Add ability to translate server rules (#34494)

app/views/admin/rules/_translation_fields.html.haml

@@ -0,0 +1,27 @@
+%tr.nested-fields
+  %td
+    .fields-row
+      .fields-row__column.fields-group
+        = f.input :language,
+                  collection: ui_languages,
+                  include_blank: false,
+                  label_method: ->(locale) { native_locale_name(locale) }
+
+      .fields-row__column.fields-group
+        = f.hidden_field :id if f.object&.persisted? # Required so Rails doesn't put the field outside of the <tr/>
+        = link_to_remove_association(f, class: 'table-action-link') do
+          = safe_join([material_symbol('close'), t('filters.index.delete')])
+
+    .fields-group
+      = f.input :text,
+                label: I18n.t('simple_form.labels.rule.text'),
+                hint: I18n.t('simple_form.hints.rule.text'),
+                input_html: { lang: f.object&.language },
+                wrapper: :with_block_label
+
+    .fields-group
+      = f.input :hint,
+                label: I18n.t('simple_form.labels.rule.hint'),
+                hint: I18n.t('simple_form.hints.rule.hint'),
+                input_html: { lang: f.object&.language },
+                wrapper: :with_block_label

app/views/admin/rules/edit.html.haml

@@ -6,5 +6,26 @@
 
   = render form
 
+  %hr.spacer/
+
+  %h4= t('admin.rules.translations')
+
+  %p.hint= t('admin.rules.translations_explanation')
+
+  .table-wrapper
+    %table.table.keywords-table
+      %thead
+        %tr
+          %th= t('admin.rules.translation')
+          %th
+      %tbody
+        = form.simple_fields_for :translations do |translation|
+          = render 'translation_fields', f: translation
+      %tfoot
+        %tr
+          %td{ colspan: 3 }
+            = link_to_add_association form, :translations, class: 'table-action-link', partial: 'translation_fields', 'data-association-insertion-node': '.keywords-table tbody', 'data-association-insertion-method': 'append' do
+              = safe_join([material_symbol('add'), t('admin.rules.add_translation')])
+
   .actions
     = form.button :button, t('generic.save_changes'), type: :submit

app/views/auth/registrations/rules.html.haml

@@ -18,10 +18,11 @@
 
   %ol.rules-list
     - @rules.each do |rule|
+      - translation = rule.translation_for(I18n.locale.to_s)
       %li
         %button{ type: 'button', aria: { expanded: 'false' } }
-          .rules-list__text= rule.text
-          .rules-list__hint= rule.hint
+          .rules-list__text= translation.text
+          .rules-list__hint= translation.hint
 
   .stacked-actions
     - accept_path = @invite_code.present? ? public_invite_url(invite_code: @invite_code, accept: @accept_token) : new_user_registration_path(accept: @accept_token)