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38 lines
811 B
38 lines
811 B
<?php
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namespace app\common\model\sharing;
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use app\common\model\BaseModel;
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/**
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* 拼团商品SKU模型
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* Class GoodsSku
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* @package app\common\model\sharing
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*/
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class GoodsSku extends BaseModel
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{
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protected $name = 'sharing_goods_sku';
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protected $append = ['diff_price'];
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/**
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* 规格图片
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* @return \think\model\relation\HasOne
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*/
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public function image()
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{
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$module = self::getCalledModule() ?: 'common';
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return $this->hasOne("app\\{$module}\\model\\UploadFile", 'file_id', 'image_id');
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}
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/**
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* 获取器：拼团价与划线价差额
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* @param $value
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* @param $data
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* @return mixed
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*/
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public function getDiffPriceAttr($value, $data)
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{
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return max(0, $data['line_price'] - $data['sharing_price']);
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}
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}
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