如何将数组对象中的数据保存到 MongoDB

我在将数据从数组对象保存到 MongoDB 数据库时遇到问题。我有带有嵌入子文档的主文档的架构。主文档和所有其他子文档的保存均成功，但子文档是数组除外。

正如您从屏幕截图中看到的，子文档中的字段没有保存到数据库中。

Robo 3T 的屏幕截图 https://i.stack.imgur.com/iX5qY.png

任何帮助将非常感激。谢谢！

请求对象示例：

{
  "incidentNumber": "IN1001",
  "status": "New"
  "Approval": {
    "approvers": [
      {
        "approverType": "Asset Management",
        "approverName": "Bob",
        "approvalDate": 1234
      },
      {
        "approverType": "HR",
        "approverName": "Janet",
        "approvalDate": 1234
      },
      {
        "approverType": "Finance",
        "approverName": "Bill",
        "approvalDate": 1234
      }
    ]
  }
}

Schema:

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

const approvalSchema = new Schema(
  {
    approvers: [
      {
        approverType: {
          type: String
        },
        approverName: {
          type: String
        },
        approvalDate: {
          type: Date
        }
      }
    ]
  }
);

const headerSchema = new Schema(
  {
    incidentNumber: {
      type: String,
      required: true,
      unique: true
    },
    status: {
      type: String,
      required: true,
      enum: ['Completed', 'Draft', 'New', 'Pending', 'Submitted']
    },
    approval: [approvalSchema]
  },
  { timestamps: true }
);

服务器代码：

let incidentNumber: "IN1001";
let status: "New";

app.post('/create-incident', (req, res) => {
  const header = new Header({
    incidentNumber: incidentNumber,
    status: status,
    approval: [
      {
        approvers: [
          {
            approverType: req.body.Approval.approvers.approverType,
            approverName: req.body.Approval.approvers.approverName,
            approvalDate: req.body.Approval.approvers.approvalDate
          }
        ]
      }
    ]
  });
});

header
  .save()
  .then(Header => {
    res.status(200).send(Header);
  })
  .catch(e => {
    res.status(400).send(e);
  }