You are previewing Pro Django.

Pro Django

Cover of Pro Django by Marty Alchin Published by Apress
  1. Title Page
  2. Contents at a Glance
  3. Contents
  4. About the Author
  5. Acknowledgments
  6. Preface
  7. Introduction
    1. What This Book Is Not
    2. Who This Book Is For
    3. Interpreting Code Samples
    4. Prerequisites
  8. CHAPTER 1: Understanding Django
    1. Philosophy
    2. Community
    3. Now What?
  9. CHAPTER 2: Django Is Python
    1. How Python Builds Classes
    2. Common Duck-Typing Protocols
    3. Augmenting Functions
    4. Descriptors
    5. Introspection
    6. Applied Techniques
    7. Now What?
  10. CHAPTER 3: Models
    1. How Django Processes Model Classes
    2. Getting Information About Models
    3. Using Model Fields
    4. Subclassing Fields
    5. Dealing with Files
    6. Signals
    7. Applied Techniques
    8. Now What?
  11. CHAPTER 4: URLs and Views
    1. URLs
    2. Views
    3. Applied Techniques
    4. Now What?
  12. CHAPTER 5: Forms
    1. Declaring and Identifying Fields
    2. Binding to User Input
    3. Custom Fields
    4. Defining HTML Behavior
    5. Applied Techniques
    6. Now What?
  13. CHAPTER 6: Templates
    1. What Makes a Template
    2. Context
    3. Retrieving Templates
    4. Adding Features for Templates
    5. Applied Techniques
    6. Now What?
  14. CHAPTER 7: Handling HTTP
    1. Requests and Responses
    2. Writing HTTP Middleware
    3. HTTP-Related Signals
    4. Applied Techniques
    5. Now What?
  15. CHAPTER 8: Backend Protocols
    1. Database Access
    2. Authentication
    3. Files
    4. Session Management
    5. Caching
    6. Template Loading
    7. Context Processors
    8. Applied Techniques
    9. Now What?
  16. CHAPTER 9: Common Tools
    1. Core Exceptions
    2. Text Modification
    3. Data Structures
    4. Functional Utilities
    5. Signals
    6. Now What?
  17. CHAPTER 10: Coordinating Applications
    1. Contacts
    2. Real Estate Properties
    3. Now What?
  18. CHAPTER 11: Enhancing Applications
    1. Recording the Current User
    2. Keeping Historical Records
    3. Now What?
  19. APPENDIX: Contributing to Django
    1. Reporting a Ticket
    2. Supplying a Patch
    3. Writing Tests
    4. Writing Documentation
    5. Development Sprints
    6. Publishing Code
    7. Releasing an Application
  20. Index
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CHAPTER 9Common Tools

While Django aims to provide a foundation for you to build your own Web application, the framework has its own underpinnings that tie it all together. These common tools and features help everything remain consistent and easier to maintain, and those same benefits can be used by your own applications. After all, what's available in Django is available for anything that uses it.

Core Exceptions

While Python comes with its own set of exceptions that can be raised in various situations, Django introduces enough complexity on top of that to merit some more. Since Django serves a specialty audience, these exceptions are considerably more specialized, but they're still usable by more than just core code. Some of these exceptions ...

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