如何在mongoose中添加getlocation

const mongoose = require('mongoose');

const locationSchema = new mongoose.Schema({
  name: String,
  location: {
    type: {
      type: String,
      enum: ['Point'],
      required: true
    },
    coordinates: {
      type: [Number],
      required: true
    }
  }
});

locationSchema.index({ location: '2dsphere' });

const Location = mongoose.model('Location', locationSchema);

module.exports = Location;

const Location = require('./models/location');

const locationData = {
  name: 'Tencent Building',
  location: {
    type: 'Point',
    coordinates: [113.941860, 22.540678]
  }
};

Location.create(locationData, (err, location) => {
  if (err) {
    console.error(err);
  } else {
    console.log('Location added:', location);
  }
});

const Location = require('./models/location');

const searchCoordinates = [113.941860, 22.540678];
const searchRadius = 1000; // 单位为米

Location.find({
  location: {
    $near: {
      $geometry: {
        type: 'Point',
        coordinates: searchCoordinates
      },
      $maxDistance: searchRadius
    }
  }
}, (err, locations) => {
  if (err) {
    console.error(err);
  } else {
    console.log('Locations found:', locations);
  }
});