feat: 实现客户端换货系统（client-exchange-system）
新增完整换货生命周期管理：后台发起 → 客户端填收货信息 → 后台发货 → 确认完成（含可选全量迁移） → 旧资产转新再销售 后台接口（7个）： - POST /api/admin/exchanges（发起换货） - GET /api/admin/exchanges（换货列表） - GET /api/admin/exchanges/:id（换货详情） - POST /api/admin/exchanges/:id/ship（发货） - POST /api/admin/exchanges/:id/complete（确认完成+可选迁移） - POST /api/admin/exchanges/:id/cancel（取消） - POST /api/admin/exchanges/:id/renew（旧资产转新） 客户端接口（2个）： - GET /api/c/v1/exchange/pending（查询换货通知） - POST /api/c/v1/exchange/:id/shipping-info（填写收货信息） 核心能力： - ExchangeOrder 模型与状态机（1待填写→2待发货→3已发货→4已完成，1/2可取消→5） - 全量迁移事务（11张表：钱包、套餐、标签、客户绑定等） - 旧资产转新（generation+1、状态重置、新钱包、历史隔离） - 旧 CardReplacementRecord 表改名为 legacy，is_replaced 过滤改为查新表 - 数据库迁移：000085 新建 tb_exchange_order，000086 旧表改名
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@@ -92,6 +92,7 @@ type AssetRechargeRecord struct {
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LinkedOrderType string `gorm:"column:linked_order_type;type:varchar(20);comment:关联订单类型" json:"linked_order_type,omitempty"`
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LinkedCarrierType string `gorm:"column:linked_carrier_type;type:varchar(20);comment:关联载体类型" json:"linked_carrier_type,omitempty"`
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LinkedCarrierID *uint `gorm:"column:linked_carrier_id;type:bigint;comment:关联载体ID" json:"linked_carrier_id,omitempty"`
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AutoPurchaseStatus string `gorm:"column:auto_purchase_status;type:varchar(20);default:'';comment:强充自动代购状态(pending-待处理 success-成功 failed-失败)" json:"auto_purchase_status,omitempty"`
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DeletedAt gorm.DeletedAt `gorm:"column:deleted_at;index" json:"deleted_at,omitempty"`
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}
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104
internal/model/dto/exchange_dto.go
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104
internal/model/dto/exchange_dto.go
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@@ -0,0 +1,104 @@
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package dto
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import "time"
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type CreateExchangeRequest struct {
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OldAssetType string `json:"old_asset_type" validate:"required,oneof=iot_card device" required:"true" description:"旧资产类型 (iot_card:物联网卡, device:设备)"`
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OldIdentifier string `json:"old_identifier" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"旧资产标识符(ICCID/虚拟号/IMEI/SN)"`
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ExchangeReason string `json:"exchange_reason" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"换货原因"`
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Remark *string `json:"remark" validate:"omitempty,max=500" maxLength:"500" description:"备注"`
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}
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type ExchangeListRequest struct {
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Page int `json:"page" query:"page" validate:"omitempty,min=1" minimum:"1" description:"页码"`
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PageSize int `json:"page_size" query:"page_size" validate:"omitempty,min=1,max=100" minimum:"1" maximum:"100" description:"每页数量"`
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Status *int `json:"status" query:"status" validate:"omitempty,min=1,max=5" minimum:"1" maximum:"5" description:"换货状态 (1:待填写信息, 2:待发货, 3:已发货待确认, 4:已完成, 5:已取消)"`
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Identifier string `json:"identifier" query:"identifier" validate:"omitempty,max=100" maxLength:"100" description:"资产标识符搜索(旧资产/新资产标识符模糊匹配)"`
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CreatedAtStart *time.Time `json:"created_at_start" query:"created_at_start" description:"创建时间起始"`
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CreatedAtEnd *time.Time `json:"created_at_end" query:"created_at_end" description:"创建时间结束"`
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}
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type ExchangeShipRequest struct {
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ExpressCompany string `json:"express_company" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"快递公司"`
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ExpressNo string `json:"express_no" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"快递单号"`
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NewIdentifier string `json:"new_identifier" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"新资产标识符(ICCID/虚拟号/IMEI/SN)"`
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MigrateData bool `json:"migrate_data" required:"true" description:"是否执行全量迁移 (true:执行, false:不执行)"`
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}
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type ExchangeCancelRequest struct {
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Remark *string `json:"remark" validate:"omitempty,max=500" maxLength:"500" description:"取消备注"`
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}
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type ClientShippingInfoRequest struct {
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RecipientName string `json:"recipient_name" validate:"required,min=1,max=50" required:"true" minLength:"1" maxLength:"50" description:"收件人姓名"`
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RecipientPhone string `json:"recipient_phone" validate:"required,min=1,max=20" required:"true" minLength:"1" maxLength:"20" description:"收件人电话"`
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RecipientAddress string `json:"recipient_address" validate:"required,min=1,max=500" required:"true" minLength:"1" maxLength:"500" description:"收货地址"`
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}
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type ClientExchangePendingRequest struct {
