mongo进行$ near查找时出现范围错误

Question

Experiencing a weird error with mongo doing a $near lookup. The DB just goes crazy and spits our a range error.

This code snippet below works perfectly fine

mongoose.models.Users.findOne({_id: req.user.id}, function(err, loggedin) {
    var location = JSON.parse(JSON.stringify(loggedin.location));
    mongoose.models.Users.find({
      location: { $near: { $geometry: location } },
    }, (err, users) => {

    })
})

However, if I tallk out the JSON.parse(JSON.stringify()) clone it freaks out

mongoose.models.Users.findOne({_id: req.user.id}, function(err, loggedin) {
    var location = loggedin.location;
    mongoose.models.Users.find({
      location: { $near: { $geometry: location } },
    }, (err, users) => {

    })
})

Using mongoose as you see but that shouldnt effect this query. There must be something extra in location that I cant see but I cant find it.

If I console.log loggedin.location immediately after the DB query I get this:

location: { type: 'Point', coordinates: [ -118.3141928, 34.0806176 ] },

I've also set a debug breakpoint and get the same thing

One other fact thats interesting to note, if I execute the findOne query with lean() so it only returns plain JSON then the second query works perfectly. I'm wondering if theres some getter that is called by mongoose when accessing a geoJSON property.

My Mongoose schema is set up like so

const UserSchema = new Schema({
  location: {
    type: { type: String },
    coordinates: [],
  },
})
userSchema.index({ location: '2dsphere' });

Attempted to try this without the extra assignment as well running the query simply as

location: { $near: { $geometry: loggedin.location } },

But got the same error.

Another interesting fact is if I drop into the native client with mongoose.models.Users.collection and execute my query I don't receive the error at all.

Sample gist with mongo shell output and native query

Answer 1

Try out through this code

 $geoNear: {
            near: {type: "Point", coordinates:[parseFloat(req.query.latitude), parseFloat(req.query.longitude )]},
            distanceField: "dist.calculated",
            maxDistance:10000,
            spherical: true
        }