RoR traning workshop (Level 1)

Boutique product development companyIt is amazing what you can accomplish when you have a client-centric team to deliver outstanding products.

Boutique product development companyIt is amazing what you can accomplish when you have a client-centric team to deliver outstanding products.

Ruby on Rails - 101Umair Amjad | Senior Software EngineerUmer Sheikh | Software Engineer

Who we are?

Umair Amjad | Umer Sheikh

Umair AmjadSenior Software Engineer

BS CS 2006(FAST-NU)MS CS 2012(FAST-NU)

http://about.me/umairamjad

Umer SheikhSoftware Engineer

BS CS 2006(FAST-NU)MS CS 2011(FAST-NU)

http://about.me/iumersheikh

Why we are here?


What will happen next?


Tentative Duration: 2-4 hrsNumber of Slides: 109

Ruby on Rails 102 (Moderate)Ruby on Rails 103 (Expert)

Fun with Gems, Authenticating Users, Heroku, Capistrano, Security/Performance, Tuning, Pagination, Email in Rails, Eager Loading,

Background Tasks, Unit Testing, Internationalization & Localization ...

Ruby on Rails Workshop

Agenda:• Ruby Language

• Setting up Environment

• Overview of RoR

• MVC – ActiveRecord, ActionController, ActionView

• Routing

• Assets/Bundler

• REST Architecture

• DB Migrations

• Console

• ActiveRecord Associations

• Logging

• Validation/Validation Helpers

• Forms/ActionView helpers

• Caching

• Debugging


Nice-to-Have


- Basics of Linux- Basic knowledge of Html, CSS, JS- Frameworks- Client Server Architecture- HTTP methods- MVC (Model View Controller)- ORM (Object-relational mapping)

Ruby on Rails - Users


- Amazon (internal)- Intel (internal)- HP (internal)- NASA (internal)- Twitter (in early age)- Basecamp- Slideshare- Pakwheels- Github- YellowPages


Ruby











Primary:http://www.tutorialspoint.com/ruby/index.htmThe Little Book Of Ruby

References:http://www.codecademy.com/tracks/rubyhttp://www.rubyist.net/~slagell/ruby/getstarted.htmlhttp://rubymonk.com/learning/books/1-ruby-primer

Try Ruby online:http://www.compileonline.com/execute_ruby_online.php


Setting up Environment

(RVM)


http://setuprubyonrails.blogspot.com/2012/04/ruby-on-rails-environment-setup-on.html

rvm install [ruby_version]rvm install 1.9.2

rvm use [ruby_version]rvm use 1.9.2

rvm gemset create [gemset_name]rvm gemset create rails3.1.3

rvm use [ruby_version]@[gemset_name]rvm use [email protected]

http://setuprubyonrails.blogspot.com/2012/04/ruby-on-rails-environment-setup-on.html

mailto:[email protected]


Overview of RoR / MVC










REST Architecture





Assets /

Minification



Bundler



Code Generation





RailsRake, Route, Controller, Model, View


Rake


Rake is Ruby make, a make-like language written in Ruby.

Rails uses Rake extensively, especially for the innumerable little administrative tasks necessary when developing database-backed web applications.

Rake tasks are loaded from the file Rakefile

Rails rake tasks live under /lib/tasks

You can put your own tasks under lib/tasks

bundle exec rake -Tbundle exec rake -T db #See a list of database tasks


db: DatabaseThe most common tasks of the db: Rake namespace are migrate and create, and it will pay off to try out all of the migration rake tasks (up, down, redo, reset). rake db:version is useful when troubleshooting, telling you the current version of the database.

rails: Rails-specific tasksAfter upgrading Rails, it is useful to run rails:update, which will update your config and scripts directories, and upgrade your Rails-specific javascript

rake stats #gives summary statistics about your code

rake routes #lists all your defined routes

rake secret


Routes







Controllers











Model






















Views













Debugging/

Error Handling




gem install debugger

class PeopleController < ApplicationController

def new

debugger

@person = Person.new

end

end

$ rails server --debugger

=> Booting WEBrick

=> Rails 4.0.0 application starting on http://0.0.0.0:3000

=> Debugger enabled


Caching





Console


rails console

The console command lets you interact with your Rails application from the command line. On the underside, rails console uses IRB, so if you've ever used it, you'll be right at home. This is useful for testing out quick ideas with code and changing data server-side without touching the website.

rails dbconsole

rails dbconsole figures out which database you're using and drops you into whichever command line interface you would use with it (and figures out the command line parameters to give to it, too!). It supports MySQL, PostgreSQL, SQLite and SQLite3.



Questions ?

Technology

RoR traning workshop (Level 1)