架构错误意味着app [英] schema error mean app

问题描述

我有架构问题。我在api中没有得到正确的架构。这是我的api：

I have a schema problem. I dont get the right schema in my api. here is my api :

var Meetup = require('./models/meetup');

    module.exports.create = function (req, res) {
      var meetup = new Meetup(req.body);
      meetup.save(function (err, result) {
        console.log(result);
        res.json(result);
      });
    }

    module.exports.list = function (req, res) {
      Meetup.find({}, function (err, results) {
        res.json(results);
      });
    }

console.log显示{__v：0，_id：58343483ff23ad0c40895a00}应显示{__v：0，名称：'文字输入'，_ id：58343076b80874142848f26e}

The console.log displays { __v: 0, _id: 58343483ff23ad0c40895a00 } while it should display { __v: 0, name: 'Text input', _id: 58343076b80874142848f26e }

这是我的模特：

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var Meetup = new Schema({
  name: String,

});


module.exports = mongoose.model('Meetup', Meetup);

推荐答案

如果 req.body 未定义（正如您在评论中所写）然后显然新的Meetup（req.body）; 无法用任何数据填充新对象（如{ name：'text input'}或其他任何内容）因为它是以 undefined 作为参数调用的。

If req.body is undefined (as you wrote in the comments) then obviously new Meetup(req.body); cannot populate the new objects with any data (like {name: 'Text input'} or anything else) since it is called with undefined as an argument.

Make确保您使用正文解析器并在请求中传递正确的数据。

Make sure you use the body-parser and that you pass the correct data in your request.

另外，检查错误。采用错误参数的每个回调应采用以下形式：

Also, check for errors. Every callback that takes the err argument should be in the form of:

module.exports.list = function (req, res) {
  Meetup.find({}, function (err, results) {
    if (err) {
      // handle error
    } else {
      // handle success
    }
  });
}

如何追踪问题：

• 请确保使用正文解析器在后端


• 确保在前端传递正确的数据


• 确保前端传递的数据位于正确的位置（正确）


• 确保数据格式正确（JSON？URL编码？）


• 添加控制台.log（req.body）在之后新的Meetup（req.body）; 知道你节省了什么


• 在浏览器的开发者控制台中打开网络选项卡，查看转移的内容

• make sure you use the body-parser on the backend
• make sure you pass the correct data on the frontend
• make sure that the data passed by your frontend is in the correct place (body)
• make sure that the data is in the correct format (JSON? URL-encoded?)
• add console.log(req.body) after new Meetup(req.body); to know what you save
• open the Network tab in the developer console of your browser and see what is transferred

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