1Ruby on Rails04/08/23

Building Web Applications Is Fun Again!

A collection of good libraries, less works but achieve better results and faster.

There are lots of nice tools, classes and methods to makedevelopment easier.

2Ruby on Rails04/08/23

Ruby is:• A High Level Programming Language• Originated in Japan and Rapidly Gaining Mindshare in US and Europe.

3Ruby on Rails04/08/23

Why Ruby ?• Easy to learn• Open source• Very easy to extend• Truly Object-Oriented• Less Coding with fewer bugs

4Ruby on Rails04/08/23

Rails is• A web-application framework written in Ruby by David Heinemeier Hansson.• Model-View-Controller

5Ruby on Rails04/08/23

Model (ActiveRecord ) :Maintains the relationship between Object and Database and handles validation, association, transactions, and more.

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View ( ActionView )A presentation of data in a particular format, triggered by a controller's decision to present the data.

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Controller ( ActionController ): is the logical center of your application. It coordinates the interaction between the user, the views, and the model.

8Ruby on Rails04/08/23

A Pictorial Diagram of Ruby on Rails Framework:

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This can be created by using sample helper command C:\InstantRails\rails_apps>rails demoThen you will find a directory structure as follow:

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demo/ ..../app ......../controller ......../helpers ......../models ......../views ............../layouts ..../components ..../config ..../db..../doc ..../lib

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12Ruby on Rails04/08/23

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

1. Instant Rails 2.02. Instant Rails 1.73. Instant Rails 1.54. Instant Rails 1.45. Instant Rails 1.3a

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1. Unzip Instant Rails on any hard drive2. Start server Apache and MySQL

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Go to command prompt by using helper command as follow:C:\InstantRails>use_ruby

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Rails will try to use Mongrel and lighttpd if they are installed, otherwise Rails will use WEBBrick, the webserver that ships with ruby.

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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.

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• Mysql• Oracle• Postgre Sql• SqlLite• And more…

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