Example of an existing legacy Javascript object we want to port to Go.

gopherjsModelOriginal.js

// User Type
function User(name, id) {
  this.name = name;
  this.id = id;
  
  this.save = function () {
    DB.query('UPDATE User SET name = ? WHERE id = ?', this.name, this.id);
  }
}

// Factory for creating a new user
User.new = function (name) {
  DB.query('INSERT INTO User (name) VALUES (?)', name);
  var id = DB.query('SELECT @@IDENTITY').nextRow()[0];
  return new User(name, id);
};

// Retrieves a user from the database
User.get = function (id) {
  var result = DB.query('SELECT name FROM User WHERE id = ?', id);
  if (result.rowCount === 0) {
    return null;
  }
  var name = result.nextRow()[0];
  return new User(name, id);
};

// Retrieves all users from the database
User.all = function () {
  var users = [];
  var result = DB.query('SELECT name, id FROM User');
  for (var x = 0; x < result.rowCount; x++) {
    var row = result.nextRow();
    users.push(new User(row[0], row[1]));
  }
  return users;
};

// Use case that still needs to use this model
function myHttpHandler(request) {
  if (request.method === 'GET') {
    var id = request.params['userid'];
    if (id) {
      return User.get(id);
    } else {
      return User.all();
    }
  } else if (request.method === 'POST') {
    return User.new(request.params['name']);
  }
}