x

frontend/src/modules/inventory/components/CustomersTab.vue

@@ -8,6 +8,7 @@ const { state, loadCustomers } = useInventory()
 
 const showModal = ref(false)
 const editingItem = ref<any>(null)
+const saving = ref(false)
 const form = reactive({
   name: '',
   contact_person: '',
@@ -37,6 +38,12 @@ function editCustomer(item: any) {
 }
 
 async function save() {
+  if (saving.value) return
+  if (!form.name || !form.name.trim()) {
+    addNotification('请输入客户名称', 'warning')
+    return
+  }
+  saving.value = true
   try {
     const payload = {
       name: form.name,
@@ -62,6 +69,8 @@ async function save() {
     loadCustomers()
   } catch (e) {
     handleApiError(e, '保存客户')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -128,8 +137,8 @@ onMounted(() => { loadCustomers() })
         </t-form-item>
       </t-form>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="save">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="save">保存</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/InventoryTab.vue

@@ -8,6 +8,7 @@ const { state, loadInventory, ensureStockBaseData } = useInventory()
 
 const showModal = ref(false)
 const editingItem = ref<any>(null)
+const saving = ref(false)
 const form = reactive({
   product_id: null as number | null,
   warehouse_id: null as number | null,
@@ -42,6 +43,24 @@ function openEdit(item: any) {
 }
 
 async function save() {
+  if (saving.value) return
+  if (!form.product_id) {
+    addNotification('请选择物料', 'warning')
+    return
+  }
+  if (!form.warehouse_id) {
+    addNotification('请选择仓库', 'warning')
+    return
+  }
+  if (form.quantity < 0) {
+    addNotification('数量不能为负数', 'warning')
+    return
+  }
+  if (form.locked_quantity > form.quantity) {
+    addNotification('锁定数量不能大于库存数量', 'warning')
+    return
+  }
+  saving.value = true
   try {
     const payload = {
       product_id: form.product_id,
@@ -68,6 +87,8 @@ async function save() {
     loadInventory()
   } catch (e) {
     handleApiError(e, '保存物料库存')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -139,8 +160,8 @@ onMounted(() => { loadInventory() })
         </t-form-item>
       </t-form>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="save">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="save">保存</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/MaterialsTab.vue

@@ -14,10 +14,12 @@ const {
 
 const showModal = ref(false)
 const editingItem = ref<any>(null)
+const saving = ref(false)
 const form = ref<any>({})
 const showRestockModal = ref(false)
 const restockItems = ref<any[]>([])
 const restockSupplierId = ref<number | null>(null)
+const restocking = ref(false)
 
 function openCreateMaterial() {
   editingItem.value = null
@@ -42,6 +44,7 @@ async function editMaterial(product: any) {
 }
 
 async function saveProduct() {
+  if (saving.value) return
   if (!form.value.sku) {
     addNotification('请输入SKU', 'warning')
     return
@@ -50,6 +53,7 @@ async function saveProduct() {
     addNotification('请输入名称', 'warning')
     return
   }
+  saving.value = true
   try {
     if (editingItem.value) {
       await apiRequest(`/api/products/${editingItem.value.id}`, {
@@ -70,6 +74,8 @@ async function saveProduct() {
     loadMaterials()
   } catch (e) {
     handleApiError(e, '保存物料')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -111,6 +117,11 @@ const restockTotalAmount = computed(() => {
 })
 
