Mongoose/MongoDb获取错误geoNear不是函数 [英] Mongoose/MongoDb getting error geoNear is not a function
问题描述
这是我的控制器文件locations.js
var mongoose = require('mongoose');
var Loc = mongoose.model('location');
module.exports.locationsListByDistance = function(req, res) {
var lng = parseFloat(req.query.lng);
var lat = parseFloat(req.query.lat);
var point = {
type: "Point",
coordinates: [lng, lat]
};
var geoOptions = {
spherical: true,
maxDistance: 1000
};
Loc.geoNear(point, geoOptions, function (err, results, stats) {
console.log(results);
});
};
我的模型文件的locations.js
var mongoose = require('mongoose');
var reviewSchema = new mongoose.Schema({
author: String,
rating: {
type: Number,
required: true,
min: 0,
max: 5
},
reviewText: String,
createdOn: {
type: Date,
"default": Date.now
}
});
var openingTimeSchema = new mongoose.Schema({
days: {
type: String,
required: true
},
opening: String,
closing: String,
closed: {
type: Boolean,
required: true
}
});
var locationSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
address: String,
rating: {
type: Number,
"default": 0,
min: 0,
max: 5
},
facilities: [String],
// Always store coordinates longitude, latitude order.
coords: {
type: [Number],
index: '2dsphere'
},
openingTimes: [openingTimeSchema],
reviews: [reviewSchema]
});
mongoose.model('location', locationSchema, 'locations');
每当我运行 http://localhost:3000/api/locations?lng = -0.9690884& lat = 51.455041 我收到错误geoNear不是函数
Whenever I run http://localhost:3000/api/locations?lng=-0.9690884&lat=51.455041 I get error geoNear is not a function
TypeError:Loc.geoNear不是函数 在module.exports.locationsListByDistance(/home/shackers/Projects/mean/loc8r/app_api/controllers/locations.js:51:7) 在Layer.handle [作为handle_request](/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) 在下一个(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/route.js:137:13) 在Route.dispatch(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/route.js:112:3) 在Layer.handle [作为handle_request](/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) 在/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:281:22 在Function.process_params(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:335:12) 在下一个(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:275:10) 在Function.handle(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:174:3) 在路由器上(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:47:12) 在Layer.handle [作为handle_request](/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) 在trim_prefix(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:317:13) 在/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:284:7 在Function.process_params(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:335:12) 在下一个(/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:275:10) 在/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:635:15
TypeError: Loc.geoNear is not a function at module.exports.locationsListByDistance (/home/shackers/Projects/mean/loc8r/app_api/controllers/locations.js:51:7) at Layer.handle [as handle_request] (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) at next (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/route.js:137:13) at Route.dispatch (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/route.js:112:3) at Layer.handle [as handle_request] (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) at /home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:281:22 at Function.process_params (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:335:12) at next (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:275:10) at Function.handle (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:174:3) at router (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:47:12) at Layer.handle [as handle_request] (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/layer.js:95:5) at trim_prefix (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:317:13) at /home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:284:7 at Function.process_params (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:335:12) at next (/home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:275:10) at /home/shackers/Projects/mean/loc8r/node_modules/express/lib/router/index.js:635:15
这是我正在使用的依赖项版本:
- 节点:8.9.3 npm:5.5.1表达:4.15.5猫鼬:5.0.0 mongoDb:3.6.1
- node : 8.9.3 npm : 5.5.1 express : 4.15.5 mongoose : 5.0.0 mongoDb : 3.6.1
推荐答案
router.get('/', () => {
Loc.aggregate([
{
$geoNear: {
near: 'Point',
distanceField: "dist.calculated",
maxDistance: 100000,
spherical: true
}
}
]).then(function(err, results, next){
res.send();
}).catch(next);
});
参考:- https://docs.mongodb.com/manual/reference/命令/geoNear/
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