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Rails AntiPatterns: Best Practice Ruby on Rails Refactoring
- By Chad Pytel, Tammer Saleh
- Published Nov 9, 2010 by Addison-Wesley Professional. Part of the Addison-Wesley Professional Ruby Series series.
- Copyright 2011
- Dimensions: 7" x 9-1/8"
- Pages: 400
- Edition: 1st
- Book
- ISBN-10: 0-321-60481-4
- ISBN-13: 978-0-321-60481-1
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Product Author Bios
Chad Pytel is president of thoughtbot, inc., a software development consulting firm that specializes in agile, test-driven web application development using Ruby on Rails. He coauthored Pro Active Record: Databases with Ruby and Rails (Apress, 2007).
Tammer Saleh is a Ruby on Rails developer who has worked as programmer and system administrator in organizations including the NCSA, Caltech, UIUC, and Citysearch.com. Saleh has spoken at many events, including Railsconf 2007, Scotland on Rails, Mountain West Ruby Conference, and OSCON 2008.
The Complete Guide to Avoiding and Fixing Common Rails 3 Code and Design Problems
As developers worldwide have adopted the powerful Ruby on Rails web framework, many have fallen victim to common mistakes that reduce code quality, performance, reliability, stability, scalability, and maintainability. Rails™ AntiPatterns identifies these widespread Rails code and design problems, explains why they’re bad and why they happen—and shows exactly what to do instead.
The book is organized into concise, modular chapters—each outlines a single common AntiPattern and offers detailed, cookbook-style code solutions that were previously difficult or impossible to find. Leading Rails developers Chad Pytel and Tammer Saleh also offer specific guidance for refactoring existing bad code or design to reflect sound object-oriented principles and established Rails best practices. With their help, developers, architects, and testers can dramatically improve new and existing applications, avoid future problems, and establish superior Rails coding standards throughout their organizations.
This book will help you understand, avoid, and solve problems with
- Model layer code, from general object-oriented programming violations to complex SQL and excessive redundancy
- Domain modeling, including schema and database issues such as normalization and serialization
- View layer tools and conventions
- Controller-layer code, including RESTful code
- Service-related APIs, including timeouts, exceptions, backgrounding, and response codes
- Third-party code, including plug-ins and gems
- Testing, from test suites to test-driven development processes
- Scaling and deployment
- Database issues, including migrations and validations
- System design for “graceful degradation” in the real world
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16 of 16 people found the following review helpful
Finally, a Rails book worth reading!!!,
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This review is from: Rails AntiPatterns: Best Practice Ruby on Rails Refactoring (Addison-Wesley Professional Ruby Series) (Paperback)
I'll be honest, prior to reading this book I was starting to lose faith in Ruby on Rails authors. As a beginner to Rails, I've read a number of books to try and make sense of all the black magic going on behind the scenes as well as how to write great code in Rails. Many of those books were either "paint by number" tutorials where you didn't really learn anything appreciable or very complete (and hard to comprehend) reference manuals for everything there is to possibly know about Rails.I just needed a good in between book! This book not only exposes you to the Rails Way of writing code in Ruby on Rails, it also gives many of the opposing examples which I would more than likely stumble down not knowing any better. Not only that, but this is one of the most logically organized books I have ever had the pleasure to read. Everything flows together very nicely and is very understandable for beginners let alone more advanced users. I would recommend... Read more
7 of 7 people found the following review helpful
Fantastic source of refactoring ideas,
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This review is from: Rails AntiPatterns: Best Practice Ruby on Rails Refactoring (Addison-Wesley Professional Ruby Series) (Paperback)
This book makes a great companion to Martin Fowler's Refactoring book (or the Ruby version of it by Jay Fields). As someone who's still accumulating the theoretical 10,000 hours of experience it takes to master something (Ruby/Rails), it's nice to have guides like Chad and Tammer there to suggest improvements to my technique. Highly recommended for anyone novice or intermediate Rails developer.
5 of 5 people found the following review helpful
A more useful way to teach design patterns, By Armando Fox "Computer science professor, thea... (San Francisco, USA) - See all my reviews
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This review is from: Rails AntiPatterns: Best Practice Ruby on Rails Refactoring (Addison-Wesley Professional Ruby Series) (Paperback)
All too often, the 'patterns' books only develop a greenfield example the 'right' way. This is hopelessly optimistic, especially if (as is the case for me) you're teaching undergraduates how to use design patterns; they're not going to get it right the first time. So *refactoring* code that has "grown bad" to use a good pattern is a much more frequently needed skill.There are other books on refactoring for Ruby, like Martin's, but i like that this one focuses on design patterns and specifically on how to leverage Ruby's features to realize the patterns nicely. My future coverage of design patterns in Berkeley's undergraduate software engineering class will be motivated by the examples in this book. |
Online Sample Chapter
Best Practice Ruby on Rails Refactoring: Databases
Table of Contents
Foreword xi
Introduction xiii
Acknowledgments xvii
About the Authors xix
Chapter 1: Models 1
AntiPattern: Voyeuristic Models 2
AntiPattern: Fat Models 14
AntiPattern: Spaghetti SQL 31
AntiPattern: Duplicate Code Duplication 50
Chapter 2: Domain Modeling 73
AntiPattern: Authorization Astronaut 74
AntiPattern: The Million-Model March 79
Chapter 3: Views 89
AntiPattern: PHPitis 91
AntiPattern: Markup Mayhem 107
Chapter 4: Controllers 117
AntiPattern: Homemade Keys 118
AntiPattern: Fat Controller 123
AntiPattern: Bloated Sessions 154
AntiPattern: Monolithic Controllers 161
AntiPattern: Controller of Many Faces 167
AntiPattern: A Lost Child Controller 170
AntiPattern: Rat’s Nest Resources 180
AntiPattern: Evil Twin Controllers 184
Chapter 5: Services 189
AntiPattern: Fire and Forget 190
AntiPattern: Sluggish Services 195
AntiPattern: Pitiful Page Parsing 197
AntiPattern: Successful Failure 201
AntiPattern: Kraken Code Base 207
Chapter 6: Using Third-Party Code 211
AntiPattern: Recutting the Gem 213
AntiPattern: Amateur Gemologist 214
AntiPattern: Vendor Junk Drawer 216
AntiPattern: Miscreant Modification 217
Chapter 7: Testing 221
AntiPattern: Fixture Blues 223
AntiPattern: Lost in Isolation 236
AntiPattern: Mock Suffocation 240
AntiPattern: Untested Rake 246
AntiPattern: Unprotected Jewels 251
Chapter 8: Scaling and Deploying 267
AntiPattern: Scaling Roadblocks 268
AntiPattern: Disappearing Assets 271
AntiPattern: Sluggish SQL 272
AntiPattern: Painful Performance 282
Chapter 9: Databases 291
AntiPattern: Messy Migrations 292
AntiPattern: Wet Validations 297
Chapter 10: Building for Failure 301
AntiPattern: Continual Catastrophe 302
AntiPattern: Inaudible Failures 306
Index 311
Sample Pages
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