Change FormDescription routes to use locale parameter instead of id

[Copilot]

FormDescription URLs now use locale as the route parameter instead of numeric id, making URLs semantic and human-readable.

Changes

Model: Added to_param returning locale

def to_param
  locale
end

Routes: Specified param: :locale on resource

resources :form_descriptions, param: :locale, except: %i(index)

Controller: Changed lookup from find(params[:id]) to find_by!(locale: params[:locale])

Tests: Added routing specs and to_param coverage

URL Examples

# Before
/admin/conferences/rk2025/form_descriptions/123

# After
/admin/conferences/rk2025/form_descriptions/en
/admin/conferences/rk2025/form_descriptions/ja

No view changes required—Rails path helpers automatically invoke to_param.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Change admin/form_descriptions param to #locale from #id</issue_title>
<issue_description>Current: /admin/conferences/:slug/form_descriptions/:id
Desired: /admin/conferences/:slug/form_descriptions/:locale

Define to_param in FormDescription then update routes and controllers</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Change admin/form_descriptions param to #locale from #id #105

---

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[github-actions]

Slowest examples

Top 10 slowest examples (6.2 seconds, 56.9% of total time)

Example	Description	Time in seconds
spec/jobs/create_broadcast_deliveries_job_spec.rb:42	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All status all is expected to eq [#<Sponsorship id: 1, accepted_at: "2025-11-21 12:11:29.747284000 +0000", booth_assigned: true, booth...63497000 +0000", url: "https://48.co.invalid", withdrawn_at: "2025-11-21 12:11:30.458697000 +0000">]	0.8144
spec/jobs/create_broadcast_deliveries_job_spec.rb:51	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All status active is expected to eq [#<Sponsorship id: 49, accepted_at: "2025-11-21 12:11:30.524023000 +0000", booth_assigned: true, boot...updated_at: "2025-11-21 12:11:30.708189000 +0000", url: "https://64.co.invalid", withdrawn_at: nil>]	0.60597
spec/jobs/create_broadcast_deliveries_job_spec.rb:80	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All plan plan1 is expected to eq [#<Sponsorship id: 193, accepted_at: "2025-11-21 12:11:32.331667000 +0000", booth_assigned: true, boo...3403000 +0000", url: "https://232.co.invalid", withdrawn_at: "2025-11-21 12:11:32.798494000 +0000">]	0.60338
spec/jobs/create_broadcast_deliveries_job_spec.rb:69	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All status accepted is expected to eq [#<Sponsorship id: 145, accepted_at: "2025-11-21 12:11:31.729575000 +0000", booth_assigned: true, boo...pdated_at: "2025-11-21 12:11:31.912973000 +0000", url: "https://160.co.invalid", withdrawn_at: nil>]	0.60145
spec/jobs/create_broadcast_deliveries_job_spec.rb:100	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All locale en is expected to eq [#<Sponsorship id: 289, accepted_at: "2025-11-21 12:11:33.536874000 +0000", booth_assigned: true, boo...4258000 +0000", url: "https://332.co.invalid", withdrawn_at: "2025-11-21 12:11:34.049389000 +0000">]	0.60143
spec/jobs/create_broadcast_deliveries_job_spec.rb:91	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All locale ja is expected to eq [#<Sponsorship id: 245, accepted_at: "2025-11-21 12:11:32.982594000 +0000", booth_assigned: true, boo...3491000 +0000", url: "https://288.co.invalid", withdrawn_at: "2025-11-21 12:11:33.498843000 +0000">]	0.60073
spec/jobs/create_broadcast_deliveries_job_spec.rb:60	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All status pending is expected to eq [#<Sponsorship id: 113, accepted_at: nil, booth_assigned: true, booth_requested: false, conference_id...pdated_at: "2025-11-21 12:11:31.508638000 +0000", url: "https://128.co.invalid", withdrawn_at: nil>]	0.6003
spec/jobs/create_broadcast_deliveries_job_spec.rb:131	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All composite ja active plan is expected to eq [#<Sponsorship id: 445, accepted_at: "2025-11-21 12:11:35.468286000 +0000", booth_assigned: true, boo...pdated_at: "2025-11-21 12:11:35.508979000 +0000", url: "https://448.co.invalid", withdrawn_at: nil>]	0.59385
spec/jobs/create_broadcast_deliveries_job_spec.rb:111	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All exhibitor yes is expected to eq [#<Sponsorship id: 337, accepted_at: "2025-11-21 12:11:34.138369000 +0000", booth_assigned: true, boo...6554000 +0000", url: "https://382.co.invalid", withdrawn_at: "2025-11-21 12:11:34.671938000 +0000">]	0.59303
spec/jobs/create_broadcast_deliveries_job_spec.rb:140	CreateBroadcastDeliveriesJob filters CreateBroadcastDeliveriesJob::Filters::All composite ja accepted exhibitors is expected to eq [#<Sponsorship id: 485, accepted_at: "2025-11-21 12:11:35.969254000 +0000", booth_assigned: true, boo...pdated_at: "2025-11-21 12:11:36.079266000 +0000", url: "https://494.co.invalid", withdrawn_at: nil>]	0.59156