?<?php namespace?app\api\service; use?app\api\model\OrderProduct; use?app\api\model\Product; use?app\api\model\UserAddress; use?app\lib\exception\OrderException; use?app\lib\exception\UserException; use?think\Exception; class?Order { ????//?訂單的商品列表，客戶(hù)端傳遞來(lái)的下單商品參數(shù)--二維數(shù)組 ????protected?$oProducts; ????//?根據(jù)product_id從數(shù)據(jù)庫(kù)中查詢(xún)出的真實(shí)商品信息--庫(kù)存量 ????protected?$products; ????protected?$uid; ????//?下單方法,參數(shù)$uid--用戶(hù),$oProducts ????public?function?place($uid,?$oProducts) ????{ ????????//?將傳進(jìn)來(lái)的$uid和$oProducts賦值給成員變量$uid和$oProducts ????????$this->uid?=?$uid; ????????$this->oProducts?=?$oProducts; ????????//?從數(shù)據(jù)庫(kù)中獲取$products的信息,調(diào)用方法getProductsByOrder ????????$this->products?=?$this->getProductsByOrder($oProducts); ????????//?獲取getOrderStatus方法的返回結(jié)果 ????????$status?=?$this->getOrderStatus(); ????????//?查看庫(kù)存量是否通過(guò),未通過(guò)則: ????????if?(!$status['pass'])?{ ????????????//在$status數(shù)組中增加訂單編號(hào)為-1,表示訂單創(chuàng)建失敗值,作為標(biāo)記 ????????????$status['order_id']?=?-1; ????????????//返回結(jié)果到客戶(hù)端, ????????????return?$status; ????????} ????????//?庫(kù)存量通過(guò),則創(chuàng)建訂單.第一步,創(chuàng)建訂單快照 ????????$orderSnap?=?$this->snapOrder($status); ????????$order?=?$this->createOrder($orderSnap); ????????$order['pass']?=?true; ????????return?$order; ????} ????//?10-12 ????//?第二步,創(chuàng)建訂單 ????private?function?createOrder($snap) ????{ ????????try?{ ????????????//?訂單號(hào) ????????????$orderNo?=?$this->makeOrderNo(); ????????????//?實(shí)例化order模型 ????????????$order?=?new?\app\api\model\Order(); ????????????//?數(shù)據(jù)庫(kù)的order表中插入數(shù)據(jù) ????????????$order->user_id?=?$this->uid; ????????????$order->order_no?=?$orderNo; ????????????$order->total_price?=?$snap['orderPrice']; ????????????$order->total_count?=?$snap['totalCount']; ????????????$order->snap_img?=?$snap['snapImg']; ????????????$order->snap_name?=?$snap['snapNme']; ????????????$order->snap_address?=?$snap['snapAddress']; ????????????$order->snap_items?=?json_encode($snap['pStatus']); ????????????$order->save(); ????????????//?order表的id?插入?到order_product的order_id賦值 ????????????//?獲取order表的id和create_time ????????????$orderID?=?$order->id; ????????????$create_time?=?$order->create_time; ????????????//?為訂單中的每一個(gè)商品添加$orderID ????????????//?&引用符號(hào),才能夠在數(shù)組中增加字段 ????????????foreach?($this->oProducts?as?&$p)?{ ????????????????$p['order_id']?=?$orderID; ????????????} ????????????//調(diào)用模型orderproduct,將數(shù)據(jù)保存到數(shù)據(jù)庫(kù)order_product表 ????????????$orderProduct?=?new?OrderProduct(); ????????????//?保存數(shù)組需要調(diào)用saveAll方法 ????????????$orderProduct->saveAll($this->oProducts); ????????????return?[ ????????????????'order_no'?=>?$orderNo, ????????????????'order_id'?=>?$orderID, ????????????????'create_time'?