feat: 类型帖互动、积分经济与发帖体验

补齐问答采纳/重开、投票匿名与有票禁编、悬赏过期退回、抽奖回帖开奖,并接入积分账本与发帖附件可见性。

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
2026-09-16 03:17:07 +08:00
parent 1ef3d8e299
commit b9ba8cb8c9
58 changed files with 6913 additions and 506 deletions

View File

@@ -40,9 +40,13 @@ type PostListQuery struct {
func toPostListItems(posts []model.Post) []PostListItem {
items := make([]PostListItem, 0, len(posts))
for _, p := range posts {
pt := model.NormalizePostType(p.PostType)
items = append(items, PostListItem{
ID: p.ID, BoardID: p.BoardID, UserID: p.UserID,
Title: p.Title, Tags: p.Tags, PostType: p.PostType,
Title: p.Title, Tags: p.Tags, PostType: pt,
TypeStatus: ComputeTypeStatus(pt, p.TypeMeta),
ContentAccess: model.NormalizeContentAccess(p.ContentAccess),
AccessPoints: p.AccessPoints,
Pinned: p.Pinned, Recommended: p.Recommended, LikeCount: p.LikeCount, ViewCount: p.ViewCount,
CommentCount: p.CommentCount, Status: p.Status, CreatedAt: p.CreatedAt,
Board: p.Board, User: p.User,
@@ -67,23 +71,26 @@ type LastReplyInfo struct {
// PostListItem 帖子列表项(不含正文)
type PostListItem struct {
ID uint `json:"id"`
BoardID uint `json:"board_id"`
UserID uint `json:"user_id"`
Title string `json:"title"`
Tags string `json:"tags"`
PostType string `json:"post_type"`
Pinned int `json:"pinned"`
Recommended bool `json:"recommended"`
LikeCount int `json:"like_count"`
ViewCount int `json:"view_count"`
CommentCount int `json:"comment_count"`
Status string `json:"status"`
Liked bool `json:"liked"`
CreatedAt time.Time `json:"created_at"`
LastReply *LastReplyInfo `json:"last_reply,omitempty"`
Board model.Board `json:"board"`
User model.User `json:"user"`
ID uint `json:"id"`
BoardID uint `json:"board_id"`
UserID uint `json:"user_id"`
Title string `json:"title"`
Tags string `json:"tags"`
PostType string `json:"post_type"`
TypeStatus string `json:"type_status,omitempty"` // unsolved|solved|open|closed|expired|drawn
ContentAccess string `json:"content_access"`
AccessPoints int `json:"access_points"`
Pinned int `json:"pinned"`
Recommended bool `json:"recommended"`
LikeCount int `json:"like_count"`
ViewCount int `json:"view_count"`
CommentCount int `json:"comment_count"`
Status string `json:"status"`
Liked bool `json:"liked"`
CreatedAt time.Time `json:"created_at"`
LastReply *LastReplyInfo `json:"last_reply,omitempty"`
Board model.Board `json:"board"`
User model.User `json:"user"`
}
// fillLastReply 批量填充每帖最后一条已发布评论(发帖人+时间),
@@ -327,9 +334,78 @@ func visibleToPost(post *model.Post, viewerID uint, loadActor func() *Actor) boo
return loadActor().CanModerateBoard(post.BoardID)
}
// GetByIDForViewer 获取帖子详情(带可见性校验);通过校验才计入浏览量。
// viewerID 为当前登录用户(未登录传 0),loadActor 可传 nil
func (s *PostService) GetByIDForViewer(id, viewerID uint, loadActor func() *Actor) (*model.Post, error) {
// PostAttachmentDTO 附件对外字段
type PostAttachmentDTO struct {
ID uint `json:"id"`
Name string `json:"name"`
Size int `json:"size"`
MIME string `json:"mime"`
PricePoints int `json:"price_points"`
DownloadCount int `json:"download_count"`
Unlocked bool `json:"unlocked"` // 当前用户是否可直接下载(免费/已购/作者)
}
// PostDetail 帖子详情(含可见性裁剪与附件)
type PostDetail struct {
ID uint `json:"id"`
BoardID uint `json:"board_id"`
UserID uint `json:"user_id"`
Title string `json:"title"`
Content string `json:"content"`
Tags string `json:"tags"`
PostType string `json:"post_type"`
ContentAccess string `json:"content_access"`
AccessPoints int `json:"access_points"`
TypeMeta string `json:"type_meta"`
TypeStatus string `json:"type_status,omitempty"`
Pinned int `json:"pinned"`
Recommended bool `json:"recommended"`
Status string `json:"status"`
LikeCount int `json:"like_count"`
ViewCount int `json:"view_count"`
CommentCount int `json:"comment_count"`
Liked bool `json:"liked"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
Board model.Board `json:"board"`
User model.User `json:"user"`
ContentLocked bool `json:"content_locked"`
AccessHint string `json:"access_hint,omitempty"`
Attachments []PostAttachmentDTO `json:"attachments"`
Question *QuestionState `json:"question,omitempty"`
Poll *PollState `json:"poll,omitempty"`
Bounty *BountyState `json:"bounty,omitempty"`
Lottery *LotteryState `json:"lottery,omitempty"`
}
// CreatePostInput 发帖入参
type CreatePostInput struct {
UserID uint
BoardID uint
Title string
Content string
Tags string
PostType string
ContentAccess string
AccessPoints int
TypeMeta string
Status string
AttachmentIDs []uint
}
// UpdatePostInput 编辑入参
type UpdatePostInput struct {
Title string
Content string
Tags string
ContentAccess *string
AccessPoints *int
TypeMeta *string
AttachmentIDs *[]uint // nil=不改附件;非 nil=替换列表
}
// GetByIDForViewer 获取帖子详情(带状态可见性 + 正文访问控制)
func (s *PostService) GetByIDForViewer(id, viewerID uint, loadActor func() *Actor) (*PostDetail, error) {
var post model.Post
if err := s.db.Preload("Board").Preload("User").First(&post, id).Error; err != nil {
return nil, ErrPostNotFound
@@ -337,9 +413,504 @@ func (s *PostService) GetByIDForViewer(id, viewerID uint, loadActor func() *Acto
if !visibleToPost(&post, viewerID, loadActor) {
return nil, ErrPostNotFound
}
// 增加浏览量(待审/被拒内容不计)
// 惰性结算:悬赏过期退回 / 抽奖到期开奖
_ = s.settleExpiredBountyIfNeeded(&post)
_ = s.settleDueLotteryIfNeeded(&post)
if post.TypeMeta != "" {
var fresh model.Post
if err := s.db.Select("type_meta").First(&fresh, post.ID).Error; err == nil {
post.TypeMeta = fresh.TypeMeta
}
}
s.db.Model(&post).UpdateColumn("view_count", gorm.Expr("view_count + 1"))
return &post, nil
post.ViewCount++
detail := buildPostDetail(&post)
locked, hint := s.evalContentAccess(&post, viewerID, loadActor)
detail.ContentLocked = locked
detail.AccessHint = hint
if locked {
detail.Content = ""
}
atts, _ := s.listAttachmentDTOs(post.ID, viewerID, post.UserID)
detail.Attachments = atts
s.fillInteractState(detail, &post, viewerID, loadActor)
return detail, nil
}
func buildPostDetail(post *model.Post) *PostDetail {
return &PostDetail{
ID: post.ID, BoardID: post.BoardID, UserID: post.UserID,
Title: post.Title, Content: post.Content, Tags: post.Tags,
PostType: model.NormalizePostType(post.PostType),
ContentAccess: model.NormalizeContentAccess(post.ContentAccess),
AccessPoints: post.AccessPoints, TypeMeta: post.TypeMeta,
TypeStatus: ComputeTypeStatus(post.PostType, post.TypeMeta),
Pinned: post.Pinned, Recommended: post.Recommended, Status: post.Status,
LikeCount: post.LikeCount, ViewCount: post.ViewCount, CommentCount: post.CommentCount,
Liked: post.Liked, CreatedAt: post.CreatedAt, UpdatedAt: post.UpdatedAt,
Board: post.Board, User: post.User,
Attachments: []PostAttachmentDTO{},
}
}
func (s *PostService) evalContentAccess(post *model.Post, viewerID uint, loadActor func() *Actor) (locked bool, hint string) {
access := model.NormalizeContentAccess(post.ContentAccess)
if access == model.ContentAccessPublic {
return false, ""
}
// 作者与版主始终可见
if viewerID > 0 && post.UserID == viewerID {
return false, ""
}
if loadActor != nil && loadActor().CanModerateBoard(post.BoardID) {
return false, ""
}
switch access {
case model.ContentAccessLogin:
if viewerID == 0 {
return true, "登录后可见全文"
}
return false, ""
case model.ContentAccessReply:
if viewerID == 0 {
return true, "回复本帖后可见全文"
}
var n int64
s.db.Model(&model.Comment{}).
Where("post_id = ? AND user_id = ? AND status = ? AND deleted_at IS NULL",
post.ID, viewerID, model.ContentStatusPublished).
Count(&n)
if n == 0 {
return true, "回复本帖后可见全文"
}
return false, ""
case model.ContentAccessPoints:
need := post.AccessPoints
if need <= 0 {
need = 1
}
if viewerID == 0 {
return true, "支付积分后可见全文"
}
var n int64
s.db.Model(&model.PostContentUnlock{}).
Where("post_id = ? AND user_id = ?", post.ID, viewerID).Count(&n)
if n > 0 {
return false, ""
}
return true, "支付积分后可见全文"
default:
return false, ""
}
}
func (s *PostService) listAttachmentDTOs(postID, viewerID, authorID uint) ([]PostAttachmentDTO, error) {
var rows []model.PostAttachment
if err := s.db.Where("post_id = ?", postID).Order("id ASC").Find(&rows).Error; err != nil {
return nil, err
}
out := make([]PostAttachmentDTO, 0, len(rows))
unlockedIDs := map[uint]bool{}
if viewerID > 0 {
ids := make([]uint, 0, len(rows))
for _, r := range rows {
if r.PricePoints > 0 {
ids = append(ids, r.ID)
}
}
if len(ids) > 0 {
var unlocks []model.PostAttachmentUnlock
s.db.Where("attachment_id IN ? AND user_id = ?", ids, viewerID).Find(&unlocks)
for _, u := range unlocks {
unlockedIDs[u.AttachmentID] = true
}
}
}
for _, r := range rows {
ok := r.PricePoints <= 0 || viewerID == authorID || unlockedIDs[r.ID]
out = append(out, PostAttachmentDTO{
ID: r.ID, Name: r.Name, Size: r.Size, MIME: r.MIME,
PricePoints: r.PricePoints, DownloadCount: r.DownloadCount, Unlocked: ok,
})
}
return out, nil
}
// UnlockContent 积分解锁正文
func (s *PostService) UnlockContent(userID, postID uint) (*PostDetail, error) {
var post model.Post
if err := s.db.Preload("Board").Preload("User").First(&post, postID).Error; err != nil {
return nil, ErrPostNotFound
}
if model.NormalizeContentAccess(post.ContentAccess) != model.ContentAccessPoints {
return nil, errors.New("本文无需积分解锁")
}
if post.UserID == userID {
return buildPostDetail(&post), nil
}
need := post.AccessPoints
if need <= 0 {
need = 1
}
err := s.db.Transaction(func(tx *gorm.DB) error {
var n int64
if err := tx.Model(&model.PostContentUnlock{}).
Where("post_id = ? AND user_id = ?", postID, userID).Count(&n).Error; err != nil {
return err
}
if n > 0 {
return nil
}
if _, err := DebitTx(tx, userID, need, model.PointReasonUnlockPost, "post", postID, "解锁帖子:"+post.Title); err != nil {
return err
}
if post.UserID > 0 {
if _, err := CreditTx(tx, post.UserID, need, model.PointReasonUnlockPost, "post_earn", postID, "正文解锁收益"); err != nil {
return err
}
}
return tx.Create(&model.PostContentUnlock{
PostID: postID, UserID: userID, Points: need,
}).Error
})
if err != nil {
return nil, err
}
detail := buildPostDetail(&post)
atts, _ := s.listAttachmentDTOs(post.ID, userID, post.UserID)
detail.Attachments = atts
s.fillInteractState(detail, &post, userID, nil)
return detail, nil
}
// Create 创建帖子。status 由 handler 按角色计算
func (s *PostService) Create(in CreatePostInput) (*PostDetail, error) {
title := strings.TrimSpace(in.Title)
content := strings.TrimSpace(in.Content)
if title == "" {
return nil, errors.New("标题不能为空")
}
if content == "" {
return nil, errors.New("内容不能为空")
}
if in.BoardID == 0 {
return nil, errors.New("请选择板块")
}
status := in.Status
if status != model.ContentStatusPending && status != model.ContentStatusPublished {
status = model.ContentStatusPending
}
postType := model.NormalizePostType(in.PostType)
if !model.ValidPostType(postType) {
return nil, errors.New("无效的帖子类型")
}
access := model.NormalizeContentAccess(in.ContentAccess)
accessPts := in.AccessPoints
if access == model.ContentAccessPoints {
if accessPts <= 0 {
return nil, errors.New("请设置解锁所需积分")
}
if accessPts > 100000 {
return nil, errors.New("解锁积分过高")
}
} else {
accessPts = 0
}
typeMeta, err := NormalizeAndValidateTypeMeta(postType, in.TypeMeta)
if err != nil {
return nil, err
}
if err := s.checkNewUserCooldown(in.UserID); err != nil {
return nil, err
}
now := time.Now().UTC()
if postType == model.PostTypeQuestion {
qm, _ := parseQuestionMeta(typeMeta)
if qm == nil {
qm = &QuestionMeta{}
}
typeMeta, _ = encodeMeta(qm)
}
// 悬赏:创建时托管积分 + 防刷(未结算上限 / 每日上限)
var bountyPts int
if postType == model.PostTypeBounty {
bm, _ := parseBountyMeta(typeMeta)
bountyPts = bm.Points
var bountyPosts []model.Post
s.db.Select("type_meta").
Where("user_id = ? AND post_type = ? AND deleted_at IS NULL", in.UserID, model.PostTypeBounty).
Find(&bountyPosts)
open := 0
for _, bp := range bountyPosts {
m, err := parseBountyMeta(bp.TypeMeta)
if err != nil {
continue
}
if m.Escrowed && m.AcceptedCommentID == 0 && !m.Refunded && !m.Expired {
open++
}
}
if open >= 3 {
return nil, errors.New("未结算悬赏最多同时 3 个,请先采纳或退回")
}
var todayN int64
s.db.Model(&model.Post{}).
Where("user_id = ? AND post_type = ? AND created_at >= CURRENT_DATE AND deleted_at IS NULL",
in.UserID, model.PostTypeBounty).
Count(&todayN)
if todayN >= 5 {
return nil, errors.New("今日悬赏发帖已达上限(5)")
}
bm.Escrowed = true
bm.Refunded = false
bm.Expired = false
bm.AcceptedCommentID = 0
if status == model.ContentStatusPublished {
days := normalizeExpireDays(bm.ExpireDays, 7, []int{3, 7, 14, 30})
bm.ExpireDays = 0
bm.EndsAt = endsAtFromDays(days, now)
}
typeMeta, _ = encodeMeta(bm)
}
if postType == model.PostTypeLottery {
lm, _ := parseLotteryMeta(typeMeta)
if lm.WinnerIDs == nil {
lm.WinnerIDs = []uint{}
}
if status == model.ContentStatusPublished {
days := normalizeExpireDays(lm.ExpireDays, 7, []int{1, 3, 7, 14})
lm.ExpireDays = 0
lm.EndsAt = endsAtFromDays(days, now)
}
typeMeta, _ = encodeMeta(lm)
}
post := &model.Post{
BoardID: in.BoardID, UserID: in.UserID,
Title: title, Content: content, Tags: in.Tags,
PostType: postType, ContentAccess: access, AccessPoints: accessPts,
TypeMeta: typeMeta, Status: status,
}
err = s.db.Transaction(func(tx *gorm.DB) error {
if err := tx.Create(post).Error; err != nil {
return err
}
if bountyPts > 0 {
if _, err := DebitTx(tx, in.UserID, bountyPts, model.PointReasonBountyEscrow, "post", post.ID, "悬赏托管:"+title); err != nil {
return err
}
}
if len(in.AttachmentIDs) == 0 {
return nil
}
if len(in.AttachmentIDs) > MaxPostAttachments {
return ErrTooManyAttachments
}
var atts []model.PostAttachment
if err := tx.Where("id IN ? AND user_id = ? AND post_id = 0", in.AttachmentIDs, in.UserID).
Find(&atts).Error; err != nil {
return err
}
if len(atts) != len(in.AttachmentIDs) {
return errors.New("部分附件无效或无权使用")
}
return tx.Model(&model.PostAttachment{}).
Where("id IN ? AND user_id = ? AND post_id = 0", in.AttachmentIDs, in.UserID).
Update("post_id", post.ID).Error
})
if err != nil {
return nil, err
}
s.db.Preload("Board").Preload("User").First(post, post.ID)
detail := buildPostDetail(post)
atts, _ := s.listAttachmentDTOs(post.ID, in.UserID, post.UserID)
detail.Attachments = atts
s.fillInteractState(detail, post, in.UserID, nil)
return detail, nil
}
func validateTypeMeta(postType, meta string) error {
_, err := NormalizeAndValidateTypeMeta(postType, meta)
return err
}
// Update 更新帖子(作者本人,或对该板块有审核权的管理成员)
func (s *PostService) Update(actor *Actor, postID, userID uint, in UpdatePostInput) (*PostDetail, error) {
var post model.Post
if err := s.db.First(&post, postID).Error; err != nil {
return nil, ErrPostNotFound
}
if post.UserID != userID && !actor.CanModerateBoard(post.BoardID) {
return nil, ErrPostForbidden
}
updates := map[string]interface{}{}
if in.Title != "" {
t := strings.TrimSpace(in.Title)
if t == "" {
return nil, errors.New("标题不能为空")
}
updates["title"] = t
}
if in.Content != "" {
c := strings.TrimSpace(in.Content)
if c == "" {
return nil, errors.New("内容不能为空")
}
updates["content"] = c
}
updates["tags"] = in.Tags
if in.ContentAccess != nil {
access := model.NormalizeContentAccess(*in.ContentAccess)
updates["content_access"] = access
if access == model.ContentAccessPoints {
pts := post.AccessPoints
if in.AccessPoints != nil {
pts = *in.AccessPoints
}
if pts <= 0 {
return nil, errors.New("请设置解锁所需积分")
}
updates["access_points"] = pts
} else {
updates["access_points"] = 0
}
} else if in.AccessPoints != nil && model.NormalizeContentAccess(post.ContentAccess) == model.ContentAccessPoints {
if *in.AccessPoints <= 0 {
return nil, errors.New("请设置解锁所需积分")
}
updates["access_points"] = *in.AccessPoints
}
if in.TypeMeta != nil {
pt := model.NormalizePostType(post.PostType)
meta, err := NormalizeAndValidateTypeMeta(pt, *in.TypeMeta)
if err != nil {
return nil, err
}
// 悬赏已托管:禁止改积分,保留结算/截止字段
if pt == model.PostTypeBounty {
old, _ := parseBountyMeta(post.TypeMeta)
neu, _ := parseBountyMeta(meta)
if old != nil && neu != nil {
neu.Escrowed = old.Escrowed
neu.Refunded = old.Refunded
neu.Expired = old.Expired
neu.AcceptedCommentID = old.AcceptedCommentID
neu.EndsAt = old.EndsAt
if old.Escrowed || old.AcceptedCommentID > 0 || old.Refunded || old.Expired {
neu.Points = old.Points
}
meta, _ = encodeMeta(neu)
}
}
// 投票已有票:明确报错,禁止改选项/单多选/匿名
if pt == model.PostTypePoll {
old, _ := parsePollMeta(post.TypeMeta)
neu, _ := parsePollMeta(meta)
if old != nil && neu != nil {
var n int64
s.db.Model(&model.PostPollVote{}).Where("post_id = ?", postID).Count(&n)
if n > 0 {
optsChanged := len(neu.Options) != len(old.Options)
if !optsChanged {
for i := range old.Options {
if neu.Options[i] != old.Options[i] {
optsChanged = true
break
}
}
}
if optsChanged || neu.Multi != old.Multi || neu.Anonymous != old.Anonymous {
return nil, ErrPollOptionsLocked
}
neu.Options = old.Options
neu.Multi = old.Multi
neu.Anonymous = old.Anonymous
neu.Closed = old.Closed
meta, _ = encodeMeta(neu)
} else {
neu.Closed = old.Closed
meta, _ = encodeMeta(neu)
}
}
}
if pt == model.PostTypeLottery {
old, _ := parseLotteryMeta(post.TypeMeta)
neu, _ := parseLotteryMeta(meta)
if old != nil && neu != nil {
neu.Drawn = old.Drawn
neu.WinnerIDs = old.WinnerIDs
neu.Closed = old.Closed
neu.EndsAt = old.EndsAt
if old.Drawn {
neu.Slots = old.Slots
}
meta, _ = encodeMeta(neu)
}
}
if pt == model.PostTypeQuestion {
old, _ := parseQuestionMeta(post.TypeMeta)
neu, _ := parseQuestionMeta(meta)
if old != nil && neu != nil {
// 解题态走专用 API,编辑帖子不覆盖
neu.Solved = old.Solved
neu.AcceptedCommentID = old.AcceptedCommentID
meta, _ = encodeMeta(neu)
}
}
updates["type_meta"] = meta
}
err := s.db.Transaction(func(tx *gorm.DB) error {
if err := tx.Model(&post).Updates(updates).Error; err != nil {
return err
}
if in.AttachmentIDs == nil {
return nil
}
ids := *in.AttachmentIDs
if len(ids) > MaxPostAttachments {
return ErrTooManyAttachments
}
if err := tx.Model(&model.PostAttachment{}).
