Context Aware Scope
An extension to ActiveRecord’s named scope
Usage
1. Add a context to a named_scope:
  named_scope :luxurious, :conditions => ['price > ?', 100], :context => {:price => 'luxurious'}
  named_scope :recent, :conditions => ['created_at > ?', 1.week.ago], :context => {:created_at => 'brand new'}
2. Execute the scopes:
@products = Product.new.luxurious
3. And get the context:
  @products.context
  # => {:price => 'luxurious', :created_at => 'brand new'}
  "You are looking at #{@products.context.values.to_sentence} products"
  # => "You are looking at brand new and luxurious products"
Installation
Install the ContextAwareScope gem:
gem install context_aware_scope