集中订单状态常量

backend/internal/modules/order/admin_actions.go

@@ -26,16 +26,16 @@ func (r *Repository) AdminClose(adminID uint64, orderID uint64, req AdminActionR
 		beforeListingStatus := listing.Status
 		beforeAccountStatus := account.Status
 		now := time.Now()
-		order.Status = "closed"
+		order.Status = orderStatusClosed
-		order.HandoffStatus = "admin_closed"
+		order.HandoffStatus = handoffStatusAdminClosed
-		order.SettlementStatus = "closed"
+		order.SettlementStatus = settlementStatusClosed
 		order.SettledAt = &now
-		listing.Status = "offline"
+		listing.Status = listingStatusOffline
 		listing.InTransaction = false
-		account.Status = "offline"
+		account.Status = accountStatusOffline
-		if beforeOrderStatus != "pending_payment" {
+		if beforeOrderStatus != orderStatusPendingPayment {
 			totalCent := order.RentAmountCent + order.DepositAmountCent
-			action, err := r.prepareRefund(order, totalCent, "admin_close_refund", "客服关闭订单原路退款")
+			action, err := r.prepareRefund(order, totalCent, refundBizAdminClose, "客服关闭订单原路退款")
 			if err != nil {
 				return err
 			}
@@ -108,11 +108,11 @@ func (r *Repository) AdminMarkAbnormal(adminID uint64, orderID uint64, req Admin
 		beforeHandoffStatus := order.HandoffStatus
 		beforeListingStatus := listing.Status
 		beforeAccountStatus := account.Status
-		order.Status = "abnormal"
+		order.Status = orderStatusAbnormal
-		order.HandoffStatus = "admin_abnormal"
+		order.HandoffStatus = handoffStatusAdminAbnormal
-		listing.Status = "abnormal"
+		listing.Status = listingStatusAbnormal
 		listing.InTransaction = false
-		account.Status = "abnormal"
+		account.Status = accountStatusAbnormal
 		if err := notification.Append(tx,
 			notification.Entry{
 				UserID:  order.RenterID,
@@ -166,7 +166,7 @@ func (r *Repository) AdminRefund(orderID uint64) (*RefundStatusDTO, error) {
 	if err := r.db.First(&order, orderID).Error; err != nil {
 		return nil, err
 	}
-	if order.RefundStatus == "refunded" {
+	if order.RefundStatus == refundStatusRefunded {
 		return r.buildRefundStatusDTO(&order), nil
 	}
 	if r.refundFunc == nil {
@@ -176,7 +176,7 @@ func (r *Repository) AdminRefund(orderID uint64) (*RefundStatusDTO, error) {
 	if totalCent <= 0 {
 		return nil, ErrInvalidCheckoutAmount
 	}
-	status, err := r.refundFunc(orderID, totalCent, "admin_refund", "后台人工退款")
+	status, err := r.refundFunc(orderID, totalCent, refundBizAdmin, "后台人工退款")
 	if err != nil {
 		return nil, err
 	}
@@ -228,5 +228,5 @@ func (r *Repository) findOrderAssetsForAdminUpdate(tx *gorm.DB, orderID uint64)
 }
 
 func isTerminalStatus(status string) bool {
-	return status == "completed" || status == "cancelled" || status == "closed"
+	return status == orderStatusCompleted || status == orderStatusCancelled || status == orderStatusClosed
 }

