jh-admin/addon/fenxiao/event/WeightOrder.php

<?php

namespace addon\fenxiao\event;
class WeightOrder
{
    public function handle($param)
    {
        if (isset($param['relate_id'])) {
            $model  = new \addon\fenxiao\model\WeightOrder();
            $result = $model->calculate($param['relate_id']);
            return $result;
        }
        return [];
    }
}