使用猫鼬将评论作为对象添加到帖子中的评论数组中，但是无法获取我在同一函数中发布回的评论

Question

-我是新来的。请多多指教

• 我尝试了各种猫鼬查找查询。

• 这给出了未定义的错误

• 如果我尝试

• `const postedComment = postToComment.comments.find({commentId:uuid});,`
  

• 这会给出状态 500 内部服务器错误。

    export const commentOnPost = async (req, res) => {
      const uuid = uuidv4();
      try {
        const postToComment = await Post.findById(req.params.postId);
        if (!postToComment) {
          res.status(400).json({ error: "Post not found" });
        } else {
           console.log(req.body, "body check ");
           const commentObject = {
            userId: req.userId,
            comment: req.body.comment,
            commentId: uuid,
          };
           await postToComment.updateOne({
             $push: { comments: commentObject },
          });
           **const postedComment = postToComment.comments.find(
             (comment) => comment.commentId === uuid
          );
           console.log(postedComment,"comment that was posted");**
  
  
  
          res
            .status(200)
        .json({ message: "Commented successfully", comment: 
  

  发表评论}); } } 捕获（错误）{ res.status(500).json(错误); } };

Answer 1

The problem is solved by getting the post data once again and then performing the    
find() on that post  


const postToComment2 = await Post.findById(req.params.postId);
      const postedComment = postToComment2.comments.find(
        (comment) => comment.commentId === uuid
      );