init

src/api/inventory/purchase_order_routes.py

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+"""
+采购订单路由模块
+
+提供采购订单的管理功能，包括：
+- 采购订单列表查询（支持分页、状态筛选）
+- 创建采购订单（自动生成订单号、计算总金额）
+- 采购订单明细管理
+
+路由前缀: /api/purchase-orders
+"""
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from typing import Optional, List
+
+from database.database import get_db_session
+from services.auth_service import get_current_active_user
+from models.database import User, Supplier, Product, PurchaseOrder, PurchaseOrderItem
+from .schemas import PurchaseOrderCreate, PurchaseOrderResponse
+from .utils import generate_order_no
+
+router = APIRouter(prefix="/purchase-orders", tags=["采购订单"])
+
+
+@router.get("", response_model=List[PurchaseOrderResponse])
+async def list_purchase_orders(
+    status: Optional[str] = None,
+    skip: int = Query(0, ge=0),
+    limit: int = Query(20, ge=1, le=100),
+    db_session: AsyncSession = Depends(get_db_session),
+    current_user: User = Depends(get_current_active_user)
+):
+    query = (
+        select(PurchaseOrder, Supplier)
+        .join(Supplier, PurchaseOrder.supplier_id == Supplier.id)
+        .order_by(PurchaseOrder.created_at.desc())
+    )
+    
+    if status:
+        query = query.where(PurchaseOrder.status == status)
+    
+    query = query.offset(skip).limit(limit)
+    result = await db_session.execute(query)
+    
+    orders = []
+    for order, supplier in result.all():
+        orders.append(PurchaseOrderResponse(
+            id=order.id,
+            order_no=order.order_no,
+            supplier_name=supplier.name,
+            order_date=order.order_date,
+            expected_date=order.expected_date,
+            status=order.status,
+            total_amount=order.total_amount,
+            paid_amount=order.paid_amount,
+            remark=order.remark,
+            created_at=order.created_at
+        ))
+    
+    return orders
+
+
+@router.post("", response_model=PurchaseOrderResponse, status_code=201)
+async def create_purchase_order(
+    order_data: PurchaseOrderCreate,
+    db_session: AsyncSession = Depends(get_db_session),
+    current_user: User = Depends(get_current_active_user)
+):
+    order = PurchaseOrder(
+        order_no=generate_order_no("PO"),
+        supplier_id=order_data.supplier_id,
+        expected_date=order_data.expected_date,
+        remark=order_data.remark,
+        operator_id=current_user.id,
+        status="draft"
+    )
+    db_session.add(order)
+    await db_session.flush()
+    
+    total_amount = 0
+    for item_data in order_data.items:
+        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
+    
+    order.total_amount = total_amount
+    await db_session.commit()
+    await db_session.refresh(order)
+    
+    supplier = await db_session.execute(select(Supplier).where(Supplier.id == order.supplier_id))
+    supplier = supplier.scalar_one()
+    
+    return PurchaseOrderResponse(
+        id=order.id,
+        order_no=order.order_no,
+        supplier_name=supplier.name,
+        order_date=order.order_date,
+        expected_date=order.expected_date,
+        status=order.status,
+        total_amount=order.total_amount,
+        paid_amount=order.paid_amount,
+        remark=order.remark,
+        created_at=order.created_at
+    )