
1
Language
English
Total pages
750
Pub.-date
November 2015
ISBN13
9780321985071
ISBN
0321985079
Related Titles


Product detail

Product Price CHF Available  
9780321985071
Django Unleashed
55.90 approx. 7-9 days

Description

Django is an amazingly powerful system for deploying websites and managing content of all kinds. But programming Django hasn't always been easy -- until now. Django Unleashed is a step-by-step, beginner-friendly guide to leveraging Django's core capabilities and its powerful contributed library. It teaches readers to build a complete Django website, hands-on. This book reveals how Django works, how to write Python code that leverages Django's immense capabilities, and how to apply powerful web patterns to build solutions that are robust, reliable, and secure.

Features

  • Teaches Django's core features and contributed library by programming, securing, and deploying a full-featured website
  • Covesrs Models, Managers, Views, URL Patterns, and Templates
  • Shows common web patterns students can utilize with virtually any content management framework

Table of Contents

Preface    xiii

Acknowledgments    xvii

About the Author    xix

 

Part I: Django’s Core Features    1

Chapter 1: Starting a New Django Project: Building a Startup Categorizer with Blog    3

1.1 Introduction  3

1.2 Website Basics  4

1.3 Understanding Modern Websites  5

1.4 Building Modern Websites: The Problems That Frameworks Solve and Their Caveats   6

1.5 Django: Python Web Framework   8

1.6 Defining the Project in Part I 11

1.7 Creating a New Django Project and Django Apps   13

1.8 Putting It All Together   21

 

Chapter 2: Hello World: Building a Basic Webpage in Django 23

2.1 Introduction   23

2.2 Creating and Integrating a New App   24

2.3 Building Hello World   25

2.4 Displaying Hello World   26

2.5 Controller Limitations: The Advantages of Models and Views   27

2.6 Removing Our Helloworld App from Our Project   27

2.7 Putting It All Together   29

 

Chapter 3: Programming Django Models and Creating a SQLite Database    31

3.1 Introduction   31

3.2 Why Use a Database?   32

3.3 Organizing Our Data   32

3.4 Specifying and Organizing Data in Django Using Models   36

3.5 Using Django to Automatically Create a SQLite Database with manage.py   49

3.6 Manipulating Data in the Database: Managers and QuerySets   56

3.7 String Case Ordering   68

3.8 Putting It All Together   71

 

Chapter 4: Rapidly Producing Flexible HTML with Django Templates    73

4.1 Introduction   73

4.2 Revisiting Hello World: The Advantages of Templates   74

4.3 Understanding Django Templates and Their Goals   77

4.4 Choosing a Format, an Engine, and a Location for Templates   77

4.5 Building a First Template: A Single Tag Object   78

4.6 Building the Rest of Our App Templates   90

4.7 Using Template Inheritance for Design Consistency   102

4.8 Using Templates in Python with the Template, Context, and loader Classes   112

4.9 Putting It All Together   118

 

Chapter 5: Creating Webpages with Controllers in Django: Views and URL Configurations    121

5.1    Introduction   121

5.2 The Purpose of Views and URL Configurations   122

5.3 Step-by-Step Examination of Django’s Use of Views and URL Configurations   126

5.4 Building Tag Detail Webpage   128

5.5 Generating 404 Errors for Invalid Queries   132

5.6 Shortening the Development Process with Django View Shortcuts   135

5.7 URL Configuration Internals: Adhering to App Encapsulation   143

5.8 Implementing the Views and URL Configurations to the Rest of the Site   148

5.9 Class-Based Views   155

5.10 Redirecting the Homepage   163

5.11 Putting It All Together   166

 

Chapter 6: Integrating Models, Templates, Views, and URL Configurations to Create Links between Webpages    169

6.1 Introduction   169

6.2 Generating URLs in Python and Django Templates   170

6.3 Using the url Template Tag to Build a Navigation Menu   175

6.4 Linking List Pages to Detail Pages   177

6.5 Creating Links on the Object Detail Pages   184

6.6 Revisiting Homepage Redirection   186

6.7 Putting It All Together   187

 

