add payment resources, controllers and method for updating purchased ticket's parameters

app/models/ticket_purchase.rb

@@ -53,4 +53,15 @@ class TicketPurchase < ActiveRecord::Base
     purchase.quantity = quantity if quantity > 0
     purchase
   end
+
+  def self.update_paid_ticket_purchases(conference, user, payment)
+    paid_ticket_purchases = TicketPurchase.where(conference_id: conference.id,
+                                                 user_id: user.id,
+                                                 paid: 'f')
+    begin
+      paid_ticket_purchases.each do |ticket|
+        ticket.update_columns(paid: 't', payment_id: payment.id)
+      end
+    end
+  end
 end