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2024-09-27 01:32:49 +08:00
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金壶/ydyd_service/application/common/tools/UserExtendCart.php Normal file
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<?php
namespace app\common\tools;
use app\ydyd_service\model\UserCartModel;
use think\Db;
use think\facade\Cache;
class UserExtendCart
{
/*************************************************************/
// 华源商品数据
protected $ex_goods = [];
/*************************************************************/
// 当前用户
protected $user_id = 0;
public function __construct($user_id=null)
{
$this->user_id = session('user_id')?session('user_id'):$user_id;
//增加扩展的华源商品 不加入缓存 实时读取数据库
$extend_where[] = ['user_id',"=",$this->user_id];
$extend_where[] = ['type',"=",'extend'];
//$extend_cart_data = Db::name("shopping_cart")->where($extend_where)->column("batch_id as id,goods_number as num, unit_price as price, type, extend_data",'batch_id');
//扩展商品无price_id字段，暂用batch_id代替
$extend_cart_data = Db::name("user_cart")->where($extend_where)->column("id,batch_id,goods_number as num,unit_price as price,type,extend_data",'batch_id');
if ($extend_cart_data){
foreach ($extend_cart_data as $item){
$this->initExCart($item, true);
}
//$this->setExtendGoods($extend_cart_data);//不使用缓存
$this->setExtendGoods($this->ex_goods);//不使用缓存
$this->extend_store();
}
}
public function getExtendGoods()
{
return $this->ex_goods;
}
public function setExtendGoods($goods)
{
$this->ex_goods = $goods;
}
/**
* 初始化 加入购物车-》华源商品扩展
* @param $data
* @param bool $init_flag
* @return mixed
* @throws \Exception
*/
public function initExCart($data,$init_flag = false)
{
if ($data && $init_flag){
$pid= $data['batch_id'];
$this->ex_goods[$pid]['id'] = $data['id'];
$this->ex_goods[$pid]['num'] = $data['num'];
$this->ex_goods[$pid]['batch_id'] = $data['batch_id'];
$this->ex_goods[$pid]['price'] = $data['price'];
$this->ex_goods[$pid]['total'] = $this->ex_goods[$pid]['num'] * $this->ex_goods[$pid]['price'];
$this->ex_goods[$pid]['type'] = 'extend';
$this->ex_goods[$pid]['extend_data'] = $data['extend_data'];
}
}
/***************************************************/
/**
* 加入购物车-》华源商品扩展
* @param $data
* @param bool $init_flag
* @return mixed
* @throws \Exception
*/
public function add($data,$init_flag = false)
{
if (!is_array($data) || !isset($data['id']) || !isset($data['num']) || !isset($data['price']) || ($data['price'] <0)) {
throw new \Exception('购物车ADD方法参数设置错误');
}
//添加商品支持多商品添加
//$options = isset($data['options']) ? $data['options'] : '';
//$sid = md5($data['id']);
$sid = $data['id'];
$_where[] = ['user_id',"=",$this->user_id];
$_where[] = ["batch_id","=",$sid];
//生成维一ID用于处理相同商品有不同属性时
if (isset($this->ex_goods[$sid])) {
//如果数量为0删除商品
if ($data['num'] <= 0) {
unset($this->ex_goods[$sid]);
UserCartModel::where($_where)->delete();
} else {
//已经存在相同商品时增加商品数量
$this->ex_goods[$sid]['num'] = $this->ex_goods[$sid]['num'] + $data['num'];
$this->ex_goods[$sid]['total'] = $this->ex_goods[$sid]['num'] * $this->ex_goods[$sid]['price'];
$this->ex_goods[$sid]['type'] = 'extend';
$this->ex_goods[$sid]['extend_data'] = $data['extend_data'];
if (!$init_flag){
$update_data['goods_number'] = $this->ex_goods[$sid]['num'];
$update_data['unit_price'] = $this->ex_goods[$sid]['price'];
$update_data['type'] = 'extend';
$update_data['extend_data'] = $this->ex_goods[$sid]['extend_data'];
