将函数数据添加到我的模型-节点/表达式

Question

我有一个带有输入字段“ firstName”，“ lastName”和“ assetTag”的表单。我想提交该表单并发布所有这些数据以及一个名为“ modelType”的附加字段。来自modelType字段的数据来自函数调用si.system（），但我不确定如何将其传递到模型中，因为这是一个承诺。

如何将数据从console.log（data.model）传递到formData？

app.js发布请求：

app.post('/', (req, res) => {

        si.system()
    .then(data => console.log(data.model))
    .catch(error => console.error(error))

  const formData = {
    firstName: req.body.firstName,
    lastName: req.body.lastName,
    assetTag: parseInt(req.body.assetTag)
  }

  const system = new System(formData);

  system.save()
    .then(result => {
      console.log(result);
    })
    .catch(err => {
      console.log(err);
    });

});

型号：

const mongoose = require('mongoose');

var SystemSchema = new mongoose.Schema({
    firstName: {
        type: String,
        required: true
    },
    lastName: {
        type: String,
        required: true
    },
    assetTag: {
        type: Number,
        required: true
    },
    modelType: {
        type: String,
        required: true
    }
});

module.exports = mongoose.model('System', SystemSchema);

Answer 1

如果您正在谈论从承诺中获得价值，则需要研究async / await。

这里是代码

app.post('/', async (req, res) => {

  let data = await si.system();

  const formData = {
    firstName: req.body.firstName,
    lastName: req.body.lastName,
    modelType: data.model,
    assetTag: parseInt(req.body.assetTag)
  }

  const system = new System(formData);

  system.save()
    .then(result => {
      console.log(result);
    })
    .catch(err => {
      console.log(err);
    });

});