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-rw-r--r--activerecord/lib/active_record/named_scope.rb23
1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/named_scope.rb b/activerecord/lib/active_record/named_scope.rb
index d291632260..d5fff65303 100644
--- a/activerecord/lib/active_record/named_scope.rb
+++ b/activerecord/lib/active_record/named_scope.rb
@@ -99,6 +99,29 @@ module ActiveRecord
#
# Article.published.new.published # => true
# Article.published.create.published # => true
+ #
+ # Class methods on your model are automatically available
+ # on scopes. Assuming the following setup:
+ #
+ # class Article < ActiveRecord::Base
+ # scope :published, where(:published => true)
+ # scope :featured, where(:featured => true)
+ #
+ # def self.latest_article
+ # order('published_at desc').first
+ # end
+ #
+ # def self.titles
+ # map(&:title)
+ # end
+ #
+ # end
+ #
+ # We are able to call the methods like this:
+ #
+ # Article.published.featured.latest_article
+ # Article.featured.titles
+
def scope(name, scope_options = {})
name = name.to_sym
valid_scope_name?(name)