= ActivityPeriod

ActiveRecord extension that adds checking if resource is active on given date based on +active_from+ and +active_to+ attributes.

== Usage

class Article < ActiveRecord::Base
  has_active_period
end

article = Article.create(:name => "article 1", 
                         :active_from => Date.new(2010,6,15),
                         :active_to => Date.new(2010,6,20))

Article.active(Date.new(2010, 06, 17))[0] == article # => true
article.is_active?(Date.new(2010, 6, 30)) # => false
article.is_active? # => false for today

Copyright (c) 2010 Bojan Mihelac, released under the MIT license