首次提交：姜十三论坛
后端 Go+Gin：认证/CSRF/限流、板块、帖子、评论、点赞、通知、用户资料、置顶推荐；前端 Next.js 16：发帖/编辑/删除、搜索、分页、点赞、通知中心、设置；基础设施 docker-compose 与配置模板；添加 .gitignore 与专有许可证（保留所有权利）
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63
backend/model/db.go
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63
backend/model/db.go
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package model
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import (
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"fmt"
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"log"
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"gorm.io/driver/postgres"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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// DB 全局数据库实例
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var DB *gorm.DB
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// InitDB 连接 PostgreSQL 并自动迁移
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func InitDB(dsn string) error {
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db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
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Logger: logger.Default.LogMode(logger.Warn),
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})
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if err != nil {
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return fmt.Errorf("连接 PostgreSQL 失败: %w", err)
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}
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if err := db.AutoMigrate(
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&User{}, &Board{}, &Post{}, &Comment{}, &RefreshToken{}, &Like{}, &Notification{},
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); err != nil {
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return fmt.Errorf("自动迁移失败: %w", err)
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}
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DB = db
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seedDefaultBoards(db)
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log.Println("[model] PostgreSQL 数据库初始化完成")
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return nil
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}
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// PingDB 检测数据库连接
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func PingDB() error {
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if DB == nil {
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return fmt.Errorf("数据库未初始化")
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}
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sqlDB, err := DB.DB()
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if err != nil {
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return err
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}
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return sqlDB.Ping()
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}
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// seedDefaultBoards 写入默认板块
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func seedDefaultBoards(db *gorm.DB) {
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defaults := []Board{
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{Name: "综合讨论", Description: "什么都可以聊", Icon: "message-circle", SortOrder: 1},
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{Name: "技术分享", Description: "分享技术心得与问题", Icon: "code", SortOrder: 2},
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{Name: "问答求助", Description: "提问与解答", Icon: "help-circle", SortOrder: 3},
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{Name: "闲聊灌水", Description: "轻松闲聊", Icon: "coffee", SortOrder: 4},
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}
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for _, b := range defaults {
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var count int64
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db.Model(&Board{}).Where("name = ?", b.Name).Count(&count)
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if count == 0 {
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_ = db.Create(&b).Error
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}
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}
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}
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136
backend/model/models.go
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136
backend/model/models.go
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package model
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import (
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"time"
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"gorm.io/gorm"
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)
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// Role 用户角色
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type Role string
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const (
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RoleUser Role = "user"
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RoleAdmin Role = "admin"
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)
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// 内容审核状态
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const (
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ContentStatusPending = "pending"
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ContentStatusPublished = "published"
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ContentStatusRejected = "rejected"
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)
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// 帖子类型
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const (
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PostTypeNormal = "normal"
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PostTypeQuestion = "question"
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)
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// User 用户表
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type User struct {
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ID uint `gorm:"primaryKey" json:"id"`
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Username string `gorm:"uniqueIndex;size:128;not null" json:"username"`
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Email string `gorm:"index;size:128;default:''" json:"-"`
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Password string `gorm:"size:128;not null" json:"-"`
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Nickname string `gorm:"size:64" json:"nickname"`
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Avatar string `gorm:"size:512" json:"avatar"`
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Role Role `gorm:"size:16;default:user" json:"role"`
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Banned bool `gorm:"default:false" json:"banned"`
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TokenVersion int `gorm:"default:0" json:"-"` // token 版本号，改密码/封禁时递增使旧 JWT 失效
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
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}
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// RefreshToken 刷新令牌表（支持服务端撤销与轮转）
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type RefreshToken struct {
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ID uint `gorm:"primaryKey" json:"id"`
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UserID uint `gorm:"index;not null" json:"user_id"`
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Token string `gorm:"uniqueIndex;size:128;not null" json:"-"`
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ExpiresAt time.Time `gorm:"index;not null" json:"expires_at"`
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Revoked bool `gorm:"default:false" json:"revoked"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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// Board 论坛板块
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type Board struct {
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ID uint `gorm:"primaryKey" json:"id"`
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Name string `gorm:"size:64;not null" json:"name"`
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Description string `gorm:"size:512" json:"description"`
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Icon string `gorm:"size:64;default:''" json:"icon"`
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ColorIndex int `gorm:"default:-1" json:"color_index"`
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SortOrder int `gorm:"default:0" json:"sort_order"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
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}
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// Post 帖子
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type Post struct {
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ID uint `gorm:"primaryKey" json:"id"`
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BoardID uint `gorm:"index;not null" json:"board_id"`
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UserID uint `gorm:"index;not null" json:"user_id"`
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Title string `gorm:"size:256;not null" json:"title"`
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Content string `gorm:"type:text;not null" json:"content"`
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Tags string `gorm:"size:256" json:"tags"`
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PostType string `gorm:"size:16;default:normal;index" json:"post_type"`
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Pinned int `gorm:"default:0" json:"pinned"`
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Recommended bool `gorm:"default:false;index" json:"recommended"`
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Status string `gorm:"size:16;default:published;index" json:"status"`
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LikeCount int `gorm:"default:0" json:"like_count"`
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ViewCount int `gorm:"default:0" json:"view_count"`
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CommentCount int `gorm:"default:0" json:"comment_count"`
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Liked bool `gorm:"-" json:"liked"` // 当前用户是否已点赞（展示字段，不入库）
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
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Board Board `gorm:"foreignKey:BoardID" json:"board,omitempty"`
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User User `gorm:"foreignKey:UserID" json:"user,omitempty"`
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}
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// Comment 评论
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type Comment struct {
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ID uint `gorm:"primaryKey" json:"id"`
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PostID uint `gorm:"index;not null" json:"post_id"`
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UserID uint `gorm:"index;not null" json:"user_id"`
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Content string `gorm:"type:text;not null" json:"content"`
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Status string `gorm:"size:16;default:published;index" json:"status"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
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User User `gorm:"foreignKey:UserID" json:"user,omitempty"`
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}
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// Like 点赞记录（联合唯一索引防止重复点赞）
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type Like struct {
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ID uint `gorm:"primaryKey" json:"id"`
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PostID uint `gorm:"uniqueIndex:idx_post_user;not null" json:"post_id"`
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UserID uint `gorm:"uniqueIndex:idx_post_user;not null" json:"user_id"`
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CreatedAt time.Time `json:"created_at"`
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}
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// 通知类型
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const (
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NotificationTypeComment = "comment" // 评论了你的帖子
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NotificationTypeLike = "like" // 点赞了你的帖子
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)
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// Notification 站内通知
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type Notification struct {
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ID uint `gorm:"primaryKey" json:"id"`
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UserID uint `gorm:"index;not null" json:"user_id"` // 接收通知的用户
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ActorID uint `gorm:"not null" json:"actor_id"` // 触发通知的用户
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Type string `gorm:"size:16;not null;index" json:"type"` // comment | like
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PostID uint `gorm:"index;not null" json:"post_id"` // 关联帖子
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CommentID uint `gorm:"index" json:"comment_id"` // 关联评论（点赞时为 0）
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Content string `gorm:"size:256" json:"content"` // 内容预览
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IsRead bool `gorm:"default:false;index" json:"is_read"`
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CreatedAt time.Time `json:"created_at"`
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Actor User `gorm:"foreignKey:ActorID" json:"actor,omitempty"`
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Post Post `gorm:"foreignKey:PostID" json:"post,omitempty"`
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}
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