重构后端服务架构并优化前端错误处理

go-backend/models/payment.go

@@ -0,0 +1,44 @@
+package models
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+type PaymentType string
+type PaymentMethod string
+type PaymentStatus string
+
+const (
+	PaymentTypeAdvance PaymentType = "advance"
+	PaymentTypeFinal   PaymentType = "final"
+
+	PaymentMethodWechat PaymentMethod = "wechat"
+	PaymentMethodAlipay PaymentMethod = "alipay"
+	PaymentMethodBank   PaymentMethod = "bank"
+
+	PaymentStatusPending  PaymentStatus = "pending"
+	PaymentStatusSuccess  PaymentStatus = "success"
+	PaymentStatusFailed   PaymentStatus = "failed"
+	PaymentStatusRefunded PaymentStatus = "refunded"
+)
+
+type Payment struct {
+	ID             uint           `gorm:"primaryKey" json:"id"`
+	PaymentNo      string         `gorm:"uniqueIndex;not null" json:"payment_no"`
+	OrderID        uint           `gorm:"not null" json:"order_id"`
+	UserID         uint           `gorm:"not null" json:"user_id"`
+	Amount         float64        `gorm:"not null" json:"amount"`
+	PaymentType    PaymentType    `gorm:"not null" json:"payment_type"`
+	PaymentMethod  PaymentMethod  `gorm:"not null" json:"payment_method"`
+	Status         PaymentStatus  `gorm:"default:pending" json:"status"`
+	TransactionID  string         `json:"transaction_id"`
+	CreatedAt      time.Time      `json:"created_at"`
+	UpdatedAt      time.Time      `json:"updated_at"`
+	DeletedAt      gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+func (Payment) TableName() string {
+	return "payments"
+}