1// import async to make control flow simplier
 2var async = require('async');
 3
 4// import the rest of the normal stuff
 5var mongoose = require('../../lib');
 6
 7require('./geoJSONSchema.js')();
 8
 9var Location = mongoose.model('Location');
10
11// define some dummy data
12// note: the type can be Point, LineString, or Polygon
13var data = [
14  {loc: {type: 'Point', coordinates: [-20.0, 5.0]}},
15  {loc: {type: 'Point', coordinates: [6.0, 10.0]}},
16  {loc: {type: 'Point', coordinates: [34.0, -50.0]}},
17  {loc: {type: 'Point', coordinates: [-100.0, 70.0]}},
18  {loc: {type: 'Point', coordinates: [38.0, 38.0]}}
19];
20
21
22mongoose.connect('mongodb://localhost/locations', function(err) {
23  if (err) {
24    throw err;
25  }
26
27  Location.on('index', function(err) {
28    if (err) {
29      throw err;
30    }
31    // create all of the dummy locations
32    async.each(data, function(item, cb) {
33      Location.create(item, cb);
34    }, function(err) {
35      if (err) {
36        throw err;
37      }
38      // create the location we want to search for
39      var coords = {type: 'Point', coordinates: [-5, 5]};
40      // search for it
41      Location.find({loc: {$near: coords}}).limit(1).exec(function(err, res) {
42        if (err) {
43          throw err;
44        }
45        console.log('Closest to %s is %s', JSON.stringify(coords), res);
46        cleanup();
47      });
48    });
49  });
50});
51
52function cleanup() {
53  Location.remove(function() {
54    mongoose.disconnect();
55  });
56}