use the database to lower case strings rather than ruby. [#4293 state…

…:resolved] Signed-off-by: wycats <wycats@gmail.com>
rails · Mar 29, 2010 · 98d2d8c · 98d2d8c
1 parent 4ea289f
commit 98d2d8c
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb
@@ -67,13 +67,11 @@ def mount_sql_and_params(klass, table_name, attribute, value) #:nodoc:
 
         if value.nil? || (options[:case_sensitive] || !column.text?)
           sql = "#{sql_attribute} #{operator}"
-          params = [value]
         else
-          sql = "LOWER(#{sql_attribute}) #{operator}"
-          params = [value.mb_chars.downcase]
+          sql = "LOWER(#{sql_attribute}) = LOWER(?)"
         end
 
-        [sql, params]
+        [sql, [value]]
       end
     end