 async function saveRestock() {
+  if (restocking.value) return
+  if (!restockSupplierId.value) {
+    addNotification('请选择供应商', 'warning')
+    return
+  }
   if (!restockItems.value || restockItems.value.length === 0) {
     addNotification('请至少添加一个补货物料', 'warning')
     return
@@ -130,9 +141,10 @@ async function saveRestock() {
       return
     }
   }
+  restocking.value = true
   try {
     const payload = {
-      supplier_id: restockSupplierId.value || state.suppliers[0]?.id || null,
+      supplier_id: restockSupplierId.value,
       expected_date: new Date().toISOString().split('T')[0],
       remark: '物料补货',
       items: restockItems.value.map((item: any) => ({
@@ -142,10 +154,6 @@ async function saveRestock() {
         remark: item.remark
       }))
     }
-    if (!payload.supplier_id) {
-      addNotification('请先添加供应商', 'warning')
-      return
-    }
     await apiRequest('/api/purchase-orders', {
       method: 'POST',
       body: JSON.stringify(payload)
@@ -153,9 +161,12 @@ async function saveRestock() {
     addNotification('采购订单创建成功', 'success')
     showRestockModal.value = false
     restockItems.value = []
+    restockSupplierId.value = null
     loadPurchaseOrders()
   } catch (e) {
     handleApiError(e, '保存补货订单')
+  } finally {
+    restocking.value = false
   }
 }
 
@@ -234,8 +245,8 @@ onMounted(() => { loadMaterials() })
         </t-form-item>
       </t-form>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="saveProduct">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="saveProduct">保存</t-button>
       </template>
     </t-dialog>
 
@@ -246,7 +257,7 @@ onMounted(() => { loadMaterials() })
       @closed="closeRestockModal"
     >
       <t-form label-width="100px" style="margin-bottom: 16px;">
-        <t-form-item label="供应商">
+        <t-form-item label="供应商" required>
           <t-select v-model="restockSupplierId" placeholder="请选择供应商" style="width:100%">
             <t-option
               v-for="supplier in state.suppliers"
@@ -304,8 +315,8 @@ onMounted(() => { loadMaterials() })
         补货总金额：{{ formatCurrency(restockTotalAmount) }}
       </div>
       <template #footer>
-        <t-button @click="showRestockModal = false">取消</t-button>
+        <t-button @click="showRestockModal = false" :disabled="restocking">取消</t-button>
-        <t-button type="primary" @click="saveRestock">创建采购订单</t-button>
+        <t-button type="primary" :loading="restocking" :disabled="restocking" @click="saveRestock">创建采购订单</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/ProductsTab.vue

@@ -13,6 +13,7 @@ const {
 
 const showModal = ref(false)
 const editingItem = ref<any>(null)
+const saving = ref(false)
 const form = ref<any>({})
 const bomItems = ref<any[]>([])
 
@@ -61,6 +62,7 @@ function removeBomItem(index: number) {
 }
 
 async function saveProduct() {
+  if (saving.value) return
   if (!form.value.sku) {
     addNotification('请输入SKU', 'warning')
     return
@@ -69,6 +71,7 @@ async function saveProduct() {
     addNotification('请输入名称', 'warning')
     return
   }
+  saving.value = true
   try {
     if (editingItem.value) {
       await apiRequest(`/api/products/${editingItem.value.id}`, {
@@ -97,6 +100,8 @@ async function saveProduct() {
     loadMaterials()
   } catch (e) {
     handleApiError(e, '保存成品')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -216,8 +221,8 @@ onMounted(() => { loadFinishedProducts() })
         </template>
       </t-form>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="saveProduct">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="saveProduct">保存</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/PurchaseOrdersTab.vue

@@ -38,12 +38,14 @@ const editingItem = ref<any>(null)
 const form = ref<any>({})
 const orderItems = ref<any[]>([])
 const purchaseWarehouseId = ref<number | null>(null)
+const saving = ref(false)
 
 const showReceiveModal = ref(false)
 const receivingOrder = ref<any>(null)
 const receiveItems = ref<any[]>([])
 const receiveWarehouseId = ref<number | null>(null)
 const receiveRemark = ref('')
+const receiving = ref(false)
 
 function openCreateOrder() {
   editingItem.value = null
@@ -99,6 +101,7 @@ async function editOrder(order: any) {
 }
 
