peepcode-rails-3-upgrade-handbook-1.pdf

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Rails Upgrade Handbook

1. Introduction

1.1. The Big Picture

1.1.1. Lifecycle changes

1.1.2. Making controllers flexible

1.1.3. Where models are concerned

1.1.4. Other pieces

1.2. That’s great…but why bother?

1.2.1. Performance

1.2.2. New features

1.2.3. Easier segmentation

2. Essentials

2.1. Preliminary steps

2.1.1. Getting the right Ruby

2.1.1.1. Mac OS X or other Unix platforms

2.1.1.2. Windows

2.1.2. Installing Rails 3

2.2. Automating some of the upgrade: rails_upgrade

2.2.1. rails:upgrade:check : Find out what needs to be upgraded

2.2.2. rails:upgrade:routes : Upgrading routes

2.2.3. rails:upgrade:gems : Creating Gemfiles

2.2.4. rails:upgrade:backup : Backing up important files

2.2.5. rails:upgrade:configuration : Generating your new

configuration files

Rails Upgrade Handbook

2.3. Starting an upgrade with the plugin

2.3.1. Run the application checks

2.3.2. Back up important files

2.4. Regenerate the application

3. Getting bootable

3.1. Configuring your app again

3.2. Configuring the environment

3.2.1. Converting your routes file

3.2.2. Setting up the gem bundler

3.3. Code fixes

3.3.1. RAILS_* constants are deprecated

3.3.2. Converting mailers to the new API

3.3.3. New Active Record API

3.4. Minor pre-booting issues

3.4.1. Delete new_rails_defaults.rb

3.4.2. Rack configuration is required

3.5. Booting the application

3.6. It’s booted! Now what…?

3.6.1. Check out your views

3.6.2. Deprecations coming soon

4. Improving your application with Rails 3

4.1. Cleaning up controllers

4.1.1. Responders

4.1.2. Cleaner flash messages

4.2. Creating improved views

4.2.1. Making your views safer

4.2.2. Better JavaScript with Rails 3

Rails Upgrade Handbook

4.3. Building better routes

4.3.1. Routing to Rack applications

4.4. Improving your model logic

4.4.1. Better query composition

4.4.2. Cleaning up your validations

4.4.3. Caching and relations

4.5. Building better data classes

4.6. Exploiting Active Support

4.6.1. Inheriting attributes (the right way)

4.6.2. Cleaning up modules with ActiveSupport::Concern

5. Case Studies

5.1. Application Case Study: Perwikity

5.1.1. Getting to bootable

5.1.2. A few dangling issues

5.1.3. Lessons learned

5.2. Application Case Study: Jamis Buck’s Bucketwise

5.2.1. Broken to bootable

5.2.2. Finishing up

5.2.3. Things to remember

6. Checksheet: The Upgrade Process

6.1. First Steps

6.2. Reconfiguration

6.3. Fix code

6.4. Booting

7. Checksheet: Deprecations

7.1. General/configuration

7.2. Plugins

Rails Upgrade Handbook

7.3. Controllers/dispatch

7.4. Models

7.5. Views

7.6. Testing

7.7. Mailers

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