add node id to earlyaccess codes table

booking.regn_form.inc

@@ -1308,7 +1308,8 @@ function _booking_form_submit_post_triggers($node)
 
     //update the database to mark the code as being unavailable
     db_update('booking_earlyaccess_codes')->fields(array(
-      'booking_earlyaccess_code_avail' => 'N'
+      'booking_earlyaccess_code_avail' => 'N',
+      'booking_earlyaccess_code_nid' => $node->nid,
     ))->condition('cid', $node->booking_earlyaccess_code_id)->execute();    
   }