nice_splash_scoping.rb

class User
  include Splash::Document
end
users = Scope.new(User, {:query=>{'posts'=>{'$gt'=> 10 }}}) # <- users now behaves very similiar to User, except that it only finds users with >= 10 posts
users2 = User.query({'posts'=>{'$gt'=> 10 }}) # <- shorthand for the above
users3 = users.query('tags'=>'cool guy') # <- scopes are stackable. users3 now finds all users with >= 10 posts and tag 'cool guy'

scoped_methods.rb

class User
  include Splash::Document
  
  module ScopedMethods
    def print_users!
        self.each do |u|
           puts u.inspect
        end
        return self
    end
  end

  # extends User and all derived scopes with ScopedMethods
  extend_scoped! ScopedMethods

  # extends User and all derived scopes with these methods
  extend_scoped! do

     def cool
        conditions('cool'=>true)
     end

  end

end

strange_ar_scoping.rb

def print_users(users)
  users.all.each do |user|
     puts user.inspect
  end
end
class User < ActiveRecord::Base
  
  named_scope :with_more_posts_than, lambda{|posts| {:conditions=>['posts >= ?',posts]} }

  def self.print_users!
    print_users(self) # <- this access is scoped as expected
    return self # <- self is in this case everytime User !
  end

end
print_users( User ) # <- prints all users
print_users( User.with_more_posts_than(5) ) # <- prints all users with >= 5 posts
print_users( User.print_users! ) # <- prints all users twice
print_users( User.with_more_posts_than(5).print_users! ) # <- prints all users with >= 5 posts and then all users!