Use helper instead of view

app/helpers/jubla/event_participations_helper.rb

@@ -0,0 +1,13 @@
+#  Copyright (c) 2012-2024, Jungwacht Blauring Schweiz. This file is part of
+#  hitobito_jubla and licensed under the Affero General Public License version 3
+#  or later. See the COPYING file at the top-level directory or at
+#  https://github.com/hitobito/hitobito_jubla.
+
+module Jubla::EventParticipationsHelper
+  def event_participation_table_options(t, event:, group:)
+    if can?(:index_participations_details, event)
+      t.col(t.sort_header(:originating_state, Person.human_attribute_name(:originating_state))) { |p| p.model.person.originating_state.to_s }
+      t.col(t.sort_header(:originating_flock, Person.human_attribute_name(:originating_flock))) { |p| p.model.person.originating_flock.to_s }
+    end
+  end
+end

lib/hitobito_jubla/wagon.rb

@@ -108,6 +108,8 @@ class Wagon < Rails::Engine
       PersonDecorator.include Jubla::PersonDecorator
 
       ### helpers
+      EventParticipationsHelper.prepend Jubla::EventParticipationsHelper
+
       # add more active_for urls to main navigation
       admin = NavigationHelper::MAIN.find { |opts| opts[:label] == :admin }
       admin[:active_for] << "event_camp_kinds"