xxx

src/inventory/api/__init__.py

@@ -26,6 +26,7 @@ from .sales_order_routes import router as sales_order_router
 from .dashboard_routes import router as dashboard_router
 from .finance_routes import router as finance_router
 from .material_routes import router as material_router
+from .purchase_demand_routes import router as purchase_demand_router
 
 inventory_router = APIRouter(prefix="/api", tags=["进销存"])
 
@@ -38,6 +39,7 @@ inventory_router.include_router(stock_movement_router)
 inventory_router.include_router(purchase_order_router)
 inventory_router.include_router(sales_order_router)
 inventory_router.include_router(material_router)
+inventory_router.include_router(purchase_demand_router)
 inventory_router.include_router(dashboard_router)
 inventory_router.include_router(finance_router)
 

src/inventory/api/customer_routes.py

@@ -51,7 +51,7 @@ async def create_customer(
     
     customer = Customer(**data)
     db_session.add(customer)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(customer)
     return CustomerResponse.from_orm(customer)
 
@@ -71,7 +71,7 @@ async def update_customer(
     for key, value in customer_data.dict().items():
         setattr(customer, key, value)
     
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(customer)
     return CustomerResponse.from_orm(customer)
 
@@ -88,5 +88,5 @@ async def delete_customer(
         raise HTTPException(status_code=404, detail="客户不存在")
     
     customer.is_active = False
-    await db_session.commit()
+    await db_session.flush()
     return {"message": "客户已删除"}

src/inventory/api/material_routes.py

@@ -63,12 +63,12 @@ async def add_material_price_history(
         remark=price_data.remark
     )
     db_session.add(price_history)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(price_history)
     
     # 更新产品的成本价格为最新价格
     product.cost_price = price_data.price
-    await db_session.commit()
+    await db_session.flush()
     
     return MaterialPriceHistoryResponse(
         id=price_history.id,
@@ -212,7 +212,7 @@ async def add_material_supplier(
         min_order_quantity=supplier_data.min_order_quantity
     )
     db_session.add(material_supplier)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(material_supplier)
     
     return MaterialSupplierResponse(
@@ -281,7 +281,7 @@ async def remove_material_supplier(
         raise HTTPException(status_code=404, detail="物料供应商关联不存在")
     
     await db_session.delete(material_supplier)
-    await db_session.commit()
+    await db_session.flush()
     
     return {"message": "物料供应商关联已删除"}
 

src/inventory/api/product_routes.py

@@ -114,7 +114,7 @@ async def create_product(
         product_dict["max_stock"] = 0
     product = Product(**product_dict)
     db_session.add(product)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(product)
     return _build_product_response(product, 0)
 
@@ -178,7 +178,7 @@ async def create_product_from_task(
     db_session.add(product)
     await db_session.flush()
     stp_file.product_id = product.id
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(product)
     return _build_product_response(product, 0)
 
@@ -205,7 +205,7 @@ async def update_product(
     for key, value in product_dict.items():
         setattr(product, key, value)
     
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(product)
     material_cost_map = await _calculate_material_cost_map(db_session, [product.id])
     return _build_product_response(product, material_cost_map.get(product.id, 0))
@@ -223,7 +223,7 @@ async def delete_product(
         raise HTTPException(status_code=404, detail="产品不存在")
     
     product.is_active = False
-    await db_session.commit()
+    await db_session.flush()
     return {"message": "产品已删除"}
 
 
@@ -321,5 +321,5 @@ async def replace_product_bom(
             )
         )
 
-    await db_session.commit()
+    await db_session.flush()
     return await get_product_bom(product_id, db_session, current_user)

src/inventory/api/purchase_demand_routes.py

@@ -0,0 +1,28 @@
+"""采购需求推导路由层 - 薄路由
+
+业务逻辑下沉至 inventory.services.purchase_demand_service，路由只做参数校验与响应组装。
+路由前缀: /api/purchase-demands
+"""
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from shared.database.database import get_db_session
+from shared.services.auth_service import get_current_active_user
+from shared.models.database import User
+from ..schemas import (
+    PurchaseDemandCalculateRequest,
+    PurchaseDemandResponse,
+)
+from ..services.purchase_demand_service import purchase_demand_service
+
+router = APIRouter(prefix="/purchase-demands", tags=["采购需求推导"])
+
+
+@router.post("/calculate", response_model=PurchaseDemandResponse)
+async def calculate_purchase_demands(
+    payload: PurchaseDemandCalculateRequest,
+    db_session: AsyncSession = Depends(get_db_session),
+    current_user: User = Depends(get_current_active_user),
+):
+    """根据销售订单 ID 列表，自动推导采购需求（BOM 展开 → 库存对比 → 供应商推荐）"""
+    return await purchase_demand_service.calculate_demands(db_session, payload.sales_order_ids)

src/inventory/api/supplier_routes.py

@@ -51,7 +51,7 @@ async def create_supplier(
     
     supplier = Supplier(**data)
     db_session.add(supplier)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(supplier)
     return SupplierResponse.from_orm(supplier)
 
@@ -71,7 +71,7 @@ async def update_supplier(
     for key, value in supplier_data.dict().items():
         setattr(supplier, key, value)
     
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(supplier)
     return SupplierResponse.from_orm(supplier)
 
@@ -88,5 +88,5 @@ async def delete_supplier(
         raise HTTPException(status_code=404, detail="供应商不存在")
     
     supplier.is_active = False
-    await db_session.commit()
+    await db_session.flush()
     return {"message": "供应商已删除"}

src/inventory/api/warehouse_routes.py

@@ -44,6 +44,6 @@ async def create_warehouse(
     
     warehouse = Warehouse(**data)
     db_session.add(warehouse)
-    await db_session.commit()
+    await db_session.flush()
     await db_session.refresh(warehouse)
     return WarehouseResponse.from_orm(warehouse)