var createUser = function (req, res, next) {
  var user = new User(req.body);

  user.save(function (err) {
    if (err) {
      next(err);
    } else {
      res.json(user);
    }
  });
};

var updateUser = function (req, res, next) {
  User.findByIdAndUpdate(req.body._id, req.body, {new: true}, function (err, user) {
    if (err) {
      next(err);
    } else {
      res.json(user);
    }
  });
};

var deleteUser = function (req, res, next) {
  req.user.remove(function (err) {
    if (err) {
      next(err);
    } else {
      res.json(req.user);
    }
  });
};

var getAllUsers = function (req, res, next) {
  User.find(function (err, users) {
    if (err) {
      next(err);
    } else {
      res.json(users);
    }
  });
};

var getOneUser = function (req, res) {
  res.json(req.user);
};

var getByIdUser = function (req, res, next, id) {
  User.findOne({_id: id}, function (err, user) {
    if (err) {
      next(err);
    } else {
      req.user = user;
      next();
    }
  });
};