如何在没有命名空间的情况下加载 Laravel 6 model 类

Question

I am new to Laravel and I was working on Laravel 4. I am trying to migrate to Laravel 6 on docker and I have the basic setup and Laravel project is up.

I created a table and a respective Eloquent Model in the models folder. I am able to read the data in a controller.

namespace App\Http\Controllers;

use mysql_xdevapi\Exception;
use  App\Models\Card;

class welcomeController {
    public function show() {
        try {
            $cards = Card::all();
        } catch (\Exception $e) {
            die("Could not connect - " . $e );
        }

        print_r($cards); exit;
    }
}

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Card extends Model
{

}

In the older version of Laravel project, the 'Card::all()' was working without using USE command to import it.

I know namespaces are important, but wondering how it worked and how I can make replicate the same.

Answer 1

I do not know why you want to discard using namespaces, If you want to NOT use namespaces for your models, edit your composer.json like below

 "autoload": { "psr-4": { "App\\\\": "app/" }, "classmap": [ "database/seeds", "database/factories", "models" ] },

Make a directory in your root directory and add a new file ie 'models/Card.php'.

below should be the content of your Card.php

 <?php use \\Illuminate\\Database\\Eloquent\\Model; class Card extends Model { //database table here protected $table = "cards"; //Fillables protected $fillable = []; }

And in your controller WelcomeController

 <?php namespace App\\Http\\Controllers; use mysql_xdevapi\\Exception; class welcomeController { public function show() { try { $cards = \\Card::all(); } catch (\\Exception $e) { die("Could not connect - " . $e ); } print_r($cards); exit; } }

Do not forget the forward slash in your card model ie '\\Card::all()'

Make sure to move your models folder outside the app directory, Kindly note this is not php best practice

Answer 2

namespaces are just one of php worst feature. we had hardly got rid of the need to add 'include' or 'require' statements everywhere (thanks to autoloader) that now we have to add 'use' statements... Silly, especially on french keyboards where it takes one minute to reach the backslash key. Think about it: namespace are originally here for avoiding class names duplicates (which never occurred to me in more 25 years of programming of c++ and php)...