function users(){

        global $wpdb;

        extract($_POST);

        // data
        $data = array();

        // coupon
        $data['coupon'] = $wpdb->get_row($wpdb->prepare("SELECT * FROM `".TBL_MGM_COUPON."` WHERE id=%d", $id ));

        // users
        // $data['users'] = array();
        // $data['users'] = mgm_get_all_userids(array('ID'), 'get_results');
        $meta_query = array(                        array('key'=>'_mgm_user_register_coupon','value'=>$id,'compare'=>'=','type'=>'UNSIGNED'),
            array('key'=>'_mgm_user_upgrade_coupon','value'=>$id,'compare'=>'=','type'=>'UNSIGNED'),                    array('key'=>'_mgm_user_extend_coupon','value'=>$id,'compare'=>'=','type'=>'UNSIGNED')
                            );

//error_log("starting pull");
         // fixes
        $usrs = array();
        $us = array();
        foreach($meta_query as $key) {
            $usrs = array_merge($usrs, mgm_get_users_with_meta( array($key), null, null, 'OR'));
            //$mg = mgm_get_users_with_meta( array($key), null, null, null);
            //$us = array_merge($us, $mg);
        }

//error_log(print_r($us,true));
        $data['users'] = $usrs;
        //$data['users'] = mgm_get_users_with_meta( $meta_query, null, null, 'OR' );

//error_log(print_r($data,true));
//error_log("finish pull");

        // load template view
        $this->load->template('coupons/users', array('data'=>$data));

    }