From d1e4f434157a8f8560c5fd9fc65a4280ec95bc86 Mon Sep 17 00:00:00 2001
From: Hector E. Gomez Morales <hectoregm@gmail.com>
Date: Fri, 10 Apr 2009 10:30:43 -0500
Subject: [PATCH] Use ActiveSupport::Multibyte::Chars#downcase for strings in ruby 1.9.1. Added test to check the correct encoding of attributes values.

---
 activerecord/lib/active_record/validations.rb |    4 ++++
 activerecord/test/cases/encoding_test.rb      |   20 ++++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)
 create mode 100644 activerecord/test/cases/encoding_test.rb

diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index d2d12b8..efbdede 100644
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -736,6 +736,10 @@ module ActiveRecord
           if value.nil? || (configuration[:case_sensitive] || !column.text?)
             condition_sql = "#{sql_attribute} #{comparison_operator}"
             condition_params = [value]
+          elsif '1.9'.respond_to?(:encoding)
+            condition_sql = "LOWER(#{sql_attribute}) #{comparison_operator}"
+            nvalue = ActiveSupport::Multibyte::Chars.new(value)
+            condition_params = [nvalue.downcase]
           else
             condition_sql = "LOWER(#{sql_attribute}) #{comparison_operator}"
             condition_params = [value.mb_chars.downcase]
diff --git a/activerecord/test/cases/encoding_test.rb b/activerecord/test/cases/encoding_test.rb
new file mode 100644
index 0000000..6d4d5c3
--- /dev/null
+++ b/activerecord/test/cases/encoding_test.rb
@@ -0,0 +1,20 @@
+require 'cases/helper'
+require 'models/topic'
+
+class EncodingUTF8Test < ActiveRecord::TestCase
+  fixtures :topics
+
+  if '1.9'.respond_to?(:encoding)
+
+    def setup
+      @first = Topic.find(1)
+      @utf8_encoding = Encoding.find('utf-8')
+    end
+
+    def test_attribute_value_is_utf8
+      assert_equal @utf8_encoding, @first.title.encoding
+    end
+
+  end
+
+end
-- 
1.6.2.2