add subfolders

app/controllers/templates_archived_controller.rb

@@ -4,9 +4,27 @@ class TemplatesArchivedController < ApplicationController
   load_and_authorize_resource :template, parent: false
 
   def index
-    @templates = @templates.where.not(archived_at: nil).preload(:author, :folder, :template_accesses).order(id: :desc)
+    @templates = @templates.where.not(archived_at: nil)
+                           .preload(:author, :template_accesses, folder: :parent_folder)
+                           .order(id: :desc)
+
     @templates = Templates.search(current_user, @templates, params[:q])
 
     @pagy, @templates = pagy_auto(@templates, limit: 12)
+
+    return unless params[:q].present? && @templates.blank?
+
+    @related_submissions =
+      Submission.accessible_by(current_ability)
+                .joins(:template)
+                .where.not(templates: { archived_at: nil })
+                .preload(:template_accesses, :created_by_user,
+                         template: :author,
+                         submitters: :start_form_submission_events)
+
+    @related_submissions = Submissions.search(current_user, @related_submissions, params[:q])
+                                      .order(id: :desc)
+
+    @related_submissions_pagy, @related_submissions = pagy_auto(@related_submissions, limit: 5)
   end
 end