Ruby 1.9 compat: Class#subclasses is now protected

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8478 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
rails · Dec 22, 2007 · 750f15b · 750f15b
1 parent ca81278
commit 750f15b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/activerecord/lib/active_record/observer.rb b/activerecord/lib/active_record/observer.rb
@@ -170,7 +170,7 @@ def observed_classes
       end
 
       def observed_subclasses
-        observed_classes.collect(&:subclasses).flatten
+        observed_classes.sum { |klass| klass.send(:subclasses) }
       end
 
       def add_observer!(klass)