node.js - 使用 mongoose 将嵌入文档的多个实例保存到我的模型中

Question

我正在尝试在模型中保存嵌入文档的多个实例，并且希望每次填写表单数据时，都会创建嵌入文档的新实例并将其推送到数组中。

这是我的预测架构。

const mongoose = require('mongoose');
mongoose.Promise = global.Promise;

const slug = require('slugs');

const teamSchema = new mongoose.Schema({
  team1: {
    type: String
  },
  team2: {
    type: String
  },
  prediction:{
    type: String
  }
});

const predictionSchema = new mongoose.Schema({
  author:{
    type: String
  },
  team: [ teamSchema ]
});


module.exports = mongoose.model('Prediction', predictionSchema);

这是我的 Controller

const mongoose = require('mongoose');
const Prediction = mongoose.model('Prediction');

exports.homePage = (req, res) => {
  res.render('layout', {title: 'Home'});
};

exports.addPrediction = (req, res) => {
  res.render('editPrediction', {title: 'Add Prediction'});
};

exports.createPrediction = async(req, res) => {
  const prediction = new Prediction({
    author: req.body.author,
    team: {
      team1: req.body.team1,
      team2: req.body.team2,
      prediction: req.body.prediction
    }
  });
await prediction.save();
res.redirect('/');
};

还有我的 Form.pug

form.ui.form.segment#register-form(action='/add' method='POST')
    .field
      label Name
      |     
      .ui.left.labeled.icon.input
        input(type='text', placeholder='Name', name='author')
        |        
        i.user.icon  
    #fields
      - for(var i = 0; i < 2; i++)
        .field
          label Team 1
          |     
          .ui.left.labeled.icon.input
            input(type='text', placeholder='Team 1', name='team1')
            |       
            i.soccer.icon
        .field
          label Team 2
          |     
          .ui.left.labeled.icon.input
            input(type='text', placeholder='Team 2', name='team2')
            |       
            i.soccer.icon
        .field
          label Prediction
          |     
          .ui.left.labeled.icon.input
            input(type='text', placeholder='Prediction', name='prediction')
            |       
            i.lock.icon        
    button.ui.button.fluid(type='submit') Save

当我尝试保存一个预测实例时，模型中保存的数据如屏幕截图所示。

当我尝试从表单中保存两个预测实例时。团队的第二个实例只是附加到第一个实例中，而不是作为新对象创建并插入团队数组中。

当我想从表单中保存团队的多个实例时，我需要创建一个新文档并将其推送到团队数组中。我错过了什么？

Answer 1

您必须将第一个架构选项定义为数组:

const mongoose = require('mongoose');
mongoose.Promise = global.Promise;
const slug = require('slugs');

const teamSchema = new mongoose.Schema({
team1: [{
type: String
}],
team2: [{
type: String
}],
prediction:[{
type: String
}]
});

const predictionSchema = new mongoose.Schema({
author:{
type: String
},
team: type: teamSchema 
});

并且您的form.Pug是正确的然后您可以在保存后通过以下方式访问它们:

team.team1[0] team.team2[0] team.prediction[0]