d4ab5af34e
- model/friendship.go: 好友关系模型（双向存储，4 种状态） - model/friend_group.go: 好友分组模型 - constants/contact.go: 好友关系状态常量 - dto/contact_dto.go: 联系人请求/响应 DTO - dao/friendship_dao.go: 好友关系 CRUD + 搜索 + 共同好友 - dao/friend_group_dao.go: 好友分组 CRUD + 移动好友 Made-with: Cursor
347 lines
12 KiB
Go
347 lines
12 KiB
Go
// Package dao 提供 contact 模块的数据库访问操作
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package dao
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import (
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"context"
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"time"
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authModel "github.com/echochat/backend/app/auth/model"
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"github.com/echochat/backend/app/constants"
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"github.com/echochat/backend/app/contact/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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)
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// FriendshipDAO 好友关系数据访问对象
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type FriendshipDAO struct {
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db *gorm.DB
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}
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// NewFriendshipDAO 创建 FriendshipDAO 实例
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func NewFriendshipDAO(db *gorm.DB) *FriendshipDAO {
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return &FriendshipDAO{db: db}
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}
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// CreateRequest 创建好友申请（单向 A→B，status=0）
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func (d *FriendshipDAO) CreateRequest(ctx context.Context, userID, friendID int64, message string) (*model.Friendship, error) {
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funcName := "dao.friendship_dao.CreateRequest"
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logs.Info(ctx, funcName, "创建好友申请",
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zap.Int64("user_id", userID), zap.Int64("friend_id", friendID))
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f := &model.Friendship{
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UserID: userID,
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FriendID: friendID,
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Status: constants.FriendshipStatusPending,
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Message: message,
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}
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err := d.db.WithContext(ctx).Create(f).Error
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if err != nil {
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logs.Error(ctx, funcName, "创建好友申请失败", zap.Error(err))
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}
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return f, err
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}
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// AcceptRequest 接受好友申请（事务内：更新 A→B 为 accepted + 创建 B→A）
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func (d *FriendshipDAO) AcceptRequest(ctx context.Context, requestID, userID int64) error {
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funcName := "dao.friendship_dao.AcceptRequest"
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logs.Info(ctx, funcName, "接受好友申请",
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zap.Int64("request_id", requestID), zap.Int64("user_id", userID))
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return d.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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var req model.Friendship
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if err := tx.First(&req, requestID).Error; err != nil {
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return err
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}
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if req.FriendID != userID {
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return gorm.ErrRecordNotFound
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}
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now := time.Now()
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if err := tx.Model(&req).Updates(map[string]interface{}{
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"status": constants.FriendshipStatusAccepted,
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"updated_at": now,
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}).Error; err != nil {
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return err
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}
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reverse := &model.Friendship{
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UserID: userID,
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FriendID: req.UserID,
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Status: constants.FriendshipStatusAccepted,
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}
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return tx.Create(reverse).Error
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})
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}
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// RejectRequest 拒绝好友申请
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func (d *FriendshipDAO) RejectRequest(ctx context.Context, requestID, userID int64) error {
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funcName := "dao.friendship_dao.RejectRequest"
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logs.Info(ctx, funcName, "拒绝好友申请",
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zap.Int64("request_id", requestID), zap.Int64("user_id", userID))
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result := d.db.WithContext(ctx).
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Model(&model.Friendship{}).
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Where("id = ? AND friend_id = ? AND status = ?", requestID, userID, constants.FriendshipStatusPending).
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Update("status", constants.FriendshipStatusRejected)
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if result.Error != nil {
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return result.Error
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}
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if result.RowsAffected == 0 {
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return gorm.ErrRecordNotFound
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}
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return nil
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}
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// GetFriendList 获取好友列表（status=1 的记录，JOIN 用户表获取详情）
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func (d *FriendshipDAO) GetFriendList(ctx context.Context, userID int64, groupID *int64) ([]FriendWithUser, error) {
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funcName := "dao.friendship_dao.GetFriendList"
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logs.Debug(ctx, funcName, "查询好友列表", zap.Int64("user_id", userID))
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var results []FriendWithUser
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query := d.db.WithContext(ctx).
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Table("contact_friendships f").
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Select("f.id, f.friend_id as user_id, u.username, u.nickname, u.avatar, f.remark, f.group_id, f.created_at").
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Joins("JOIN auth_users u ON u.id = f.friend_id").
