Fixes validates_uniquness_of problem with case insensitive string containing newline characters

Signed-off-by: Michael Koziarski <michael@koziarski.com>

2 files changed, 8 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index 577e30ec86..ac7a87d59f 100644
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -665,7 +665,7 @@ module ActiveRecord
             condition_params = [value]
           else
             condition_sql = "LOWER(#{sql_attribute}) #{comparison_operator}"
-            condition_params = [value.chars.downcase]
+            condition_params = [value.chars.downcase.to_s]
           end
 
           if scope = configuration[:scope]
diff --git a/activerecord/test/cases/validations_test.rb b/activerecord/test/cases/validations_test.rb
index 1f5f9fd489..c049659327 100644
--- a/activerecord/test/cases/validations_test.rb
+++ b/activerecord/test/cases/validations_test.rb
@@ -364,6 +364,13 @@ class ValidationsTest < ActiveRecord::TestCase
     assert t2.save, "Should now save t2 as unique"
   end
 
+  def test_validates_uniquness_with_newline_chars
+    Topic.validates_uniqueness_of(:title, :case_sensitive => false)
+
+    t = Topic.new("title" => "new\nline")
+    assert t.save, "Should save t as unique"
+  end
+
   def test_validate_uniqueness_with_scope
     Reply.validates_uniqueness_of(:content, :scope => "parent_id")