BehaviorMonitor/database/db.js

/**
 * Created by root on 2015-07-20.
 */
var MongoClient = require('mongodb').MongoClient
    , assert = require('assert');

var database;

// Connection URL
var url = 'mongodb://localhost:27017/Behavior';
// Use connect method to connect to the Server


module.exports.active = function(callback){
    MongoClient.connect(url, function(err, db) {
        if (!err){
            console.log("Connected correctly to server");
            database = db;
        }
        callback(err);
    });
};

module.exports.getCollection = function(name, callback){
    if (!database && !database.connected)
        callback(database.collection(name));

    database.collection(name, {strict:true}, function(err, collection) {
        if (!err)
            callback(err, collection);
        else{
            // Create the collection
            database.createCollection(name, function(err, result) {
                // Retry to get the collection, should work as it's now created
                if (!err)
                    database.collection(name, {strict:true}, callback);
            });
        }
    });

};