Chapter 7: Allowing User Input with Forms   189

7.1 Introduction   189

7.2 Django Forms as State Machines   190

7.3 Creating TagForm, a Form for Tag Objects   190

7.4 Building the Forms for Startup, Newslink, and Post Models   206

7.5 Putting It All Together   210

 

Chapter 8: Displaying Forms in Templates    211

8.1 Introduction   211

8.2 Creating a New Template to Create Tag Objects   211

8.3 Creating a New Template to Update Tag Objects   224

8.4 Creating a New Template to Delete Tag Objects   226

8.5 Creating Templates for StartupForm, NewsLinkForm, and PostForm   227

8.6 Reconsidering Template Inheritance   229

8.7 Putting It All Together   231

 

Chapter 9: Controlling Forms in Views   233

9.1 Introduction   233

9.2 Webpages for Creating Objects   233

9.3 Webpages for Updating Objects   256

9.4 Webpages for Deleting Objects   268

9.5 Putting It All Together   276

 

Chapter 10: Revisiting Migrations 279

10.1 Introduction   279

10.2 Last Week’s Episode (Reviewing Chapter 3)   279

10.3 Data Migrations   280

10.4 Schema Migrations   288

10.5 Putting It All Together  296

 

Chapter 11: Bending the Rules: The Contact Us Webpage    299

11.1 Introduction   299

11.2 Creating a contact App   300

11.3 Creating the Contact Webpage   301

11.4 Splitting Organizer urls.py   308

11.5 Putting It All Together   310

 

Chapter 12: The Big Picture 313

12.1 Introduction   313

12.2 Django’s Core   313

12.3 Webpages with Views and URL Configurations   316

12.4 Generating Webpages Thanks to Models and Templates   317

12.5 Interacting with Data via Forms   318

12.6 Intervening in Control Flow   319

12.7 Moving Forward   319

 

Part II: Djangos Contributed Libraries    321

Chapter 13: Django’s Contributed Library    323

13.1 Introduction   323

13.2 Django’s Source Code (and Versioning)   323

13.3 Django’s contrib Code   325

13.4 Content (Not) Covered   327

13.5 Translation   328

13.6 Putting It All Together   329

 

Chapter 14: Pagination: A Tool for Navigation 331

14.1 Introduction   331

14.2 A Word about URLs: Query versus Path   332

14.3 Discovering Django Pagination in the Shell   333

14.4 Paginating the Startup List Webpage   337

14.5 Pagination of Tag List Webpage Using the URL Path   345

14.6 Putting It All Together   351

 

Chapter 15: Creating Webpages with Django Flatpages    353

15.1 Introduction   353

15.2 Enabling Flatpages   353

15.3 Anatomy of the App   355

15.4 Building an About Webpage   355

15.5 Linking to FlatPage Objects   363

15.6 Security Implications of FlatPages   363

15.7 Migrations for Sites and Flatpages   365

15.8 Putting It All Together   371

 

Chapter 16: Serving Static Content with Django    373

16.1 Introduction   373

16.2 Adding Static Content for Apps   374

16.3 Adding Static Content for the Project   376

16.4 Integrating Real CSS Content   377

16.5 Putting It All Together   381

 

Chapter 17: Understanding Generic Class-Based Views    383

17.1 Introduction   383

17.2 Building Generic Object Detail Pages   384

17.3 Why Use Classes for Generic Views?   393

17.4 Building Generic Object Create Pages   394

17.5 Replacing CBVs with GCBVs   395

17.6 Forgoing GCBVs   400

17.7 Adding Behavior with GCBV   401

17.8 Putting It All Together   416

 

Chapter 18: Advanced Generic Class-Based View Usage    417

18.1 Introduction   417

18.2 Rapid Review of GCBV   418

18.3 Globally Setting Template Suffix for Update Views   419

18.4 Generating Pagination Links   419

18.5 Re-creating PostDetail with DateDetailView   426

18.6 Switching to GCBVs with PostGetMixin in Post Views   429

18.7 Making PostGetMixin Generic   432

18.8 Fixing NewsLink URL Patterns and Form Behavior   438

18.9 Putting It All Together   449

 