backend/internal/modules/order/checkout.go

@@ -21,7 +21,7 @@ func (r *Repository) SubmitCheckout(userID uint64, orderID uint64, req SubmitChe
 		if order.RenterID != userID {
 			return ErrPermissionDenied
 		}
-		if (order.Status != "renting" && order.Status != "overdue") || (order.HandoffStatus != "received" && order.HandoffStatus != "return_overdue") {
+		if (order.Status != orderStatusRenting && order.Status != orderStatusOverdue) || (order.HandoffStatus != handoffStatusReceived && order.HandoffStatus != handoffStatusReturnOverdue) {
 			return ErrCheckoutCannotSubmit
 		}
 		hasOpen, err := hasOpenCheckout(tx, order.ID)
@@ -41,16 +41,16 @@ func (r *Repository) SubmitCheckout(userID uint64, orderID uint64, req SubmitChe
 		if err := tx.Create(&record).Error; err != nil {
 			return err
 		}
-		checkout, err := buildCheckout(order, order.RenterID, "submitted", req.Content, req.EvidenceURLS, req.ConsumableAmountCent, req.CoinConsumedM, req.OtherAmountCent, 0, false)
+		checkout, err := buildCheckout(order, order.RenterID, checkoutStatusSubmitted, req.Content, req.EvidenceURLS, req.ConsumableAmountCent, req.CoinConsumedM, req.OtherAmountCent, 0, false)
 		if err != nil {
 			return err
 		}
 		if err := tx.Create(&checkout).Error; err != nil {
 			return err
 		}
-		order.Status = "pending_checkout_confirm"
+		order.Status = orderStatusPendingCheckoutConfirm
-		order.HandoffStatus = "pending_owner_checkout"
+		order.HandoffStatus = handoffStatusPendingOwnerCheckout
-		order.SettlementStatus = "pending"
+		order.SettlementStatus = settlementStatusPending
 		orderID := order.ID
 		if err := notification.Append(tx, notification.Entry{
 			UserID:  order.OwnerID,
@@ -88,12 +88,12 @@ func (r *Repository) ConfirmCheckout(userID uint64, orderID uint64) error {
 		if order.OwnerID != userID {
 			return ErrPermissionDenied
 		}
-		if order.Status != "pending_checkout_confirm" || order.HandoffStatus != "pending_owner_checkout" {
+		if order.Status != orderStatusPendingCheckoutConfirm || order.HandoffStatus != handoffStatusPendingOwnerCheckout {
 			return ErrCheckoutCannotConfirm
 		}
 		var checkout model.OrderCheckout
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).
-			Where("order_id = ? AND status = ?", order.ID, "submitted").
+			Where("order_id = ? AND status = ?", order.ID, checkoutStatusSubmitted).
 			Order("id DESC").
 			First(&checkout).Error; err != nil {
 			return err
@@ -104,7 +104,7 @@ func (r *Repository) ConfirmCheckout(userID uint64, orderID uint64) error {
 			Update("confirmed_by_owner_at", now).Error; err != nil {
 			return err
 		}
-		checkout.Status = "accepted"
+		checkout.Status = checkoutStatusAccepted
 		checkout.OwnerAdjustedAt = &now
 		action, err := r.finalizeCheckout(tx, &order, &checkout, "号主已确认结账，订单完成。")
 		refund = action
@@ -127,22 +127,22 @@ func (r *Repository) CounterCheckout(userID uint64, orderID uint64, req CounterC
 		if order.OwnerID != userID {
 			return ErrPermissionDenied
 		}
-		if order.Status != "pending_checkout_confirm" || order.HandoffStatus != "pending_owner_checkout" {
+		if order.Status != orderStatusPendingCheckoutConfirm || order.HandoffStatus != handoffStatusPendingOwnerCheckout {
 			return ErrCheckoutCannotCounter
 		}
 		var checkout model.OrderCheckout
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).
-			Where("order_id = ? AND status = ?", order.ID, "submitted").
+			Where("order_id = ? AND status = ?", order.ID, checkoutStatusSubmitted).
 			Order("id DESC").
 			First(&checkout).Error; err != nil {
 			return err
 		}
-		next, err := buildCheckout(order, checkout.InitiatedBy, "countered", checkout.Content, req.EvidenceURLS, req.ConsumableAmountCent, req.CoinConsumedM, req.OtherAmountCent, req.DepositDeductAmountCent, true)
+		next, err := buildCheckout(order, checkout.InitiatedBy, checkoutStatusCountered, checkout.Content, req.EvidenceURLS, req.ConsumableAmountCent, req.CoinConsumedM, req.OtherAmountCent, req.DepositDeductAmountCent, true)
