auti_boofly_mush_api/app/models/store/StoreCombinationAttrValue.php

<?php
/**
 * @author: lofate
 * @day: 2019/12/19
 */

namespace app\models\store;

use crmeb\basic\BaseModel;
use crmeb\traits\ModelTrait;

class StoreCombinationAttrValue extends BaseModel
{
    /**
     * 模型名称
     * @var string
     */
    protected $name = 'store_combination_attr_value';

    use ModelTrait;

    protected $insert = ['unique'];

    protected function setSukAttr($value)
    {
        return is_array($value) ? implode(',', $value) : $value;
    }

    protected function setUniqueAttr($value, $data)
    {
        if (is_array($data['suk'])) $data['suk'] = $this->setSukAttr($data['suk']);
        return self::uniqueId($data['product_id'] . $data['suk'] . uniqid(true));
    }

    public static function decProductAttrStock($productId, $unique, $num)
    {
        return false !== self::where('product_id', $productId)->where('unique', $unique)
                ->dec('stock', $num)->inc('sales', $num)->update();
    }

    public static function uniqueId($key)
    {
        return substr(md5($key), 12, 8);
    }

    public static function clearProductAttrValue($productId)
    {
        return self::where('product_id', $productId)->delete();
    }
}