后端开发|php教程
CI,CodeIgniter,框架,购物车
后端开发-php教程在商城项目中，购物车是非常重要的一环，此处留下源码，留作笔记！！！
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1. 源代码
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load->model(goodsModel,goods); $this->load->model(productModel,product); $this->load->model(goodsAttrModel,goodsAttr); } /** * [购物车]数据添加 */ public function cartAdd() { #接收购物车提交数据 $this->info = $this->input->post(); // $this->ajaxReturn($this->info); #1.验证商品库存、货品库存 $this->checkGoodsNumber(); #2.查询规格名称、价格 $this->getSpecData(); #3.组装购物车添加de数据 $cartData = $this->setCartData(); p(json_decode($this->input->cookie(cart),true)); # A、判断是否登录 if(!UID){//未登录 数据存入Cookie中//1:获取cookie中的购物车数据$cookieCartData = $this->input->cookie(cart);//2:判断cookie中数据是否为空if(empty($cookieCartData)){ //2-1:为空则表示用户没有添加过购物车 //2-1-1.设置Key-->生成购物车数据 $key = $cartData[goods_id].-.$cartData[product_id]; $cookieCart = array($key => $cartData); //2-1-2.设置购物车返回值(商品数量、总价) $this->setCartReturn(1,$cartData[goods_price]); //2-1-3.设置Cookie存储购物车数据}else{ //2-2:不为空 表示用户添加过购物车 //2-2-1.追加购物数据 $cookieCart = $this->addCartData($cartData,json_decode($cookieCartData,true)); //2-2-2.设置购物车返回值(商品数量、总价) $this->setCartReturn(count($cookieCart),array_sum(array_column($cookieCart, goods_price)));}//3:设置Cookie存储购物车数据setCookie(cart,json_encode($cookieCart),LEFT_TIME,/); }else{//已登录 数据存入数据库 } //返回购物车提示数据 $this->ajaxReturn($this->msg); } /** * 验证商品库存 */ public function checkGoodsNumber() { $this->goods->map = array(goods_id=> $this->info[goods_id],goods_number >= => $this->info[uy_number], ); $this->goods = $this->goods->find(goods_id,goods_name,goods_sn,goods_img,shop_price); if(!$this->goods){$this->msg[msg] = "商品库存不足";$this->ajaxReturn($this->msg); } #验证货品库存 $this->product->map = array(goods_id=> $this->info[goods_id],product_attr => $this->info[prod_attr],product_number >= => $this->info[uy_number], ); $this->prodData = $this->product->find(); if(!$this->prodData){$this->msg[msg] = "货品库存不足";$this->ajaxReturn($this->msg); } return true; } /** * 组合规格名称、价格 */ public function getSpecData() { $this->goodsAttr->map = inToType(explode("|", $this->info[prod_attr]),goods_attr_id); $goodsAttrInfo = $this->goodsAttr->select(goods_attr_value,goods_attr_price); $this->specData[product_attr_value] = implode("|", array_column($goodsAttrInfo, goods_attr_value)); $this->specData[product_price] = array_sum(array_column($goodsAttrInfo,goods_attr_price)); # 返回规格信息 $this->specData } /** * 组装购物车添加的数组 */ public function setCartData() { $this->cartData = array(product_id => $this->prodData[product_id],product_attr => $this->prodData[product_attr],uy_number => $this->info[uy_number],goods_price => $this->info[shop_price],goods_sum => $this->info[shop_price] * $this->info[uy_number],product_price => \,product_attr_value => \,uid=> UID, ); $this->cartData = array_merge($this->cartData,$this->goods); #若存在规格【添加规格信息】 if(!empty($this->info[prod_attr])){$this->cartData[product_price] = $this->specData[product_price];$this->cartData[product_attr_value] = $this->specData[product_attr_value]; } return $this->cartData; # 购物车 添加的总数据 $this->cartData; } /** * 设置购物车返回提示数据 * @param [商品数量,总价] */ public function setCartReturn($number,$prices) { $this->msg[code] = self::STATUS_ON; $this->msg[data] = array( umber => $number, prices => $prices, ); } /** * 购物车 新添加数据 * @param [新数据,原购物车数据] */ public function addCartData($newData,$oldData) { #组合Key $key = $newData[goods_id].-.$newData[product_id]; // #判断购物车中是否有该商品 if(isset($oldData[$key])){//1.有 合并商品数量、价格$oldData[$key][uy_number] = $oldData[$key][uy_number] + $newData[uy_number];$oldData[$key][goods_price] = $newData[goods_price];$oldData[$key][goods_sum] = $oldData[$key][uy_number] * $oldData[$key][goods_price]; }else{//2.没有 追加新商品$oldData[$key] = $newData; } #返回购物车数据 return $oldData; }}?>
2. 数据库
CREATE TABLE `shop_goods` ( `goods_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `goods_name` varchar(255) NOT NULL, `type_id` int(11) DEFAULT NULL, PRIMARY KEY (`goods_id`)) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;CREATE TABLE `shop_product` ( `product_id` int(11) unsigned NOT NULL AUTO_INCREMENT, `goods_id` int(11) NOT NULL, `goods_price` decimal(10,2) NOT NULL, `goods_num` int(11) NOT NULL, `goods_sn` varchar(50) NOT NULL, `goods_attr_id` varchar(100) NOT NULL, PRIMARY KEY (`product_id`)) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8;CREATE TABLE `shop_goods_attr` ( `goods_attr_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `goods_id` int(11) NOT NULL, `attr_id` int(11) NOT NULL, `attr_value` varchar(255) NOT NULL, PRIMARY KEY (`goods_attr_id`)) ENGINE=InnoDB AUTO_INCREMENT=126 DEFAULT CHARSET=utf8;
CI购物车总结完毕！！！
