From 48e8e81666b2d0f49b931cb7b93729355758f2ae Mon Sep 17 00:00:00 2001
From: 云 <2163098428@qq.com>
Date: 星期四, 24 九月 2026 19:24:02 +0800
Subject: [PATCH] fix(aftersalesservice): 解决售后工单查询中的空指针异常

---
 src/main/java/com/ruoyi/basic/mapper/ProductModelMapper.java |   19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/ruoyi/basic/mapper/ProductModelMapper.java b/src/main/java/com/ruoyi/basic/mapper/ProductModelMapper.java
index bddcca4..0d521c9 100644
--- a/src/main/java/com/ruoyi/basic/mapper/ProductModelMapper.java
+++ b/src/main/java/com/ruoyi/basic/mapper/ProductModelMapper.java
@@ -4,8 +4,10 @@
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.ruoyi.basic.pojo.ProductModel;
-import com.ruoyi.procurementrecord.dto.ProcurementPageDto;
+import com.ruoyi.basic.vo.ProductModelVo;
+import com.ruoyi.procurementrecord.bean.dto.ProcurementPageDto;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
 
 import java.util.List;
 import java.util.Map;
@@ -19,11 +21,24 @@
  */
 public interface ProductModelMapper extends BaseMapper<ProductModel> {
 
-    IPage<ProductModel> listPageProductModel(Page<ProductModel> page, @Param("c") ProductModel productModel);
+    IPage<ProductModelVo> listPageProductModel(Page<ProductModelVo> page, @Param("c") ProductModel productModel);
 
     IPage<ProductModel> listPageProductionStock(Page<ProductModel> page, @Param("req") ProcurementPageDto req);
 
     ProductModel selectLatestRecord();
 
     List<Map<String, Object>> getProductAndModelList();
+
+    /**
+     * 鎸変骇鍝佸悕绉� + 瑙勬牸鍨嬪彿鏌ヨ浜у搧鍨嬪彿
+     *
+     * @param productName 浜у搧鍚嶇О
+     * @param model       瑙勬牸鍨嬪彿
+     * @return 浜у搧鍨嬪彿锛堝彇绗竴鏉★級
+     */
+    @Select("select pm.id, pm.product_id, pm.model, pm.unit from product_model pm " +
+            "left join product p on pm.product_id = p.id " +
+            "where p.product_name = #{productName} and pm.model = #{model} " +
+            "order by pm.id limit 1")
+    ProductModel selectByProductNameAndModel(@Param("productName") String productName, @Param("model") String model);
 }

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