temp

app/models/user.rb

@@ -346,6 +346,20 @@ class User < ApplicationRecord
     events.where(program_id: conference.program.id, 'event_users.event_role': 'volunteer')
   end
 
+  def has_registration_ticket_for?(conference)
+    seen_registration = false
+    for ticket_purchase in current_user.ticket_purchases.by_conference(@conference)
+      for physical_ticket in ticket_purchase.physical_tickets
+        if physical_ticket.ticket.registration_ticket
+          seen_registration = true
+          break
+        end
+      end
+    end
+
+    return seen_registration
+  end
+
   def self.empty?
     User.count == 1 && User.first.email == 'deleted@localhost.osem'
   end