=>?$create_time ????????????]; ????????}?catch?(Exception?$ex)?{ ????????????throw?$ex; ????????} ????} ????//?生成訂單號(hào) ????public?static?function?makeOrderNo() ????{ ????????$yCode?=?array('A',?'B',?'C',?'D',?'E',?'F',?'G',?'H',?'I',?'J'); ????????$orderSn?= ????????????$yCode[intval(date('Y'))?-?2019]?.?strtoupper(dechex(date('m')))?.?date( ????????????????'d')?.?substr(time(),?-5)?.?substr(microtime(),?2,?5)?.?sprintf( ????????????????'%02d',?rand(0,?99)); ????????return?$orderSn; ????} ????//?10-11 ????//?生成訂單快照 ????private?function?snapOrder($status) ????{ ????????//快照信息的關(guān)聯(lián)數(shù)組 ????????$snap?=?[ ????????????//商品總價(jià) ????????????'orderPrice'?=>?0, ????????????//所有商品的數(shù)量和 ????????????'totalCount'?=>?0, ????????????//單類(lèi)商品的詳細(xì)信息 ????????????'pStatus'?=>?[], ????????????//快照地址,快照商品名,快照商品圖 ????????????'snapAddress'?=>?null, ????????????//訂單中第一個(gè)商品的名字和圖片作為快照 ????????????'snapName'?=>?'', ????????????'snapImg'?=>?'' ????????]; ????????$snap['orderPrice']?=?$status['orderPrice']; ????????$snap['totalCount']?=?$status['totalCount']; ????????$snap['pStatus']?=?$status['pStatusArray']; ????????//將$userAddress數(shù)組序列化為json字符串,方便存入數(shù)據(jù)庫(kù)中,但不太好. ????????$snap['snapAddress']?=?json_encode($this->getUserAddress()); ????????$snap['snapName']?=?$this->products[0]['name']; ????????$snap['snapImg']?=?$this->products[0]['main_img_url']; ????????if?(count($this->products)?>?1)?{ ????????????$snap['snapName']?.=?'等'; ????????} //????????print_r($snap); ????} ????//?獲取快照地址 ????private?function?getUserAddress() ????{ ????????//獲取$userAddress對(duì)象 ????????$userAddress?=?UserAddress::where('user_id',?'=',?$this->uid)->find(); ????????if?(!$userAddress)?{ ????????????throw?new?UserException([ ????????????????'msg'?=>?'用戶(hù)收貨地址不存在,下單失敗', ????????????????'errorCode'?=>?60001 ????????????]); ????????} ????????//返回$userAddress數(shù)組 ????????return?$userAddress->toArray(); ????} ????//?10-9?下單接口業(yè)務(wù)模型二 ????//?定義方法:獲取訂單狀態(tài).對(duì)比$oProducts和$products,檢驗(yàn)庫(kù)存量 ????//?此處不需要傳遞參數(shù)$oProducts和$products,是因?yàn)楸绢?lèi)中已經(jīng)定了賦值好了. ????//?定義訂單狀態(tài)相關(guān)屬性,用于返回結(jié)果 ????//??????pass--庫(kù)存量檢測(cè)是否通過(guò),默認(rèn)值設(shè)為true ????//??????orderPrice--所有商品價(jià)格總和,默認(rèn)值設(shè)為0 ????//??????pStatusArray--數(shù)組,通過(guò)order的product_id獲取并保存訂單中所有商品的詳細(xì)信息 ????//??????????????????用于歷史訂單,默認(rèn)值設(shè)為空數(shù)組 ????//獲取訂單狀態(tài),返回值為數(shù)組,包含庫(kù)存量是否充足,所有商品總價(jià),和所有訂單商品的詳細(xì)信息. ????private?function?getOrderStatus() ????{ ????????$status?=?[ ????????????'pass'?=>?true, ????????????'orderPrice'?=>?0, ????????????'totalCount'?=>?0, ????????????'pStatusArray'?=>?[] ????????]; ????????//?使用循環(huán)對(duì)比進(jìn)行庫(kù)存量檢測(cè) ????????foreach?($this->oProducts?as?$oProduct)?{ ????????????$pStatus?