This document provides an introduction to web development using the Ruby on Rails framework. It discusses what Rails is, companies that use Rails, Rails' version history, and the key aspects of the Rails framework including Model View Controller architecture, ActiveRecord for object-relational mapping, associations, and ActionController and ActionView for controllers and views. The document concludes with a live demo and Q&A section.

1. Introduction to Web Development Using Rails
Chhorn Chamnap
4 August 2012

2. Who Am I?
● Software Engineer from Yoolk Inc.
● The author of the gem 'active_record_uuid'
● Blog: http://chamnap.github.com/
● Twitter: @chamnap
● Email: chamnapchhorn@gmail.com

3. What is Rails?

4. + =

5. Websites on Rails

6. Companies using Rails

7. Version History

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

9. The Framework (MVC)

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

12. ActiveRecord::Base

13. Validation

14. has_one

15. has_many

16. belongs_to

17. has_many :through

18. Associations

19. Fat Models

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

22. ActionController

24. ActionView

25. action.mimetype.renderer
● show.html.erb
● index.rss.builder
● edit.iphone.haml

26. Live Demo

27. Questions?