chore: minor fixes and formatting

repositories/order_items.py

@@ -1,26 +1,18 @@
-from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy import delete, func, select
-from typing import Optional
+from sqlalchemy.ext.asyncio import AsyncSession
 
 from db.models.orders import Order, OrderItem, OrderStatus
 
 
 class OrderItemRepository:
-    async def get_item_by_id(
-        self, session: AsyncSession, item_id: int
-    ) -> Optional[OrderItem]:
+    async def get_item_by_id(self, session: AsyncSession, item_id: int) -> OrderItem | None:
         stmt = select(OrderItem).where(OrderItem.id == item_id)
         return await session.scalar(stmt)
 
     async def get_items_by_order(
         self, session: AsyncSession, *, order_id: int, limit: int, offset: int = 0
     ) -> list[OrderItem]:
-        stmt = (
-            select(OrderItem)
-            .where(OrderItem.order_id == order_id)
-            .limit(limit)
-            .offset(offset)
-        )
+        stmt = select(OrderItem).where(OrderItem.order_id == order_id).limit(limit).offset(offset)
         result = await session.scalars(stmt)
 
         return list(result)
@@ -29,9 +21,7 @@ class OrderItemRepository:
         stmt = select(func.count(OrderItem.id)).where(OrderItem.order_id == order_id)
         return await session.scalar(stmt) or 0
 
-    async def get_items_count_by_customer(
-        self, session: AsyncSession, customer: int
-    ) -> int:
+    async def get_items_count_by_customer(self, session: AsyncSession, customer: int) -> int:
         count = await session.scalar(
             select(func.count(OrderItem.id))
             .join(Order)
@@ -44,7 +34,7 @@ class OrderItemRepository:
 
     async def get_item_by_order_and_product(
         self, session: AsyncSession, *, order_id: int, product_id: int
-    ) -> Optional[OrderItem]:
+    ) -> OrderItem | None:
         stmt = (
             select(OrderItem)
             .where(OrderItem.order_id == order_id)
@@ -68,9 +58,7 @@ class OrderItemRepository:
         product_id: int,
         quantity: int = 1,
     ) -> OrderItem:
-        order_item = OrderItem(
-            order_id=order_id, product_id=product_id, quantity=quantity
-        )
+        order_item = OrderItem(order_id=order_id, product_id=product_id, quantity=quantity)
 
         session.add(order_item)
         await session.commit()