 		if err != nil {
 			return err
 		}
 		now := time.Now()
-		checkout.Status = "countered"
+		checkout.Status = checkoutStatusCountered
 		checkout.RentAmountCent = next.RentAmountCent
 		checkout.OwnerRentAmountCent = next.OwnerRentAmountCent
 		checkout.PlatformFeeCent = next.PlatformFeeCent
@@ -156,9 +156,9 @@ func (r *Repository) CounterCheckout(userID uint64, orderID uint64, req CounterC
 		checkout.OwnerAdjustmentReason = req.Reason
 		checkout.OwnerAdjustedAt = &now
 		checkout.EvidenceURLS = next.EvidenceURLS
-		order.Status = "pending_checkout_accept"
+		order.Status = orderStatusPendingCheckoutAccept
-		order.HandoffStatus = "pending_renter_checkout"
+		order.HandoffStatus = handoffStatusPendingRenterCheckout
-		order.SettlementStatus = "pending"
+		order.SettlementStatus = settlementStatusPending
 		orderID := order.ID
 		if err := notification.Append(tx, notification.Entry{
 			UserID:  order.RenterID,
@@ -205,18 +205,18 @@ func (r *Repository) AcceptCheckout(userID uint64, orderID uint64) error {
 		if order.RenterID != userID {
 			return ErrPermissionDenied
 		}
-		if order.Status != "pending_checkout_accept" || order.HandoffStatus != "pending_renter_checkout" {
+		if order.Status != orderStatusPendingCheckoutAccept || order.HandoffStatus != handoffStatusPendingRenterCheckout {
 			return ErrCheckoutCannotConfirm
 		}
 		var checkout model.OrderCheckout
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).
-			Where("order_id = ? AND status = ?", order.ID, "countered").
+			Where("order_id = ? AND status = ?", order.ID, checkoutStatusCountered).
 			Order("id DESC").
 			First(&checkout).Error; err != nil {
 			return err
 		}
 		now := time.Now()
-		checkout.Status = "accepted"
+		checkout.Status = checkoutStatusAccepted
 		checkout.RenterConfirmedAt = &now
 		action, err := r.finalizeCheckout(tx, &order, &checkout, "租客已确认修正结账，订单完成。")
 		refund = action
@@ -239,9 +239,9 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 		return nil, err
 	}
 	now := time.Now()
-	order.Status = "completed"
+	order.Status = orderStatusCompleted
-	order.HandoffStatus = "returned"
+	order.HandoffStatus = handoffStatusReturned
-	order.SettlementStatus = "settled"
+	order.SettlementStatus = settlementStatusSettled
 	order.SettledAt = &now
 	order.OwnerSettledAt = &now
 	archiveListingAfterCheckout(&listing, &account)
@@ -257,7 +257,7 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 			Direction:   "in",
 			AmountCent:  settlement.OwnerRentIncomeCent,
 			BalanceType: "available",
-			BizType:     "owner_income",
+			BizType:     walletBizOwnerIncome,
 			BizNo:       order.OrderNo,
 			Remark:      "订单结账租金收入",
 		})
@@ -269,7 +269,7 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 			Direction:   "in",
 			AmountCent:  settlement.DepositCompensationCent,
 			BalanceType: "available",
-			BizType:     "deposit_compensation",
+			BizType:     walletBizDepositCompensation,
 			BizNo:       order.OrderNo,
 			Remark:      "订单结账押金赔付",
 		})
@@ -283,7 +283,7 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 	var refund *refundAction
 	renterRefundTotalCent := settlement.RentRefundCent + settlement.DepositRefundCent
 	if renterRefundTotalCent > 0 {
-		action, err := r.prepareRefund(order, renterRefundTotalCent, "checkout_refund", "结账退款原路退还")
+		action, err := r.prepareRefund(order, renterRefundTotalCent, refundBizCheckout, "结账退款原路退还")
 		if err != nil {
 			return nil, err
 		}
@@ -332,16 +332,16 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 
 // 完成后的账号先下架，避免已完成订单对应的账号重新出现在公开首页。
 func archiveListingAfterCheckout(listing *model.RentalListing, account *model.GameAccount) {
-	listing.Status = "offline"
+	listing.Status = listingStatusOffline
 	listing.InTransaction = false
 	listing.PublishedAt = nil
-	account.Status = "offline"
+	account.Status = accountStatusOffline
 }
 
