آپلود تک عکس در لاراول

دوستان کدی که نوشتم برای اپلود تک عکس هست که مشکل خیلی ها در لاراول بود (از کامنت های دوره فهمیدم...)
راه حلش رو میزارم امیدوارم مشکلتون حل بشه :)
AdminController :

<?php

namespace AppHttpControllersAdmin;

use CarbonCarbon;
use IlluminateHttpRequest;
use AppHttpControllersController;

class AdminController extends Controller
{
    protected function uploadImages($file)
    {
        $year = Carbon::now()->year;
        $filename = date('Y_m_d') . '_' . $file->getClientOriginalName();
        $destination = "/uploads/images/{$year}";
        $destinationPath = public_path($destination);
        $file->move($destinationPath , $filename);
        return $destination . '/'. $filename;

    }

}

CategoryController :

<?php

namespace AppHttpControllersAdmin;

use AppCategory;
use AppHttpRequestsCategoryRequest;
use IlluminateHttpRequest;
use AppHttpControllersController;

class CategoryController extends AdminController
{
    /**
     * Display a listing of the resource.
     *
     * @return IlluminateHttpResponse
     */
    public function index()
    {
        $categories = Category::latest()->paginate(20);
        return view('admin.categories.all' , compact('categories'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return IlluminateHttpResponse
     */
    public function create()
    {
        return view('admin.categories.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param CategoryRequest|Request $request
     * @return IlluminateHttpResponse
     */
    public function store(CategoryRequest $request)
    {
    $coverUrl =  $this->uploadImage($request->file('cover'));
     Category::create(array_merge($request->all() , ['cover' => $coverUrl]));

    return redirect(route('categories.index'));

    }

    /**
     * Update the specified resource in storage.
     *
     * @param  IlluminateHttpRequest  $request
     * @param  AppCategory  $category
     * @return IlluminateHttpResponse
     */
    public function update(Request $request, Category $category)
    {
       $coverUrl = $request->file('cover');
        $input = $request->all();
        if ($coverUrl){
            $input ['cover'] = $this->genreUploadImage($request->file('cover'));
        }else{
            $input ['cover'] = $genre->cover;
        }

        $category->update($input);
        return redirect(route('categories.index'));
    }

}