$sql = 'SELECT '.$object->IDField.' FROM '.$object->TableName.' WHERE ('.$parent_info['ForeignKey'].' = '.$parent_info['ParentId'].') AND (EventId = '.$email_event_id.')';
$sql = 'SELECT '.$object->IDField.' FROM '.$object->TableName.' WHERE ('.$parent_info['ForeignKey'].' = '.$parent_info['ParentId'].') AND (EventId = '.$email_event_id.')';