ScopedAssociations

Use your named scopes to add conditions to associations! Keep your code DRY and allows eager loading of scoped associations.

Currently this only works for has_many associations, and probably only on Rails 2.2.

class User < ActiveRecord::Base
  has_many :published_posts, :scope => :published
  has_many :published_and_approved_posts, :scope => [:published, :approved]
end

class Post < ActiveRecord::Base
  named_scope :published, :conditions => { :published => true }
  named_scope :approved, :conditions => { :approved => true }
end

As a Rails plugin:

./script/plugin install git://github.com/kristopher/scoped-associations.git

Prefer gems? Add this to your environment.rb and run the following command.

config.gem 'kristopher-scoped-associations', :lib => 'scoped-associations', :source => 'http://gems.github.com'

$ rake gems:install

Homepage

github.com/kristopher/scoped-associations

License

Copyright © 2008 Kristopher Chambers <kristopher.chambers@gmail.com> and Elijah Miller <elijah.miller@gmail.com>, released under the MIT license