在laravel 5中验证用户之前更改数据库连接

I want to manually authenticate a user in Laravel 5. My application uses 2 databases, which are located on the same server. In my application i already switch connections in the models or query builder, which works perfect.

But now i want to use laravels Auth::attempt method to login a user. But the credentials for this user are stored in the second database.

In the user model i have: protected $connection = 'first_database'; This is the database it normally should use. But for this 'special' login, i want the user model to use the second_database.

Is this possible?

What i tried:

     \Config::set('database.default', 'second_database');

    // Login this user while using the second_database
    if(\Auth::attempt(['email'=>\Request::get('email'), 'password'=>\Request::get('password')]))
    {
        dd('Success');
    }

But unfortunately, this doesn't work. I`m using Laravel 5.1

Notice that you can do the following to attempt an authentication:

$this->guard()->attempt([ 'email' => \Request::get('email'), 'password' => \Request::get('password'), ]);

And in a nutshell, your solution will need to utilize the guard() part:

$this->guard('my-second-database-guard')->attempt([ 'email'=>\Request::get('email'), 'password'=>\Request::get('password') ]);

The steps:

If you take a look at auth.php you will notice 'provider', and where does provider comes from?

'guards' => [
    'web' => [
        'driver' => 'session',
        'provider' => 'users',
    ],
],

Provider comes in this section, same auth.php:

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

So, we could add another User class that utilizes a different connection and use it as a provider for our guard.

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

    'master-users' => [
        'driver' => 'eloquent',
        'model' => App\Master\Models\User::class,
    ],
]

And in the guards section:

    'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],

        'master-web' => [
            'driver' => 'session',
            'provider' => 'master-users',
        ],
    ],

Of course, we have to duplicate the User class:

<?php

namespace App\Master\Models;

use App\Models\User as UserClass;

class User extends UserClass
{
     protected $connection = 'second_database';

    /**
     * Get the guard to be used during authentication.
     *
     * @return \Illuminate\Contracts\Auth\StatefulGuard
     */
    protected function guard()
    {
        return Auth::guard('master-web')
    }
}

And then we can attempt to authenticate the users like:

$this->guard('master-web')->attempt([ 'email' => \Request::get('email'), 'password' => \Request::get('password'), ]);