🏗️ microservice fabric splitting

app/community/api/internal/logic/comment/dislike_comment_logic.go

@@ -0,0 +1,59 @@
+package comment
+
+import (
+	"context"
+	"errors"
+	"github.com/zeromicro/go-zero/core/logx"
+	"net/http"
+	"schisandra-album-cloud-microservices/app/community/api/internal/svc"
+	"schisandra-album-cloud-microservices/app/community/api/internal/types"
+	errors2 "schisandra-album-cloud-microservices/common/errors"
+	"schisandra-album-cloud-microservices/common/i18n"
+)
+
+type DislikeCommentLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDislikeCommentLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DislikeCommentLogic {
+	return &DislikeCommentLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *DislikeCommentLogic) DislikeComment(req *types.CommentDisLikeRequest) (err error) {
+	uid, ok := l.ctx.Value("user_id").(string)
+	if !ok {
+		return errors.New("user_id not found")
+	}
+	tx := l.svcCtx.DB.Begin()
+	commentLike := l.svcCtx.DB.ScaCommentLike
+	resultInfo, err := tx.ScaCommentLike.Where(commentLike.TopicID.Eq(req.TopicId), commentLike.CommentID.Eq(req.CommentId), commentLike.UserID.Eq(uid)).Delete()
+	if err != nil {
+		_ = tx.Rollback()
+		return err
+	}
+	if resultInfo.RowsAffected == 0 {
+		_ = tx.Rollback()
+		return errors2.New(http.StatusInternalServerError, i18n.FormatText(l.ctx, "comment.LikeError"))
+	}
+	comment := l.svcCtx.DB.ScaCommentReply
+	updates, err := tx.ScaCommentReply.Where(comment.TopicID.Eq(req.TopicId), comment.ID.Eq(req.CommentId)).Update(comment.Likes, comment.Likes.Sub(1))
+	if err != nil {
+		_ = tx.Rollback()
+		return err
+	}
+	if updates.RowsAffected == 0 {
+		_ = tx.Rollback()
+		return errors2.New(http.StatusInternalServerError, i18n.FormatText(l.ctx, "comment.LikeError"))
+	}
+	err = tx.Commit()
+	if err != nil {
+		return err
+	}
+	return nil
+}