我正在尝试使用猫鼬geoNear功能，但是它一直向我发送空数组。 下面是我的代码。
我在猫鼬文档中找不到任何示例，我以前从未使用过此功能，仅遵循了教程，而且我不知道自己在做什么错。 如果有人可以帮助我或为我指明方向，将不胜感激。
预先感谢
pharmacieRoute.js：
/**
* search pharmacies around latt & long point, based on perimeter limit
* GET request
* @QueryParam latt : lattitude
* @QueryParam long: longitude
* @QueryParam perimeter: limit perimeter of the research
* @Return JSON array of pharmacies around
*/
router.get("/localisation", (req, res) => {
var long = parseFloat(req.query.long);
var latt = parseFloat(req.query.latt);
var perimeter = req.query.perim;
pharmacie.locatePharmacie(long, latt, perimeter, res);
});
pharmacieController.js：
/**
* query pharmacies around latt & long point, based on perimeter limit
* @latt latt : lattitude
* @long long: longitude
* @perimter perimeter: limit perimeter of the research
* @Return JSON array (pharmacies around)
*/
locatePharmacie : (long, latt, perimeter, res) => {
var point = {
type: "Point",
coordinates: [long, latt]
}
var geoOptions = {
limit: perimeter,
spherical: true //spherical: based on earth round
}
try {
Pharmacie.geoNear(point, geoOptions, (err, result, stats) => {
if(err){
res.status(500, contentTypeJson).send(err);
}else if (result){
res.status(200, contentTypeJson).send(result);
} else if( stats ){
res.send(stats);
}
});
} catch (error) {
res.send(error);
}
}
PharmacieModel.js：
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const Product = require('./productModel');
const Coordinates = require('./coordinatesModel');
const coordinatesSchema = new Schema({
type : { //type of coordinate on the map (we are using geoJson, check geojson.org)
type: String, //type of data
default: "Point"
},
coordinates : {
type: [Number],//always set up this way : [long, latt]
index: "2dsphere" //type of point mapping (we are using geoJson, check geojson.org)
}
});
const pharmacieSchema = new Schema({
name: {type : String, required: true},
adress: {
nbr:Number,
street: String,
zipCode: Number,
city: String
},
turnover: Number,
trainingNeed: String,
productBought: [Product],
pharmacieCoordinates : coordinatesSchema
});
const Pharmacie = mongoose.model('pharmacie', pharmacieSchema);
module.exports = Pharmacie;