Ruby on Rails 3

Rails 3

Mittwoch, 3. Februar 2010

23.12.2009

+


2004-2010


Ruby 1.9 / JRuby / REE


Ruby on Rails 3


Was ist anders?


eigentlich nichts...

>> rails next-big-thing



script/server



Vielen Dank...


:D


The great decoupling


ORM Agnosticism


Problem...


Problem...


Problem...ActiveRecord


Problem...

DataMapper, Sequel, etc.?

ActiveRecord


ActionORM

• new_record?

• errors

• valid?

• initialize


ActionORM

• new_record?

• errors

• valid?

• initialize

anything like ActiveRecord


ActionORM


ActiveModel


ActiveModel• Callbacks

• Dirty

• Validations

• Oberserving

• StateMachine

• Translation



Arel


A Relational Algebra for Ruby




http://gist.github.com/265308




Bundler Bubble


Gemfile


cannot activate xx 1.1 already activated xx 1.0


Bubble

• Alle dependencies in einer Datei

• Auflösen der dependencies ohne die App zu starten

• Unabhängig von neuen Vesionen

• Nachdem die dependencies aufgelöst sind muss nichts mehr von gemcutter geladen werden => reproduzierbares environemt



Rack


Make the simplest possible API that

represents a generic web application


request => response


RequestHTTP CGI


ResponseStatus

Header

Body


[Status, Header, Body]


Rack - die Spec

http://chneukirchen.org/talks/euruko-2007/neukirchen07introducingrack.pdf


http://rack.rubyforge.org/doc/classes/Rack/Builder.html

http://rack.rubyforge.org/doc/classes/Rack/Builder.html

\m/Mittwoch, 3. Februar 2010

HTTP APP\m/ \m/ \m/



Controller#callRouter#call


controller actions



RouterRails Controller

Merb Controller

Sinatra

Rails Router Rails Controller


Router



Rack + Router




Generic Actions



ActionController::Responder



Custom Responders



und sonst so?

• Mail - the new ruby e-mail library

• alias_method_chain vs. Modules

• unobstrusive + library unabhängiges JavaScript

•


What to do?

• Ruby 1.9 !

• Rack!

• Router

• Aerel

• API


Fragen?


Technology

Ruby on Rails 3