인프런 커뮤니티 질문&답변

좋아요한 게시글을 마이페이지에서 확인하고 싶어서 기능을 구현했는데 다음과 같이 Post끼리는 관계가 없다고 에러가 발생하더라고요

처음에 구현하고나서는 잘 동작했는데 갑자기 재실행하니까 다음과 같은 오류가 발생하더라고요

router쪽에서 발생하는 에라같은데 혹시 이유에 대해서 알 수 있을까요?

에러 로그

SequelizeEagerLoadingError: Post is not associated to Post!
    at Function._getIncludedAssociation (C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:565:13)
    at Function._validateIncludedElement (C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:502:53)
    at C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:421:37
    at Array.map (<anonymous>)
    at Function._validateIncludedElements (C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:417:39)
    at Function.findAll (C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:1118:12)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async Function.findOne (C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\node_modules\sequelize\lib\model.js:1228:12)
    at async C:\Users\Administrator\OneDrive\Desktop\Recipe.io\prepare\back\routes\post.js:122:18
PATCH /post/15/like 500 7.755 ms - 1344

postcard

const onLikePost = useCallback(() => {    
    dispatch(likePostRequestAction(post.id));
    message.success('게시글이 스크랩에 추가되었습니다.', 3);
  }, []);
  const unLikePost = useCallback(() => {
    dispatch(unLikePostRequestAction(post.id));
    message.error('게시글이 스크랩에서 제거되었습니다.', 3);
  }, []);

reducer

case LIKE_POST_SUCCESS: {
          const post = draft.mainPosts.find((v) => v.id === action.data.id);
          post.Likers.push({ id: action.data.UserId });                    
          draft.likePostLoading = false;
          draft.likePostDone = true;
          break;
        }
      case LIKE_POST_FAILURE:
        draft.likePostLoading = false;
        draft.likePostError = action.error;
        break;
      case UNLIKE_POST_REQUEST:
        draft.unLikePostLoading = true;
        draft.unLikePostDone = false;
        draft.unLikePostError = null;
        break;
      case UNLIKE_POST_SUCCESS: {
          const post = draft.mainPosts.find((v) => v.id === action.data.PostId);
          post.Likers = post.Likers.filter((v) => v.id !== action.data.UserId);
          draft.unLikePostLoading = false;
          draft.unLikePostDone = true;
          break;
        }
      case UNLIKE_POST_FAILURE:
        draft.unLikePostLoading = false;
        draft.unLikePostError = action.error;
        break;
     

case SCRAP_ADD_POST_TO_ME:
        draft.me.Liked.unshift(action.data);
        break;
      case SCRAP_REMOVE_POST_OF_ME:
        draft.me.Liked = draft.me.Liked.filter((v) => v.id !== action.data.id);
        break;

saga

function likePostAPI(data) {
  return axios.patch(`/post/${data}/like`);
}

function* likePost(action) {
  try {
    const result = yield call(likePostAPI, action.data);          
    yield put({
      type: LIKE_POST_SUCCESS,
      data: result.data,
    })
    yield put({
      type: SCRAP_ADD_POST_TO_ME,
      data: result.data,
    })
  } catch(err) {
    yield put({ 
      type: LIKE_POST_FAILURE,
      data: err.response.data 
    })
  }  
}

function unLikePostAPI(data) {
  return axios.delete(`/post/${data}/like`);
}

function* unLikePost(action) {   
  try {
    const result = yield call(unLikePostAPI, action.data);
    yield put({
      type: UNLIKE_POST_SUCCESS,      
      data: result.data,
    })
    yield put({
      type: SCRAP_REMOVE_POST_OF_ME,
      data: result.data,
    })
  } catch(err) {
    yield put({ 
      type: UNLIKE_POST_FAILURE,
      data: err.response.data 
    })
  }  
}

router

router.patch('/:postId/like', isLoggedIn, async (req, res, next) => { // likePostAPI / PATCH /post/1(게시글번호)/like
  try {
    const post = await Post.findOne({ 
      where: { id: req.params.postId },
      include: [{
        model: Post,
        include: [{
          model: Image,
        }, {
          model: Comment,
          include: [{
            model: User,
            attributes: ['id', 'nickname'],
          }],
        }, {
          model: User,
          attributes: ['id', 'nickname'],
        }, {
          model: User,
          as: 'Likers',
          attributes: ['id'],
        }]
      }],
    });
    if (!post) {
      return res.status(403).send('게시글이 존재하지 않습니다.');
    }
    await post.addLikers(req.user.id);        
    res.status(200).json(post);
  } catch (error) {
    console.error(error);
    next(error);
  }
});

router.delete('/:postId/like', isLoggedIn, async (req, res, next) => { // unLikePostAPI / DELETE /post/1(게시글번호)/like
  try {
    const post = await Post.findOne({
      where: { id: req.params.postId },
    })
    if (!post) {
      return res.status(403).send('게시글이 존재하지 않습니다.');
    }
    await post.removeLikers(req.user.id);
    res.json({ PostId: post.id, UserId: req.user.id });
  } catch (error) {
    console.error(error);
    next(error);
  }
});