text: from django.contrib import admin
  
  from paypal import models
  
  
  class ExpressTransactionAdmin(admin.ModelAdmin):
      list_display = ['method', 'amount', 'currency', 'correlation_id', 'ack',
                      'token', 'error_code', 'error_message', 'date_created']
      readonly_fields = [
          'method',
          'version',
          'amount',
          'currency',
          'ack',
          'correlation_id',
          'token',
          'error_code',
          'error_message',
          'raw_request',
          'raw_response',
          'response_time',
          'date_created',
          'request',
          'response']
  
  
  admin.site.register(models.ExpressTransaction, ExpressTransactionAdmin)
  