Fix ticket PDF generation by passing data directly to print_qr_code

app/controllers/tickets_controller.rb

@@ -3,7 +3,7 @@
 # This controller now primarily handles legacy redirects and backward compatibility
 # Most ticket creation functionality has been moved to OrdersController
 class TicketsController < ApplicationController
-  before_action :authenticate_user!, only: [ :payment_success, :payment_cancel ]
+  before_action :authenticate_user!, only: [ :payment_success, :payment_cancel, :show, :download_ticket ]
   before_action :set_event, only: [ :checkout, :retry_payment ]
 
 
@@ -49,7 +49,10 @@ class TicketsController < ApplicationController
   end
 
   def show
-    @ticket = current_user.orders.joins(:tickets).find(params[:ticket_id])
+    @ticket = Ticket.joins(order: :user).includes(:event, :ticket_type, order: :user).find_by(
+      tickets: { id: params[:ticket_id] },
+      orders: { user_id: current_user.id }
+    )
     @event = @ticket.event
   rescue ActiveRecord::RecordNotFound
     redirect_to dashboard_path, alert: "Billet non trouvé"
@@ -58,7 +61,10 @@ class TicketsController < ApplicationController
   # Download PDF ticket - only accessible by ticket owner
   def download_ticket
     # Find ticket and ensure it belongs to current user
-    @ticket = current_user.orders.joins(:tickets).find_by(tickets: { id: params[:ticket_id] })
+    @ticket = Ticket.joins(order: :user).includes(:event, :ticket_type, order: :user).find_by(
+      tickets: { id: params[:ticket_id] },
+      orders: { user_id: current_user.id }
+    )
     
     if @ticket.nil?
       redirect_to dashboard_path, alert: "Billet non trouvé ou vous n'avez pas l'autorisation d'accéder à ce billet"

app/services/ticket_pdf_generator.rb

@@ -91,8 +91,8 @@ class TicketPdfGenerator
         raise "QR code data is empty or invalid"
       end
 
-      qrcode = RQRCode::QRCode.new(qr_code_data)
+      # Generate QR code - prawn-qrcode expects the data string directly
-      pdf.print_qr_code(qrcode, extent: 120, align: :center)
+      pdf.print_qr_code(qr_code_data, extent: 120, align: :center)
 
       pdf.move_down 15