如何在Laravel中将另一个数据库与模型连接

Question

I am able to connect with another database like this

DB::connection('connection_2')->table("users")->get();

But this code is not working

User::connection('connection_2')->get();

Answer 1

You need to set the $connection property of your model like so:

class MyModel extends Eloquent {
    protected $connection = 'connection_2';
}

Answer 2

Add in database.php:

'main' => [
    'driver' => 'mysql',
    'host' => env('DB_HOST', 'localhost'),
    'database' => env('DB_MAIN', 'forge'),
    'username' => env('DB_USERNAME', 'forge'),
    'password' => env('DB_PASSWORD', ''),
    'charset' => 'utf8',
    'collation' => 'utf8_unicode_ci',
    'prefix' => '',
    'strict' => false
],
'admin' => [
    'driver' => 'mysql',
    'host' => env('DB_HOST', 'localhost'),
    'database' => env('DB_ADMIN', 'forge'),
    'username' => env('DB_USERNAME', 'forge'),
    'password' => env('DB_PASSWORD', ''),
    'charset' => 'utf8',
    'collation' => 'utf8_unicode_ci',
    'prefix' => '',
    'strict' => false
]

Then use:

DB::connection('main')->table("users")->get();
DB::connection('admin')->table("users")->get();

In your User.php model:

class User extends Model
{
    protected $connection = 'main';
    protected $table = 'users';
    protected $fillable = [
       'id','name'
    ];
}

Then use:

User::get();