Introduction to Ruby on Rails

1. Introduction to Ruby on Rails

2. This Presentation Based on RailsBridge Open Workshop Project http://wiki.railsbridge.org/projects/railsbridge/wiki/Workshops On Slideshare http://www.slideshare.net/alkeshv/introduction-to-rails-2951425

3. What we’re going to do “Suggestotron” Topics Votes

4. Create Rails App rails suggestotron ruby script/server http://localhost:3000

5. Index Page public/index.html

6. Scaffolding ruby script/generate scaffold topic title:string description:text rake db:migrate

7. What happened? Generated files Migration http://localhost:3000/topics MVC Routes

8. Votes script/generate resource vote topic_id:integer

10. Controller class VotesController < ApplicationController def create vote = Vote.new(:topic_id => params[:topic]) vote.save if vote.save flash[:notice] = 'Vote was successfully created.’ else flash[:notice] = 'Sorry we could not count your vote.’ end redirect_to(topics_path) end end