freefire
0c2b0d2d6a
后端 Go+Gin：认证/CSRF/限流、板块、帖子、评论、点赞、通知、用户资料、置顶推荐；前端 Next.js 16：发帖/编辑/删除、搜索、分页、点赞、通知中心、设置；基础设施 docker-compose 与配置模板；添加 .gitignore 与专有许可证（保留所有权利）
83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
package service
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import (
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"github.com/freefire/jiang13-bbs/model"
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"gorm.io/gorm"
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)
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// NotificationService 通知服务
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type NotificationService struct {
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db *gorm.DB
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}
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func NewNotificationService(db *gorm.DB) *NotificationService {
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return &NotificationService{db: db}
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}
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// Create 创建通知（actorID == userID 时跳过，不通知自己）
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func (s *NotificationService) Create(userID, actorID uint, notifType string, postID, commentID uint, content string) {
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if userID == 0 || actorID == 0 || userID == actorID {
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return
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}
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// 截断内容预览
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if len(content) > 200 {
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content = content[:200]
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}
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n := &model.Notification{
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UserID: userID,
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ActorID: actorID,
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Type: notifType,
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PostID: postID,
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CommentID: commentID,
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Content: content,
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IsRead: false,
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}
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// 通知创建失败不影响主流程，忽略错误
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_ = s.db.Create(n).Error
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}
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// List 获取用户通知列表（分页，按时间倒序）
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func (s *NotificationService) List(userID uint, page, size int) ([]model.Notification, int64, error) {
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if page < 1 {
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page = 1
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}
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if size < 1 || size > 50 {
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size = 20
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}
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query := s.db.Model(&model.Notification{}).Where("user_id = ?", userID)
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var total int64
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if err := query.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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var list []model.Notification
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offset := (page - 1) * size
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if err := query.Order("created_at DESC").Offset(offset).Limit(size).
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Preload("Actor").Preload("Post").Find(&list).Error; err != nil {
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return nil, 0, err
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}
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return list, total, nil
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}
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// UnreadCount 获取未读通知数
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func (s *NotificationService) UnreadCount(userID uint) (int64, error) {
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var total int64
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err := s.db.Model(&model.Notification{}).Where("user_id = ? AND is_read = ?", userID, false).Count(&total).Error
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return total, err
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}
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// MarkRead 标记单条通知为已读（校验归属）
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func (s *NotificationService) MarkRead(id, userID uint) error {
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result := s.db.Model(&model.Notification{}).
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Where("id = ? AND user_id = ?", id, userID).
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Update("is_read", true)
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return result.Error
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}
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// MarkAllRead 标记用户所有通知为已读
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func (s *NotificationService) MarkAllRead(userID uint) error {
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result := s.db.Model(&model.Notification{}).
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Where("user_id = ? AND is_read = ?", userID, false).
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Update("is_read", true)
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return result.Error
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}
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