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Rick Martinez's presentation on some useless, but inspiring, ways to extend Rails 3.
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Hardcore!Extending Rails 3
Rick Martinez
Tuesday, June 15, 2010
- Dave Thomas
Tuesday, June 15, 2010
core
Tuesday, June 15, 2010
"when I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck."
Duck Typing
Tuesday, June 15, 2010
Rails 2
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I started exploringalternatives to Rails
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!
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HISS!!!jason seifer
YouTube search: rails vs. django
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December 23rd, 2008
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Tuesday, June 15, 2010
+ =
RAILS 3
Tuesday, June 15, 2010
What makes Rails 3 amazing?
(and why did it take so long?)
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“THE GREAT DECOUPLING”
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Tuesday, June 15, 2010
Core componentsare easily customizable.
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Core componentsare easily replaceable.
OOTuesday, June 15, 2010
LET’S EXPLORESOME RAILS CORE
FOR THE SAKE OF KNOWING!
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THE RAILS STACK
Network
Rack
ActionDispatch
ActionController
ActionView ActiveModel
Railties
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LET’S DOUSELESS THINGS
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Take this code witha grain of salt
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Let’s write a useless DSL for our views.
WRITING A TEMPLATE HANDLER
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WRITING A TEMPLATE HANDLER
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WRITING A TEMPLATE HANDLER
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WHAT ACTION VIEW EXPECTS
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MAKING THE DSL
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my_cool_dsl.rb
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my_cool_handler.rb
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views/hello/index.cool
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http://localhost:3000/hello
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Let’s accept uselessconnections.
WRITING A “TELNET SERVER”
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A simple way.ACT LIKE A RACK SERVER
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TALK LIKE A RACK SERVER
telnet_server.rb
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my_cool_handler.rb
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my_cool_dsl.rb
z
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Tuesday, June 15, 2010
CONSISTENCY!
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hello_controller.rb views/hello/index.cool
via telnet via browser
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DRY!
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Let’s make this uselessness
configurable.WORKING WITH RAILTIES
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WHAT IS A RAILTIE?The interface between the
Rails framework and its components
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WHAT CAN YOUR RAILTIE DO?
• Allow you to accept configuration from application.rb
• Set up initializers in your extension’s context
• Tell Rails about generators and rake tasks
• Build engines, plugins, and applications
Engines, plugins, and applicationsare all subclasses of Railtie inRails 3
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Organized!
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railtie.rb
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lib/super_cool/view_dsl.rb
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config/application.rb
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Results!
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Let’s let others be justas useless.
MAKING THIS ADISTRIBUTABLE FRAMEWORK
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ANATOMY OF OUR GEM
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ANATOMY OF OUR GEM
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package it with the usual tools...
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Tuesday, June 15, 2010
FOOD FOR THOUGHT
IRC bot framework
Modular view systemMUD game framework
Modular enterprise app
A pluggable admin panel
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RESOURCES
http://github.com/rails/railsbundle open railsbundle open actionpackbundle open ... etc ...http://railsapi.com/
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RAILS CODE IS GOOD CODE
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RAILS CODE IS REUSABLE CODE
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And the more use cases you findfor customizing Rails 3 internals,
the better they will be writtenin the future
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Be inspired to look whereyou might’ve not looked before
and learn!
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Thanks!
twitter @digx+
rick.martinez@gmail.com
Tuesday, June 15, 2010
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