初始化项目

server-tp6/app/api/service/Cart.php

@@ -0,0 +1,171 @@
+<?php
+// +----------------------------------------------------------------------
+// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
+// +----------------------------------------------------------------------
+// | Author: 萤火科技 <admin@yiovo.com>
+// +----------------------------------------------------------------------
+declare (strict_types=1);
+
+namespace app\api\service;
+
+use app\api\model\Cart as CartModel;
+use app\api\model\Goods as GoodsModel;
+use app\api\service\User as UserService;
+use app\common\library\helper;
+use app\common\service\BaseService;
+use cores\exception\BaseException;
+
+/**
+ * 服务类: 购物车
+ * Class Cart
+ * @package app\api\service
+ */
+class Cart extends BaseService
+{
+    /**
+     * 购物车商品列表(用于购物车页面)
+     * @param array $cartIds 购物车记录ID集
+     * @param bool $isGoodsGradeMoney 是否设置商品会员价
+     * @return array|\think\Collection
+     * @throws BaseException
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\DbException
+     * @throws \think\db\exception\ModelNotFoundException
+     */
+    public function getList(array $cartIds = [], bool $isGoodsGradeMoney = true)
+    {
+        // 购物车列表
+        $cartList = $this->getCartList($cartIds);
+        // 整理商品ID集
+        $goodsIds = helper::getArrayColumn($cartList, 'goods_id');
+        if (empty($goodsIds)) return [];
+        // 获取商品列表
+        $goodsList = $this->getGoodsListByIds($goodsIds, $isGoodsGradeMoney);
+        // 整理购物车商品列表
+        foreach ($cartList as $cartIdx => $item) {
+            // 查找商品, 商品不存在则删除该购物车记录
+            $result = $this->findGoods($goodsList, $item, $isGoodsGradeMoney);
+            if ($result !== false) {
+                $cartList[$cartIdx]['goods'] = $result;
+            } else {
+                $this->clear([$item['id']]);
+                unset($cartList[$cartIdx]);
+            }
+        }
+        return $cartList;
+    }
+
+    /**
+     * 获取购物车商品列表(用于订单结算台)
+     * @param array $cartIds 购物车记录ID集
+     * @return array
+     * @throws BaseException
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\DbException
+     * @throws \think\db\exception\ModelNotFoundException
+     */
+    public function getOrderGoodsList(array $cartIds = []): array
+    {
+        // 购物车列表
+        $cartList = $this->getList($cartIds, false);
+        // 订单商品列表
+        $goodsList = [];
+        foreach ($cartList as $item) {
+            // 商品记录
+            $goods = $item['goods'];
+            // 商品单价
+            $goods['goods_price'] = $goods['skuInfo']['goods_price'];
+            // 商品购买数量
+            $goods['total_num'] = $item['goods_num'];
+            // 商品SKU索引
+            $goods['goods_sku_id'] = $item['goods_sku_id'];
+            // 商品购买总金额
+            $goods['total_price'] = helper::bcmul($goods['goods_price'], $item['goods_num']);
+            $goodsList[] = $goods;
+        }
+        return $goodsList;
+    }
+
+    /**
+     * 检索查询商品
+     * @param mixed $goodsList 商品列表
+     * @param CartModel $item 购物车记录
+     * @param bool $isGoodsGradeMoney 是否设置商品会员价
+     * @return false|mixed
+     * @throws BaseException
+     */
+    private function findGoods($goodsList, CartModel $item, bool $isGoodsGradeMoney = true)
+    {
+        // 查找商品记录
+        $goodsInfo = helper::getArrayItemByColumn($goodsList, 'goods_id', $item['goods_id']);
+        if (empty($goodsInfo)) {
+            return false;
+        }
+        // 获取当前选择的商品SKU信息
+        $goodsInfo['skuInfo'] = GoodsModel::getSkuInfo($goodsInfo, $item['goods_sku_id'], $isGoodsGradeMoney);
+        if (empty($goodsInfo['skuInfo'])) {
+            return false;
+        }
+        // 商品封面 (优先sku封面)
+        $goodsInfo['goods_image'] = $goodsInfo['skuInfo']['goods_image'] ?: $goodsInfo['goods_image'];
+        // 这里需要用到clone, 因对象是引用传递 后面的值会覆盖前面的
+        return clone $goodsInfo;
+    }
+
+    /**
+     * 删除购物车中指定记录
+     * @param array $cartIds
+     * @return bool
+     * @throws BaseException
+     */
+    public function clear(array $cartIds = []): bool
+    {
+        $model = new CartModel;
+        return $model->clear($cartIds);
+    }
+
+    /**
+     * 根据商品ID集获取商品列表
+     * @param array $goodsIds
+     * @param bool $isGoodsGradeMoney 是否设置会员折扣价
+     * @return mixed
+     */
+    private function getGoodsListByIds(array $goodsIds, bool $isGoodsGradeMoney = true)
+    {
+        $model = new GoodsModel;
+        return $model->isGoodsGradeMoney($isGoodsGradeMoney)
+            ->getListByIdsFromApi($goodsIds)
+            ->hidden(GoodsModel::getHidden(['goods_images']));
+    }
+
+    /**
+     * 获取当前用户的购物车记录
+     * @param array $cartIds 购物车记录ID集
+     * @return \think\Collection
+     * @throws BaseException
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\DbException
+     * @throws \think\db\exception\ModelNotFoundException
+     */
+    private function getCartList(array $cartIds = []): \think\Collection
+    {
+        // 当前用户ID
+        $userId = UserService::getCurrentLoginUserId();
+        // 购物车记录模型
+        $model = new CartModel;
+        // 检索查询条件
+        $filter = [];
+        if (!empty($cartIds)) {
+            $filter[] = ['id', 'in', $cartIds];
+        }
+        // 查询列表记录
+        return $model->where($filter)
+            ->where('user_id', '=', $userId)
+            ->where('is_delete', '=', 0)
+            ->select();
+    }
+}