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Identifier string `json:"identifier" query:"identifier" validate:"required,min=1,max=100" required:"true" minLength:"1" maxLength:"100" description:"资产标识符(ICCID/虚拟号/IMEI/SN)"`
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}
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type ExchangeIDRequest struct {
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ID uint `path:"id" required:"true" description:"换货单ID"`
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}
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type ExchangeShipParams struct {
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ID uint `path:"id" required:"true" description:"换货单ID"`
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ExchangeShipRequest
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}
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type ExchangeCancelParams struct {
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ID uint `path:"id" required:"true" description:"换货单ID"`
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ExchangeCancelRequest
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}
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type ClientShippingInfoParams struct {
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ID uint `path:"id" required:"true" description:"换货单ID"`
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ClientShippingInfoRequest
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}
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type ExchangeOrderResponse struct {
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ID uint `json:"id" description:"换货单ID"`
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ExchangeNo string `json:"exchange_no" description:"换货单号"`
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OldAssetType string `json:"old_asset_type" description:"旧资产类型 (iot_card:物联网卡, device:设备)"`
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OldAssetID uint `json:"old_asset_id" description:"旧资产ID"`
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OldAssetIdentifier string `json:"old_asset_identifier" description:"旧资产标识符"`
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NewAssetType string `json:"new_asset_type" description:"新资产类型 (iot_card:物联网卡, device:设备)"`
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NewAssetID *uint `json:"new_asset_id,omitempty" description:"新资产ID"`
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NewAssetIdentifier string `json:"new_asset_identifier" description:"新资产标识符"`
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RecipientName string `json:"recipient_name" description:"收件人姓名"`
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RecipientPhone string `json:"recipient_phone" description:"收件人电话"`
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RecipientAddress string `json:"recipient_address" description:"收货地址"`
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ExpressCompany string `json:"express_company" description:"快递公司"`
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ExpressNo string `json:"express_no" description:"快递单号"`
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MigrateData bool `json:"migrate_data" description:"是否执行全量迁移"`
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MigrationCompleted bool `json:"migration_completed" description:"迁移是否已完成"`
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MigrationBalance int64 `json:"migration_balance" description:"迁移转移金额(分)"`
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ExchangeReason string `json:"exchange_reason" description:"换货原因"`
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Remark *string `json:"remark,omitempty" description:"备注"`
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Status int `json:"status" description:"换货状态 (1:待填写信息, 2:待发货, 3:已发货待确认, 4:已完成, 5:已取消)"`
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StatusText string `json:"status_text" description:"换货状态文本"`
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ShopID *uint `json:"shop_id,omitempty" description:"所属店铺ID"`
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CreatedAt time.Time `json:"created_at" description:"创建时间"`
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UpdatedAt time.Time `json:"updated_at" description:"更新时间"`
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DeletedAt *time.Time `json:"deleted_at,omitempty" description:"删除时间"`
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Creator uint `json:"creator" description:"创建人ID"`
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Updater uint `json:"updater" description:"更新人ID"`
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}
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type ExchangeListResponse struct {
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List []*ExchangeOrderResponse `json:"list" description:"换货单列表"`
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Total int64 `json:"total" description:"总数"`
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Page int `json:"page" description:"当前页码"`
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PageSize int `json:"page_size" description:"每页数量"`
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}
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type ClientExchangePendingResponse struct {
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ID uint `json:"id" description:"换货单ID"`
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ExchangeNo string `json:"exchange_no" description:"换货单号"`
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Status int `json:"status" description:"换货状态 (1:待填写信息, 2:待发货, 3:已发货待确认, 4:已完成, 5:已取消)"`
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StatusText string `json:"status_text" description:"换货状态文本"`
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ExchangeReason string `json:"exchange_reason" description:"换货原因"`
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CreatedAt time.Time `json:"created_at" description:"创建时间"`
