time_zone_select does not use the IANA recognized format

[bart-westenenk-bex]

Steps to reproduce

Create the following form

<%= form_with scope: :company, url: companies_path, local: true do |form| %>
  <p>
    <%= form.time_zone_select :timezone, nil %>
  </p>
<% end %>

Click on a timezone, I'll choose (GMT+01:00) Amsterdam as an example.

Expected behavior

The timezone attribute on company gets set as Europe/Amsterdam.

Actual behavior

The timezone attribute on company gets set as Amsterdam.

System configuration

Rails version: 7.2.2.1

Ruby version: 3.4.1

[rails-bot]

This issue has been automatically marked as stale because it has not been commented on for at least three months.
The resources of the Rails team are limited, and so we are asking for your help.
If you can still reproduce this error on the 8-0-stable branch or on main, please reply with all of the information you have about it in order to keep the issue open.
Thank you for all your contributions.

[bart-westenenk-bex]

Still a problem

[caiohsramos]

This is the expected behavior since time_zone_select sends a ActiveSupport::TimeZone name in the form, so ActiveRecord can use it as a value object. You can easily get the TZInfo identifier with:

ActiveSupport::TimeZone['Amsterdam'].tzinfo.identifier
=> "Europe/Amsterdam"

If you actually need the form to send the identifier you can create you own select mapping over ActiveSupport::TimeZone.all