application_created_event.rb

diff --git a/app/events/applications/application_created_event.rb b/app/events/applications/application_created_event.rb
index 29afbca..8f62278 100644
--- a/app/events/applications/application_created_event.rb
+++ b/app/events/applications/application_created_event.rb
@@ -1,4 +1,15 @@
 class Applications::ApplicationCreatedEvent < RailsEventStore::Event
+
+  def self.belongs_to(association)
+    define_method "find_#{association}" do
+      association.to_s.camelize.constantize.find(__send__("#{association}_id"))
+    end
+  end
+
+  belongs_to :provider
+  belongs_to :service
+  belongs_to :plan
+
   # @param [Cinstance] application
   def self.create(application)
     new(