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Where("f.user_id = ? AND f.status = ?", userID, constants.FriendshipStatusAccepted)
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if groupID != nil {
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query = query.Where("f.group_id = ?", *groupID)
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}
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err := query.Order("u.nickname ASC").Scan(&results).Error
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if err != nil {
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logs.Error(ctx, funcName, "查询好友列表失败", zap.Error(err))
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}
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return results, err
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}
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// FriendWithUser 好友列表查询结果（JOIN 用户表）
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type FriendWithUser struct {
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ID int64 `json:"id"`
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UserID int64 `json:"user_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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Remark string `json:"remark"`
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GroupID *int64 `json:"group_id"`
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CreatedAt time.Time `json:"created_at"`
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}
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// GetPendingRequests 获取收到的待处理好友申请
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func (d *FriendshipDAO) GetPendingRequests(ctx context.Context, userID int64) ([]RequestWithUser, error) {
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funcName := "dao.friendship_dao.GetPendingRequests"
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logs.Debug(ctx, funcName, "查询待处理申请", zap.Int64("user_id", userID))
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var results []RequestWithUser
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err := d.db.WithContext(ctx).
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Table("contact_friendships f").
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Select("f.id, f.user_id, u.username, u.nickname, u.avatar, f.message, f.status, f.created_at").
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Joins("JOIN auth_users u ON u.id = f.user_id").
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Where("f.friend_id = ? AND f.status = ?", userID, constants.FriendshipStatusPending).
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Order("f.created_at DESC").
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Scan(&results).Error
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if err != nil {
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logs.Error(ctx, funcName, "查询待处理申请失败", zap.Error(err))
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}
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return results, err
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}
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// RequestWithUser 好友申请查询结果（JOIN 申请方用户表）
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type RequestWithUser struct {
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ID int64 `json:"id"`
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UserID int64 `json:"user_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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Message string `json:"message"`
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Status int `json:"status"`
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CreatedAt time.Time `json:"created_at"`
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}
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// DeleteFriend 删除好友（事务内双向删除）
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func (d *FriendshipDAO) DeleteFriend(ctx context.Context, userID, friendID int64) error {
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funcName := "dao.friendship_dao.DeleteFriend"
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logs.Info(ctx, funcName, "删除好友",
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zap.Int64("user_id", userID), zap.Int64("friend_id", friendID))
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return d.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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if err := tx.Where("user_id = ? AND friend_id = ?", userID, friendID).
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Delete(&model.Friendship{}).Error; err != nil {
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return err
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}
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return tx.Where("user_id = ? AND friend_id = ?", friendID, userID).
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Delete(&model.Friendship{}).Error
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})
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}
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// UpdateRemark 设置好友备注
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func (d *FriendshipDAO) UpdateRemark(ctx context.Context, userID, friendID int64, remark string) error {
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funcName := "dao.friendship_dao.UpdateRemark"
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logs.Info(ctx, funcName, "更新好友备注",
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zap.Int64("user_id", userID), zap.Int64("friend_id", friendID))
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return d.db.WithContext(ctx).
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Model(&model.Friendship{}).
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Where("user_id = ? AND friend_id = ? AND status = ?", userID, friendID, constants.FriendshipStatusAccepted).
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Update("remark", remark).Error
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}
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// BlockUser 拉黑用户（事务内：删除双向好友 + 创建单向拉黑记录）
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func (d *FriendshipDAO) BlockUser(ctx context.Context, userID, targetID int64) error {
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funcName := "dao.friendship_dao.BlockUser"
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logs.Info(ctx, funcName, "拉黑用户",
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zap.Int64("user_id", userID), zap.Int64("target_id", targetID))
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return d.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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tx.Where("(user_id = ? AND friend_id = ?) OR (user_id = ? AND friend_id = ?)",
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userID, targetID, targetID, userID).
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Delete(&model.Friendship{})
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block := &model.Friendship{
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UserID: userID,
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FriendID: targetID,
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Status: constants.FriendshipStatusBlocked,
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}
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return tx.Create(block).Error
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})
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}
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// UnblockUser 取消拉黑
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func (d *FriendshipDAO) UnblockUser(ctx context.Context, userID, targetID int64) error {
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funcName := "dao.friendship_dao.UnblockUser"
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logs.Info(ctx, funcName, "取消拉黑",
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zap.Int64("user_id", userID), zap.Int64("target_id", targetID))
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return d.db.WithContext(ctx).
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Where("user_id = ? AND friend_id = ? AND status = ?", userID, targetID, constants.FriendshipStatusBlocked).
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Delete(&model.Friendship{}).Error
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}
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// GetBlockList 获取黑名单列表
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func (d *FriendshipDAO) GetBlockList(ctx context.Context, userID int64) ([]FriendWithUser, error) {
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funcName := "dao.friendship_dao.GetBlockList"
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logs.Debug(ctx, funcName, "查询黑名单", zap.Int64("user_id", userID))
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var results []FriendWithUser
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err := d.db.WithContext(ctx).
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Table("contact_friendships f").
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Select("f.id, f.friend_id as user_id, u.username, u.nickname, u.avatar, f.remark, f.group_id, f.created_at").
