Storing a simple student database in Rails

Set up Ruby on Rails from http://rubyonrails.org/download. Make a directory ‘my_rails’ in your home folder for rails applications.
$ cd my_rails

create your application as following
$ rails new student_db
$ cd student_db
For including gems, you need to update the Gemfile, that resides in your application folder. Open the ‘Gemfile’ and update.

Gemfile :
source ‘http://rubygems.org’
gem ‘rails’, ‘3.0.0’
gem ‘sqlite3-ruby’, ‘1.2.5’, :require => ‘sqlite3’

Specify the version number for sqlite3.    This is for avoiding confusion while installing the gems.

Install gems
$ bundle install

Now you are ready to generate the student model. Use scaffold generator.

Student data model

Note : Rails developers dislike scaffold. Because it itself generates code. So don’t use it. This is only for referring the application.
$ rails generate scaffold Student first_name:string last_name:string roll_no:integer total_mark:integer

Migrate the database using rake.

$ rake db:migrate

Now run the server.

$ rails s

open the browser and go to http://localhost:3000/student

To see this application visit,
Student_data_base

Author: Abhilash

Hey! This is Abhilash - A Ruby developer for years, specialised on web development, working as a freelance Ruby Developer. I have experience in other frameworks such as Angular, Sinatra, Laravel etc. Mainly working on Ruby On Rails platform since 2010. This blog is about Ruby, Ruby On Rails and other subjects where I have had a chance to work on. You can contact me here: abhilash.amballur@gmail.com Abhilash AK

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