1 files changed, 7 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/delegating_attributes.rb b/activesupport/lib/active_support/core_ext/class/delegating_attributes.rb
index f5f0ef8779..368317df9b 100644
--- a/activesupport/lib/active_support/core_ext/class/delegating_attributes.rb
+++ b/activesupport/lib/active_support/core_ext/class/delegating_attributes.rb
@@ -19,6 +19,12 @@ class Class
       def #{name}
         self.class.#{name}
       end
+      def self.#{name}?
+        !!#{name}
+      end
+      def #{name}?
+        !!#{name}
+      end
       EOS
     end
   end
@@ -37,4 +43,4 @@ class Class
     superclass_delegating_reader(*names)
     superclass_delegating_writer(*names)
   end
-end
-\ No newline at end of file
+end