UserCartModel::where($_where)->update($update_data);
}
}
} else {
if ($data['num'] > 0) {
$this->ex_goods[$sid] = $data;
$this->ex_goods[$sid]['total'] = $data['num'] * $data['price'];
if (!$init_flag) {
$add_data['user_id'] = $this->user_id;
$add_data['batch_id'] = $sid;
$add_data['unit_price'] = $data['price'];
$add_data['goods_number'] = $data['num'];
$add_data['type'] = 'extend';
$add_data['extend_data'] = $data['extend_data'];
UserCartModel::create($add_data);
}
}
}
return true;
}
/******************************************************/
/****************************************************/
// 扩展商品 不加入缓存
private function extend_store(){
$cart = [
'goods_list' => $this->ex_goods,
'total_num' => $this->getTotalNums(),
'total_price' => $this->getTotalPrice(),
'price_id' => $this->getAllPriceID(),
];
return $cart;
}
/*****************************************************/
/**
* 统计购物车中商品分类数量
*/
public function getTotalNums()
{
$rows = 0;
foreach ($this->ex_goods as $v) {
//$rows += $v['num'];
$rows ++;
}
return $rows;
}
/**
* 获得商品汇总价格
*/
public function getTotalPrice()
{
$total = 0;
foreach ($this->ex_goods as $v) {
$total += $v['price'] * $v['num'];
}
return $total;
}
/**
* batch_id 充当price_id
* */
public function getAllPriceId(){
$data = [];
foreach ($this->ex_goods as $v) {
$data[]= $v['batch_id'];
}
return $data;
}
/**
* 更新购物车数量
* @param $data
* $data=[
* "sid"=>'', //商品的唯一SID
* "num"=>2, //商品数量
* ]
* @return bool
* @throws \Exception
*/
public function update($data)
{
if ( ! isset($data['sid']) || ! isset($data['num'])) {
throw new \Exception('购物车update方法参数错误，缺少sid或num值');
}
$sid = $data['sid'];
$_where[] = ['user_id',"=",$this->user_id];
$_where[] = ["batch_id","=",$sid];
if (isset($this->ex_goods[$sid])) {
if ($data['num'] == 0) {
unset($this->ex_goods[$sid]);
UserCartModel::where($_where)->delete();
} else {
$this->ex_goods[$sid]['num'] = $data['num'];
if (isset($data['price']) && is_numeric($data['price']) && $data['price'] > 0){
$this->ex_goods[$sid]['price'] = $data['price'];
}
$this->ex_goods[$sid]['total'] = $data['num'] * $this->ex_goods[$sid]['price'];
$update_data['goods_number'] = $this->ex_goods[$sid]['num'];
$update_data['unit_price'] = $this->ex_goods[$sid]['price'];
UserCartModel::where($_where)->update($update_data);
}
return true;
}
return false;
}
/**
* 获得购物车中的所有数据
* @return mixed
*/
public function getAllData()
{
return $this->extend_store();
}
/**
* 获取购物车内所有商品的ID信息
* @return array
*/
public function getAllId()
{
$id_arr = [];
foreach ($this->ex_goods as $k => $item) {
$id_arr[] = $k;
}
return $id_arr;
}
/**
* 获取购物车内所有商品的ID信息(user_cart.id)
* @return array
*/
public function getAllUcId()
{
$id_arr = [];
if (is_array($this->ex_goods)&&$this->ex_goods){
foreach ($this->ex_goods as $k => $item) {
$id_arr[] = $item['id'];
}
}
return $id_arr;
}
/**
* 删除购物车
* @param $sid 商品SID编号
* @return bool
* @throws \Exception
*/
public function del($sid)
{
if (isset($this->ex_goods[$sid])) {
unset($this->ex_goods[$sid]);
$_where[] = ['user_id',"=",$this->user_id];
$_where[] = ["batch_id","=",$sid];
ShoppingCartModel::where($_where)->delete();
return true;
}
return false;
}
/**
* 删除所有商品
* @return bool
* @throws \Exception
*/
public function flush()
{
//ShoppingCartModel::where("user_id",$this->user_id)->delete();
UserCartModel::where("user_id",$this->user_id)->delete();
$this->setExtendGoods([]);
$this->extend_store();
return true;
}
}