feat(phase2c): 群聊与已读回执功能完整实现
Phase 2c 全部 14 个 Task 完成,包含: 后端(Go): - MinIO 文件存储服务集成(Docker + Go SDK + 通用上传 API) - Group 模块完整实现(DAO + Service + Controller + Router + Wire) - 18 个群管理 REST API + 11 个 WS 群事件推送 - 群创建/解散/邀请/踢人/退出/转让群主/设管理员/禁言/全体禁言/群公告/群昵称/免打扰/搜索 - IM Service 扩展(群消息发送/撤回 + @提醒 + 管理员无时限撤回) - 已读回执后端(单聊会话级 last_read_msg_id + 群聊消息级 im_message_reads) - 管理端群组管理(列表/详情/解散) - 数据库迁移(3 张新表 + 2 张表字段扩展) 前端(uni-app): - 群聊 Store + API 封装 + 11 个 WS 事件监听 - 已读回执 UI(单聊已读/未读标记 + 群聊 X人已读 + 已读详情页) - 7 个群聊页面(对话/创建/设置/成员/邀请/审批/搜索) - 会话列表改造(全部/单聊/群聊 Tab + @标记 + 免打扰标识) 管理端(Vue 3 + Element Plus): - 群组列表页(搜索/分页/详情弹窗/解散群聊) - 侧边栏群组管理入口 文档同步:进度/架构/设计/API/规范文档全部更新 Made-with: Cursor
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129
backend/go-service/app/group/dao/message_read_dao.go
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129
backend/go-service/app/group/dao/message_read_dao.go
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package dao
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import (
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"context"
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"github.com/echochat/backend/app/group/model"
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"github.com/echochat/backend/pkg/logs"
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"go.uber.org/zap"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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)
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// MessageReadDAO 消息已读记录数据访问对象
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type MessageReadDAO struct {
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db *gorm.DB
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}
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// NewMessageReadDAO 创建 MessageReadDAO 实例
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func NewMessageReadDAO(db *gorm.DB) *MessageReadDAO {
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return &MessageReadDAO{db: db}
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}
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// BatchCreate 批量创建已读记录(忽略重复冲突)
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func (d *MessageReadDAO) BatchCreate(ctx context.Context, reads []model.MessageRead) error {
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funcName := "dao.message_read_dao.BatchCreate"
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logs.Info(ctx, funcName, "批量创建已读记录", zap.Int("count", len(reads)))
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if len(reads) == 0 {
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return nil
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}
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return d.db.WithContext(ctx).
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Clauses(clause.OnConflict{DoNothing: true}).
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Create(&reads).Error
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}
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// GetReadCount 获取消息的已读人数
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func (d *MessageReadDAO) GetReadCount(ctx context.Context, messageID int64) (int64, error) {
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var count int64
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err := d.db.WithContext(ctx).
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Model(&model.MessageRead{}).
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Where("message_id = ?", messageID).
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Count(&count).Error
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return count, err
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}
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// GetReadCountBatch 批量获取多条消息的已读人数
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func (d *MessageReadDAO) GetReadCountBatch(ctx context.Context, messageIDs []int64) (map[int64]int, error) {
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funcName := "dao.message_read_dao.GetReadCountBatch"
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logs.Debug(ctx, funcName, "批量获取已读计数", zap.Int("count", len(messageIDs)))
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type result struct {
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MessageID int64 `gorm:"column:message_id"`
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ReadCount int `gorm:"column:read_count"`
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}
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var results []result
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err := d.db.WithContext(ctx).
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Model(&model.MessageRead{}).
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Select("message_id, COUNT(*) as read_count").
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Where("message_id IN ?", messageIDs).
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Group("message_id").
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Scan(&results).Error
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if err != nil {
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return nil, err
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}
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m := make(map[int64]int, len(results))
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for _, r := range results {
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m[r.MessageID] = r.ReadCount
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}
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return m, nil
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}
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// GetReadUsers 获取消息的已读用户列表
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func (d *MessageReadDAO) GetReadUsers(ctx context.Context, messageID int64) ([]model.MessageRead, error) {
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funcName := "dao.message_read_dao.GetReadUsers"
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logs.Debug(ctx, funcName, "获取已读用户列表", zap.Int64("message_id", messageID))
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var reads []model.MessageRead
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err := d.db.WithContext(ctx).
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Where("message_id = ?", messageID).
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Order("read_at ASC").
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Find(&reads).Error
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return reads, err
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}
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// BatchCreateReads 批量标记消息已读(满足 im/service.MessageReadRecorder 接口)
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func (d *MessageReadDAO) BatchCreateReads(ctx context.Context, messageIDs []int64, userID int64) error {
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funcName := "dao.message_read_dao.BatchCreateReads"
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logs.Info(ctx, funcName, "批量标记已读",
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zap.Int64("user_id", userID), zap.Int("count", len(messageIDs)))
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if len(messageIDs) == 0 {
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return nil
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}
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reads := make([]model.MessageRead, 0, len(messageIDs))
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for _, msgID := range messageIDs {
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reads = append(reads, model.MessageRead{
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MessageID: msgID,
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UserID: userID,
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})
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}
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return d.BatchCreate(ctx, reads)
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}
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// GetReadUserIDs 获取消息的已读用户 ID 列表(满足 im/service.MessageReadRecorder 接口)
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func (d *MessageReadDAO) GetReadUserIDs(ctx context.Context, messageID int64) ([]int64, error) {
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funcName := "dao.message_read_dao.GetReadUserIDs"
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logs.Debug(ctx, funcName, "获取已读用户 ID 列表", zap.Int64("message_id", messageID))
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var ids []int64
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err := d.db.WithContext(ctx).
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Model(&model.MessageRead{}).
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Where("message_id = ?", messageID).
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Pluck("user_id", &ids).Error
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return ids, err
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}
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// HasRead 检查用户是否已读某消息
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func (d *MessageReadDAO) HasRead(ctx context.Context, messageID, userID int64) (bool, error) {
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var count int64
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err := d.db.WithContext(ctx).
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Model(&model.MessageRead{}).
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Where("message_id = ? AND user_id = ?", messageID, userID).
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Count(&count).Error
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return count > 0, err
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}
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