Relation should respond to class methods

2 files changed, 6 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index fa99e3f891..1a96cdad17 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -32,7 +32,7 @@ module ActiveRecord
     end
 
     def respond_to?(method, include_private = false)
-      return true if arel.respond_to?(method, include_private) || Array.method_defined?(method)
+      return true if arel.respond_to?(method, include_private) || Array.method_defined?(method) || @klass.respond_to?(method, include_private)
 
       if match = DynamicFinderMatch.match(method)
         return true if @klass.send(:all_attributes_exists?, match.attribute_names)
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index d34c9b4895..1e345399f5 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -164,6 +164,11 @@ class RelationTest < ActiveRecord::TestCase
     end
   end
 
+  def test_respond_to_class_methods_and_named_scopes
+    assert DeveloperOrderedBySalary.scoped.respond_to?(:all_ordered_by_name)
+    assert Topic.scoped.respond_to?(:by_lifo)
+  end
+
   def test_find_with_readonly_option
     Developer.scoped.each { |d| assert !d.readonly? }
     Developer.scoped.readonly.each { |d| assert d.readonly? }