public function defaultSettings()
    {

        //Update the users first and last name
        if (!defined('AD_UPDATE_NAME')) {
            define('AD_UPDATE_NAME', true);
        }

        //Update the users email
        if (!defined('AD_UPDATE_EMAIL')) {
            define('AD_UPDATE_EMAIL', true);
        }

        //Update the users meta data
        if (!defined('AD_UPDATE_META')) {
            define('AD_UPDATE_META', true);
        }

        //Update the users meta data
        if (!defined('AD_META_PREFIX')) {
            define('AD_META_PREFIX', "ad_");
        }

        //Save the password entered by the user (this decreases the security)
        if (!defined('AD_SAVE_PASSWORD')) {
            define('AD_SAVE_PASSWORD', false);
        }

        //Create a random passowrd
        if (!defined('AD_RANDOM_PASSWORD')) {
            define('AD_RANDOM_PASSWORD', true);
        }

        //Bulk import off by default
        if (!defined('AD_BULK_IMPORT')) {
            define('AD_BULK_IMPORT', false);
        }

        //Bulk import default role
        if (!defined('AD_BULK_IMPORT_ROLE')) {
            define('AD_BULK_IMPORT_ROLE', "subscriber");
        }

        //Propagate role
        if (!defined('AD_BULK_IMPORT_PROPAGATE')) {
            define('AD_BULK_IMPORT_PROPAGATE', true);
        }

        //Activate cleaning actions
        if (!defined('AD_CLEANING')) {
            define('AD_CLEANING', true);
        }
    }