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feature/post #1

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daniel.w wants to merge 7 commits from feature/post into main
pull from: feature/post
merge into: digimon:main
Conversation 0 Commits 7 Files Changed 29 +198 -24
8 changed files with 198 additions and 24 deletions
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18
generate/protobuf/tweeting.proto
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@ -130,7 +130,7 @@ message LikeCountReq {
// 讚/不讚數量回應
message LikeCountResp {
string count = 1; // 總共按讚數量
int64 count = 1; // 總共按讚數量
}
// 評論貼文的請求
@ -174,6 +174,18 @@ message UpdateCommentReq {
string content = 2; // 更新後的評論內容
}
message PostReactionActionResp {
string PostID =1; // 貼文的 ID
int64 reaction_type = 2; // 用戶的反應類型，可能是讚或不讚
bool is_increment = 3; // 表示是否增加（true 表示增加，false 表示減少）
}
message IncDecLikeDislikeCountReq {
string PostID =1; // 貼文的 ID
int64 reaction_type = 2; // 用戶的反應類型，可能是讚或不讚
bool is_increment = 3; // 表示是否增加（true 表示增加，false 表示減少）
}
// 定義貼文服務
service PostService {
// NewPost 新增貼文
@ -184,9 +196,11 @@ service PostService {
rpc UpdatePost(UpdatePostReq) returns (OKResp);
// ListPosts 查詢貼文
rpc ListPosts(QueryPostsReq) returns (ListPostsResp);
// IncDecLikeDislikeCount 增減數量
rpc IncDecLikeDislikeCount(IncDecLikeDislikeCountReq) returns (OKResp);
// Like 點讚/取消讚 貼文
rpc Like(LikeReq) returns (OKResp);
rpc Like(LikeReq) returns (PostReactionActionResp);
// GetLikeStatus 取得讚/不讚狀態
rpc GetLikeStatus(GetLikeStatusReq) returns (GetLikeStatusResp);
// LikeList 取得讚/不讚列表

2
internal/domain/const.go
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@ -14,7 +14,7 @@ const (
type LikeType int8
func (l LikeType) ToInt32() int8 {
func (l LikeType) ToInt8() int8 {
return int8(l)
}

35
internal/logic/postservice/count_like_logic.go
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@ -1,10 +1,11 @@
package postservicelogic
import (
"context"
"app-cloudep-tweeting-service/gen_result/pb/tweeting"
"app-cloudep-tweeting-service/internal/domain"
"app-cloudep-tweeting-service/internal/svc"
ers "code.30cm.net/digimon/library-go/errs"
"context"
"github.com/zeromicro/go-zero/core/logx"
)
@ -23,9 +24,35 @@ func NewCountLikeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CountLi
}
}
type countLikeReq struct {
PostID string `json:"post_id" validate:"required"` // 貼文的 ID
ReactionType domain.LikeType `json:"reaction_type" validate:"required,oneof=1 2"` // 用戶的反應類型，可能是讚或不讚
}
// CountLike 取得讚/不讚數量
func (l *CountLikeLogic) CountLike(in *tweeting.LikeCountReq) (*tweeting.LikeCountResp, error) {
// todo: add your logic here and delete this line
// 驗證資料
if err := l.svcCtx.Validate.ValidateAll(&countLikeReq{
PostID: in.GetTargetId(),
ReactionType: domain.LikeType(in.GetLikeType()),
}); err != nil {
return nil, ers.InvalidFormat(err.Error())
}
return &tweeting.LikeCountResp{}, nil
count, err := l.svcCtx.PostLikeModel.Count(l.ctx, in.GetTargetId(), domain.LikeType(in.GetLikeType()))
if err != nil {
e := domain.PostMongoErrorL(
logx.WithContext(l.ctx),
[]logx.LogField{
{Key: "req", Value: in},
{Key: "func", Value: "PostLikeModel.Count"},
{Key: "err", Value: err},
},
"failed to count like or dislike").Wrap(err)
return nil, e
}
return &tweeting.LikeCountResp{
Count: count,
}, nil
}

