createUser: function(req, res) {
        var _user = new Models.User(req.body);
        var _dateCreation = new Date();

        _user.password = crypto.createHash(_user.password);

        _user.dtCreate = _dateCreation;
        _user.dtUpdate = _dateCreation;

        for(var i=0; i<req.body.address.length; i++) {
            var _address = new Models.Address(req.body.address[i]);
            _address.save(function(err, addressData) {
                if (err) { res.status(500); res.send({'status': 'error', 'error' : err});  return; }
            });
            _user.address.push(addressData._id);
        }

        for (var i=0; i<req.body.contacts.length; i++) {
            var _contact = new Models.Contact(req.body.contacts[i]);
            _contact.save(function(err, contactData) {
                if (err) { res.status(500); res.send({'status': 'error', 'error' : err});  return; }

            });
            _user.contacts.push(_contact._id);
        }

        res.send(_user);
        return;

        _user.save(function(err, userData) {
            if (err) { res.status(500); res.send({'status': 'error', 'error' : err});  return; }
            res.send(userData);
            return;
        });
    },