 func hasOpenCheckout(tx *gorm.DB, orderID uint64) (bool, error) {
 	var count int64
 	err := tx.Model(&model.OrderCheckout{}).
-		Where("order_id = ? AND status IN ?", orderID, []string{"submitted", "countered", "accepted", "disputed"}).
+		Where("order_id = ? AND status IN ?", orderID, []string{checkoutStatusSubmitted, checkoutStatusCountered, checkoutStatusAccepted, checkoutStatusDisputed}).
 		Count(&count).Error
 	return count > 0, err
 }

backend/internal/modules/order/constants.go

@@ -0,0 +1,60 @@
+package order
+
+const (
+	orderStatusPendingPayment         = "pending_payment"
+	orderStatusPendingHandoff         = "pending_handoff"
+	orderStatusRenting                = "renting"
+	orderStatusOverdue                = "overdue"
+	orderStatusPendingCheckoutConfirm = "pending_checkout_confirm"
+	orderStatusPendingCheckoutAccept  = "pending_checkout_accept"
+	orderStatusCheckoutDisputing      = "checkout_disputing"
+	orderStatusCompleted              = "completed"
+	orderStatusCancelled              = "cancelled"
+	orderStatusClosed                 = "closed"
+	orderStatusAbnormal               = "abnormal"
+
+	handoffStatusNone                  = "none"
+	handoffStatusPendingOwner          = "pending_owner"
+	handoffStatusPendingRenterConfirm  = "pending_renter_confirm"
+	handoffStatusReceived              = "received"
+	handoffStatusReturnOverdue         = "return_overdue"
+	handoffStatusPendingOwnerCheckout  = "pending_owner_checkout"
+	handoffStatusPendingRenterCheckout = "pending_renter_checkout"
+	handoffStatusReturned              = "returned"
+	handoffStatusCancelled             = "cancelled"
+	handoffStatusAdminClosed           = "admin_closed"
+	handoffStatusAdminAbnormal         = "admin_abnormal"
+
+	settlementStatusUnsettled = "unsettled"
+	settlementStatusPending   = "pending"
+	settlementStatusSettled   = "settled"
+	settlementStatusClosed    = "closed"
+
+	checkoutStatusSubmitted = "submitted"
+	checkoutStatusCountered = "countered"
+	checkoutStatusAccepted  = "accepted"
+	checkoutStatusDisputed  = "disputed"
+
+	refundStatusPending  = "pending"
+	refundStatusRefunded = "refunded"
+
+	listingReviewStatusApproved = "approved"
+
+	listingStatusPublished = "published"
+	listingStatusRented    = "rented"
+	listingStatusOffline   = "offline"
+	listingStatusAbnormal  = "abnormal"
+
+	accountStatusPublished = "published"
+	accountStatusRented    = "rented"
+	accountStatusOffline   = "offline"
+	accountStatusAbnormal  = "abnormal"
+
+	walletBizOwnerIncome         = "owner_income"
+	walletBizDepositCompensation = "deposit_compensation"
+
+	refundBizCancel     = "cancel_refund"
+	refundBizAdminClose = "admin_close_refund"
+	refundBizAdmin      = "admin_refund"
+	refundBizCheckout   = "checkout_refund"
+)

backend/internal/modules/order/handoff.go

@@ -18,7 +18,7 @@ func (r *Repository) SubmitHandoff(userID uint64, orderID uint64, req SubmitHand
 		if order.OwnerID != userID {
 			return ErrPermissionDenied
 		}
-		if order.Status != "pending_handoff" || order.HandoffStatus != "pending_owner" {
+		if order.Status != orderStatusPendingHandoff || order.HandoffStatus != handoffStatusPendingOwner {
 			return ErrOrderCannotHandoff
 		}
 		record := model.HandoffRecord{
@@ -31,7 +31,7 @@ func (r *Repository) SubmitHandoff(userID uint64, orderID uint64, req SubmitHand
 		if err := tx.Create(&record).Error; err != nil {
 			return err
 		}
-		order.HandoffStatus = "pending_renter_confirm"
+		order.HandoffStatus = handoffStatusPendingRenterConfirm
 		orderID := order.ID
 		if err := notification.Append(tx, notification.Entry{
 			UserID:  order.RenterID,

