Add advisor relation

app/models/pbs/event.rb

@@ -13,6 +13,9 @@ module Pbs::Event
   included do
     class_attribute :superior_attributes
     self.superior_attributes = []
+
+    # dummy accessors for event_resource (only courses do have advisor)
+    attr_accessor :advisor_id, :advisor
   end
 
   def camp_submitted?

app/resources/pbs/event_resource.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+#  Copyright (c) 2024,  Pfadibewegung Schweiz. This file is part of
+#  hitobito_pbs 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_pbs.
+
+module Pbs::EventResource
+  extend ActiveSupport::Concern
+
+  included do
+    attribute :advisor_id, :integer, writable: false, sortable: false
+    belongs_to :advisor, resource: PersonResource, writable: false, foreign_key: :advisor_id do
+      assign do |_event, _person|
+        # nothing
+      end
+    end
+  end
+end

lib/hitobito_pbs/wagon.rb

@@ -147,6 +147,10 @@ class Wagon < Rails::Engine
 
       DeviseController.include HostnamedGroups
 
+      ### resources
+
+      EventResource.include Pbs::EventResource
+
       ### sheets
       Sheet::Group.include Pbs::Sheet::Group
       Sheet::Event.include Pbs::Sheet::Event