feat: 添加每日签到功能，新增帖子排序与社区面板优化
本次提交完成了多个核心功能迭代： 1. 新增用户每日签到系统，包含签到状态查询、连续天数统计、积分累计逻辑 2. 新增"新帖子"排序选项，替换原有的latest排序为新评论排序 3. 重构首页信息流布局，优化移动端与桌面端展示样式 4. 新增最新评论、最新注册用户模块，完善社区面板数据展示 5. 新增静态友情链接配置模块 6. 提取通用时间格式化工具函数，统一全站相对时间展示 7. 补充数据库签到模型与后端API接口，完善前后端交互链路
This commit is contained in:
136
backend/service/checkin.go
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136
backend/service/checkin.go
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@@ -0,0 +1,136 @@
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package service
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import (
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"errors"
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"time"
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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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// DailyCheckinPoints 每日签到固定积分
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const DailyCheckinPoints = 5
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// maxStreakScan 连续天数最多向前回溯的天数
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const maxStreakScan = 400
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// ErrAlreadyCheckedIn 今日已签到
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var ErrAlreadyCheckedIn = errors.New("今日已签到")
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// CheckinStatus 签到状态（首页右栏与签到接口共用）
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type CheckinStatus struct {
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CheckedToday bool `json:"checked_today"`
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Streak int `json:"streak"` // 连续签到天数
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TotalPoints int `json:"total_points"` // 累计积分（签到所得）
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TodayPoints int `json:"today_points"` // 今日签到可得积分
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}
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// CheckinService 每日签到
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type CheckinService struct {
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db *gorm.DB
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}
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func NewCheckinService(db *gorm.DB) *CheckinService {
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return &CheckinService{db: db}
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}
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// localDay 取本地时区零点日期
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func localDay(t time.Time) time.Time {
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y, m, d := t.Date()
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return time.Date(y, m, d, 0, 0, 0, 0, t.Location())
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}
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// streakFrom 从 anchor（含）起按日倒推连续签到天数
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func streakFrom(dates map[string]bool, anchor time.Time) int {
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streak := 0
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for i := 0; i < maxStreakScan; i++ {
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day := anchor.AddDate(0, 0, -i)
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if !dates[day.Format("2006-01-02")] {
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break
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}
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streak++
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}
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return streak
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}
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// Status 查询用户签到状态
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func (s *CheckinService) Status(userID uint) (*CheckinStatus, error) {
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today := localDay(time.Now())
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var todayRow model.Checkin
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err := s.db.Where("user_id = ? AND checkin_date::date = ?::date", userID, today).
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First(&todayRow).Error
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checkedToday := true
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if err != nil {
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if !errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, err
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}
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checkedToday = false
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}
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// 连续天数：今日已签从今天起算，未签从昨天起算（今日尚未签不打断连续）
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anchor := today
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if !checkedToday {
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anchor = today.AddDate(0, 0, -1)
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}
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var dates []time.Time
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if err := s.db.Model(&model.Checkin{}).
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Where("user_id = ? AND checkin_date >= ?", userID, anchor.AddDate(0, 0, -maxStreakScan)).
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Pluck("checkin_date", &dates).Error; err != nil {
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return nil, err
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}
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dateSet := make(map[string]bool, len(dates))
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for _, d := range dates {
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dateSet[localDay(d).Format("2006-01-02")] = true
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}
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var total int64
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if err := s.db.Model(&model.Checkin{}).
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Where("user_id = ?", userID).
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Select("COALESCE(SUM(points), 0)").Scan(&total).Error; err != nil {
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return nil, err
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}
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return &CheckinStatus{
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CheckedToday: checkedToday,
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Streak: streakFrom(dateSet, anchor),
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TotalPoints: int(total),
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TodayPoints: DailyCheckinPoints,
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}, nil
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}
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// CheckIn 执行今日签到（每日一条，唯一索引兜底并发）
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func (s *CheckinService) CheckIn(userID uint) (*CheckinStatus, error) {
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today := localDay(time.Now())
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var status *CheckinStatus
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err := s.db.Transaction(func(tx *gorm.DB) error {
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var count int64
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if err := tx.Model(&model.Checkin{}).
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Where("user_id = ? AND checkin_date::date = ?::date", userID, today).