 async function savePurchaseOrder() {
+  if (saving.value) return
   if (!form.value.supplier_id) {
     addNotification('请选择供应商', 'warning')
     return
@@ -117,6 +120,7 @@ async function savePurchaseOrder() {
       return
     }
   }
+  saving.value = true
   try {
     const payload = {
       supplier_id: form.value.supplier_id,
@@ -148,6 +152,8 @@ async function savePurchaseOrder() {
     loadPurchaseOrders()
   } catch (e) {
     handleApiError(e, '保存采购订单')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -183,6 +189,7 @@ async function openReceiveDialog(order: any) {
 }
 
 async function receivePurchaseOrder() {
+  if (receiving.value) return
   if (!receiveWarehouseId.value) {
     addNotification('请选择入库仓库', 'warning')
     return
@@ -197,6 +204,7 @@ async function receivePurchaseOrder() {
     addNotification('请输入本次入库数量', 'warning')
     return
   }
+  receiving.value = true
   try {
     await apiRequest(`/api/purchase-orders/${receivingOrder.value.id}/receive`, {
       method: 'POST',
@@ -215,6 +223,8 @@ async function receivePurchaseOrder() {
     loadMovements()
   } catch (e) {
     handleApiError(e, '采购入库')
+  } finally {
+    receiving.value = false
   }
 }
 
@@ -456,8 +466,8 @@ onMounted(() => {
         订单总金额：{{ formatCurrency(orderTotalAmount) }}
       </div>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="savePurchaseOrder">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="savePurchaseOrder">保存</t-button>
       </template>
     </t-dialog>
 
@@ -501,8 +511,8 @@ onMounted(() => {
         </t-table-column>
       </t-table>
       <template #footer>
-        <t-button @click="showReceiveModal = false">取消</t-button>
+        <t-button @click="showReceiveModal = false" :disabled="receiving">取消</t-button>
-        <t-button type="primary" @click="receivePurchaseOrder">确认入库</t-button>
+        <t-button type="primary" :loading="receiving" :disabled="receiving" @click="receivePurchaseOrder">确认入库</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/SalesOrdersTab.vue

@@ -38,10 +38,20 @@ const editingItem = ref<any>(null)
 const form = ref<any>({})
 const moldItems = ref<any[]>([])
 const productionWarehouseId = ref<number | null>(null)
+const saving = ref(false)
 
 const showConsumptionModal = ref(false)
 const consumptionItems = ref<any[]>([])
 const consumedMaterials = ref<any[]>([])
+const consuming = ref(false)
+
+// 删除守卫：已收款/已交付/已作废/有收款记录 的订单禁止删除（与后端一致）
+function isSalesOrderDeleteLocked(row: any): boolean {
+  return row.payment_status === 'paid'
+    || row.delivery_status === 'delivered'
+    || row.delivery_status === 'cancelled'
+    || (Number(row.received_amount || 0) > 0)
+}
 
 function openCreateOrder() {
   editingItem.value = null
@@ -117,6 +127,7 @@ async function editOrder(order: any) {
 }
 
 async function saveSalesOrder() {
+  if (saving.value) return
   if (!form.value.customer_id) {
     addNotification('请选择客户', 'warning')
     return
@@ -125,6 +136,33 @@ async function saveSalesOrder() {
     addNotification('请至少添加一个模具', 'warning')
     return
   }
+  for (const [i, item] of moldItems.value.entries()) {
+    const idx = i + 1
+    if (item.mold_mode === 'new') {
+      if (!item.mold_sku || !String(item.mold_sku).trim()) {
+        addNotification(`第 ${idx} 行：新模请填写模具SKU`, 'warning')
+        return
+      }
+      if (!item.mold_name || !String(item.mold_name).trim()) {
+        addNotification(`第 ${idx} 行：新模请填写模具名称`, 'warning')
+        return
+      }
+    } else {
+      if (!item.mold_id) {
+        addNotification(`第 ${idx} 行：改模请选择已有模具`, 'warning')
+        return
+      }
+    }
+    if (!item.quantity || item.quantity <= 0) {
+      addNotification(`第 ${idx} 行：数量必须大于 0`, 'warning')
+      return
+    }
+    if (!item.unit_price || item.unit_price < 0) {
+      addNotification(`第 ${idx} 行：单价不能为负`, 'warning')
+      return
+    }
+  }
+  saving.value = true
   try {
     const payload = {
       customer_id: form.value.customer_id,
@@ -164,13 +202,19 @@ async function saveSalesOrder() {
     loadMovements()
   } catch (e) {
     handleApiError(e, '保存销售订单')
+  } finally {
+    saving.value = false
   }
 }
 
