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mengyastore/mengyastore-backend-go/internal/database/models.go

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package database
import (
"database/sql/driver"
"encoding/json"
"fmt"
"time"
)
// StringSlice is a JSON-serialized string slice stored as a MySQL TEXT/JSON column.
type StringSlice []string
func (s StringSlice) Value() (driver.Value, error) {
if s == nil {
return "[]", nil
}
b, err := json.Marshal(s)
return string(b), err
}
func (s *StringSlice) Scan(src any) error {
var raw []byte
switch v := src.(type) {
case string:
raw = []byte(v)
case []byte:
raw = v
default:
return fmt.Errorf("StringSlice: unsupported type %T", src)
}
return json.Unmarshal(raw, s)
}
// ─── Products ────────────────────────────────────────────────────────────────
// ProductRow is the GORM model for the `products` table.
type ProductRow struct {
ID string `gorm:"primaryKey;size:36"`
Name string `gorm:"size:255;not null"`
Price float64 `gorm:"not null;default:0"`
DiscountPrice float64 `gorm:"default:0"`
Tags StringSlice `gorm:"type:json"`
CoverURL string `gorm:"size:500"`
ScreenshotURLs StringSlice `gorm:"type:json"`
VerificationURL string `gorm:"size:500;default:''"`
Description string `gorm:"type:text"`
Active bool `gorm:"default:true;index"`
RequireLogin bool `gorm:"default:false"`
MaxPerAccount int `gorm:"default:0"`
TotalSold int `gorm:"default:0"`
ViewCount int `gorm:"default:0"`
DeliveryMode string `gorm:"size:20;default:'auto'"`
// FulfillmentType: card=卡密库存 / fixed=固定内容(不限库存,内容见 FixedContent
FulfillmentType string `gorm:"size:16;default:card;index"`
FixedContent string `gorm:"type:text"`
ShowNote bool `gorm:"default:true"`
ShowContact bool `gorm:"default:true"`
CreatedAt time.Time `gorm:"index"`
}
func (ProductRow) TableName() string { return "products" }
// ProductCodeRow stores individual codes for a product (one row per code).
type ProductCodeRow struct {
ID uint `gorm:"primaryKey;autoIncrement"`
ProductID string `gorm:"size:36;not null;index"`
Code string `gorm:"type:text;not null"`
}
func (ProductCodeRow) TableName() string { return "product_codes" }
// ─── Orders ──────────────────────────────────────────────────────────────────
type OrderRow struct {
ID string `gorm:"primaryKey;size:36"`
ProductID string `gorm:"size:36;not null;index"`
ProductName string `gorm:"size:255;not null"`
UserAccount string `gorm:"size:255;index"`
UserName string `gorm:"size:255"`
Quantity int `gorm:"not null;default:1"`
DeliveredCodes StringSlice `gorm:"type:json"`
Status string `gorm:"size:20;not null;default:'pending';index"`
DeliveryMode string `gorm:"size:20;default:'auto'"`
Note string `gorm:"type:text"`
ContactPhone string `gorm:"size:50"`
ContactEmail string `gorm:"size:255"`
NotifyEmail string `gorm:"size:255"`
CreatedAt time.Time
}
func (OrderRow) TableName() string { return "orders" }
// ─── Site settings ───────────────────────────────────────────────────────────
// SiteSettingRow stores arbitrary key-value pairs for site-wide settings.
type SiteSettingRow struct {
Key string `gorm:"primaryKey;size:64"`
Value string `gorm:"type:text"`
}
func (SiteSettingRow) TableName() string { return "site_settings" }
// ─── Wishlists ───────────────────────────────────────────────────────────────
type WishlistRow struct {
ID uint `gorm:"primaryKey;autoIncrement"`
AccountID string `gorm:"size:255;not null;index:idx_wishlist,unique"`
ProductID string `gorm:"size:36;not null;index:idx_wishlist,unique"`
}
func (WishlistRow) TableName() string { return "wishlists" }
// ─── Chat messages ───────────────────────────────────────────────────────────
type ChatMessageRow struct {
ID string `gorm:"primaryKey;size:36"`
AccountID string `gorm:"size:255;not null;index"`
AccountName string `gorm:"size:255"`
Content string `gorm:"type:text;not null"`
SentAt time.Time `gorm:"not null"`
FromAdmin bool `gorm:"default:false"`
}
func (ChatMessageRow) TableName() string { return "chat_messages" }