Introduction to rails

27
Introduction to Web Development Using Rails Chhorn Chamnap 4 August 2012

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Transcript of Introduction to rails

Page 1: Introduction to rails

Introduction to Web Development Using Rails

Chhorn Chamnap4 August 2012

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Who Am I?

● Software Engineer from Yoolk Inc.● The author of the gem 'active_record_uuid'● Blog: http://chamnap.github.com/● Twitter: @chamnap● Email: [email protected]

https://rubygems.org/gems/active_record_uuid
http://chamnap.github.com/
mailto:[email protected]
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What is Rails?

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+ =

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Websites on Rails

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Companies using Rails

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Version History

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The Framework

● Convention over Configuration (CoC)● Don't Repeat Yourself (DRY)● Model View Controller (MVC)

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The Framework (MVC)

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ActiveRecord

● Object Relational Mapping (ORM)● Class to Table, Object to Row● CRUD simple● Database Agnostic

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ActiveRecord::Base

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Validation

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has_one

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has_many

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belongs_to

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has_many :through

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Associations

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Fat Models

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ActionController

● Separation of business logic and presentation● Ideally there should be no logic in the view

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ActionController

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ActionView

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action.mimetype.renderer

● show.html.erb● index.rss.builder● edit.iphone.haml

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Live Demo

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Questions?


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