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MetaLab/internal/model/comment.go
Victor_Jay b7acc91f8c feat: 实现评论系统(后端 + 前端)
- 新增 Comment/CommentMention 模型,Post 新增 CommentsCount 冗余计数器
- 新增 CommentRepo(CRUD + @搜索 LV3+ + 回复统计 + 文章作者查询)
- 新增 CommentService(发表/回复/删除/@解析/通知 NotifyComment/NotifyCommentReply)
- 新增 CommentController(6 个 API 端点),commentUseCase ISP 接口
- 新增评论路由(公开读取 + 需登录写入),依赖注入,错误哨兵,数据库迁移
- 前端评论区 HTML/CSS/JS:分页加载、回复折叠展开、内联回复表单、@提及自动补全
2026-06-01 13:24:16 +08:00

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package model
import "time"
// Comment 评论模型
type Comment struct {
ID uint `gorm:"primarykey" json:"id"`
PostID uint `gorm:"index;not null" json:"post_id"`
RootID uint `gorm:"index;not null" json:"root_id"` // 根评论ID顶级评论指向自身
ParentID *uint `gorm:"index" json:"parent_id"` // 父评论IDNULL=顶级评论
ReplyToUID string `gorm:"type:varchar(36);default:''" json:"reply_to_uid"` // 被回复者UID
Body string `gorm:"type:text;not null" json:"body"` // 评论内容(纯文本 + 图片URL
IsDeleted bool `gorm:"default:false;index" json:"is_deleted"`
LikesCount int `gorm:"default:0" json:"likes_count"`
DislikesCount int `gorm:"default:0" json:"dislikes_count"` // 仅后台可见
UserID uint `gorm:"index;not null" json:"user_id"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
// 非数据库字段(联表查询填充)
AuthorName string `gorm:"-:migration;<-:false;column:author_name" json:"author_name,omitempty"`
AuthorAvatar string `gorm:"-:migration;<-:false;column:author_avatar" json:"author_avatar,omitempty"`
AuthorLevel int `gorm:"-:migration;<-:false;column:author_level" json:"author_level,omitempty"`
// ReplyToName 被回复者当前显示名JOIN users 获取,动态解析,改名后自动更新)
ReplyToName string `gorm:"-:migration;<-:false" json:"reply_to_name,omitempty"`
// RepliesCount 回复数非DB字段查询填充
RepliesCount int `gorm:"-:migration;<-:false" json:"replies_count,omitempty"`
}
// CommentMention @提及映射绑定UID不是username支持改名后自动更新显示名
type CommentMention struct {
ID uint `gorm:"primarykey" json:"id"`
CommentID uint `gorm:"uniqueIndex:idx_comment_uid,priority:1;not null" json:"comment_id"`
UID string `gorm:"type:varchar(36);uniqueIndex:idx_comment_uid,priority:2;not null" json:"uid"`
}
// UserSearchResult @搜索用户结果
type UserSearchResult struct {
UID string `json:"uid"`
Username string `json:"username"`
Level int `json:"level"`
}