Migration benchmark wrappers use alias_method_chain. Closes #6456.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5563 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 4 insertions, 5 deletions

diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index b132b3d820..0afb5c29e1 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -191,11 +191,11 @@ module ActiveRecord
     cattr_accessor :verbose
 
     class << self
-      def up_using_benchmarks #:nodoc:
+      def up_with_benchmarks #:nodoc:
         migrate(:up)
       end
 
-      def down_using_benchmarks #:nodoc:
+      def down_with_benchmarks #:nodoc:
         migrate(:down)
       end
 
@@ -209,7 +209,7 @@ module ActiveRecord
         end
         
         result = nil
-        time = Benchmark.measure { result = send("real_#{direction}") }
+        time = Benchmark.measure { result = send("#{direction}_without_benchmarks") }
 
         case direction
           when :up   then announce "migrated (%.4fs)" % time.real; write
@@ -231,8 +231,7 @@ module ActiveRecord
           case sym
             when :up, :down
               klass = (class << self; self; end)
-              klass.send(:alias_method, "real_#{sym}", sym)
-              klass.send(:alias_method, sym, "#{sym}_using_benchmarks")
+              klass.send(:alias_method_chain, sym, "benchmarks")
           end
         ensure
           @ignore_new_methods = false