init

src/api/inventory/purchase_order_routes.py

@@ -144,16 +144,25 @@ async def _apply_order_items(
             raise HTTPException(status_code=400, detail=f"物料不存在: {item_data.product_id}")
         if product.item_type != "material":
             raise HTTPException(status_code=400, detail=f"采购单仅允许物料: {product.name}")
-        item = PurchaseOrderItem(
-            order_id=order.id,
-            product_id=item_data.product_id,
-            quantity=item_data.quantity,
-            unit_price=item_data.unit_price,
-            amount=item_data.quantity * item_data.unit_price,
-            remark=item_data.remark
-        )
-        db_session.add(item)
-        total_amount += item.amount
+        
+        # 使用物料的成本价格作为单价，忽略前端提交的单价
+        unit_price = product.cost_price or 0
+        if unit_price <= 0:
+            raise HTTPException(status_code=400, detail=f"物料 {product.name} 未设置成本价格，请在物料管理界面设置")
+        
+        try:
+            item = PurchaseOrderItem(
+                order_id=order.id,
+                product_id=item_data.product_id,
+                quantity=int(item_data.quantity),
+                unit_price=float(unit_price),
+                amount=float(item_data.quantity) * float(unit_price),
+                remark=item_data.remark or None
+            )
+            db_session.add(item)
+            total_amount += item.amount
+        except Exception as e:
+            raise HTTPException(status_code=400, detail=f"创建订单明细失败: {str(e)}")
     return total_amount