-async function deleteOrder(id: number) {
+async function deleteOrder(row: any) {
-  if (!await confirmDialog('删除确认', '确定要删除这个销售订单吗？', 'warning', '删除', '取消')) return
+  if (isSalesOrderDeleteLocked(row)) {
+    addNotification('已收款/已交付/已作废或有收款记录的订单不可删除，请先作废相关收款单', 'warning')
+    return
+  }
+  if (!await confirmDialog('删除确认', '确定要删除这个销售订单吗？删除将自动回补已扣减的物料。', 'warning', '删除', '取消')) return
   try {
-    await apiRequest(`/api/sales-orders/${id}`, { method: 'DELETE' })
+    await apiRequest(`/api/sales-orders/${row.id}`, { method: 'DELETE' })
     addNotification('销售订单已删除', 'success')
     loadProductionOrders()
     loadInventory()
@@ -239,11 +283,24 @@ const consumptionTotalAmount = computed(() => {
 })
 
 async function saveConsumption() {
+  if (consuming.value) return
   if (!editingItem.value) return
   if (!consumptionItems.value || consumptionItems.value.length === 0) {
     addNotification('请至少添加一个消耗物料', 'warning')
     return
   }
+  for (const [i, item] of consumptionItems.value.entries()) {
+    const idx = i + 1
+    if (!item.material_id) {
+      addNotification(`第 ${idx} 行：请选择物料`, 'warning')
+      return
+    }
+    if (!item.quantity || item.quantity <= 0) {
+      addNotification(`第 ${idx} 行：数量必须大于 0`, 'warning')
+      return
+    }
+  }
+  consuming.value = true
   try {
     const payload = {
       items: consumptionItems.value.map((item: any) => ({
@@ -275,6 +332,8 @@ async function saveConsumption() {
     loadMovements()
   } catch (e) {
     handleApiError(e, '保存物料消耗')
+  } finally {
+    consuming.value = false
   }
 }
 
@@ -372,7 +431,7 @@ onMounted(() => {
             :disabled="row.payment_status === 'paid' || row.delivery_status === 'cancelled'"
             @click="editOrder(row)"
           >编辑</t-button>
-          <t-button type="danger" size="small" @click="deleteOrder(row.id)">删除</t-button>
+          <t-button type="danger" size="small" :disabled="isSalesOrderDeleteLocked(row)" @click="deleteOrder(row)">删除</t-button>
           <t-button
             v-if="row.payment_status !== 'paid' && row.delivery_status !== 'cancelled'"
             type="info" size="small"
@@ -500,8 +559,8 @@ onMounted(() => {
       </template>
 
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="saveSalesOrder">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="saveSalesOrder">保存</t-button>
       </template>
     </t-dialog>
 
@@ -563,8 +622,8 @@ onMounted(() => {
         消耗总金额：{{ formatCurrency(consumptionTotalAmount) }}
       </div>
       <template #footer>
-        <t-button @click="showConsumptionModal = false">取消</t-button>
+        <t-button @click="showConsumptionModal = false" :disabled="consuming">取消</t-button>
-        <t-button type="primary" @click="saveConsumption">保存消耗</t-button>
+        <t-button type="primary" :loading="consuming" :disabled="consuming" @click="saveConsumption">保存消耗</t-button>
       </template>
     </t-dialog>
   </div>

frontend/src/modules/inventory/components/SuppliersTab.vue

@@ -8,6 +8,7 @@ const { state, loadSuppliers } = useInventory()
 
