From fc830b7f62af651acedb8c11f1e2634fe2a3e497 Mon Sep 17 00:00:00 2001
From: zss <zss@example.com>
Date: 星期三, 14 一月 2026 14:20:46 +0800
Subject: [PATCH] Merge branch 'jtwy' into dev_New

---
 src/main/java/com/ruoyi/procurementrecord/utils/StockUtils.java |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/ruoyi/procurementrecord/utils/StockUtils.java b/src/main/java/com/ruoyi/procurementrecord/utils/StockUtils.java
new file mode 100644
index 0000000..ce2cbc9
--- /dev/null
+++ b/src/main/java/com/ruoyi/procurementrecord/utils/StockUtils.java
@@ -0,0 +1,24 @@
+package com.ruoyi.procurementrecord.utils;
+
+import com.ruoyi.procurementrecord.mapper.ProcurementRecordMapper;
+import com.ruoyi.procurementrecord.mapper.ProcurementRecordOutMapper;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.math.BigDecimal;
+
+@Component
+@RequiredArgsConstructor
+public class StockUtils {
+    private final ProcurementRecordOutMapper procurementRecordOutMapper;
+    private final ProcurementRecordMapper procurementRecordMapper;
+
+    // 鑾峰彇鍟嗗搧鍓╀綑搴撳瓨
+    public  BigDecimal getStockQuantity(Long productModelId) {
+        // 鍏ュ簱鏁伴噺
+        BigDecimal sumQuantity = procurementRecordMapper.getSumQuantity(productModelId);
+        // 鍑哄簱鏁伴噺
+        BigDecimal outQuantity = procurementRecordOutMapper.getSumQuantity(productModelId);
+        return outQuantity.compareTo(sumQuantity) > 0 ? BigDecimal.ZERO : sumQuantity.subtract(outQuantity);
+    }
+}

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