Added collection iteration to AR::Relation.

activerecord/lib/active_record/relation.rb

@@ -13,6 +13,10 @@ def to_a
       @klass.find_by_sql(@relation.to_sql)
     end
 
+    def each(&block)
+      to_a.each(&block)
+    end
+
     def first
       @relation = @relation.take(1)
       to_a.first

activerecord/test/cases/relations_test.rb

@@ -73,6 +73,5 @@ def test_joins_with_string_array
     ).to_a
     assert_equal 1, person_with_reader_and_post.size
   end
-
 end