danared

def load_data(collection, n=100):
    for i,d in load_data_file(n):
        collection.insert( d )

def get_data(collection, query={}):
    for d in collection.find(query):
        yield d

# Load the entire contents of the collection in memory.
elements = []

danared

"distance" : 45344411.211476855,
    	"path" : [
            	"North Pole",
            	"Tokyo",
            	"Osaka",
            	"Beijing",
            	"Shanghai",
            	"Guangzhou",
            	"Delhi",
            	"Mumbai",

danared

function visit ( path ) {
	// get last city visited
	var city = path.visited[ path.visited.length - 1 ];

	var paths = [];

	db.edges.find( { from: city } ).forEach (
    	function( edge ) {
        	// avoid cities I've already visited
        	if ( path.visited.indexOf( edge.dest ) == -1 ) {

danared

function Path(){
	this.distance = 0;
	this.visited =  [];
	this.clone = function() {
    	var newPath = new Path();
    	newPath.distance = this.distance;
    	for ( i in this.visited )
        	newPath.visited.push ( this.visited[i] );
    	return newPath;
	};

danared

{
    	"_id" : ObjectId("5676f18a66414e88e89a09c3"),
    	"from" : "Delhi",
    	"dest" : "Beijing",
    	"dist" : 3776477.26147437
}

danared

{"_id":"Beijing","population":1.952e+07,"location":{"type":"Point","coordinates":[116.383333,39.916667]}}
{"_id":"Delhi","population":2.4953e+07,"location":{"type":"Point","coordinates":[77.23,28.61]}}
{"_id":"Guangzhou","population":2.0597e+07,"location":{"type":"Point","coordinates":[113.266667,23.133333]}}
{"_id":"Mexico City","population":2.0843e+07,"location":{"type":"Point","coordinates":[-99.133333,19.433333]}}
{"_id":"Mumbai","population":2.0741e+07,"location":{"type":"Point","coordinates":[72.825833,18.975]}}
{"_id":"New York","population":1.8591e+07,"location":{"type":"Point","coordinates":[-74.0059,40.7127]}}
{"_id":"North Pole","population":1.0,"location":{"type":"Point","coordinates":[0.0,90.0]}}
{"_id":"Osaka","population":2.0123e+07,"location":{"type":"Point","coordinates":[135.502222, 34.693889]}}
{"_id":"Shanghai","population":2.2991e+07,"location":{"type":"Point","coordinates":[121.5,31.2]}}
{"_id":"São Paulo","population":2.0831e+07,"location":{"type":"Point","coordinates":[-46.633333,-23.5

danared

{
  name: "Norberto Leite"
  behaved: true
  presents: [{_id: "play_that_box_34432", ...}]
}

danared

db.children.aggregate( {"$match": { "behaved": true }}, 
{"$lookup": {  "from": "presents", "localField": "name", "foreignField": "present_for", "as":"presents"   }  })

danared

// presents collection
> db.presents.find()
{ 
  _id: "5535345_Maneki Neko",
  shape: "Round"
  receiver: "Shinobu Tsukasa",
  street: "〒東京都中央区 日本橋3-1-15, 1F",
  city: "Tokio"
  zip: "103-0027 - TK",
  geo: {

danared

// collection children 
> db.children.find()
{
 name: "Norberto Leite",
 behaved: true,
 note: "Deserves all the presents possible!"
}
{
 name: "Ze Pequeno",
 behaved: false,