btgym_php/source/application/store/model/Express.php

<?php

namespace app\store\model;

use app\common\model\Express as ExpressModel;

class Express extends ExpressModel
{
    /**
     * 添加新记录
     * @param $data
     * @return false|int
     */
    public function add($data)
    {
        $data['wxapp_id'] = self::$wxapp_id;
        return $this->allowField(true)->save($data);
    }

    /**
     * 编辑记录
     * @param $data
     * @return bool|int
     */
    public function edit($data)
    {
        return $this->allowField(true)->save($data);
    }

    /**
     * 删除记录
     * @return bool|int
     */
    public function remove()
    {
        // 判断当前物流公司是否已被订单使用
        $Order = new Order;
        if ($orderCount = $Order->where(['express_id' => $this['express_id']])->count()) {
            $this->error = '当前物流公司已被' . $orderCount . '个订单使用，不允许删除';
            return false;
        }
        return $this->delete();
    }

}