lanzu_api_2021-12-26/app/Service/v3/Implementations/ShopCartService.php

<?php

namespace App\Service\v3\Implementations;

use App\Model\v3\ShoppingCart;
use App\Model\v3\Store;
use App\Service\v3\Interfaces\ShopCartServiceInterface;
use Hyperf\DbConnection\Db;

class ShopCartService implements ShopCartServiceInterface
{
    public function do()
    {
        $storeIds = Db::table('lanzu_shopping_cart')->where('user_id',15)->pluck('store_id')->toArray();
        $res = Store::query()->with(['ShoppingCart' => function($query) {
                $query->with('goods');
            }])->whereIn('id',$storeIds)
            ->get();
        foreach ($res as &$k){
            $k->subtotal = '99.90';
        }
        return $res;
    }

    public function check($goodsId)
    {
        return mt_rand(0,6);
    }

    public function undo()
    {
        $storeIds = Db::table('lanzu_shopping_cart')->where('user_id',198)->pluck('store_id')->toArray();
        $res = Store::query()->with(['ShoppingCart' => function($query) {
            $query->with('goods');
        }])->whereIn('id',$storeIds)
            ->get();
        foreach ($res as &$k){
            $k->subtotal = '99.90';
        }
        return $res;
    }

    public function countGoods()
    {
        return mt_rand(1,100);
    }

    public function getTotal()
    {
        $randomFloat = rand(100,999)/100;
        return $randomFloat;
    }
}