Hi, I''m trying to validate the uniqueness of a value that has accented characters (á, é, í, etc) and need rails to treat them as the original letters (a, e, i). For example, if a user tries to register himself using last name "Perez", but there''s already a record with the last name "Pérez", I need the validate function to treat these two words as the same, thus avoiding ''duplicated'' records on the table. I''m using utf8_unicode_ci for both table and column in mysql database. Does anyone has experience validating_uniqueness_of values with accented characters?