backend/internal/modules/order/lifecycle.go

@@ -18,7 +18,7 @@ func (r *Repository) Create(renterID uint64, req CreateRequest) (*OrderDTO, erro
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&listing, req.ListingID).Error; err != nil {
 			return err
 		}
-		if listing.Status != "published" || listing.ReviewStatus != "approved" || listing.InTransaction {
+		if listing.Status != listingStatusPublished || listing.ReviewStatus != listingReviewStatusApproved || listing.InTransaction {
 			return ErrListingUnavailable
 		}
 		if listing.OwnerID == renterID {
@@ -58,9 +58,9 @@ func (r *Repository) Create(renterID uint64, req CreateRequest) (*OrderDTO, erro
 			DepositWaivedAmountCent:   waivedDepositAmountCent,
 			PlatformFeeCent:           pricing.PlatformFeeCent,
 			AccountSnapshot:           snapshot,
-			Status:                    "pending_payment",
+			Status:                    orderStatusPendingPayment,
-			HandoffStatus:             "none",
+			HandoffStatus:             handoffStatusNone,
-			SettlementStatus:          "unsettled",
+			SettlementStatus:          settlementStatusUnsettled,
 		}
 		if err := tx.Create(&order).Error; err != nil {
 			return err
@@ -112,7 +112,7 @@ func activeDepositFreeUsed(tx *gorm.DB, renterID uint64) (int64, error) {
 	err := tx.Model(&model.RentalOrder{}).
 		Where("renter_id = ? AND status NOT IN ?",
 			renterID,
-			[]string{"completed", "cancelled", "closed"},
+			[]string{orderStatusCompleted, orderStatusCancelled, orderStatusClosed},
 		).
 		Select("COALESCE(SUM(deposit_waived_amount_cent), 0)").
 		Scan(&used).Error
@@ -139,10 +139,10 @@ func (r *Repository) ConfirmPaidFromChannel(orderID uint64, providerBizNo string
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&order, orderID).Error; err != nil {
 			return err
 		}
-		if order.Status == "pending_handoff" || order.Status == "renting" {
+		if order.Status == orderStatusPendingHandoff || order.Status == orderStatusRenting {
 			return nil
 		}
-		if order.Status != "pending_payment" {
+		if order.Status != orderStatusPendingPayment {
 			return ErrOrderCannotPay
 		}
 
@@ -150,7 +150,7 @@ func (r *Repository) ConfirmPaidFromChannel(orderID uint64, providerBizNo string
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&listing, order.ListingID).Error; err != nil {
 			return err
 		}
-		if listing.Status != "published" || listing.ReviewStatus != "approved" || !listing.InTransaction {
+		if listing.Status != listingStatusPublished || listing.ReviewStatus != listingReviewStatusApproved || !listing.InTransaction {
 			return ErrListingUnavailable
 		}
 		var account model.GameAccount
@@ -160,10 +160,10 @@ func (r *Repository) ConfirmPaidFromChannel(orderID uint64, providerBizNo string
 
 		// 租客已通过外部渠道付款，这里不写租客钱包流水。
 		orderID := order.ID
-		order.Status = "pending_handoff"
+		order.Status = orderStatusPendingHandoff
-		order.HandoffStatus = "pending_owner"
+		order.HandoffStatus = handoffStatusPendingOwner
-		listing.Status = "rented"
+		listing.Status = listingStatusRented
-		account.Status = "rented"
+		account.Status = accountStatusRented
 		conv, err := chat.EnsureOrderConversation(tx, order)
 		if err != nil {
 			return err
@@ -215,7 +215,7 @@ func (r *Repository) Cancel(userID uint64, orderID uint64) error {
 			First(&order).Error; err != nil {
 			return err
 		}
-		if order.Status != "pending_payment" && order.Status != "pending_handoff" {
+		if order.Status != orderStatusPendingPayment && order.Status != orderStatusPendingHandoff {
 			return ErrOrderCannotCancel
 		}
 		var listing model.RentalListing
@@ -228,12 +228,12 @@ func (r *Repository) Cancel(userID uint64, orderID uint64) error {
 		}
 
