extension to encode column values automatically

 DBIx::Class::EncodedColumn is a DBIx::Class component which can automatically
 encode a column's contents whenever the value of that column is set, similar
 to DBIx::Class::DigestColumns. Any data you write is automatically converted
 on-the-fly and, in contrast to DigestColumns, any arbitrary message digest or
 encryption method can be supported through an appropriate encoding class.