所以我尝试用mongoDB测试一些种子数据，它是一个电子商务商店，我尝试解析一个类别数组，但是它给出了一个错误。

const { Schema, model } = require('mongoose');
const dateFormat = require('../utils/dateFormat');

const productSchema = new Schema({
  title: {
    type: String,
    required: 'The Product title is required',
    minlength: 1,
    maxlength: 280,
    trim: true,
  },
  description: {
    type: String,
    required: true,
    trim: true,
  },
  categories: [{
    type: Schema.Types.ObjectId,
    ref: 'Category',
  }],
  brand: {
    type: Schema.Types.ObjectId,
    ref: 'Brand',
    required: false
},
  image: {
    type: String,
    required: true,
    trim: true,
  },
  price: {
    type: Number,
    required: true,
    trim: true,
  },
  createdAt: {
    type: Date,
    default: Date.now,
    get: (timestamp) => dateFormat(timestamp),
  }
});

const Product = model('Product', productSchema);

module.exports = Product;

品牌型号：

const { Schema, model } = require('mongoose');
const dateFormat = require('../utils/dateFormat');

const brandSchema = new Schema({
  name: {
    type: String,
    required: 'The Brand name is required',
    minlength: 1,
    maxlength: 280,
    trim: true,
  },
  products: [{
    type: Schema.Types.ObjectId,
    ref: 'Product',
  }],
  createdAt: {
    type: Date,
    default: Date.now,
    get: (timestamp) => dateFormat(timestamp),
  }
});

const Brand = model('Brand', brandSchema);

module.exports = Brand;

范畴模型

const { Schema, model } = require('mongoose');
const dateFormat = require('../utils/dateFormat');

const categorySchema = new Schema({
  name: {
    type: String,
    required: 'The Category name is required',
    minlength: 1,
    maxlength: 280,
    trim: true,
  },
  products: [{
    type: Schema.Types.ObjectId,
    ref: 'Product',
  }],
  createdAt: {
    type: Date,
    default: Date.now,
    get: (timestamp) => dateFormat(timestamp),
  }
});

const Category = model('Category', categorySchema);

module.exports = Category;

这是种子数据的一小段

{
      "title": "Ansie Boots",
      "description": "2",
      "image": "http://via.placeholder.com/640x360",
      "price": 145,
      "categories": ["Boots", "For Her"],
      "brand":"Vagabond"
    }

我正在阅读MongoDB文档，偶然发现了这个$facet文档，但我对它试图做什么有点困惑，因为我仍然是一个初学者。

errors: {
    'categories.0': CastError: Cast to [ObjectId] failed for value "[ 'Trainers', 'For Him' ]" (type string) at path "categories.0" because of "CastError"

错误代码显示brands还

stringValue: '"Nike"',
      messageFormat: undefined,
      kind: 'ObjectId',
      value: 'Nike',
      path: 'brand',
      reason: BSONTypeError: Argument passed in must be a string of 12 bytes or a string of 24 hex characters or an integer