Mongoose架构错误：“值转换为字符串失败”

Question

嗨，伙计们，我有一个错误，当我试图发送数组字符串与猫鼬模式其工作正常的标签，而不是selectedFile...

猫鼬模式：

import mongoose from "mongoose";

const postSchema = mongoose.Schema({
  title: String,
  message: String,
  name: String,
  creator: String,
  tags: [String],
  selectedFile: [String],
  likes: {
    type: [String],
    default: [],
  },
  comments: { type: [String], default: [] },
  createdAt: {
    type: Date,
    default: new Date(),
  },
});

const PostMessage = mongoose.model("PostMessage", postSchema);

export default PostMessage;

controller.js

export const createPost = async (req, res) => {
  const post = req.body;
  console.log(post);
  const newPostMessage = new PostMessage({
    ...post,
    creator: req.userId,
    createdAt: new Date().toISOString(),
  });
  try {
    await newPostMessage.save();

    res.status(201).json(newPostMessage);
  } catch (error) {
    res.status(409).json({ message: error.message });
  }
};

类型js

const onChange = async (event) => {
    dispatch({ type: START_LOADING });
    let imgArr = "";
    let obj = event.target.files;
    for (let i = 0; i < obj.length; i++) {
      try {
        const file = obj[0];
        const image = await resizeFile(file);
        imgArr.push(image);
      } catch (err) {
        console.log(err);
      }
    }
    setPostData({ ...postData, selectedFile: ["imgArr"] });
    dispatch({ type: END_LOADING });
  };

对于测试，我将dammy值设置为[“imgar”]，并收到以下错误消息：“PostMessage验证失败：selectedFile:在路径“selectedFile”处为值“['imgar']”（键入数组）转换为字符串失败

我能做什么？记住标签的作用是他接受字符串数组

Answer 1

我找到了解决办法

JSON.stringify (imgArr)

它解决了我的问题