我想使用laravel中的用户名或电子邮件更新登录名

Question

I have updated laravel default make:Auth to Login with both username and email. I just have override username function in

loginController.php to:

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

but got an error:

Method [property_exists] does not exist on [App\Http\Controllers\Auth\LoginController].

Answer 1

property_exists is a php function, not a method from some class. So, to improve this error, just rewrite your code:

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

Answer 2

property_exists — Checks if the object or class has a property

bool property_exists ( mixed $class , string $property )

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

Answer 3

The username() method in the LoginController refers to the username field name sent by the request. In your case I would imagine the field name is the same but what changes is whether you use that field to find an email or username. In that case you should be able to "trick" the user provider to do this by overriding the credentials method in your LoginController (and don't override the username function):

protected function credentials(Request $request)
{
    $v = \Validator::make($request->only($this->username()), [
         $this->username() => "email"
    ]);
    if ($v->passes()) {
        return [
           "email" => $request->input($this->username()),
           "password" => $request->input("password") 
       ]; 
    } else {
       return [
           "username" => $request->input($this->username()),
           "password" => $request->input("password") 
       ]; 
    }
}

This will be passed to the user provider which will select the user either by the email column or by the username column depending on what is passed.