 const showModal = ref(false)
 const editingItem = ref<any>(null)
+const saving = ref(false)
 const form = reactive({
   name: '',
   contact_person: '',
@@ -37,6 +38,12 @@ function editSupplier(item: any) {
 }
 
 async function save() {
+  if (saving.value) return
+  if (!form.name || !form.name.trim()) {
+    addNotification('请输入供应商名称', 'warning')
+    return
+  }
+  saving.value = true
   try {
     const payload = {
       name: form.name,
@@ -62,6 +69,8 @@ async function save() {
     loadSuppliers()
   } catch (e) {
     handleApiError(e, '保存供应商')
+  } finally {
+    saving.value = false
   }
 }
 
@@ -128,8 +137,8 @@ onMounted(() => { loadSuppliers() })
         </t-form-item>
       </t-form>
       <template #footer>
-        <t-button @click="showModal = false">取消</t-button>
+        <t-button @click="showModal = false" :disabled="saving">取消</t-button>
-        <t-button type="primary" @click="save">保存</t-button>
+        <t-button type="primary" :loading="saving" :disabled="saving" @click="save">保存</t-button>
       </template>
     </t-dialog>
   </div>

src/inventory/api/inventory_routes.py

@@ -10,6 +10,7 @@
 from fastapi import APIRouter, Depends, Query, HTTPException
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy import select, update, func
+from sqlalchemy.exc import IntegrityError
 from typing import Optional, List
 
 from shared.database.database import get_db_session
@@ -114,7 +115,12 @@ async def create_inventory(
         location=payload.location
     )
     db_session.add(inventory)
-    await db_session.commit()
+    try:
+        await db_session.commit()
+    except IntegrityError:
+        # 并发创建命中 (product_id, warehouse_id) 唯一约束
+        await db_session.rollback()
+        raise HTTPException(status_code=400, detail="该仓库已存在该物料库存记录")
     await db_session.refresh(inventory)
 
     return InventoryResponse(

src/inventory/api/purchase_order_routes.py

@@ -344,6 +344,10 @@ async def update_purchase_order_status(
     valid_statuses = ["pending", "partial_received", "received", "paid", "cancelled"]
     if new_status not in valid_statuses:
         raise HTTPException(status_code=400, detail=f"无效的状态值，有效值为: {valid_statuses}")
+
+    # 收货状态(partial_received/received)只能由收货端点驱动，禁止手动设置，避免与实际入库脱钩
+    if new_status in ("partial_received", "received"):
+        raise HTTPException(status_code=400, detail="收货状态只能通过收货入库操作自动变更，不能手动设置")
     
     # 状态转换逻辑
     if order.status == "paid":
@@ -380,6 +384,8 @@ async def receive_purchase_order(
     current_user: User = Depends(get_current_active_user)
 ):
     order, supplier = await _get_order_with_supplier(db_session, order_id)
+    if order.status in ("cancelled", "paid"):
+        raise HTTPException(status_code=400, detail=f"当前采购单状态为 {order.status}，不允许收货")
     warehouse = await _resolve_receive_warehouse(db_session, payload.warehouse_id)
 