 		beforeStatus := order.Status
-		order.Status = "cancelled"
+		order.Status = orderStatusCancelled
-		order.HandoffStatus = "cancelled"
+		order.HandoffStatus = handoffStatusCancelled
 		orderID := order.ID
-		if beforeStatus == "pending_handoff" {
+		if beforeStatus == orderStatusPendingHandoff {
 			totalCent := order.RentAmountCent + order.DepositAmountCent
-			action, err := r.prepareRefund(&order, totalCent, "cancel_refund", "取消订单原路退款")
+			action, err := r.prepareRefund(&order, totalCent, refundBizCancel, "取消订单原路退款")
 			if err != nil {
 				return err
 			}
@@ -259,9 +259,9 @@ func (r *Repository) Cancel(userID uint64, orderID uint64) error {
 		); err != nil {
 			return err
 		}
-		listing.Status = "published"
+		listing.Status = listingStatusPublished
 		listing.InTransaction = false
-		account.Status = "published"
+		account.Status = accountStatusPublished
 		if err := tx.Save(&order).Error; err != nil {
 			return err
 		}
@@ -286,7 +286,7 @@ func (r *Repository) ConfirmReceive(userID uint64, orderID uint64) error {
 		if order.RenterID != userID {
 			return ErrPermissionDenied
 		}
-		if order.Status != "pending_handoff" || order.HandoffStatus != "pending_renter_confirm" {
+		if order.Status != orderStatusPendingHandoff || order.HandoffStatus != handoffStatusPendingRenterConfirm {
 			return ErrOrderCannotReceive
 		}
 		now := time.Now()
@@ -295,8 +295,8 @@ func (r *Repository) ConfirmReceive(userID uint64, orderID uint64) error {
 			Update("confirmed_by_renter_at", now).Error; err != nil {
 			return err
 		}
-		order.Status = "renting"
+		order.Status = orderStatusRenting
-		order.HandoffStatus = "received"
+		order.HandoffStatus = handoffStatusReceived
 		durationHours := orderDurationHours(order)
 		order.EstimatedDurationHours = durationHours
 		order.RentedAt = &now

backend/internal/modules/order/queries.go

@@ -102,7 +102,7 @@ func pendingPaymentTimeoutMinutes(tx *gorm.DB) int {
 }
 
 func applyPaymentDeadline(dto *OrderDTO, order model.RentalOrder, timeoutMinutes int) {
-	if dto == nil || order.Status != "pending_payment" || timeoutMinutes <= 0 {
+	if dto == nil || order.Status != orderStatusPendingPayment || timeoutMinutes <= 0 {
 		return
 	}
 	deadline := order.CreatedAt.Add(time.Duration(timeoutMinutes) * time.Minute)
@@ -120,7 +120,7 @@ func (r *Repository) latestCheckoutAdminDTO(orderID uint64) *CheckoutDTO {
 
 func shouldAttachCheckout(status string) bool {
 	switch status {
-	case "pending_checkout_confirm", "pending_checkout_accept", "checkout_disputing", "completed":
+	case orderStatusPendingCheckoutConfirm, orderStatusPendingCheckoutAccept, orderStatusCheckoutDisputing, orderStatusCompleted:
 		return true
 	default:
 		return false

backend/internal/modules/order/refund.go

@@ -13,7 +13,7 @@ func (r *Repository) prepareRefund(order *model.RentalOrder, amountCent int64, b
 	if r.refundFunc == nil {
 		return nil, ErrDependencyUnavailable
 	}
-	order.RefundStatus = "pending"
+	order.RefundStatus = refundStatusPending
 	order.RefundAmountCent = amountCent
 	order.RefundedAt = nil
 	return &refundAction{