Laravel身份验证 - 不同表格中的电子邮件

Question

我有两张桌子：

人数：

id   name   email   phone   person_type_id

用户

id   person_id  password role_id etc...

您能否告诉我如何使用Laravel（5.8）内置的身份验证系统在对用户进行身份验证时使用人员表中的电子邮件字段？仅供参考，守卫提供者的价值必须是用户。

Answer 1

您可以创建自定义用户提供程序（继承自Illuminate\Auth\EloquentUserProvider）并覆盖retrieveByCredentials方法。

见Laravel Docs - The User Provider Contract

Answer 2

@ Thomas的建议帮助我解决了这个问题。万一它可以帮助任何人，这是我的代码：

我创建了CustomUserProvider.php

<?php

namespace App\Providers;
use Illuminate\Support\Str;
use Illuminate\Auth\EloquentUserProvider;
use Illuminate\Contracts\Hashing\Hasher as HasherContract;

class CustomUserProvider extends EloquentUserProvider { 

private $method_to_email_model;

public function __construct(HasherContract $hasher, $model, $method_to_email_model)
{

    parent::__construct($hasher, $model);

    $this->method_to_email_model = $method_to_email_model;
}

public function retrieveByCredentials(array $credentials)
{

    if (empty($credentials) ||
       (count($credentials) === 1 &&
        array_key_exists('password', $credentials))) {
        return;
    }

    $query = $this->createModel()->newQuery();

    foreach ($credentials as $key => $value) 
    {
        if (Str::contains($key, 'password')) {
            continue;
        }

        if (is_array($value) || $value instanceof Arrayable) {

            $query->with([$this->method_to_email_model => function($q) use($key, $value){
                $q->whereIn($key, $value);
            }]);

        } else {


            $query->with([$this->method_to_email_model => function($q) use($key, $value){
                $q->where($key, $value);
            }]);
        }
    }

    return $query->first();
 }   

}

然后在App \ Providers \ AuthServiceProvider.php文件中，内部启动函数：

Auth::provider('custom_user_provider', function ($app, array $config) {
    return new CustomUserProvider($app['hash'], $config['model'], $config['method_to_email_model']);
});

在config / auth.php里面

 'providers' => [ 
    'users' => [
        'driver'                => 'custom_user_provider',
        'model'                 => App\User::class,
        'method_to_email_model' => 'person',
    ],
  ],

最后在App \ User.php（用户模型）

protected $appends = [
    'email', 'first_name', 'last_name'
 ];

public function person()
{
    return $this->belongsTo(Person::class, 'person_id', 'id');
}

public function getEmailAttribute()
{
    return $this->person->getAttribute('email');
}

public function getFirstNameAttribute()
{
    return $this->person->getAttribute('first_name');
}

public function getLastNameAttribute()
{
    return $this->person->getAttribute('last_name');
}