ldc-volena/app/Http/Controllers/Bo/UploadController.php

<?php

namespace App\Http\Controllers\Bo;

use App\Http\Controllers\Controller;
use App\Http\Requests\Bo\UploadFileRequest;
use App\Lib\Helpers\FileStorageHelper;
use Illuminate\Database\Eloquent\Model;

class UploadController extends Controller
{
    /**
     * Upload a file sent in a request.
     * Used for picture upload in CKEditor.
     *
     * @param \App\Http\Requests\Bo\UploadFileRequest $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function uploadFile(UploadFileRequest $request)
    {
        $modelClass = "App\\Models\\$request->folder";

        if (!class_exists($modelClass) && !is_subclass_of($modelClass, Model::class)) {
            return response()->json(['error' => 'Invalid model class'], 404);
        }

        /** @var \Illuminate\Database\Eloquent\Model $model */
        $model = new $modelClass();

        /** @var \Illuminate\Http\UploadedFile $image */
        $image = $request->file('upload');

        $path = FileStorageHelper::storeFile($model, $image, true);

        return response()->json([
            'url' => "/{$path}"
        ]);
    }
}