Ruby & Rails shot

• Decoupling callbacks from ActiveRecord models
• Decorators / View-Models for Rails (a.k.a. delete those ugly non OO helpers!)
• Static code analysis for Ruby

Ruby libs shot

method_decorators

Jealous of Java, C#, etc method annotations? Here's a mini gem that gives you the opportunity to do this in Ruby! Watch out :

class ExternalService
  extend MethodDecorators

  +Retry.new(3)
  def request
    ...
  end
end

Source and info : https://github.com/michaelfairley/method_decorators
Spotted through Extending Ruby with Ruby (with explanation and other cool ideas)

anise

Dynamic code annotations

class X
  extend Anise::Annotative::Attributes

  attr :baz, Integer, :max => 10
end

X.ann(:baz)  #=> {:class=>Integer, :max=>10}

Source and info : https://github.com/rubyworks/anise

Her

An "ORM" for REST apis instead of database models

Her::API.setup :base_uri => "https://api.example.com" do |builder|
  builder.use Faraday::Request::UrlEncoded
  builder.use Her::Middleware::DefaultParseJSON
  builder.use Faraday::Adapter::NetHttp
end

class User
  include Her::Model
end

User.all
# GET https://api.example.com/users and return an array of User objects

User.find(1)
# GET https://api.example.com/users/1 and return a User object

@user = User.create(:fullname => "Tobias Fünke")
# POST "https://api.example.com/users" with the data and return a User object

@user = User.new(:fullname => "Tobias Fünke")
@user.occupation = "actor"
@user.save
# POST https://api.example.com/users with the data and return a User object

@user = User.find(1)
@user.fullname = "Lindsay Fünke"
@user.save
# PUT https://api.example.com/users/1 with the data and return+update the User object

Info and source : http://remiprev.github.com/her/

Spotted through http://notes.exomel.com/2012/04/her-an-orm-for-rest-apis.html