Question

这是我的Mongoose Schema：

const InvoiceSchema = new Schema({
name: { type: String, required: true },
description: { type: String },

items: [{
    product: { type: mongoose.Schema.Types.ObjectId, ref: 'Product'},
    amount: { type: Number },
    name: { type: String, required: true },
    quantity: { type: Number },
    rate: { type: Number, required: true }
}],
createdBy: { type: Schema.ObjectId, ref: 'User', required: true },
}

现在我想从POST数据中填充我的架构，我的问题是我不知道如何发布我的项目（我如何命名我的字段）？

我使用PostMan发布数据。

Answer 1

获取发布数据

在mongoose中添加新记录

const {ObjectId} = mongoose.Schema.Types;
const newInvoice = new InvoiceSchema({
  name: "John Smith",
  description: "This is a description",
  items: [{
    product: 'THIS_IS_AN_OBJECT_ID_STRINGIFIED',
    amount: 2,
    quantity: 5,
    //name - comes from the product model
    //rate - comes from the product model
  }]
});

newInvoice.save();

发布并保存

//Response format
{
  name: 'John Smith',
  description: 'This is a description',
  items: [
    {
      product: 'THIS_IS_AN_OBJECT_ID',
      amount: 2,
      quantity: 5
    }
  ]
}

app.post('/yourRoute', (req, res) => {
  const {name, description, items} = req.body;
  const newInvoice = new InvoiceSchema({name, description, items});
  newInvoice.save().then(()=>res.send('success'))
});

Answer 2

批量添加商品

const invoice = new Invoice();
invoice.items = req.body.items;

添加单件

invoice.items.push(item);

更新单件

const item = invoice.items.id(req.params._id);
item.attribute = ...
// Do update

Express mongoose从POST填充子文档数组

2 个答案: