基础架构

internal/domains/finance/entities/wallet.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/google/uuid"
 	"github.com/shopspring/decimal"
 	"gorm.io/gorm"
 )
@@ -69,3 +70,11 @@ func (w *Wallet) SubtractBalance(amount decimal.Decimal) error {
 func (w *Wallet) GetFormattedBalance() string {
 	return w.Balance.String()
 }
+
+// BeforeCreate GORM钩子：创建前自动生成UUID
+func (w *Wallet) BeforeCreate(tx *gorm.DB) error {
+	if w.ID == "" {
+		w.ID = uuid.New().String()
+	}
+	return nil
+}