From 81a3bbeaece7b0f90975131127a612ce367b4ade Mon Sep 17 00:00:00 2001
From: vine_liutk <961510893@qq.com>
Date: Mon, 13 Dec 2021 13:20:17 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E8=BF=90=E8=B4=B9=E8=AE=A1?=
 =?UTF-8?q?=E7=AE=97sql=E6=9F=A5=E8=AF=A2=E9=87=8F?=
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---
 app/Services/ShippingService.php | 47 +++++++++++++++++---------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/app/Services/ShippingService.php b/app/Services/ShippingService.php
index ce93280b..3da9396c 100644
--- a/app/Services/ShippingService.php
+++ b/app/Services/ShippingService.php
@@ -17,38 +17,41 @@ class ShippingService
     public function countShippingAmount(int $weight, int $totalAmount, int $templateId, int $zoneId)
     {
         $shipping_amount = 0;
-        //获取运费规则；
-        $rules = ShippingRule::with('zones')->where('template_id', $templateId)->get();
         $canShipping = true;//是否支持寄送
+
         //如果该模板下无运费规则，则直接包邮
-        if ($rules->count() > 0) {
+        if (ShippingRule::where('template_id', $templateId)->count() > 0) {
+            //只拿有这个地区配置的模板规则，减少sql查询市区数量
+            $rules = ShippingRule::with('zones')->where('template_id', $templateId)->whereHas('zones', function ($q) use ($zoneId) {
+                return $q->where('zones.id', $zoneId);
+            })->get();
             //按包邮/计重
             $rules = $rules->sortBy('type');//优先计算包邮
             foreach ($rules as $rule) {
                 $canShipping = false;
                 $_ruleInfo = json_decode($rule->info, true);
 
-                if (in_array($zoneId, $rule->zones->pluck('id')->toArray())) {
-                    $canShipping = true;
-                    if ($rule->type == ShippingRule::TYPE_FREE) {
-                        if ($totalAmount >= bcmul($_ruleInfo['threshold'], 100)) {//在包邮价格范围内
-                            break;//跳出foreach循环, 直接包邮
-                        }
-                    } elseif ($rule->type == ShippingRule::TYPE_WEIGHT) {
-                        $_firstWeight = (int) bcmul($_ruleInfo['first_weight'], 1000);
-                        $_firstWamount = (int) bcmul($_ruleInfo['first_w_amount'], 100);
-                        $_contiueWeight = (int) bcmul($_ruleInfo['continue_weight'], 1000);
-                        $_contiueWamount = (int) bcmul($_ruleInfo['continue_w_amount'], 100);
-                        if ($weight <= $_firstWeight) {
-                            $shipping_amount = $_firstWamount;
-                            break;
-                        } else {//计算续重价格
-                            $num = (int) bcdiv(($weight - $_firstWeight), $_contiueWeight);
-                            $shipping_amount = (int) bcadd($_firstWamount, bcmul($num+1, $_contiueWamount));
-                            break;
-                        }
+                // if (in_array($zoneId, $rule->zones->pluck('id')->toArray())) {
+                $canShipping = true;
+                if ($rule->type == ShippingRule::TYPE_FREE) {
+                    if ($totalAmount >= bcmul($_ruleInfo['threshold'], 100)) {//在包邮价格范围内
+                        break;//跳出foreach循环, 直接包邮
+                    }
+                } elseif ($rule->type == ShippingRule::TYPE_WEIGHT) {
+                    $_firstWeight = (int) bcmul($_ruleInfo['first_weight'], 1000);
+                    $_firstWamount = (int) bcmul($_ruleInfo['first_w_amount'], 100);
+                    $_contiueWeight = (int) bcmul($_ruleInfo['continue_weight'], 1000);
+                    $_contiueWamount = (int) bcmul($_ruleInfo['continue_w_amount'], 100);
+                    if ($weight <= $_firstWeight) {
+                        $shipping_amount = $_firstWamount;
+                        break;
+                    } else {//计算续重价格
+                        $num = (int) bcdiv(($weight - $_firstWeight), $_contiueWeight);
+                        $shipping_amount = (int) bcadd($_firstWamount, bcmul($num+1, $_contiueWamount));
+                        break;
                     }
                 }
+                // }
             }
         }
         if (!$canShipping) {