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小編給大家分享一下CodeIgniter框架如何實現購物車功能,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
1. 源代碼
<?php defined('BASEPATH') OR exit('No direct script access allowed'); class cart extends Home_Controller { private $info = array(); #前臺提交數據 private $specData = array(); #規格信息 private $prodData = array(); #貨品組合信息 private $cartData = array(); #購物車入庫數據 /** * 構造函數 */ public function __construct() { parent::__construct(); $this->load->model('goodsModel','goods'); $this->load->model('productModel','product'); $this->load->model('goodsAttrModel','goodsAttr'); } /** * [購物車]數據添加 */ public function cartAdd() { #接收購物車提交數據 $this->info = $this->input->post(); // $this->ajaxReturn($this->info); #1.驗證商品庫存、貨品庫存 $this->checkGoodsNumber(); #2.查詢規格名稱、價格 $this->getSpecData(); #3.組裝購物車添加de數據 $cartData = $this->setCartData(); p(json_decode($this->input->cookie('cart'),true)); # 一、判斷是否登錄 if(!UID){ //未登錄 數據存入Cookie中 //1:獲取cookie中的購物車數據 $cookieCartData = $this->input->cookie('cart'); //2:判斷cookie中數據是否為空 if(empty($cookieCartData)){ //2-1:為空則表示用戶沒有添加過購物車 //2-1-1.設置Key-->生成購物車數據 $key = $cartData['goods_id'].'-'.$cartData['product_id']; $cookieCart = array($key => $cartData); //2-1-2.設置購物車返回值(商品數量、總價) $this->setCartReturn(1,$cartData['goods_price']); //2-1-3.設置Cookie存儲購物車數據 }else{ //2-2:不為空 表示用戶添加過購物車 //2-2-1.追加購物數據 $cookieCart = $this->addCartData($cartData,json_decode($cookieCartData,true)); //2-2-2.設置購物車返回值(商品數量、總價) $this->setCartReturn(count($cookieCart),array_sum(array_column($cookieCart, 'goods_price'))); } //3:設置Cookie存儲購物車數據 setCookie('cart',json_encode($cookieCart),LEFT_TIME,'/'); }else{ //已登錄 數據存入數據庫 } //返回購物車提示數據 $this->ajaxReturn($this->msg); } /** * 驗證商品庫存 */ public function checkGoodsNumber() { $this->goods->map = array( 'goods_id' => $this->info['goods_id'], 'goods_number >=' => $this->info['buy_number'], ); $this->goods = $this->goods->find('goods_id,goods_name,goods_sn,goods_img,shop_price'); if(!$this->goods){ $this->msg['msg'] = "商品庫存不足"; $this->ajaxReturn($this->msg); } #驗證貨品庫存 $this->product->map = array( 'goods_id' => $this->info['goods_id'], 'product_attr' => $this->info['prod_attr'], 'product_number >=' => $this->info['buy_number'], ); $this->prodData = $this->product->find(); if(!$this->prodData){ $this->msg['msg'] = "貨品庫存不足"; $this->ajaxReturn($this->msg); } return true; } /** * 組合規格名稱、價格 */ 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')); # 返回規格信息 $this->specData } /** * 組裝購物車添加的數組 */ public function setCartData() { $this->cartData = array( 'product_id' => $this->prodData['product_id'], 'product_attr' => $this->prodData['product_attr'], 'buy_number' => $this->info['buy_number'], 'goods_price' => $this->info['shop_price'], 'goods_sum' => $this->info['shop_price'] * $this->info['buy_number'], 'product_price' => '', 'product_attr_value' => '', 'uid' => UID, ); $this->cartData = array_merge($this->cartData,$this->goods); #若存在規格【添加規格信息】 if(!empty($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; # 購物車 添加的總數據 $this->cartData; } /** * 設置購物車返回提示數據 * @param [商品數量,總價] */ public function setCartReturn($number,$prices) { $this->msg['code'] = self::STATUS_ON; $this->msg['data'] = array( 'number' => $number, 'prices' => $prices, ); } /** * 購物車 新添加數據 * @param [新數據,原購物車數據] */ public function addCartData($newData,$oldData) { #組合Key $key = $newData['goods_id'].'-'.$newData['product_id']; // #判斷購物車中是否有該商品 if(isset($oldData[$key])){ //1.有 合并商品數量、價格 $oldData[$key]['buy_number'] = $oldData[$key]['buy_number'] + $newData['buy_number']; $oldData[$key]['goods_price'] = $newData['goods_price']; $oldData[$key]['goods_sum'] = $oldData[$key]['buy_number'] * $oldData[$key]['goods_price']; }else{ //2.沒有 追加新商品 $oldData[$key] = $newData; } #返回購物車數據 return $oldData; } } ?>
2. 數據庫
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;
以上是“CodeIgniter框架如何實現購物車功能”這篇文章的所有內容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內容對大家有所幫助,如果還想學習更多知識,歡迎關注億速云行業資訊頻道!
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