tokenize_attr

https://github.com/pniemczyk/tokenize_attr

tokenize_attr adds a `tokenize` class macro to ActiveRecord models. When no prefix is needed it transparently delegates to Rails' built-in has_secure_token (Rails 5+). When a prefix is required it installs a before_create callback backed by SecureRandom.base58 with configurable size, prefix, and retry logic.