64
internal/logic/postservice/inc_dec_like_dislike_count_logic.go Normal file
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@ -0,0 +1,64 @@
package postservicelogic
import (
"app-cloudep-tweeting-service/internal/domain"
model "app-cloudep-tweeting-service/internal/model/mongo"
ers "code.30cm.net/digimon/library-go/errs"
"context"
"app-cloudep-tweeting-service/gen_result/pb/tweeting"
"app-cloudep-tweeting-service/internal/svc"
"github.com/zeromicro/go-zero/core/logx"
)
type IncDecLikeDislikeCountLogic struct {
ctx context.Context
svcCtx *svc.ServiceContext
logx.Logger
}
func NewIncDecLikeDislikeCountLogic(ctx context.Context, svcCtx *svc.ServiceContext) *IncDecLikeDislikeCountLogic {
return &IncDecLikeDislikeCountLogic{
ctx: ctx,
svcCtx: svcCtx,
Logger: logx.WithContext(ctx),
}
}
type postReactionAction struct {
PostID string `json:"post_id" validate:"required"` // 貼文的 ID
ReactionType domain.LikeType `json:"reaction_type" validate:"required,oneof=1 2"` // 用戶的反應類型，可能是讚或不讚
IsIncrement bool `json:"is_increment" validate:"required"` // 表示是否增加（true 表示增加，false 表示減少）
}
// IncDecLikeDislikeCount 增減數量
func (l *IncDecLikeDislikeCountLogic) IncDecLikeDislikeCount(in *tweeting.IncDecLikeDislikeCountReq) (*tweeting.OKResp, error) {
// 驗證資料
if err := l.svcCtx.Validate.ValidateAll(&postReactionAction{
PostID: in.GetPostID(),
ReactionType: domain.LikeType(in.GetReactionType()),
IsIncrement: in.GetIsIncrement(),
}); err != nil {
return nil, ers.InvalidFormat(err.Error())
}
err := l.svcCtx.PostModel.IncDecLikeDislikeCountLogic(l.ctx, &model.PostReactionAction{
PostID: in.GetPostID(),
ReactionType: domain.LikeType(in.GetReactionType()),
IsIncrement: in.GetIsIncrement(),
})
if err != nil {
e := domain.PostMongoErrorL(
logx.WithContext(l.ctx),
[]logx.LogField{
{Key: "req", Value: in},
{Key: "func", Value: "PostModel.IncDecLikeDislikeCountLogic"},
{Key: "err", Value: err},
},
"failed to inc like or dislike").Wrap(err)
return nil, e
}
return &tweeting.OKResp{}, nil
}

14
internal/logic/postservice/like_logic.go
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@ -29,21 +29,19 @@ func NewLikeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LikeLogic {
type likeReq struct {
Target string `json:"target" validate:"required"`
UID string `json:"uid" validate:"required"`
LikeType domain.LikeType `json:"like_type" validate:"required,oneof=1 2"`
}
// Like 點讚/取消讚 貼文
func (l *LikeLogic) Like(in *tweeting.LikeReq) (*tweeting.OKResp, error) {
func (l *LikeLogic) Like(in *tweeting.LikeReq) (*tweeting.PostReactionActionResp, error) {
// 驗證資料
if err := l.svcCtx.Validate.ValidateAll(&likeReq{
Target: in.TargetId,
UID: in.GetUid(),
LikeType: domain.LikeType(in.GetLikeType()),
}); err != nil {
return nil, ers.InvalidFormat(err.Error())
}
err := l.svcCtx.PostLikeModel.LikeDislike(l.ctx, &model.PostLikes{
likeResp, err := l.svcCtx.PostLikeModel.LikeDislike(l.ctx, &model.PostLikes{
TargetID: in.GetTargetId(),
UID: in.GetUid(),
Type: int8(in.GetLikeType()),
@ -60,5 +58,11 @@ func (l *LikeLogic) Like(in *tweeting.LikeReq) (*tweeting.OKResp, error) {
return nil, e
}
return &tweeting.OKResp{}, nil
// 將文章的數量增加或減少的功能，是業務邏輯，從外面再決定要不要丟MQ 後算，或是怎麼算
return &tweeting.PostReactionActionResp{
PostID: likeResp.PostID,
ReactionType: int64(likeResp.ReactionType),
IsIncrement: likeResp.IsIncrement,
}, nil
}

