允许在Laravel 5.4中使用用户名或电子邮件登录

Question

现在我已经按照Laravel文档介绍了如何在身份验证期间允许用户名,但它会丢失使用电子邮件的能力.我想允许用户使用他们的用户名或电子邮件登录.我该怎么做？

我已根据Laravel的文档将此代码添加到LoginController,它只允许用户名登录.我希望它接受用户名或电子邮件登录.

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

Answer 1

我认为更简单的方法是覆盖LoginController中的username方法:

public function username()
{
   $login = request()->input('login');
   $field = filter_var($login, FILTER_VALIDATE_EMAIL) ? 'email' : 'username';
   request()->merge([$field => $login]);
   return $field;
}

Answer 2

请按照以下链接中的说明操作:https://laravel.com/docs/5.4/authentication#authenticating-users

然后你可以检查这样的用户输入

$username = $request->username; //the input field has name='username' in form

if(filter_var($username, FILTER_VALIDATE_EMAIL)) {
    //user sent their email 
    Auth::attempt(['email' => $username, 'password' => $password]);
} else {
    //they sent their username instead 
    Auth::attempt(['username' => $username, 'password' => $password]);
}

//was any of those correct ?
if ( Auth::check() ) {
    //send them where they are going 
    return redirect()->intended('dashboard');
}

//Nope, something wrong during authentication 
return redirect()->back()->withErrors([
    'credentials' => 'Please, check your credentials'
]);

这只是一个样本.你可以采取无数种方法来实现同样的目标.

Answer 3

打开LoginController.php文件。

1. 添加此参考

   use Illuminate\Http\Request;
   

2. 并覆盖凭据方法

   protected function credentials(Request $request)
   {
       $field = filter_var($request->get($this->username()), FILTER_VALIDATE_EMAIL)
       ? 'email'
       : 'username';
   
       return [
           $field => $request->get($this->username()),
           'password' => $request->password,
       ];
   }
   

在Laravel 5.7.11中成功测试