<?php

namespace app\mall\model;


class MallProductSpec extends Base
{

    /**
     * 查找所有规格
     * @date 2022-12-13
     */
    public function listSpec($where, $field = '*', $order = '')
    {
        if (empty($order)) {
            $order = 'id desc';
        }

        return $this->with(['mallProductSpecItem'])->field($field)->where($where)->order($order)->select();
    }


    /**
     * 一对多关联规格项
     */
    public function mallProductSpecItem()
    {
        return $this->hasMany('MallProductSpecItem', 'spec_id', 'spec_id')->field('spec_id,spec_item_id,spec_item_value');
    }
}