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Count(&count).Error; err != nil {
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return err
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}
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if count > 0 {
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return ErrAlreadyCheckedIn
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}
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row := model.Checkin{
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UserID: userID,
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CheckinDate: today,
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Points: DailyCheckinPoints,
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}
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if err := tx.Create(&row).Error; err != nil {
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return err
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}
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return nil
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})
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if err != nil {
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return nil, err
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}
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status, err = s.Status(userID)
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if err != nil {
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return nil, err
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}
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return status, nil
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}
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@@ -1,6 +1,7 @@
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package service
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import (
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"strings"
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"time"
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"github.com/freefire/jiang13-bbs/model"
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@@ -39,12 +40,51 @@ type BoardCount struct {
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PostCount int64 `json:"post_count"`
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}
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// LatestCommentItem 首页"最新评论"条目（纯文本摘要 + 所属帖子）
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type LatestCommentItem struct {
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ID uint `json:"id"`
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Content string `json:"content"`
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CreatedAt time.Time `json:"created_at"`
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User struct {
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ID uint `json:"id"`
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Username string `json:"username"`
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Nickname string `json:"nickname"`
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Avatar string `json:"avatar"`
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} `json:"user"`
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Post struct {
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ID uint `json:"id"`
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Title string `json:"title"`
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} `json:"post"`
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}
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// NewUserItem 最新注册成员
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type NewUserItem struct {
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ID uint `json:"id"`
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Username string `json:"username"`
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Nickname string `json:"nickname"`
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Avatar string `json:"avatar"`
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CreatedAt time.Time `json:"created_at"`
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}
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// OverviewData 首页聚合数据
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type OverviewData struct {
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Stats OverviewStats `json:"stats"`
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Hot []PostListItem `json:"hot"`
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ActiveUsers []ActiveUser `json:"active_users"`
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Boards []BoardCount `json:"boards"`
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Stats OverviewStats `json:"stats"`
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Hot []PostListItem `json:"hot"`
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ActiveUsers []ActiveUser `json:"active_users"`
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Boards []BoardCount `json:"boards"`
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LatestComments []LatestCommentItem `json:"latest_comments"`
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NewUsers []NewUserItem `json:"new_users"`
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Checkin *CheckinStatus `json:"checkin,omitempty"`
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}
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// truncateText 折叠空白并按 rune 截断（评论为纯文本，无 HTML 注入面）
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func truncateText(s string, n int) string {
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s = strings.Join(strings.Fields(s), " ")
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r := []rune(s)
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if len(r) > n {
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return string(r[:n]) + "…"
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}
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return s
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}
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const activeUserWindow = 14 * 24 * time.Hour
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@@ -52,9 +92,11 @@ const activeUserWindow = 14 * 24 * time.Hour
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// Get 聚合首页数据。hot 的 liked 态由 handler 层按当前用户填充。
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func (s *OverviewService) Get() (*OverviewData, error) {
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data := &OverviewData{
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Hot: []PostListItem{},
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ActiveUsers: []ActiveUser{},
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Boards: []BoardCount{},
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Hot: []PostListItem{},
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ActiveUsers: []ActiveUser{},
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Boards: []BoardCount{},
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LatestComments: []LatestCommentItem{},
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NewUsers: []NewUserItem{},
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}
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now := time.Now()
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@@ -163,5 +205,65 @@ LIMIT 5`
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data.Boards = append(data.Boards, BoardCount{Board: b, PostCount: countMap[b.ID]})
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}
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// 最新评论：JOIN 未封禁用户与已发布帖，一条 SQL 取齐
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type latestCommentRow struct {
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ID uint
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Content string
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CreatedAt time.Time
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UID uint
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Username string
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Nickname string
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Avatar string
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PID uint
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Title string
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}
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var commentRows []latestCommentRow
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commentSQL := `
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SELECT c.id, c.content, c.created_at,
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u.id AS uid, u.username AS username, u.nickname AS nickname, u.avatar AS avatar,
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p.id AS pid, p.title AS title
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FROM comments c
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JOIN users u ON u.id = c.user_id AND u.banned = ? AND u.deleted_at IS NULL
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JOIN posts p ON p.id = c.post_id AND p.status = ? AND p.deleted_at IS NULL
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WHERE c.status = ? AND c.deleted_at IS NULL
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ORDER BY c.created_at DESC
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LIMIT 6`
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if err := s.db.Raw(commentSQL,
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false, model.ContentStatusPublished, model.ContentStatusPublished).
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Scan(&commentRows).Error; err != nil {
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return nil, err
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}
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for _, r := range commentRows {
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item := LatestCommentItem{
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ID: r.ID,
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Content: truncateText(r.Content, 60),
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CreatedAt: r.CreatedAt,
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}
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item.User.ID = r.UID
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item.User.Username = r.Username
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item.User.Nickname = r.Nickname
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item.User.Avatar = r.Avatar
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item.Post.ID = r.PID
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item.Post.Title = r.Title
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data.LatestComments = append(data.LatestComments, item)
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}
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// 最新注册成员
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var newUsers []model.User
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if err := s.db.Select("id, username, nickname, avatar, created_at").
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Where("banned = ?", false).
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Order("created_at DESC").Limit(8).Find(&newUsers).Error; err != nil {
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return nil, err
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}
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for _, u := range newUsers {
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data.NewUsers = append(data.NewUsers, NewUserItem{
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ID: u.ID,
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Username: u.Username,
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Nickname: u.Nickname,
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Avatar: u.Avatar,
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CreatedAt: u.CreatedAt,
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})
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}
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return data, nil
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}
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@@ -176,6 +176,10 @@ func (s *PostService) List(q PostListQuery) ([]PostListItem, int64, error) {
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if q.Sort == "hot" {
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order = "pinned DESC, (like_count + comment_count * 2) DESC, created_at DESC"
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}
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// new：纯按发帖时间（新帖子）
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if q.Sort == "new" {
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order = "pinned DESC, created_at DESC"
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}
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if err := query.Order(order).Offset(offset).Limit(q.Size).
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Preload("Board").Preload("User").Find(&posts).Error; err != nil {
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return nil, 0, err
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