35
internal/model/mongo/post_likes_model.go
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@ -19,9 +19,16 @@ type (
// and implement the added methods in customPost_likesModel.
Post_likesModel interface {
post_likesModel
LikeDislike(ctx context.Context, postLike *PostLikes) error
LikeDislike(ctx context.Context, postLike *PostLikes) (*PostReactionAction, error)
FindLikeUsers(ctx context.Context, param *QueryPostLikeReq) ([]*PostLikes, int64, error)
FindUIDPostLikeStatus(ctx context.Context, param *QueryUIDPostLikeStatusReq) ([]UIDPostLikeStatusResp, error)
Count(ctx context.Context, target string, likeType domain.LikeType) (int64, error)
}
PostReactionAction struct {
PostID string // 貼文的 ID
ReactionType domain.LikeType // 用戶的反應類型，可能是讚或不讚
IsIncrement bool // 表示是否增加（true 表示增加，false 表示減少）
}
QueryPostLikeReq struct {
@ -55,7 +62,12 @@ func NewPost_likesModel(url, db, collection string) Post_likesModel {
}
}
func (m *defaultPost_likesModel) LikeDislike(ctx context.Context, postLike *PostLikes) error {
func (m *defaultPost_likesModel) LikeDislike(ctx context.Context, postLike *PostLikes) (*PostReactionAction, error) {
result := &PostReactionAction{
PostID: postLike.TargetID,
ReactionType: domain.LikeType(postLike.Type),
}
// 使用 target_id、uid、type 來查詢資料是否存在
filter := bson.M{
"target_id": postLike.TargetID,
@ -69,23 +81,27 @@ func (m *defaultPost_likesModel) LikeDislike(ctx context.Context, postLike *Post
if err == nil {
// 資料存在，進行刪除操作
result.IsIncrement = false
_, err = m.conn.DeleteOne(ctx, filter)
if err != nil {
return err // 刪除失敗
return nil, err // 刪除失敗
}
return nil // 刪除成功
return result, nil // 刪除成功
} else if errors.Is(mongo.ErrNoDocuments, err) {
// 資料不存在，進行插入操作
result.IsIncrement = true
postLike.ID = primitive.NewObjectID() // 設置新的 ObjectID
postLike.CreateAt = time.Now().UTC().UnixNano()
_, err = m.conn.InsertOne(ctx, postLike)
if err != nil {
return err // 插入失敗
return nil, err // 插入失敗
}
return nil // 插入成功
return result, nil // 插入成功
} else {
// 其他錯誤
return err
return nil, err
}
}
@ -171,3 +187,8 @@ func (m *defaultPost_likesModel) FindUIDPostLikeStatus(ctx context.Context, para
return results, nil
}
func (c customPost_likesModel) Count(ctx context.Context, target string, likeType domain.LikeType) (int64, error) {
// TODO implement me
panic("implement me")
}

38
internal/model/mongo/post_model.go
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@ -1,6 +1,7 @@
package model
import (
"app-cloudep-tweeting-service/internal/domain"
"context"
"errors"
"fmt"
@ -24,6 +25,7 @@ type (
DeleteMany(ctx context.Context, id ...string) (int64, error)
UpdateOptional(ctx context.Context, data *Post) (*mongo.UpdateResult, error)
Find(ctx context.Context, param *QueryPostModelReq) ([]*Post, int64, error)
IncDecLikeDislikeCountLogic(ctx context.Context, param *PostReactionAction) error
}
customPostModel struct {
@ -192,3 +194,39 @@ func (m *defaultPostModel) Find(ctx context.Context, param *QueryPostModelReq) (
return nil, 0, err
}
}
func (c *customPostModel) IncDecLikeDislikeCountLogic(ctx context.Context, param *PostReactionAction) error {
// 建立篩選條件，找到要更新的貼文
filter := bson.M{"_id": param.PostID}
// 初始化更新操作
update := bson.M{}
// 根據 ReactionType 和 IsIncrement 決定更新邏輯
if param.ReactionType == domain.LikeTypeLike {
if param.IsIncrement {
// 增加 like 計數
update = bson.M{"$inc": bson.M{"like": 1}}
} else {
// 減少 like 計數
update = bson.M{"$inc": bson.M{"like": -1}}
}
} else if param.ReactionType == domain.LikeTypeDisLike {
if param.IsIncrement {
// 增加 dislike 計數
update = bson.M{"$inc": bson.M{"dislike": 1}}
} else {
// 減少 dislike 計數
update = bson.M{"$inc": bson.M{"dislike": -1}}
}
}
// 執行更新操作
key := prefixPostCacheKey + param.PostID
_, err := c.conn.UpdateOne(ctx, key, filter, update)
if err != nil {
return err // 返回錯誤信息
}
return nil // 成功返回 nil
}

8
internal/server/postservice/post_service_server.go
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@ -46,8 +46,14 @@ func (s *PostServiceServer) ListPosts(ctx context.Context, in *tweeting.QueryPos
return l.ListPosts(in)
}
// IncDecLikeDislikeCount 增減數量
func (s *PostServiceServer) IncDecLikeDislikeCount(ctx context.Context, in *tweeting.IncDecLikeDislikeCountReq) (*tweeting.OKResp, error) {
l := postservicelogic.NewIncDecLikeDislikeCountLogic(ctx, s.svcCtx)
return l.IncDecLikeDislikeCount(in)
}
// Like 點讚/取消讚 貼文
func (s *PostServiceServer) Like(ctx context.Context, in *tweeting.LikeReq) (*tweeting.OKResp, error) {
func (s *PostServiceServer) Like(ctx context.Context, in *tweeting.LikeReq) (*tweeting.PostReactionActionResp, error) {
l := postservicelogic.NewLikeLogic(ctx, s.svcCtx)
return l.Like(in)
}