基于CI(CodeIgniter)框架实现购物车功能的方法
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2023-11-03 22:22:46
本文实例讲述了基于ci(codeigniter)框架实现购物车功能的方法。分享给大家供大家参考,具体如下:
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!...
本文实例讲述了基于ci(codeigniter)框架实现购物车功能的方法。分享给大家供大家参考,具体如下:
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!!!
话不多说,往下看:
1. 源代码
<?php defined('basepath') or exit('no direct script access allowed'); class cart extends home_controller { private $info = array(); #前台提交数据 private $specdata = array(); #规格信息 private $proddata = array(); #货品组合信息 private $cartdata = array(); #购物车入库数据 /** * 构造函数 */ public function __construct() { parent::__construct(); $this->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)); # 一、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['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['buy_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'], '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( 'number' => $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]['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.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!!!
更多关于codeigniter相关内容感兴趣的读者可查看本站专题:《codeigniter入门教程》、《ci(codeigniter)框架进阶教程》、《php优秀开发框架总结》、《thinkphp入门教程》、《thinkphp常用方法总结》、《zend framework框架入门教程》、《php面向对象程序设计入门教程》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家基于codeigniter框架的php程序设计有所帮助。
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