1 line
9.3 KiB
PHP
1 line
9.3 KiB
PHP
<?php
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namespace app\api\model\food;
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use think\facade\Cache;
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use hema\Helper;
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/**
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* 购物车管理
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*/
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class Cart
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{
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public $error = ''; //错误信息
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private $applet_id; //模板id
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private $shop_id; //门店id
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private $user_id; //用户id
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private $table_id;
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private $cart = []; //购物车列表
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private $clear = false; //是否清空购物车
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/**
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* 构造方法
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*/
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public function __construct($applet_id, $shop_id, $user_id, $table_id='')
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{
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$this->applet_id = $applet_id;
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$this->shop_id = $shop_id;
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$this->user_id = $user_id;
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$this->table_id = $table_id;
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$cart = Cache::get('food_cart_' . $applet_id) ?: [];
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if(isset($cart[$shop_id])){
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$cart = $cart[$shop_id];
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}
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if(empty($table_id)){
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if(isset($cart['user_' . $user_id])){
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$this->cart = $cart['user_' . $user_id];
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}
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}else{
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if(isset($cart['table_' . $table_id])){
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$this->cart = $cart['table_' . $table_id];
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}
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}
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}
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/**
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* 获取购物车内容
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*/
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public function getCart()
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{
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return $this->cart;
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}
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public function getList($order_mode)
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{
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// 商品列表
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$goodsList = [];
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$goodsIds = array_unique(array_column($this->cart, 'goods_id'));
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foreach ((new Goods)->getListByIds($goodsIds) as $goods) {
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$goodsList[$goods['goods_id']] = $goods;
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}
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$pack_price = 0;//餐盒费
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$min_price = 0;//起送价价
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// 购物车商品列表
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$cartList = [];
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foreach ($this->cart as $key => $cart) {
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// 判断商品不存在则自动删除
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if (!isset($goodsList[$cart['goods_id']])) {
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$this->delete($cart['goods_id'], $cart['goods_sku_id']);
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continue;
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}
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$goods = clone $goodsList[$cart['goods_id']];
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// 商品sku信息
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$goods['goods_sku_id'] = $cart['goods_sku_id'];
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// 商品sku不存在则自动删除
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if (!$goods['goods_sku'] = $goods->getGoodsSku($cart['goods_sku_id'])) {
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$this->delete($cart['goods_id'], $cart['goods_sku_id']);
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continue;
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}
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// 判断商品是否下架
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if ($goods['goods_status']['value'] != 10) {
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$this->setError('很抱歉，商品 [' . $goods['goods_name'] . '] 已下架');
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}
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//计算餐盒费
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if($order_mode == 20 OR $order_mode == 30){
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if($goods['pack_price']>0){
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$pack_price = $pack_price + $goods['pack_price']*$cart['goods_num'];
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}
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}
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// 商品单价
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$goods['goods_price'] = $goods['goods_sku']['goods_price'];
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// 商品总价
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$goods['total_num'] = $cart['goods_num'];
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$goods['total_price'] = $total_price = bcmul($goods['goods_price'], $cart['goods_num'], 2);
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$cartList[] = $goods->hidden(['category', 'content', 'spec']);
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}
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// 商品总金额
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$orderTotalPrice = Helper::getArrayColumnSum($cartList, 'total_price');
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//餐盒费加入总价
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$order_pay_price = $orderTotalPrice + $pack_price;
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//如果是外卖
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if($order_mode == 20){
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$delivery = Setting::getItem('delivery');
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if($delivery['min_price'] > $order_pay_price){
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$min_price = $delivery['min_price'] - $order_pay_price;// 起送价价
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}
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}
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return [
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'coupon_list' => null, //优惠券列表
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'gift' => null,//赠品
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'goods_list' => $cartList, // 商品列表
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'order_total_num' => $this->getTotalNum(), // 商品总数量
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'order_total_price' => Helper::number2($orderTotalPrice),// 商品总金额
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'order_pay_price' => Helper::number2($order_pay_price), // 实际支付金额+餐盒费
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'pack_price' => Helper::number2($pack_price), // 餐盒费用
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'min_price' => Helper::number2($min_price),//最低启送价
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'delivery_price' => Helper::number2(0),//配送费用
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'activity_price' => Helper::number2(0),//优惠费用
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'vip_price' => Helper::number2(0),//优惠费用
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'address' => null,//收货地址
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'intra_region' => false,//是否超出配送范围
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'free_delivery' => false,//免配送费
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'has_error' => $this->hasError(),
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'error_msg' => $this->getError(),
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];
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}
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/**
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* 购物车操作
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*/
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public function edit($data)
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{
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//商品数量为空，什么也不做
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if($data['goods_num'] == ''){
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return true;
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}
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//商品数量0为删除
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if($data['goods_num'] == 0){
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return $this->delete($data);
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}
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// 购物车商品索引
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$index = $data['goods_id'] . '_' . $data['goods_sku_id'];
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// 商品信息
