用户注册类 [英] A user registration class

问题描述

我在PHP中写这个，但是，一般来说，用户（注册？）类有什么方法和属性？我知道我可以使用PEB中的MDB2进行数据库抽象，我可以想到的一个特性是确保用户名是有效的。

I'm writing this in PHP, but, generally speaking, what methods and properties would a user (registration?) class have? I know I can use MDB2 from PEAR for database abstraction, and one feature I can think of is making sure the username is valid.

$user->validateUserName($username, $regex);

任何人都可以想起来吗？

Can anybody think of any more?

感谢。

编辑：

用户名验证自己的权利（Validator类或某事）？

Username validation would be a class of its own right (Validator class or something)?

推荐答案

不应该有这样的类。注册是接收数据，验证数据，最后，如果验证成功，处理验证的数据的整个过程。换句话说：注册是使用一些对象来解决给定问题的代码部分。

There shouldn't be a such class at all. Registration is a whole process of receiving data, validating that data and finally, processing validated data if validation succeed. In other words: registration is that part of code which uses some object to solve a given problem.

你需要什么？

1. 代表单个用户的对象。


2. User 对象并保存它。


3. 一些验证机制（至少会使用几个对象）。

1. An object that represents a single user.
2. An object that takes User object and saves it.
3. Some validation mechanism (it will use at least several objects).

让我们设计一个接口。我们将如何使用我们要编写的代码？

Let's design an interface. How will we use the code we're going to write?

try {
    $validator = new Validator($_POST);
    $validator->addRules(array(
        'username' => new LengthValidator(array('min' => 3, 'max' => 15)),
        'password' => array(
            new LengthValidator(array('min' => 6))
            new RegexpValidator(array('pattern' => '#...#'))
        ),
        'email'    => array(
            new EmailValidator(),
            new UniqueValidator(....)
         )
    ));

    $data = $validator->validate();

    $userService = new UserService($databaseHandler, $someOtherArguments);

    $user = new User();
    $user->setUsername($data['username']);
    $user->setPassword($data['password']);
    $user->setEmail($data['email']);
    $user->setFirstname($data['firstname']);
    $user->setLastname($data['lastname']);

    $userService->save($user);
} catch (ValidationException $ve) {
   // validation failed
}

$ b b

这当然只是一个例子 - 它可以完全不同的方式设计。

That's of course only an example - it can be designed totally different way.

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