=?$this->getProductStatus( ????????????????$oProduct['product_id'],?$oProduct['count'],?$this->products ????????????); ????????????if?(!$pStatus['haveStock'])?{ ????????????????$status['pass']?=?false; ????????????} ????????????$status['orderPrice']?+=?$pStatus['totalPrice']; ????????????$status['totalCount']?+=?$pStatus['count']; ????????????array_push($status['pStatusArray'],?$pStatus); ????????} ????????return?$status; ????} ????//?定義方法getProductStatus ????//?根據(jù)$oPIDs中的product_id獲取$products數(shù)組中對(duì)應(yīng)的商品庫(kù)存量 ????//?$oPIDs數(shù)組中只有product_id ????//?定義$pStatus的數(shù)據(jù)結(jié)構(gòu) ????//??????$pStatus的作用,將本次訂單信息保存至歷史訂單 ????//?$pIndex指定product_id在$products中id對(duì)應(yīng)數(shù)組的下標(biāo)序號(hào) ????//?totalPrice--訂單中某個(gè)商品的總價(jià)格 ????private?function?getProductStatus($oPIDs,?$oCount,?$products) ????{ ????????$pIndex?=?-1; ????????$pStatus?=?[ ????????????'id'?=>?null, ????????????'haveStock'?=>?false, ????????????//訂單中某個(gè)商品的數(shù)量 ????????????'count'?=>?0, ????????????'name'?=>?'', ????????????'totalPrice'?=>?0 ????????]; ????????//使用循環(huán)找出$pIndex ????????for?($i?=?0;?$i?<?count($products);?$i++)?{ ????????????if?($oPIDs?==?$products[$i]['id'])?{ ????????????????$pIndex?=?$i; ????????????} ????????} ????????if?($pIndex?==?-1)?{ ????????????//以防用戶(hù)下單的商品客戶(hù)端傳遞的productid有可能根本不存在,在服務(wù)器中已經(jīng)下架了或丟失了,即$pIndex?=?-1,需要拋出異常 ????????????throw?new?OrderException([ ????????????????'msg'?=>?'id為'?.?$oPIDs?.?'的商品不存在,訂單創(chuàng)建失敗' ????????????]); ????????}?else?{ ????????????$products?=?$products[$pIndex]; ????????????$pStatus['id']?=?$products['id']; ????????????$pStatus['count']?=?$oCount; ????????????$pStatus['name']?=?$products['name']; ????????????$pStatus['totalPrice']?=?$products['price']?*?$oCount; ????????????if?($products['stock']?-?$oCount?>=?0)?{ ????????????????$pStatus['haveStock']?=?true; ????????????} ????????} ????????return?$pStatus; ????} ????//?根據(jù)訂單信息$oProducts查找真實(shí)的商品信息$products ????private?function?getProductsByOrder($oProducts) ????{ ????????//?通過(guò)循環(huán)將product_id讀取出來(lái)并存放在$oPIDs數(shù)組中,$oPIDs是一個(gè)只有product_id的以為數(shù)組. ????????$oPIDs?=?[]; ????????foreach?($oProducts?as?$item)?{ ????????????array_push($oPIDs,?$item['product_id']); ????????} ????????//?通過(guò)新構(gòu)造的數(shù)組$oPIDs,調(diào)用Product模型的all方法到數(shù)據(jù)庫(kù)中進(jìn)行硬查詢(xún) ????????//??????并使用->visible方法獲取指定部分?jǐn)?shù)據(jù) ????????//???之前在全局配置中數(shù)組返回形式是collection數(shù)據(jù)集, ????????//???此處使用數(shù)據(jù)集的toArray方法將數(shù)據(jù)集轉(zhuǎn)化為數(shù)組形式(方便與$oProducts數(shù)組作對(duì)比) ????????//?查詢(xún)結(jié)構(gòu)$products是一個(gè)二維數(shù)組 ????????$products?=?Product::all($oPIDs) ????????????->visible(['id',?'price',?'stock',?'name',?'main_img_url']) ????????????->toArray(); ????????return?$products; ????} }