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}
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65
internal/model/exchange_order.go
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65
internal/model/exchange_order.go
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@@ -0,0 +1,65 @@
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package model
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import (
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"fmt"
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"math/rand"
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"time"
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"gorm.io/gorm"
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)
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// ExchangeOrder 换货单模型
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// 承载客户端换货的完整生命周期：后台发起 → 客户端填写收货信息 → 后台发货 → 确认完成（含可选全量迁移） → 旧资产可转新
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// 状态机：1-待填写信息 → 2-待发货 → 3-已发货待确认 → 4-已完成，1/2 时可取消 → 5-已取消
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type ExchangeOrder struct {
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gorm.Model
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BaseModel `gorm:"embedded"`
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// 单号
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ExchangeNo string `gorm:"column:exchange_no;type:varchar(50);not null;uniqueIndex:idx_exchange_order_no,where:deleted_at IS NULL;comment:换货单号(EXC+日期+随机数)" json:"exchange_no"`
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// 旧资产快照
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OldAssetType string `gorm:"column:old_asset_type;type:varchar(20);not null;comment:旧资产类型(iot_card/device)" json:"old_asset_type"`
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OldAssetID uint `gorm:"column:old_asset_id;not null;index:idx_exchange_order_old_asset;comment:旧资产ID" json:"old_asset_id"`
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OldAssetIdentifier string `gorm:"column:old_asset_identifier;type:varchar(100);not null;comment:旧资产标识符(ICCID/虚拟号)" json:"old_asset_identifier"`
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// 新资产快照（发货时填写）
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NewAssetType string `gorm:"column:new_asset_type;type:varchar(20);comment:新资产类型(iot_card/device)" json:"new_asset_type"`
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NewAssetID *uint `gorm:"column:new_asset_id;comment:新资产ID" json:"new_asset_id,omitempty"`
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NewAssetIdentifier string `gorm:"column:new_asset_identifier;type:varchar(100);comment:新资产标识符(ICCID/虚拟号)" json:"new_asset_identifier"`
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// 收货信息（客户端填写）
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RecipientName string `gorm:"column:recipient_name;type:varchar(50);comment:收件人姓名" json:"recipient_name"`
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RecipientPhone string `gorm:"column:recipient_phone;type:varchar(20);comment:收件人电话" json:"recipient_phone"`
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RecipientAddress string `gorm:"column:recipient_address;type:text;comment:收货地址" json:"recipient_address"`
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// 物流信息（后台发货时填写）
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ExpressCompany string `gorm:"column:express_company;type:varchar(100);comment:快递公司" json:"express_company"`
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ExpressNo string `gorm:"column:express_no;type:varchar(100);comment:快递单号" json:"express_no"`
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// 迁移相关
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MigrateData bool `gorm:"column:migrate_data;type:boolean;default:false;comment:是否执行全量迁移" json:"migrate_data"`
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MigrationCompleted bool `gorm:"column:migration_completed;type:boolean;default:false;comment:迁移是否已完成" json:"migration_completed"`
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MigrationBalance int64 `gorm:"column:migration_balance;type:bigint;default:0;comment:迁移转移金额(分)" json:"migration_balance"`
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// 业务信息
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ExchangeReason string `gorm:"column:exchange_reason;type:varchar(100);not null;comment:换货原因" json:"exchange_reason"`
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Remark *string `gorm:"column:remark;type:text;comment:备注" json:"remark,omitempty"`
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Status int `gorm:"column:status;type:int;not null;default:1;index:idx_exchange_order_status;comment:换货状态 1-待填写信息 2-待发货 3-已发货待确认 4-已完成 5-已取消" json:"status"`
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// 多租户
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ShopID *uint `gorm:"column:shop_id;index;comment:所属店铺ID" json:"shop_id,omitempty"`
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}
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// TableName 指定表名
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func (ExchangeOrder) TableName() string {
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return "tb_exchange_order"
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}
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// GenerateExchangeNo 生成换货单号
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// 格式：EXC + 年月日时分秒 + 6位随机数，如 EXC20260319143052123456
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func GenerateExchangeNo() string {
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now := time.Now()
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randomNum := rand.Intn(1000000)
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return fmt.Sprintf("EXC%s%06d", now.Format("20060102150405"), randomNum)
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}
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