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我对 mongodb geonear 聚合查询感到沮丧，对于每个响应，我都会收到如下错误：

{"name":"MongoError","message":"geoNear command failed: { ok: 0.0, errmsg: \"error processing query: ns=Lab.assoprofiles limit=100Tree: GEONEAR  field=loc maxdist=50000 isNearSphere=1\nSort: {}\nProj: { $pt: { $meta: \"geoNearPoin...\", code: 2, codeName: \"BadValue\" }","ok":0,"errmsg":"geoNear command failed: { ok: 0.0, errmsg: \"error processing query: ns=Lab.assoprofiles limit=100Tree: GEONEAR  field=loc maxdist=50000 isNearSphere=1\nSort: {}\nProj: { $pt: { $meta: \"geoNearPoin...\", code: 2, codeName: \"BadValue\" }","code":16604,"codeName":"Location16604"}

这就是我设计该系列的方式：

const mongoose = require("mongoose");
var Schema = mongoose.Schema;

var AssoSchema = new mongoose.Schema({
   userId:{ type: mongoose.Schema.Types.ObjectId, ref: "User"},
   picture : String,
   telephone: {
      type: String,
      unique: false
   },
   loc: {
      type: [Number], // [<longitude>, <latitude>]
      index: "2d" // create the geospatial index
   },

},{timestamps: true})

var Asso = mongoose.model('AssoProfile', AssoSchema);
module.exports = Asso;

查询是这样的：

const latitude = parseFloat(req.body.latitude);
const longitude = parseFloat(req.body.longitude);
AssoProfile.aggregate([
     {
        $geoNear: {
           near: { type: 'Point', coordinates: [latitude, longitude] },
           spherical: true, distanceField: 'distance', maxDistance:7000,
        }
     }

   ], function(err, l ){
      console.log(JSON.stringify(err));
      console.log(l);
   })

我不明白为什么这么简单的查询会引发这个错误。感谢您的帮助。

4

1 回答 1

1

我已经运行了您在上面发布的相同代码，但它对我不起作用......而且我认为 index: 2d这不是猫鼬模型中的一个选项。相反，我创建了这样的索引并为我工作。

const mongoose = require("mongoose")
var Schema = mongoose.Schema

var AssoSchema = new mongoose.Schema({
   userId: { type: mongoose.Schema.Types.ObjectId, ref: "User" },
   picture : String,
   telephone: {
      type: String,
      unique: false
   },
   loc: Array,

}, { timestamps: true })


AssoSchema.index({ 'loc': '2dsphere' })

var Asso = mongoose.model('AssoProfile', AssoSchema)
module.exports = Asso;
于 2018-08-13T10:49:47.783 回答