修正git管理关系

inventory-backend/app/services/stock_service.py

@@ -0,0 +1,39 @@
+from app.extensions import db
+from app.models.stock import StockBuy
+from sqlalchemy.exc import SQLAlchemyError
+
+
+def create_inbound_stock(data):
+    """
+    处理采购入库逻辑
+    """
+    try:
+        # 1. 计算总价
+        qty = data.get('qty_inbound')
+        price = data.get('price_unit', 0)
+        total = float(qty) * float(price)
+
+        # 2. 创建库存记录
+        # 注意：入库时，当前库存(current)和可用库存(available)通常等于入库数量
+        new_stock = StockBuy(
+            material_id=data['material_id'],
+            barcode=data.get('barcode'),
+            batch_no=data.get('batch_no'),
+            qty_inbound=qty,
+            qty_current=qty,  # 初始：当前=入库
+            qty_available=qty,  # 初始：可用=入库
+            price_unit=price,
+            price_total=total,
+            supplier_name=data.get('supplier_name'),
+            warehouse_loc=data.get('warehouse_loc'),
+            inbound_date=data.get('inbound_date')  # 如果前端没传，Model会默认用当前时间
+        )
+
+        db.session.add(new_stock)
+        db.session.commit()
+
+        return new_stock
+
+    except SQLAlchemyError as e:
+        db.session.rollback()
+        raise e