From d2eb5e8f9b273e7f9858a350e53ede00de90418b Mon Sep 17 00:00:00 2001
From: chenhao <852066789@qq.com>
Date: Fri, 6 Jun 2025 17:47:34 +0800
Subject: [PATCH] =?UTF-8?q?fix(sip):=20=E4=BF=AE=E5=A4=8D=E7=94=9F?=
 =?UTF-8?q?=E6=88=90=E8=AE=A2=E5=8D=95=E7=BC=96=E7=A0=81=E5=BC=82=E5=B8=B8?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98?=
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- 优化了 selectMaxOrderCode 查询，使用动态长度计算订单编码的起始位置
- 提高了代码的灵活性和鲁棒性，避免了固定长度带来的潜在问题
---
 .../src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml  | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml b/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
index 72bbfa8a..09345f02 100644
--- a/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
+++ b/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
@@ -95,12 +95,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         )
     </select>
     <select id="selectMaxOrderCode" resultType="java.lang.Integer">
-        select ifnull( max(SUBSTR( order_code FROM 16 FOR 3 )), 0 )
+        select ifnull( max(SUBSTR( order_code FROM LENGTH(#{province})+1 FOR 3 )), 0 )
         from project_order_info
         where order_code like concat(#{province}, '%')
 
-
-
     </select>
     <select id="selectAgentProvinceByProjectId" resultType="java.lang.String">
         select t2.province