From 6e4a064256331f21b3b3107e2349f7e7adc6d8e6 Mon Sep 17 00:00:00 2001
From: Tieg Zaharia <tieg@kickstarter.com>
Date: Sat, 9 Jun 2012 00:42:55 -0400
Subject: ActiveRecord#attributes optimization: minimize objects created

---
 activerecord/lib/active_record/attribute_methods.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index 06b66b5195..7fc3b2bb5d 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -181,7 +181,9 @@ module ActiveRecord
 
     # Returns a hash of all the attributes with their names as keys and the values of the attributes as values.
     def attributes
-      Hash[@attributes.map { |name, _| [name, read_attribute(name)] }]
+      attrs = {}
+      attribute_names.each { |name| attrs[name] = read_attribute(name) }
+      attrs
     end
 
     # Returns an <tt>#inspect</tt>-like string for the value of the
-- 
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