luck-draw/app/model/Sku.php

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2022-02-22 09:27:27 +00:00
<?php
namespace app\model;
use think\Model;
use think\model\relation\HasOne;
class Sku extends Base
{
// SKU 状态
public const STATUS_ON = '1'; // 出售中
public const STATUS_OFF = '0'; // 已下架
// SKU 积分兑换限制
public const ALLOW_ONLY_BUY = '0';
public const ALLOW_BUY_AND_SCORE = '1';
public const ALLOW_ONLY_SCORE = '2';
public static function statusTextList(): array
{
return [
(string)self::STATUS_ON => '在售',
(string)self::STATUS_OFF => '已下架',
];
}
public static function allowScoreTextList(): array
{
return [
(string)self::ALLOW_ONLY_BUY => '购买',
(string)self::ALLOW_BUY_AND_SCORE => '购买或积分兑换',
(string)self::ALLOW_ONLY_SCORE => '积分兑换',
];
}
public static function onAfterInsert(Model $item)
{
$item->sort = $item->id;
$item->save();
}
/**
* 模型关联:商品分类
*
* @return HasOne
*/
public function category(): HasOne
{
return $this->hasOne(SkuCategory::class, 'id', 'category_id');
}
/**
* 生成 SKU coding
* 年份 + 2位随机码 + 时间戳(秒[10] + 微妙[4]
* @length 18
*/
public static function generateCoding(): string
{
$randStr = str_pad(mt_rand(1,99), 2, '0', STR_PAD_LEFT);
$prefix = date('y').$randStr;
$mt = microtime(true);
list($time, $micro) = explode('.', $mt);
$micro = str_pad($micro, 4, '0', STR_PAD_RIGHT);
$micro = substr($micro, 0, 4);
return $prefix.$time.$micro;
}
/**
* @return HasOne
*/
public function spu(): HasOne
{
return $this->hasOne(Spu::class, 'id', 'spu_id');
}
/**
* 关联活动商品
*
* @return HasOne
*/
public function activity(): HasOne
{
return $this->hasOne(SpuActivity::class, 'id', 'spu_activity_id');
}
}