How to denote a Request Facade by a variable in Laravel? - laravel-6

Question

I am doing some experiment to make my controllers as much dynamic as I can. Let me give you a brief overview. I have a controller Logo Controller which I have set up like this:
use App\Models\Logo;
class LogoController extends Controller
{
public function add(Request $request)
{
$data['entity'] = 'logo';
$newEntityObj = new Logo;
$newEntityObj->title = $title; // set title
$newEntityObj->type = $type; // set type
$saveNewEntityData = $newEntityObj->save(); // save the entity data
------------------
-------------------
}
}
Now I made some changes like:
using a variable to denote the Logo Model.
$modelClass = "App\\Models\\" . ucfirst($data['entity']);
And then, using the $modelClass variable to execution Eloquent actions on it, like this:-
$newEntityObj = new $modelClass;
$newEntityObj->title = $title; // set title
$newEntityObj->type = $type; // set type
$saveNewEntityData = $newEntityObj->save(); // save the entity data
So the Logo Controller Class has been updated to:
use App\Models\Logo;
class LogoController extends Controller
{
public function add(Request $request)
{
$data['entity'] = 'logo';
$modelClass = "App\\Models\\" . ucfirst($data['entity']);
$newEntityObj = new $modelClass;
$newEntityObj->title = $title; // set title
$newEntityObj->type = $type; // set type
$saveNewEntityData = $newEntityObj->save(); // save the entity data
------------------
-------------------
}
}
Now I have created a Validationb Request File to use it for form validation. I am using it like this:
// Request Validation Inclusion //
use App\Http\Requests\AdminRequests\LogoValidation\LogoRequest;
public function add(LogoRequest $request)
{
--------------------------
--------------------------
}
Now instead of writing public function add(LogoRequest $request) I want to make it more dynamic. Something like this:
class LogoController extends Controller
{
public static $classEntity = 'logo';
public static $classFormattedEntity = null;
public static $classRequestVariable = null;
public function __construct()
{
$entityArray = explode('-', str_replace('_', '-', self::$classEntity));
foreach($entityArray as $keyEntity => $rowEntity)
{
if($keyEntity !== 0)
$entityArray[$keyEntity] = ucfirst($rowEntity);
}
self::$classFormattedEntity = implode('', $entityArray);
self::$classRequestVariable = "App\\Http\\Requests\\AdminRequests\\" . ucfirst(self::$classFormattedEntity) . "Validation\\" . ucfirst(self::$classFormattedEntity) . "Request";
}
public function add(self::$classRequestVariable $request)
{
..............................
..............................
}
}
The variable self::$classRequestVariable actually prints App\Http\Requests\AdminRequests\LogoValidation\LogoRequest
But when I am writing public function add(self::$classRequestVariable $request) instead of public function add(LogoRequest $request) I am getting the following error: