feat(channel): integrate channel functionality into post management

- Added Channel support in Post model, including ChannelID field in PostRequest and PostResponse DTOs. - Updated PostService and PostRepository to handle channel-specific logic for creating and listing posts. - Introduced ChannelRepository and ChannelService, along with corresponding handlers for managing channels. - Enhanced router to include routes for channel management and public channel listing. - Seeded default channels in the database during initialization.
2026-03-24 22:27:53 +08:00
parent 15f0f1605e
commit fc0d6ff19d
19 changed files with 416 additions and 42 deletions
--- a/internal/service/admin_post_service.go
+++ b/internal/service/admin_post_service.go
@@ -322,7 +322,7 @@ func convertPostToAdminDetailResponse(post *model.Post) *dto.AdminPostDetailResp
 	return &dto.AdminPostDetailResponse{
 		ID:              post.ID,
 		UserID:          post.UserID,
-		CommunityID:     post.CommunityID,
+		ChannelID:       post.ChannelID,
 		Title:           post.Title,
 		Content:         post.Content,
 		Images:          images,
--- a/internal/service/channel_service.go
+++ b/internal/service/channel_service.go
@@ -0,0 +1,65 @@
+package service
+
+import (
+	"carrot_bbs/internal/model"
+	"carrot_bbs/internal/repository"
+)
+
+type ChannelService interface {
+	ListActive() ([]*model.Channel, error)
+	ListAll() ([]*model.Channel, error)
+	Create(name, slug, description string, sortOrder int, isActive bool) (*model.Channel, error)
+	Update(id, name, slug, description string, sortOrder int, isActive bool) (*model.Channel, error)
+	Delete(id string) error
+}
+
+type channelServiceImpl struct {
+	channelRepo *repository.ChannelRepository
+}
+
+func NewChannelService(channelRepo *repository.ChannelRepository) ChannelService {
+	return &channelServiceImpl{channelRepo: channelRepo}
+}
+
+func (s *channelServiceImpl) ListActive() ([]*model.Channel, error) {
+	return s.channelRepo.ListActive()
+}
+
+func (s *channelServiceImpl) ListAll() ([]*model.Channel, error) {
+	return s.channelRepo.ListAll()
+}
+
+func (s *channelServiceImpl) Create(name, slug, description string, sortOrder int, isActive bool) (*model.Channel, error) {
+	channel := &model.Channel{
+		Name:        name,
+		Slug:        slug,
+		Description: description,
+		SortOrder:   sortOrder,
+		IsActive:    isActive,
+	}
+	if err := s.channelRepo.Create(channel); err != nil {
+		return nil, err
+	}
+	return channel, nil
+}
+
+func (s *channelServiceImpl) Update(id, name, slug, description string, sortOrder int, isActive bool) (*model.Channel, error) {
+	channel, err := s.channelRepo.GetByID(id)
+	if err != nil {
+		return nil, err
+	}
+	channel.Name = name
+	channel.Slug = slug
+	channel.Description = description
+	channel.SortOrder = sortOrder
+	channel.IsActive = isActive
+	if err := s.channelRepo.Update(channel); err != nil {
+		return nil, err
+	}
+	return channel, nil
+}
+
+func (s *channelServiceImpl) Delete(id string) error {
+	return s.channelRepo.Delete(id)
+}
+
--- a/internal/service/post_service.go
+++ b/internal/service/post_service.go
@@ -25,22 +25,22 @@ const (
 // PostService 帖子服务接口
 type PostService interface {
 	// 帖子CRUD
-	Create(ctx context.Context, userID, title, content string, images []string) (*model.Post, error)
+	Create(ctx context.Context, userID, title, content string, images []string, channelID *string) (*model.Post, error)
 	GetByID(ctx context.Context, id string) (*model.Post, error)
 	Update(ctx context.Context, post *model.Post) error
 	UpdateWithImages(ctx context.Context, post *model.Post, images *[]string) error
 	Delete(ctx context.Context, id string) error

 	// 帖子列表
-	List(ctx context.Context, page, pageSize int, userID string, includePending bool) ([]*model.Post, int64, error)
-	GetLatestPosts(ctx context.Context, page, pageSize int, userID string) ([]*model.Post, int64, error)
-	GetLatestPostsForOwner(ctx context.Context, page, pageSize int, userID string) ([]*model.Post, int64, error)
+	List(ctx context.Context, page, pageSize int, userID string, includePending bool, channelID *string) ([]*model.Post, int64, error)
+	GetLatestPosts(ctx context.Context, page, pageSize int, userID string, channelID *string) ([]*model.Post, int64, error)
+	GetLatestPostsForOwner(ctx context.Context, page, pageSize int, userID string, channelID *string) ([]*model.Post, int64, error)
 	GetUserPosts(ctx context.Context, userID string, page, pageSize int, includePending bool) ([]*model.Post, int64, error)
 	GetFavorites(ctx context.Context, userID string, page, pageSize int) ([]*model.Post, int64, error)
 	Search(ctx context.Context, keyword string, page, pageSize int) ([]*model.Post, int64, error)

 	// 游标分页方法
-	ListByCursor(ctx context.Context, userID string, includePending bool, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error)
+	ListByCursor(ctx context.Context, userID string, includePending bool, channelID *string, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error)
 	SearchByCursor(ctx context.Context, keyword string, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error)
 	GetUserPostsByCursor(ctx context.Context, userID string, includePending bool, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error)
 	GetFollowingPostsByCursor(ctx context.Context, userID string, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error)
@@ -106,12 +106,13 @@ type PostListResult struct {
 }

 // Create 创建帖子
-func (s *postServiceImpl) Create(ctx context.Context, userID, title, content string, images []string) (*model.Post, error) {
+func (s *postServiceImpl) Create(ctx context.Context, userID, title, content string, images []string, channelID *string) (*model.Post, error) {
 	post := &model.Post{
-		UserID:  userID,
-		Title:   title,
-		Content: content,
-		Status:  model.PostStatusPending,
+		UserID:    userID,
+		ChannelID: channelID,
+		Title:       title,
+		Content:     content,
+		Status:      model.PostStatusPending,
 	}

 	err := s.postRepo.Create(post, images)
@@ -288,7 +289,7 @@ func (s *postServiceImpl) Delete(ctx context.Context, id string) error {
 }

 // List 获取帖子列表（带缓存）
-func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID string, includePending bool) ([]*model.Post, int64, error) {
+func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID string, includePending bool, channelID *string) ([]*model.Post, int64, error) {
 	cacheSettings := cache.GetSettings()
 	postListTTL := cacheSettings.PostListTTL
 	if postListTTL <= 0 {
@@ -308,6 +309,9 @@ func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID s
 	if includePending && userID != "" {
 		visibilityUserKey = "owner:" + userID
 	}
+	if channelID != nil && *channelID != "" {
+		visibilityUserKey += ":channel:" + *channelID
+	}
 	cacheKey := cache.PostListKey("latest", visibilityUserKey, page, pageSize)

 	result, err := cache.GetOrLoadTyped(
@@ -317,7 +321,7 @@ func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID s
 		jitter,
 		nullTTL,
 		func() (*PostListResult, error) {
-			posts, total, err := s.postRepo.List(page, pageSize, userID, includePending)
+			posts, total, err := s.postRepo.List(page, pageSize, userID, includePending, channelID)
 			if err != nil {
 				return nil, err
 			}
@@ -341,7 +345,7 @@ func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID s
 		}
 	}
 	if missingAuthor {
-		posts, total, loadErr := s.postRepo.List(page, pageSize, userID, includePending)
+		posts, total, loadErr := s.postRepo.List(page, pageSize, userID, includePending, channelID)
 		if loadErr != nil {
 			return nil, 0, loadErr
 		}
@@ -353,13 +357,13 @@ func (s *postServiceImpl) List(ctx context.Context, page, pageSize int, userID s
 }

 // GetLatestPosts 获取最新帖子（语义化别名）
-func (s *postServiceImpl) GetLatestPosts(ctx context.Context, page, pageSize int, userID string) ([]*model.Post, int64, error) {
-	return s.List(ctx, page, pageSize, userID, false)
+func (s *postServiceImpl) GetLatestPosts(ctx context.Context, page, pageSize int, userID string, channelID *string) ([]*model.Post, int64, error) {
+	return s.List(ctx, page, pageSize, userID, false, channelID)
 }

 // GetLatestPostsForOwner 获取作者视角帖子列表（包含待审核）
-func (s *postServiceImpl) GetLatestPostsForOwner(ctx context.Context, page, pageSize int, userID string) ([]*model.Post, int64, error) {
-	return s.List(ctx, page, pageSize, userID, true)
+func (s *postServiceImpl) GetLatestPostsForOwner(ctx context.Context, page, pageSize int, userID string, channelID *string) ([]*model.Post, int64, error) {
+	return s.List(ctx, page, pageSize, userID, true, channelID)
 }

 // GetUserPosts 获取用户帖子
@@ -647,11 +651,11 @@ func (s *postServiceImpl) DeletePostWithTransaction(ctx context.Context, postID
 // ========== 游标分页方法 ==========

 // ListByCursor 游标分页获取帖子列表
-func (s *postServiceImpl) ListByCursor(ctx context.Context, userID string, includePending bool, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error) {
+func (s *postServiceImpl) ListByCursor(ctx context.Context, userID string, includePending bool, channelID *string, req *cursor.PageRequest) (*cursor.CursorPageResult[*model.Post], error) {
 	// 规范化请求参数
 	req.Normalize()

-	return s.postRepo.GetPostsByCursor(ctx, userID, includePending, req)
+	return s.postRepo.GetPostsByCursor(ctx, userID, includePending, channelID, req)
 }

 // SearchByCursor 游标分页搜索帖子
--- a/internal/service/vote_service.go
+++ b/internal/service/vote_service.go
@@ -52,12 +52,12 @@ func (s *VoteService) CreateVotePost(ctx context.Context, userID string, req *dt

 	// 创建普通帖子（设置IsVote=true）
 	post := &model.Post{
-		UserID:      userID,
-		CommunityID: req.CommunityID,
-		Title:       req.Title,
-		Content:     req.Content,
-		Status:      model.PostStatusPending,
-		IsVote:      true,
+		UserID:    userID,
+		ChannelID: req.ChannelID,
+		Title:     req.Title,
+		Content:   req.Content,
+		Status:    model.PostStatusPending,
+		IsVote:    true,
 	}

 	err := s.postRepo.Create(post, req.Images)