antshop/backend/modules/shop/logic/ShopManager.php

<?php
namespace backend\modules\shop\logic;

use Yii;
use yii\base\Exception;

class CommonManager
{
    //单位类型
    const UNIT_TYPE_WEIGHT = 1; //重量
    const UNIT_TYPE_MONEY = 2;  //金额
    const UNIT_TYPE_ITEM = 3;   //件

    /**
     * @param $type
     * @param $value
     * @return int
     * 比例转换
     */
    public static function proportionalConversion($type, $value)
    {
        switch ($type) {
            case self::UNIT_TYPE_WEIGHT:
                return 1000;
                break;
            case self::UNIT_TYPE_MONEY:
                return 100;
                break;
            case self::UNIT_TYPE_ITEM:
                return 1;
                break;
            default:
                return 1;
        }
    }
}