Application from A to Z A.K.A. From Zero to Deploy Rails makes you develop your web application with a smile on the face, I promise. 

Fact This is not Ruby! Her name is Rania and known as Ruby! en.wikipedia.org/wiki/Ruby_(Egyptian_singer) 

Amr and Ruby A True Love Story Since 2007... Six years! Yes! the longest relationship I've ever had! 

"Ruby on Rails" or just "Rails"? Ruby on Rails became Rails with version 3.0 after partially merging some components from Merb framework. 

gem install rails Rails is a collection of Ruby Gems 

Fire the terminal and your favourite editor. Let's Build a Quick Application 

rails new rails generate rails db rails console rails server Rails Command 

rails new ./demoapp -T Also, theres lots of options to pass. Type rails to see the options and the defaults. I skip installing Test Units. It will run bundle install after. Rails New 

bundle || bundle install || bundle update Bundler is a Ruby dependency manager. Rails uses Bundler mainly to manage its dependencies and gems. Bundler, ah? 

Rails adopts MVC architecture ● Model ○ Database and logic ● View ○ Layout, views, what end-user sees. ● Controller ○ The layer between the models and the views Read more: net.tutsplus.com/tutorials/ruby/why-rails |-- Gemfile |-- Gemfile.lock |-- app | |-- assets | |-- controllers | |-- helpers | |-- mailers | |-- models | `-- views |-- config |-- config.ru |-- db |-- doc |-- lib |-- log |-- public |-- script |-- tmp `-- vendor Rails Application Layout 

rails generate The main Rails generators (or the handy ones): rails g scaffold rails g model rails g controller rails g migration Rails Generate 

rails g scaffold rails generate scaffold MODEL_NAME [field[:type][:index] (...)] [options] Example rails generate scaffold post title:string body:text Rails Generate Scaffold 

Rails Generate Scaffold 

Let's Run the Server rails server Go to http://0.0.0.0:3000 

Let's Run the Server http://uxyd.deviantart.com/art/Rainbow-Dash-Vector-306294452 

Let's Run the Server Go to http://0.0.0.0:3000/posts http://uxyd.deviantart.com/art/Shocked-Rainbow-Dash-307904818 

Let's Run the Server No posts table? No problem! run: rake db:migrate Notice, we use sqlite3 database. The database will be created automatically. For other databases run the command below before rake db:migrate. rake db:create 

Let's Run the Server, again! 

Let's Build a Real Application Demo Time http://uxyd.deviantart.com/art/Oh-My-Gosh-302709822 

Let's Deploy heroku.com Using Just some simple commands: ● Add it to a Git repository ○ git init ○ git add . ○ git commit -m "a message - lets deploy" ● Install Heroku Toolbelt: toolbelt.heroku.com ● heroku create ● git push heroku master ● heroku run db:migrate (use pg in prooduction) ● heroku open 

Thank you Amr Numan Tamimi @amrnt