Rails HTTP Status codes

Faster than digging into Ruby on Rails guides ;-)

International

Rails International Status Codes and Symbols

Success

Rails Success Status Codes and Symbols

Redirection

Rails Redirection Status Codes and Symbols

Client Error

Rails Client Error Status Codes and Symbols

Server Error

Rails Server Error Status Codes and Symbols

For more information regarding the render method, refer to http://guides.rubyonrails.org/layouts_and_rendering.html