无法删除对 post 的评论？

Question

我正在尝试删除对 post 的评论，但找不到该评论。当我 console.log(post.comments) 时，它会显示所有评论，但我仍然找不到评论。错误是 Comment not found 我写的是为了发现评论是否仍然存在。但是评论在那里，我将 id 与它匹配。帮助我，我是 NodeJs 的新手。帮我解决这个问题

*作为前端，我正在使用 react 和 redux 我认为问题出在后端，我还用 postman 进行了测试。无法删除来自 postman.

的评论

这里是评论路由和控制器

router.route('/:id/comment/:comment_id').delete(protect, deleteComment);

export const deleteComment = asyncHandler(async (req, res) => {
  const post = await Post.findById(req.params.id);

  const comment = post.comments.find(
    (comment) => comment._id === req.params.comment_id
  );

  if (!comment) {
    res.status(404);
    throw new Error('Comment not found');
  }

  //Check User

  if (comment.user.toString() === req.user._id.toString()) {
    post.comments = post.comments.filter(
      ({ id }) => id !== req.params.comment_id
    );

    await post.save();

    return res.json(post.comments);
  } else {
    res.status(401);
    throw new Error('User not authorized');
  }
});

这里是 post 模型

import mongoose from 'mongoose';

const postSchema = mongoose.Schema(
  {
    user: {
      type: mongoose.Schema.Types.ObjectId,
      ref: 'User',
      required: [true, 'Please Author is required'],
    },
    title: {
      type: String,
      required: true,
    },
    desc: {
      type: String,
      required: true,
    },
    img: {
      type: String,
    },
    isLiked: {
      type: Boolean,
      default: false,
    },
    isDisLiked: {
      type: Boolean,
      default: false,
    },
    likes: [
      {
        type: mongoose.Schema.Types.ObjectId,
        ref: 'User',
      },
    ],
    disLikes: [
      {
        type: mongoose.Schema.Types.ObjectId,
        ref: 'User',
      },
    ],
    comments: [
      {
        user: {
          type: mongoose.Schema.Types.ObjectId,
          ref: 'User',
        },
        text: {
          type: String,
          required: true,
        },
        name: {
          type: String,
        },
        pic: {
          type: String,
        },
        date: {
          type: Date,
          default: Date.now,
        },
      },
    ],
    categories: {
      type: Array,
    },
  },
  {
    timestamps: { createdAt: 'created_at', updatedAt: 'modified_at' },
  }
);

const Post = mongoose.model('Post', postSchema);

export default Post;

Answer 1

当您访问 _id 时，您正在访问 ObjectId

的实例

您应该尝试与 id 进行比较，这是 _id

的字符串表示形式

const comment = post.comments.find(
    (comment) => comment.id === req.params.comment_id
  );

无法删除对 post 的评论？

Failed to delete the a comment on post?

javascript

mongodb

node.js

reactjs

mongoose-schema

这里是评论路由和控制器

这里是 post 模型