baseXX/application/wap/model/store/StoreCart.php

<?php
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// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2016~2020 https://www.crmeb.com All rights reserved.
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// | Author: CRMEB Team <admin@crmeb.com>
// +----------------------------------------------------------------------


namespace app\wap\model\store;

use basic\ModelBasic;
use traits\ModelTrait;

class StoreCart extends ModelBasic
{
    use ModelTrait;

    protected $insert = ['add_time'];

    protected function setAddTimeAttr()
    {
        return time();
    }

    public static function setCart($uid,$product_id,$cart_num = 1,$product_attr_unique = '',$type='product',$is_new = 0,$combination_id=0,$seckill_id=0,$integral_id=0)
    {
        if($cart_num < 1) $cart_num = 1;
        if(!StoreProduct::isValidProduct($product_id))
            return self::setErrorInfo('该产品已下架或删除');
        if(StoreProduct::getProductStock($product_id,$product_attr_unique) < $cart_num)
            return self::setErrorInfo('该产品库存不足');
        $where = [
            'type'=>$type,
            'uid'=>$uid,
            'product_id'=>$product_id,
            'product_attr_unique'=>$product_attr_unique,
            'is_new'=>$is_new,
            'is_pay'=>0,
            'is_del'=>0,
            'combination_id'=>$combination_id,
            'seckill_id'=>$seckill_id,
            'integral_id'=>$integral_id
        ];
        if($cart = self::where($where)->find()){
            $cart->cart_num = $cart_num;
            $cart->add_time = time();
            $cart->save();
            return $cart;
        }else{
            return self::set(compact('uid','product_id','cart_num','product_attr_unique','is_new','type','combination_id','seckill_id','integral_id'));
        }

    }

    public static function removeUserCart($uid,$ids)
    {
        return self::where('uid',$uid)->where('id','IN',$ids)->update(['is_del'=>1]);
    }

    public static function getUserCartNum($uid,$type)
    {
        return self::where('uid',$uid)->where('type',$type)->where('is_pay',0)->where('is_del',0)->where('is_new',0)->count();
    }

    public static function changeUserCartNum($cartId,$cartNum,$uid)
    {
        if(!self::be(['uid'=>$uid,'id'=>$cartId,'cart_num'=>$cartNum])){
            return self::where('uid',$uid)->where('id',$cartId)->update(['cart_num'=>$cartNum]);
        }else{
            return true;
        }
    }

    public static function getUserProductCartList($uid,$cartIds='',$status=0,$is_vip)
    {
        $productInfoField = 'id,image,slider_image,price,cost,ot_price,vip_price,postage,mer_id,give_gold_num,free_shipping,cate_id,sales,stock,store_name,unit_name,is_show,is_del,is_postage';
        $model = new self();
        $valid = $invalid = [];
        if($cartIds)
            $model = $model->where('uid',$uid)->where('type','product')->where('is_pay',0)
                ->where('is_del',0);
        else
            $model = $model->where('uid',$uid)->where('type','product')->where('is_pay',0)->where('is_new',0)
                ->where('is_del',0);
        if($cartIds) $model->where('id','IN',$cartIds);
        $list = $model->select()->toArray();
        if(!count($list)) return compact('valid','invalid');
        foreach ($list as $k=>$cart) {
            $product = StoreProduct::field($productInfoField)
                ->find($cart['product_id'])->toArray();
            $cart['productInfo'] = $product;
            //商品不存在
            if (!$product) {
                $model->where('id', $cart['id'])->update(['is_del' => 1]);
                //商品删除或无库存
            } else if (!$product['is_show'] || $product['is_del'] || !$product['stock']) {
                $invalid[] = $cart;
            } else {
                $cart['truePrice'] =$is_vip ? (isset($cart['productInfo']['vip_price']) ? (float)$cart['productInfo']['vip_price']: (float)$cart['productInfo']['price']) : (float)$cart['productInfo']['price'];
                $cart['costPrice'] = (float)$cart['productInfo']['cost'];
                $cart['trueStock'] = $cart['productInfo']['stock'];
                $valid[] = $cart;
            }
        }
        foreach ($valid as $k=>$cart){
            if($cart['trueStock'] < $cart['cart_num']){
                $cart['cart_num'] = $cart['trueStock'];
                $model->where('id',$cart['id'])->update(['cart_num'=>$cart['cart_num']]);
                $valid[$k] = $cart;
            }
        }
        return compact('valid','invalid');
    }

}