mongoose schema geojson example

mongooseGeoJsonSchema

mongoose = require('mongoose')
Schema = mongoose.Schema
assert = require('assert')
console.log '\n==========='
console.log ' mongoose version: %s', mongoose.version
console.log '========\n\n'
dbname = 'testing_geojsonPoint3'
mongoose.connect 'localhost', dbname
mongoose.connection.on 'error', ->
  console.error 'connection error', arguments
  return
# schema
schema = new Schema({
  message: String
  loc:
    type: type: String
    coordinates: []
}, capped: 1024)
schema.index loc: '2dsphere'
A = mongoose.model('A', schema)
mongoose.connection.on 'open', ->
  A.on 'index', (err) ->
    if err
      throw err
    A.create {
      message: 'message'
      loc:
        type: 'Point'
        coordinates: [
          -179.0
          0.0
        ]
    }, (err) ->
      if err
        throw err
      tail = A.find(loc: $near:
        type: 'Point'
        coordinates: [
          -179.0
          0.0
        ]).tailable().stream()
      tail.on 'data', (d) ->
        console.log d
        return
      return
    return
  return
setTimeout (->
  new A(
    message: 'close'
    loc:
      type: 'Point'
      coordinates: [
        -179.0
        0.0
      ]).save (e, doc) ->
    if e
      throw e
    console.log 'saved'
    return
  console.log 'timeout'
  return
), 2000