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Ruby on Rails Peak IT, 17 September 2008

Ruby on Rails Introduction

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Page 1: Ruby on Rails Introduction

Ruby on RailsPeak IT, 17 September 2008

Page 2: Ruby on Rails Introduction

Joost Hietbrink?www.linkedin.com/in/joosthietbrink

http://www.linkedin.com/in/joosthietbrink
http://www.linkedin.com/in/joosthietbrink
Page 3: Ruby on Rails Introduction

www.yelloyello.com

http://www.yelloyello.com
http://www.yelloyello.com
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source: http://en.wikipedia.org/wiki/Ruby_(programming_language)

http://en.wikipedia.org/wiki/Ruby_(programming_language
http://en.wikipedia.org/wiki/Ruby_(programming_language
Page 8: Ruby on Rails Introduction

• Birthday: 24 February 1993

• v1.0: 25 December 1996

• “more powerful than Perl, and more OO than Python”

• 99.9% Object Oriented

Page 9: Ruby on Rails Introduction

Yukihiro ‘Matz’ Matsumoto, creator of Ruby.

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try ruby! (in your browser)http://tryruby.hobix.com/

http://tryruby.hobix.com
http://tryruby.hobix.com
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• Birth: July 2004

• Shipped with OSX Leopard

• Latest: 2.1.1: 4 September 2008

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David ‘dhh’ Heinemeier Hansson

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Ruby on Rails vs.JavaPHP.NET

ColdFusionDjango

...

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Websites on Rails

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Companies using Rails

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The Framework

source: http://flickr.com/photos/charlesbodi/236037049/

http://flickr.com/photos/charlesbodi/236037049/
http://flickr.com/photos/charlesbodi/236037049/
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• Convention over Configuration

• Agile Programming principle

• DRY

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app controllers helpers models viewsconfig environments initializersdbdoclib taskslogpublic images javascripts stylesheetsscript performance processtest fixtures functional integration unit...

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ModelView

Controller

Framework (MVC)

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Modelssource: http://flickr.com/photos/74982136@N00/252447564

http://flickr.com/photos/74982136@N00/252447564
http://flickr.com/photos/74982136@N00/252447564
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ActiveRecord

source: http://media.rubyonrails.org/presentations/pursuitofbeauty.pdf

http://media.rubyonrails.org/presentations/pursuitofbeauty.pdf
http://media.rubyonrails.org/presentations/pursuitofbeauty.pdf
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Fat Models

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ActionControllersource: http://flickr.com/photos/sameli/261307204/

http://flickr.com/photos/sameli/261307204/
http://flickr.com/photos/sameli/261307204/
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RESTfulResources

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HTTP verb Controller Action

CRUD Action URL

GET show READ /products/1/products/1.xml

POST create CREATE /products

PUT update UPDATE /products/1

DELETE destroy DESTROY /products/1

GET new /products/new

GET index /products

GET edit /products/1/edit

source: http://rubyenrails.nl/articles/2006/11/02/restful-rails

http://rubyenrails.nl/articles/2006/11/02/restful-rails
http://rubyenrails.nl/articles/2006/11/02/restful-rails
Page 42: Ruby on Rails Introduction

ActionViewsource: http://flickr.com/photos/bocavermelha/66759796/

http://flickr.com/photos/bocavermelha/66759796/
http://flickr.com/photos/bocavermelha/66759796/
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action.mimetype.renderer

show.html.erbindex.rss.builderedit.iphone.haml

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Generateinstead of

Create

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DRY vs. DRO

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source: http://media.rubyonrails.org/video/rails_take2_with_sound.mov

http://media.rubyonrails.org/video/rails_take2_with_sound.mov
http://media.rubyonrails.org/video/rails_take2_with_sound.mov
Page 48: Ruby on Rails Introduction

Demo?!

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?

Joost HietbrinkJoopp (joopp.com/blog.joopp.com)

[email protected] 14 89 65 41

mailto:[email protected]
mailto:[email protected]
Page 50: Ruby on Rails Introduction

More info

• rubyonrails.org

• railscasts.com

• peepcode.com

• rubyenrails.nl

• slideshare.net:

• http://www.slideshare.net/mattb/coding-on-the-shoulders-of-giants

http://www.slideshare.net/mattb/coding-on-the-shoulders-of-giants
http://www.slideshare.net/mattb/coding-on-the-shoulders-of-giants
Page 51: Ruby on Rails Introduction

Other interesting stuff..

• http://www.slideshare.net/daveman692/supporting-the-open-web-oscon-2008

• http://microformats.org/

• http://www.dataportability.org/

• http://git.or.cz/

http://www.slideshare.net/daveman692/supporting-the-open-web-oscon-2008
http://www.slideshare.net/daveman692/supporting-the-open-web-oscon-2008
http://www.slideshare.net/daveman692/supporting-the-open-web-oscon-2008
http://www.slideshare.net/daveman692/supporting-the-open-web-oscon-2008
http://microformats.org
http://microformats.org
http://www.dataportability.org
http://www.dataportability.org
http://git.or.cz
http://git.or.cz
Page 52: Ruby on Rails Introduction

How to create aMP3 Playing Alarm Clock

in Ruby?

Page 53: Ruby on Rails Introduction

sleep7.hours%x(open~/heaven‐sent.mp3)


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Ruby + Rails

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