Question

我想在laravel中实现我自己的auth系统而不是默认设置，所以我正在浏览 THIS 教程。它使用了laravel-4，所以显然有些代码会改变。下面是用户身份验证的代码片段，请参见下文：

// app/controllers/HomeController.php<


public function doLogin() {
// validate the info, create rules for the inputs
$rules = array(
    'email'    => 'required|email', // make sure the email is an actual email
    'password' => 'required|alphaNum|min:3' // password can only be alphanumeric and has to be greater than 3 characters
);

// run the validation rules on the inputs from the form
$validator = Validator::make(Input::all(), $rules);

// if the validator fails, redirect back to the form
if ($validator->fails()) {
    return Redirect::to('login')
        ->withErrors($validator) // send back all errors to the login form
        ->withInput(Input::except('password')); // send back the input (not the password) so that we can repopulate the form
} else {

        // create our user data for the authentication
        $userdata = array(
            'email'     => Input::get('email'),
            'password'  => Input::get('password')
        );

        // attempt to do the login
        if (Auth::attempt($userdata)) {

            // validation successful!
            // redirect them to the secure section or whatever
            // return Redirect::to('secure');
            // for now we'll just echo success (even though echoing in a controller is bad)
            echo 'SUCCESS!';

        } else {        

            // validation not successful, send back to form 
            return Redirect::to('login');

        }
    }
}

我不太了解以下代码行：

if (Auth::attempt($userdata)) {

Auth类如何知道要查找哪个表并比较数据？另外它如何知道要比较哪些字段？这有点令人困惑。有人可以解释一下吗？

auth课程的 INTRO 非常有助于我了解Auth课程的工作原理，但我仍然无法回答上述问题。< / p>

Answer 1

Laravel通过config/auth.php了解它，你应该在Laravel 4中有这样的东西：

/*
    |--------------------------------------------------------------------------
    | Authentication Model
    |--------------------------------------------------------------------------
    |
    | When using the "Eloquent" authentication driver, we need to know which
    | Eloquent model should be used to retrieve your users. Of course, it
    | is often just the "User" model but you may use whatever you like.
    |
    */

    'model' => 'User',

    /*
    |--------------------------------------------------------------------------
    | Authentication Table
    |--------------------------------------------------------------------------
    |
    | When using the "Database" authentication driver, we need to know which
    | table should be used to retrieve your users. We have chosen a basic
    | default value but you may easily change it to any table you like.
    |
    */

    'table' => 'users',

用户名是硬编码的，但是，如果需要，您应该可以通过将此方法添加到用户模型来进行更改：

public function username()
{
    return 'username';
}

Answer 2

Laravel知道所有，因为列名（电子邮件和密码）和表名（用户）是hardcoded，Laravel默认使用这些名称。

Answer 3

在Laravel 5中，您应该在以下部分的config / auth.php文件中设置auth表：

'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => App\Models\UserModel::class,
        ],

        // 'users' => [
        //     'driver' => 'database',
        //     'table' => 'users',
        // ],
    ],

如您所见，您可以设置数据库的表格甚至是模型。

至于auth字段，默认情况下有姓名，电子邮件和密码。如果要使用自定义字段，则应在使用Illuminate \ Foundation \ Auth \ AuthenticatesUsers的任何类中重新声明标准方法：

protected function credentials(Request $request)
{
    return $request->only($this->username(), 'password');
}

public function username()
{
    return 'email';
}

laravel中的Auth类如何知道哪个表要比较数据？以及要检查哪些字段？

3 个答案: