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Mongoose-将文档保存到另一个模型

mongoose mongodb node.js

Ari · 技术社区 · 5 年前

我正在尝试将文档保存到另一个模型,然后再将其删除。但我不能让它工作。这是我所做事情的描述。

架构

我创建了一个mongoose模式并从中创建了两个模型。

const Schema = mongoose.Schema;

const AccountSchema = new Schema({
  fullname: {
    type: String,
    trim: true
    // required: true
  },
  username: {
    type: String,
    trim: true,
    unique: true,
    required: true
  },
  email: {
    type: String,
    trim: true,
    unique: true,
    match: [/.+\@.+\..+/, "Please enter valid email!"],
    required: true
  },
  password_hash: {
    type: String,
    unique: true,
    required: true
  },
  salt: String,
  created: {
    type: Date,
    default: new Date()
  },
  updated: Date,
  updateCount: { type: Number, default: 0 }
});

创建模型

const AccountModel = mongoose.model("AccountModel", AccountSchema);
const AccountModel_deleted = mongoose.model("AccountModel_deleted", AccountSchema);

然后,我为一个url参数创建了一个函数,该参数根据用户的id返回用户信息。例如:( /api/users/:the_id )

const the_id = (req, res, next, id) => {
  AccountModel.findById(id, (err, user) => {
    if (err) {
      return res.status(400).json({
        error: "Cannot retrieve user with that id!"
      });
    }
    req.userinfo = user;
    next();
  });
};

我试图保存从上述方法发送的数据( the_id )使用以下方法访问数据库:

// MOVE BEFORE DELETE
const move_to_deleted = (req, res, next) => {
  const { _id, ...selected_user } = req.userinfo.toObject();
  const moved = new AccountModel_deleted(selected_user);
  moved.save((err, result) => {
    if (err) {
      return res.status(400).json({
        error: err
      });
    }
    res.json({
      message: "Saved to database!"
    });
  });
  // End moving
  next();
};

通过此路由调用该方法:

router.route("/api/users/:the_id").post(move_to_deleted);

并用以下方法执行:

      fetch("/api/users/" + _id, {
        method: "POST",
        headers: {
          Accept: "application/json",
          "Content-Type": "application/json",
          Authorization: "Bearer " + this.loginInfo.token
        },
        body: JSON.stringify(data)
      })
        .then(response => {
          console.log(response);
        })
        .catch(e => console.log(e));

但是失败了。它不会保存并返回以下消息:

Response { type: "basic", url: "http://localhost:3000/api/users/5c96fd6855040e2884efc097", redirected: false, status: 400, ok: false, statusText: "Bad Request", headers: Headers, body: ReadableStream, bodyUsed: false }