Chapter 19: Basic Authentication    451

19.1 Introduction   451

19.2 Configuring Logging   452

19.3 Sessions and Cookies   456

19.4 auth App Anatomy: The Basics   457

19.5 Adding Login and Logout Features   458

19.6 Putting It All Together   472

 

Chapter 20: Integrating Permissions    473

20.1 Introduction   473

20.2 Understanding contenttypes and Generic Relations   473

20.3 auth App Anatomy: Permission and Group Models   476

20.4 Protecting Views with Permissions   483

20.5 Conditionally Displaying Template Links   496

20.6 Displaying Future Posts in the Template  497

20.7 Putting It All Together   500

 

Chapter 21: Extending Authentication    501

21.1 Introduction   501

21.2 auth App Anatomy: Password Views   501

21.3 Changing Passwords   503

21.4 Resetting Passwords   506

21.5 Disabling Accounts   513

21.6 Creating Accounts   517

21.7 URL Cleanup   544

21.8 Anatomy of the App: Full Dissection   545

21.9 Putting It All Together   547

 

Chapter 22: Overriding Django’s Authentication with a Custom User   549

22.1 Introduction   549

22.2 Creating a User Profile   550

22.3 Custom User   558

22.4 Data Migrations  568

22.5 Adding an Author to Blog Posts   572

22.6 Putting It All Together   576

 

Chapter 23: The Admin Library   577

23.1 Introduction   577

23.2 A First Look   577

23.3 Modifying the Admin Controls for Blog Posts   581

23.4 Configuring the Admin for the User Model   593

23.5 Creating Admin Actions   616

23.6 Putting It All Together   618

 

Part III: Advanced Core Features    619

Chapter 24: Creating Custom Managers and Querysets    621

24.1 Introduction to Part III 621

24.2 Introduction to Chapter 24    621

24.3 Custom Managers and Querysets   622

24.4 Fixtures   624

24.5 Management Commands   627

24.6 Putting It All Together   648

 

Chapter 25: Handling Behavior with Signals    649

25.1 Introduction   649

25.2 Apps and AppConfig   650

25.3 Signals   652

25.4 Putting It All Together   660

 

Chapter 26: Optimizing Our Site for Speed    661

26.1 Introduction   661

26.2 Profiling   662

26.3 Limiting Database Queries   663

26.4 Changing Database Behavior Internally   679

26.5 Changing Performance Globally   681

26.6 Putting It All Together   685

 

Chapter 27: Building Custom Template Tags    687

27.1 Introduction   687

27.2 Custom Template Filters   688

27.3 Custom Template Tags   690

27.4 Putting It All Together   706

 

Chapter 28: Adding RSS and Atom Feeds and a Sitemap    707

28.1 Introduction   707

28.2 RSS and Atom Feeds   707

28.3 Sitemaps   715

28.4 Putting It All Together   724

 

Chapter 29: Deploy!    725

29.1 Introduction: Understanding Modern Deployments   725

29.2 Preparing for Deployment   726

29.3 Deploying to Heroku   738

29.4 Adding Backing Services   741

29.5 Putting It All Together   748

 

Chapter 30: Starting a New Project Correctly 749

30.1 Introduction   749

30.2 Preparing a Project   749

30.3 Building the Project   752

30.4 The Road Ahead   754

 

Part IV: Appendixes    755

Appendix A: HTTP    757

 

Appendix B: Python Primer    761

 

Appendix C: Relational Database Basics    765

 

Appendix D: Security Basics    769

 

Appendix E: Regular Expressions    771

 

Appendix F: Compilation Basics    773

 

Appendix G: Installing Python, Django, and Your Tools    775

 

Index   779

 

Author

Andrew Pinkham is a software engineer and owner of JamBon Software, which specializes in web and mobile products and also offers Python and Django training. He prides himself on being an engineer who can communicate complex ideas in simple ways, and is passionate about security and distributed systems. In his free time, Andrew writes fiction and swims. A 2009 graduate of Dartmouth College, he can be found online at afrg.co.