Ruby On Rails Presentation

Ruby on Rails 06/04/09 Building Web Applications Is Fun Again! Presented by Hy Chan Han

Web Developer

Ruby on Rails

PHP before then

Free and Open Source (FOSS) Enthusiast

Ruby on Rails 06/04/09

A collection of good libraries, less works but achieve better results and faster. There are lots of nice tools, classes and methods to make development easier. Ruby on Rails 06/04/09

Ruby is :

A High Level Programming Language

Originated in Japan and Rapidly Gaining Mindshare in US and Europe.

Why Ruby ?

Easy to learn

Open source

Very easy to extend

Truly Object-Oriented

Less Coding with fewer bugs

Rails is

A web-application framework written in Ruby by David Heinemeier Hansson .

Model-View-Controller

Model (ActiveRecord ) : Maintains the relationship between Object and Database and handles validation, association, transactions, and more. Ruby on Rails 06/04/09

View ( ActionView ) A presentation of data in a particular format, triggered by a controller's decision to present the data. Ruby on Rails 06/04/09

Controller ( ActionController ): is the logical center of your application. It coordinates the interaction between the user, the views, and the model. Ruby on Rails 06/04/09

A Pictorial Diagram of Ruby on Rails Framework: Ruby on Rails 06/04/09

This can be created by using sample helper command

C:InstantRails ails_apps>rails demo

Then you will find a directory structure as follow:

demo/

..../app

......../controller

......../helpers

......../models

......../views

............../layouts

..../components

..../config

..../db

..../doc

..../lib

Go to http://rubyforge.org/projects/instantrails/

Instant Rails 2.0

Instant Rails 1.7

Instant Rails 1.5

Instant Rails 1.4

Instant Rails 1.3a

Unzip Instant Rails on any hard drive

Start server Apache and MySQL

Ruby on Rails 06/04/09 Go to command prompt by using helper command as follow: C:InstantRails>use_ruby

Ruby on Rails 06/04/09 Rails will try to use Mongrel and lighttpd if they are installed, otherwise Rails will use WEBBrick, the webserver that ships with ruby.

Ruby on Rails 06/04/09 Windows users are encouraged to Start with Mongrel because it is a Ruby-based webserver that is suitable for development and deployment of Rails applications.