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Joins("JOIN auth_users u ON u.id = f.friend_id").
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Where("f.user_id = ? AND f.status = ?", userID, constants.FriendshipStatusBlocked).
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Scan(&results).Error
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return results, err
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}
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// IsBlocked 检查 userID 是否被 targetID 拉黑
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func (d *FriendshipDAO) IsBlocked(ctx context.Context, userID, targetID 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.Friendship{}).
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Where("user_id = ? AND friend_id = ? AND status = ?", targetID, userID, constants.FriendshipStatusBlocked).
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Count(&count).Error
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return count > 0, err
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}
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// IsFriend 检查是否互为好友
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func (d *FriendshipDAO) IsFriend(ctx context.Context, userID, friendID 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.Friendship{}).
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Where("user_id = ? AND friend_id = ? AND status = ?", userID, friendID, constants.FriendshipStatusAccepted).
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Count(&count).Error
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return count > 0, err
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}
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// HasPendingRequest 检查是否已有待处理的申请（A→B 或 B→A）
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func (d *FriendshipDAO) HasPendingRequest(ctx context.Context, userID, friendID 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.Friendship{}).
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Where("((user_id = ? AND friend_id = ?) OR (user_id = ? AND friend_id = ?)) AND status = ?",
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userID, friendID, friendID, userID, constants.FriendshipStatusPending).
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Count(&count).Error
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return count > 0, err
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}
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// GetRequestByID 根据 ID 获取好友申请
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func (d *FriendshipDAO) GetRequestByID(ctx context.Context, id int64) (*model.Friendship, error) {
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var f model.Friendship
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err := d.db.WithContext(ctx).First(&f, id).Error
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return &f, err
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}
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// GetCommonFriends 获取共同好友 ID 列表
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func (d *FriendshipDAO) GetCommonFriends(ctx context.Context, userID, targetID int64) ([]int64, error) {
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funcName := "dao.friendship_dao.GetCommonFriends"
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logs.Debug(ctx, funcName, "查询共同好友",
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zap.Int64("user_id", userID), zap.Int64("target_id", targetID))
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var ids []int64
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err := d.db.WithContext(ctx).
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Raw(`SELECT a.friend_id FROM contact_friendships a
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JOIN contact_friendships b ON a.friend_id = b.friend_id
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WHERE a.user_id = ? AND a.status = ? AND b.user_id = ? AND b.status = ?`,
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userID, constants.FriendshipStatusAccepted, targetID, constants.FriendshipStatusAccepted).
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Scan(&ids).Error
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return ids, err
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}
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// SearchUsers 搜索用户（按用户名或昵称模糊匹配，排除自己）
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func (d *FriendshipDAO) SearchUsers(ctx context.Context, keyword string, excludeUserID int64, page, pageSize int) ([]authModel.User, int64, error) {
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funcName := "dao.friendship_dao.SearchUsers"
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logs.Debug(ctx, funcName, "搜索用户", zap.String("keyword", keyword))
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var users []authModel.User
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var total int64
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query := d.db.WithContext(ctx).
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Model(&authModel.User{}).
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Where("id != ? AND status = 1 AND (username LIKE ? OR nickname LIKE ?)",
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excludeUserID, "%"+keyword+"%", "%"+keyword+"%")
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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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offset := (page - 1) * pageSize
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err := query.Select("id, username, nickname, avatar").
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Offset(offset).Limit(pageSize).
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Find(&users).Error
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return users, total, err
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}
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// GetFriendIDs 获取用户的所有好友 ID 列表
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func (d *FriendshipDAO) GetFriendIDs(ctx context.Context, userID int64) ([]int64, error) {
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var ids []int64
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err := d.db.WithContext(ctx).
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Model(&model.Friendship{}).
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Where("user_id = ? AND status = ?", userID, constants.FriendshipStatusAccepted).
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Pluck("friend_id", &ids).Error
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return ids, err
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}
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// CountFriendsByGroup 统计每个分组的好友数
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func (d *FriendshipDAO) CountFriendsByGroup(ctx context.Context, userID int64) (map[int64]int, error) {
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type GroupCount struct {
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GroupID int64 `gorm:"column:group_id"`
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Count int `gorm:"column:cnt"`
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}
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var counts []GroupCount
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err := d.db.WithContext(ctx).
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Model(&model.Friendship{}).
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Select("group_id, COUNT(*) as cnt").
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Where("user_id = ? AND status = ? AND group_id IS NOT NULL", userID, constants.FriendshipStatusAccepted).
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Group("group_id").
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Scan(&counts).Error
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result := make(map[int64]int)
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for _, c := range counts {
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result[c.GroupID] = c.Count
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}
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return result, err
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}
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