     item_result = await db_session.execute(

src/inventory/api/sales_order_routes.py

@@ -446,7 +446,7 @@ async def create_sales_order(
         customer_id=order_data.customer_id,
         order_date=now,
         delivery_date=order_data.delivery_date,
-        manufacturing_date=now,
+        manufacturing_date=now.date(),
         created_at=now,
         remark=order_data.remark,
         operator_id=current_user.id,
@@ -563,6 +563,10 @@ async def delete_sales_order(
     order, customer = await _get_sales_order_with_customer(db_session, order_id)
     if order.status == "delivered":
         raise HTTPException(status_code=400, detail="已交付的销售订单禁止删除")
+    if order.status == "paid":
+        raise HTTPException(status_code=400, detail="已收款的销售订单禁止删除，请先作废相关收款单")
+    if (order.received_amount or 0) > 0:
+        raise HTTPException(status_code=400, detail="该销售订单已存在收款记录(received_amount>0)，禁止删除，请先作废相关收款单")
     await _rollback_issued_materials(db_session, order, current_user)
     await db_session.delete(order)
     await db_session.commit()
@@ -586,9 +590,14 @@ async def consume_materials(
     db_session: AsyncSession = Depends(get_db_session),
     current_user: User = Depends(get_current_active_user)
 ):
-    """记录销售订单的物料消耗"""
+    """记录销售订单的物料消耗（在已发料基础上记录额外消耗，如报废/超耗）"""
     order, customer = await _get_sales_order_with_customer(db_session, order_id)
-    
+
+    if order.status in ("delivered", "paid", "cancelled"):
+        raise HTTPException(status_code=400, detail="当前订单状态不允许记录物料消耗")
+    if order.production_status == "completed":
+        raise HTTPException(status_code=400, detail="该销售单已完成生产，不允许记录物料消耗")
+
     default_warehouse = await _get_default_warehouse(db_session)
     
     # 计算总物料成本
@@ -602,45 +611,47 @@ async def consume_materials(
             raise HTTPException(status_code=404, detail=f"物料 ID {item.material_id} 不存在")
         if material.item_type != "material":
             raise HTTPException(status_code=400, detail=f"只能消耗物料类型的产品: {material.name}")
-        
+
-        # 计算成本
+        # 统一转 Decimal，避免 Decimal * float 在 Postgres(Numeric) 上抛 TypeError
-        cost = Decimal(str(material.cost_price or 0)) * item.quantity
+        consume_qty = Decimal(str(item.quantity))
+        unit_cost = Decimal(str(material.cost_price or 0))
+        cost = unit_cost * consume_qty
         total_cost += cost
-        
+
         # 更新物料库存（原子操作防并发）
         upd_result = await db_session.execute(
             update(Inventory)
             .where(Inventory.product_id == material.id)
             .where(Inventory.warehouse_id == default_warehouse.id)
-            .where(Inventory.quantity >= item.quantity)
+            .where(Inventory.quantity >= consume_qty)
-            .values(quantity=Inventory.quantity - item.quantity)
+            .values(quantity=Inventory.quantity - consume_qty)
             .returning(Inventory.quantity)
         )
         after_qty = upd_result.scalar_one_or_none()
         if after_qty is None:
             raise HTTPException(status_code=400, detail=f"物料 {material.name} 库存不足")
-        after_qty = int(after_qty)
+        after_qty = Decimal(str(after_qty))
-        before_qty = after_qty + int(item.quantity)
+        before_qty = after_qty + consume_qty
 
         # 记录物料消耗
         movement = StockMovement(
             product_id=material.id,
             warehouse_id=default_warehouse.id,
-            quantity=item.quantity,
+            quantity=consume_qty,
             before_quantity=before_qty,
             after_quantity=after_qty,
             movement_type="consumption",
             reference_type="sales_order",
             reference_id=order.id,
-            unit_price=material.cost_price,
+            unit_price=unit_cost,
             total_amount=cost,
             operator_id=current_user.id,
             remark=item.remark
         )
         db_session.add(movement)
     
-    # 更新订单的实际物料成本
+    # 累加实际物料成本（创建时已记录计划发料成本，此处为额外消耗，不应覆盖）
-    order.actual_material_cost = total_cost
+    order.actual_material_cost = Decimal(str(order.actual_material_cost or 0)) + total_cost
     
     await db_session.commit()
     await db_session.refresh(order)

src/shared/models/database.py

@@ -660,7 +660,10 @@ class Warehouse(Base):
 class Inventory(Base):
     """库存表"""
     __tablename__ = "inventory"
-    
+    __table_args__ = (
+        UniqueConstraint("product_id", "warehouse_id", name="uq_inventory_product_warehouse"),
+    )
+
     id = Column(Integer, primary_key=True, index=True)
     product_id = Column(Integer, ForeignKey("products.id"), nullable=False, index=True)
     warehouse_id = Column(Integer, ForeignKey("warehouses.id"), nullable=False, index=True)