初始提交：姜十三论坛 Jiang13 Forum

轻量自用论坛，Go 单二进制 + React SPA 内嵌 + SQLite。

Co-authored-by: Cursor <cursoragent@cursor.com>

model/db.go

@@ -0,0 +1,46 @@
+package model
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+var DB *gorm.DB
+
+// InitDB 初始化 SQLite 并自动迁移
+func InitDB(dbPath string) error {
+	dir := filepath.Dir(dbPath)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("创建数据库目录失败: %w", err)
+	}
+
+	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Warn),
+	})
+	if err != nil {
+		return fmt.Errorf("连接 SQLite 失败: %w", err)
+	}
+
+	sqlDB, err := db.DB()
+	if err != nil {
+		return err
+	}
+	sqlDB.SetMaxOpenConns(1)
+
+	if err := db.AutoMigrate(
+		&User{}, &Board{}, &Post{}, &Comment{},
+		&PostLike{}, &PostFavorite{},
+	); err != nil {
+		return fmt.Errorf("自动迁移失败: %w", err)
+	}
+
+	DB = db
+	log.Println("[model] SQLite 数据库初始化完成:", dbPath)
+	return nil
+}

model/models.go

@@ -0,0 +1,101 @@
+package model
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// Role 用户角色
+type Role string
+
+const (
+	RoleUser  Role = "user"
+	RoleAdmin Role = "admin"
+)
+
+// User 用户表
+type User struct {
+	ID        uint           `gorm:"primaryKey" json:"id"`
+	Username  string         `gorm:"uniqueIndex;size:64;not null" json:"username"`
+	Password  string         `gorm:"size:128;not null" json:"-"`
+	Nickname  string         `gorm:"size:64" json:"nickname"`
+	Avatar    string         `gorm:"size:256" json:"avatar"`
+	Role      Role           `gorm:"size:16;default:user" json:"role"`
+	Banned    bool           `gorm:"default:false" json:"banned"`
+	BannedAt  *time.Time     `json:"banned_at,omitempty"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+// Board 论坛板块
+type Board struct {
+	ID          uint           `gorm:"primaryKey" json:"id"`
+	Name        string         `gorm:"size:64;not null" json:"name"`
+	Description string         `gorm:"size:512" json:"description"`
+	SortOrder   int            `gorm:"default:0" json:"sort_order"`
+	CreatedAt   time.Time      `json:"created_at"`
+	UpdatedAt   time.Time      `json:"updated_at"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+// Post 帖子
+type Post struct {
+	ID        uint           `gorm:"primaryKey" json:"id"`
+	BoardID   uint           `gorm:"index;not null" json:"board_id"`
+	UserID    uint           `gorm:"index;not null" json:"user_id"`
+	Title     string         `gorm:"size:256;not null" json:"title"`
+	Content   string         `gorm:"type:text;not null" json:"content"`
+	Tags      string         `gorm:"size:256" json:"tags"`
+	Pinned    bool           `gorm:"default:false" json:"pinned"`
+	LikeCount int            `gorm:"default:0" json:"like_count"`
+	ViewCount int            `gorm:"default:0" json:"view_count"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Board    Board     `gorm:"foreignKey:BoardID" json:"board,omitempty"`
+	User     User      `gorm:"foreignKey:UserID" json:"user,omitempty"`
+	Comments []Comment `gorm:"foreignKey:PostID" json:"comments,omitempty"`
+}
+
+// Comment 楼层评论
+type Comment struct {
+	ID        uint           `gorm:"primaryKey" json:"id"`
+	PostID    uint           `gorm:"index;not null" json:"post_id"`
+	UserID    uint           `gorm:"index" json:"user_id"` // 0 表示游客
+	Floor     int            `gorm:"not null" json:"floor"`
+	Content   string         `gorm:"type:text;not null" json:"content"`
+	ReplyTo   *uint          `gorm:"index" json:"reply_to,omitempty"`
+	GuestNick   string       `gorm:"size:64" json:"guest_nick,omitempty"`
+	GuestEmail  string       `gorm:"size:128" json:"guest_email,omitempty"`
+	GuestURL    string       `gorm:"size:256" json:"guest_url,omitempty"`
+	IsPrivate   bool         `gorm:"default:false" json:"is_private"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	User        User     `gorm:"foreignKey:UserID" json:"user,omitempty"`
+	Post        Post     `gorm:"foreignKey:PostID" json:"post,omitempty"`
+	ReplyTarget *Comment `gorm:"-" json:"reply_target,omitempty"`
+	ContentHidden bool   `gorm:"-" json:"content_hidden"`
+}
+
+// PostLike 帖子点赞
+type PostLike struct {
+	ID        uint      `gorm:"primaryKey" json:"id"`
+	PostID    uint      `gorm:"uniqueIndex:idx_post_user;not null" json:"post_id"`
+	UserID    uint      `gorm:"uniqueIndex:idx_post_user;not null" json:"user_id"`
+	CreatedAt time.Time `json:"created_at"`
+}
+
+// PostFavorite 帖子收藏
+type PostFavorite struct {
+	ID        uint      `gorm:"primaryKey" json:"id"`
+	PostID    uint      `gorm:"uniqueIndex:idx_fav_post_user;not null" json:"post_id"`
+	UserID    uint      `gorm:"uniqueIndex:idx_fav_post_user;not null" json:"user_id"`
+	CreatedAt time.Time `json:"created_at"`
+
+	Post Post `gorm:"foreignKey:PostID" json:"post,omitempty"`
+}