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$goods = Goods::detail($data['goods_id']);
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// 判断商品是否下架
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if ($goods['goods_status']['value'] != 10) {
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$this->setError('很抱歉，该商品已下架');
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return false;
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}
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$data['create_time'] = time();
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//判断起售数量
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if($data['goods_num'] < (int)$goods['start_sale']){
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$data['goods_num'] = (int)$goods['start_sale'];
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}
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$this->cart[$index] = $data;
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return true;
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}
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/**
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* 添加购物车
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*/
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public function add($data)
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{
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// 购物车商品索引
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$index = $data['goods_id'] . '_' . $data['goods_sku_id'];
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// 商品信息
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$goods = Goods::detail($data['goods_id']);
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// 商品sku信息
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//$goods['goods_sku'] = $goods->getGoodsSku($data['goods_sku_id']);
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// 判断商品是否下架
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if ($goods['goods_status']['value'] != 10) {
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$this->setError('很抱歉，该商品已下架');
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return false;
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}
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if(!empty($data['cart_type']) && intval($data['cart_type']) === 2){
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unset($data['cart_type']);
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$data['create_time'] = time();
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if(isset($this->cart[$index])){
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$this->cart[$index]['goods_num'] = $this->cart[$index]['goods_num'] + $data['goods_num'];
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}else{
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// $data['goods_num'] = $goods['start_sale'];
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$this->cart[$index] = $data;
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}
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}else{
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$data['create_time'] = time();
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if(isset($this->cart[$index])){
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$this->cart[$index]['goods_num'] = $this->cart[$index]['goods_num'] + $data['goods_num'];
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}else{
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$data['goods_num'] = $goods['start_sale'];
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$this->cart[$index] = $data;
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}
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}
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return true;
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}
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/**
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* 减少购物车中某商品数量
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*/
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public function sub($data)
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{
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$index = $data['goods_id'] . '_' . $data['goods_sku_id'];
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$goods_num = $this->cart[$index]['goods_num'] - 1;// 商品信息
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$goods = Goods::detail($data['goods_id']);
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if($goods_num >= 1 and $goods_num >= $goods['start_sale']){
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$this->cart[$index]['goods_num'] = $goods_num;
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}else{
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unset($this->cart[$index]); //清空该商品
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}
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return true;
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}
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/**
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* 删除购物车中指定商品
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*/
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public function delete($data)
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{
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//为空是商城批量删除
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if(empty($data['goods_id'])){
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$indexArr = strpos( $data['goods_sku_id'], ',') !== false ? explode(',', $data['goods_sku_id']) : [ $data['goods_sku_id']];
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foreach ($indexArr as $index) {
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if (isset($this->cart[$index])) unset($this->cart[$index]);
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}
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}else{
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$index = $data['goods_id'] . '_' . $data['goods_sku_id'];
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if (isset($this->cart[$index])) unset($this->cart[$index]);
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}
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return true;
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}
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/**
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* 获取当前用户购物车商品总数量
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*/
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public function getTotalNum()
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{
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return array_sum(array_column($this->cart, 'goods_num'));
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}
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/**
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* 析构方法
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* 将cart数据保存到缓存文件
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*/
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public function __destruct()
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{
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if($this->clear !== true){
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$cart = Cache::get('food_cart_' . $this->applet_id) ?: [];
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if(empty($this->table_id)){
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$cart[$this->shop_id]['user_' . $this->user_id] = $this->cart;
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}else{
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$cart[$this->shop_id]['table_' . $this->table_id] = $this->cart;
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}
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Cache::set('food_cart_' . $this->applet_id, $cart, 86400);
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}
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}
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/**
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* 清空当前用户购物车
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*/
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public function clearAll()
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{
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$this->clear = true;
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$cart = Cache::get('food_cart_' . $this->applet_id) ?: [];
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if(empty($this->table_id)){
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$cart[$this->shop_id]['user_' . $this->user_id] = [];
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}else{
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$cart[$this->shop_id]['table_' . $this->table_id] = [];
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}
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Cache::set('food_cart_' . $this->applet_id,$cart, 86400);
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}
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/**
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* 设置错误信息
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*/
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private function setError($error)
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{
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empty($this->error) && $this->error = $error;
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}
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/**
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* 是否存在错误
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*/
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private function hasError()
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{
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return !empty($this->error);
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}
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/**
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* 获取错误信息
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*/
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public function getError()
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{
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return $this->error;
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}
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} |