如何在Laravel中动态设置模型的连接属性？

Question

I have a Laravel 5.1 App and I can dynamically set the connection property of a model doing this:

class Config extends Model {

public function __construct() {
    $this->connection = Session::get('conn') or abort(500, 'No conn');
}

protected $table = 'config';
}

But in Laravel 5.3+ we are not able to access the session in constructors methods without having to hack the framework.

What is the best/recommended way to do this on a model?

UPDATE: This code actually works, my problem was at the Controller level not the Model.

Answer 1

使用全局会话帮助器

 $this->connection = session('conn') or abort(500, 'No conn');

Answer 2

It works perfectly.

Using facade

Import

use Illuminate\Support\Facades\Session;

and then you can call like

public function __construct() {
    $this->connection = Session::get('conn') or abort(500, 'No conn');
}

Using helper function

public function __construct() {
    $this->connection = session('conn') or abort(500, 'No conn');
}