update dropdown list with option from module, after_save and after_delete logic hook

Visite_Hook.php

<?php

if (!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
require_once('include/entryPoint.php');
require_once('modules/Administration/QuickRepairAndRebuild.php');

class Visite_Hook
{
    function update_self($bean, $event, $arguments)
    {
//logic
        $dropdownlistsRebuild = $GLOBALS['app_list_strings']['NEWLIST_list'];

        require_once('modules/Studio/DropDowns/DropDownHelper.php');
        $drop = new DropDownHelper;
        $count = 0;
        $sq = new SugarQuery();
        $sq->select(array('name'));
        $sq->from(BeanFactory::getBean('DP_visiteobj'));
        $sq->orderBy('date_entered', 'ASC');
        $result = $sq->execute();

        $params['dropdown_name'] = 'NEWLIST_list';
        $params['dropdown_lang'] = 'fr_FR';
        foreach((array) $result as $row)
        {
            $aTmp1[] = $row['name']; // flatten the array get only the name for comparison between records in the module and our objective list

            $params['slot_' . $count] = $count;
            $params['key_' . $count] = $count;//using the count for the list key to allow editing of dependent fields.
            //$params['key_' . $count] = $row['id'];
            $params['value_' . $count] = $row['name'];
            $count++;
        }



        $compare = array_diff($aTmp1,$dropdownlistsRebuild);
       // $GLOBALS['log']->fatal($dropdownlistsRebuild);
        if (!$compare)
        {
            $GLOBALS['log']->fatal('>>>No changes detected in objective list ' . print_r($compare, true));
        }
        else
        {
            $GLOBALS['log']->fatal('>>>Changes detected in objective list ' . print_r($compare, true));
            if ($count != 0 ){
                global $sugar_config;
                    global $locale;
                try {
                    $drop->saveDropDown($params); //save the new list
                    //If the exception is thrown, this text will not be shown
                   // $GLOBALS['log']->fatal($params);
                }

                catch(Exception $e) {
                    $GLOBALS['log']->fatal($e->getMessage());

                }



                global $current_user;
                //get current user to allow non-admin to run the logic hook
                $current_user = new User();
                $current_user->getSystemUser();

                global $moduleList;
                $repair= new RepairAndClear();
                $repair->repairAndClearAll(array('repairMetadataAPICache'),array(translate('DP_visiteobj')), true,false);
                $exit_on_cleanup = true;

                sugar_cleanup(false);

                if(class_exists('DBManagerFactory')) {
                    $db = DBManagerFactory::getInstance();
                    $db->disconnect();
                }

                 if($exit_on_cleanup) exit;// not needed on sugar 7
            }

        }




    }
}