DEPRECATION WARNING: String#mb_chars in Rails 8.1+

[samuelLkennedy]

When using Administrate with Rails 8.1, a deprecation warning is triggered for String#mb_chars and ActiveSupport::Multibyte::Chars. The suggested fix is to use normal string methods instead.

Example location was found in search:
https://github.com/thoughtbot/administrate/blob/main/lib/administrate/search.rb#L114
["%#{term.mb_chars.downcase}%"] * fields_count

Suggesting in prep of future Rails updates. Thanks for checking this out and lmk if my issue is whack because I'm new to writing them 👍

[nickcharlton]

Thanks! Yes, this looks like something we should solve sooner rather than later.

Would you like to try opening a PR to make the change? It sounds like you know where to make it, and hopefully the normal string methods just drop in. The tests should help out with any edge cases (hopefully!).

[mpvosseller]

Thanks. Ran into this today too and created a quick PR: #2967