Where("post_id = ? AND user_id = ?", postID, post.UserID).
Update("post_id", 0).Error; err != nil {
return err
}
if len(ids) == 0 {
return nil
}
var atts []model.PostAttachment
if err := tx.Where(
"id IN ? AND user_id = ? AND (post_id = 0 OR post_id = ?)",
ids, post.UserID, postID,
).Find(&atts).Error; err != nil {
return err
}
if len(atts) != len(ids) {
return errors.New("部分附件无效或无权使用")
}
return tx.Model(&model.PostAttachment{}).
Where("id IN ? AND user_id = ?", ids, post.UserID).
Update("post_id", postID).Error
})
if err != nil {
return nil, err
}
s.db.Preload("Board").Preload("User").First(&post, post.ID)
detail := buildPostDetail(&post)
atts, _ := s.listAttachmentDTOs(post.ID, userID, post.UserID)
detail.Attachments = atts
s.fillInteractState(detail, &post, userID, nil)
return detail, nil
}
// EnsurePostVisible 校验帖子对当前访问者可见(评论列表等场景复用,不增加浏览量)
@@ -354,105 +925,27 @@ func (s *PostService) EnsurePostVisible(postID, viewerID uint, loadActor func()
return nil
}
// Create 创建帖子。status 由 handler 按角色计算:
// 管理团队成员直发 published,普通用户进入 pending 等待审核
func (s *PostService) Create(userID uint, boardID uint, title, content, tags, postType, status string) (*model.Post, error) {
title = strings.TrimSpace(title)
content = strings.TrimSpace(content)
if title == "" {
return nil, errors.New("标题不能为空")
}
if content == "" {
return nil, errors.New("内容不能为空")
}
if boardID == 0 {
return nil, errors.New("请选择板块")
}
if status != model.ContentStatusPending && status != model.ContentStatusPublished {
status = model.ContentStatusPending
}
// 新用户 24h 冷静期校验
if err := s.checkNewUserCooldown(userID); err != nil {
return nil, err
}
post := &model.Post{
BoardID: boardID,
UserID: userID,
Title: title,
Content: content,
Tags: tags,
PostType: postType,
Status: status,
}
if err := s.db.Create(post).Error; err != nil {
return nil, err
}
// 预加载关联
s.db.Preload("Board").Preload("User").First(post, post.ID)
return post, nil
}
// checkNewUserCooldown 新用户发帖 24h 冷静期
func (s *PostService) checkNewUserCooldown(userID uint) error {
var user model.User
if err := s.db.First(&user, userID).Error; err != nil {
return err
}
// 注册不足 24 小时的新用户不能发帖
if time.Since(user.CreatedAt) < 24*time.Hour {
return errors.New("新用户注册 24 小时后才能发帖")
}
return nil
}
// Update 更新帖子(作者本人,或对该板块有审核权的管理成员)
func (s *PostService) Update(actor *Actor, postID, userID uint, title, content, tags string) (*model.Post, error) {
var post model.Post
if err := s.db.First(&post, postID).Error; err != nil {
return nil, ErrPostNotFound
}
// 权限校验:作者本人或板块审核权
if post.UserID != userID && !actor.CanModerateBoard(post.BoardID) {
return nil, ErrPostForbidden
}
updates := map[string]interface{}{}
if title != "" {
t := strings.TrimSpace(title)
if t == "" {
return nil, errors.New("标题不能为空")
}
updates["title"] = t
}
if content != "" {
c := strings.TrimSpace(content)
if c == "" {
return nil, errors.New("内容不能为空")
}
updates["content"] = c
}
updates["tags"] = tags
if err := s.db.Model(&post).Updates(updates).Error; err != nil {
return nil, err
}
s.db.Preload("Board").Preload("User").First(&post, post.ID)
return &post, nil
}
// Delete 删除帖子(作者本人,或对该板块有审核权的管理成员)
func (s *PostService) Delete(actor *Actor, postID, userID uint) error {
var post model.Post
if err := s.db.First(&post, postID).Error; err != nil {
return ErrPostNotFound
}
// 权限校验:作者本人或板块审核权
if post.UserID != userID && !actor.CanModerateBoard(post.BoardID) {
return ErrPostForbidden
}
// 软删除(gorm DeletedAt)
if err := s.db.Delete(&post).Error; err != nil {
return err
}