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MetaLab/internal/model/post.go
Victor_Jay 66a802beb7 fix: 添加 posts 复合索引 idx_posts_user_status
- 为 UserID 和 Status 列添加复合索引 idx_posts_user_status,优化 user_id + status 联合查询性能
2026-06-02 17:24:45 +08:00

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package model
import (
"time"
"gorm.io/gorm"
)
// Post 帖子/文章模型
type Post struct {
ID uint `gorm:"primarykey" json:"id"`
Title string `gorm:"type:varchar(200);not null" json:"title"`
Body string `gorm:"type:text" json:"body"` // Markdown content
Excerpt string `gorm:"type:varchar(500)" json:"excerpt"` // plain text summary for list
UserID uint `gorm:"index;index:idx_posts_user_status,priority:1;not null" json:"user_id"`
Status string `gorm:"type:varchar(20);index;index:idx_posts_user_status,priority:2;default:draft;not null" json:"status"`
IsLocked bool `gorm:"default:false" json:"is_locked"`
LockReason string `gorm:"type:varchar(500);default:''" json:"lock_reason,omitempty"`
PendingTitle string `gorm:"type:varchar(200);default:''" json:"pending_title,omitempty"`
PendingBody string `gorm:"type:text" json:"pending_body,omitempty"`
RejectReason string `gorm:"type:varchar(500);default:''" json:"reject_reason,omitempty"`
AllowComment bool `gorm:"default:true" json:"allow_comment"`
CommentsCount int `gorm:"default:0" json:"comments_count"` // 评论数(冗余计数器)
TotalEnergyReceived int `gorm:"default:0" json:"total_energy_received"` // 文章累计被赋能域能乘10冗余计数
LikesCount int `gorm:"default:0" json:"likes_count"` // 点赞数(冗余计数器)
DislikesCount int `gorm:"default:0" json:"dislikes_count"` // 踩数(冗余计数器,仅后台可见)
FavoritesCount int `gorm:"default:0" json:"favorites_count"` // 收藏数(冗余计数器)
ViewsCount int `gorm:"default:0" json:"views_count"` // 阅读数(冗余计数器,已登录去重)
DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
// 非数据库字段(联表查询填充)
// gorm:"-:migration" 指定不创建/迁移该列,"<-:false" 禁止写入,"column:author_name" 允许
// 从 JOIN 查询的 users.username AS author_name 别名中读取
AuthorName string `gorm:"-:migration;<-:false;column:author_name" json:"author_name,omitempty"`
}
// 帖子状态常量
const (
PostStatusDraft = "draft"
PostStatusPending = "pending"
PostStatusApproved = "approved"
PostStatusRejected = "rejected"
PostStatusLocked = "locked"
)