Simple File Manage Design by index.php

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<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Gallery;
use Auth;
use App\Activity;

class GalleryController extends Controller
{
    //
    public function __construct()
    {
        $this->middleware('auth');
    }
    public function index()
    {
        $galleries = Gallery::orderBy('id')->get();
        return view('cms.gallery',compact('galleries'));
    }
    public function store()
    {
        $data = request()->validate([
            'image'=>'required|image|mimes:jpeg,png,jpg,gif,svg|max:10048',
            'captions'=>'',
        ]);
        $url = request('image')->store('gallery','public');
        $create = Gallery::create([
            'image'=>$url,
            'captions'=>$data['captions']
        ]);
        if ($create) {
            $activity = new Activity();
            $activity->activity = 'Added a Gallery Image';
            $activity->user_id = Auth::user()->id;
            $activity->save();
            toast('Gallery Image Has Been Added','success','top-right');
        }
        else{
            toast('Sorry Something went wrong','warning','top-right');
        }
        return redirect()->back();
    }
    /**
     * Update
     */
    public function update()
    {
        $data = request()->validate([
            'id'=>'required',
            'image'=>'',
            'captions'=>''
        ]);
        $url = Gallery::findOrFail($data['id'])->image;
        if (isset($data['image'])) {
            request()->validate(["image"=>'required |image|mimes:jpeg,png,jpg,gif,svg|max:20048',]);
            $url = request('image')->store('gallery','public');
        }
        $update = Gallery::where('id',$data['id'])->update([
            'image'=>$url,
            'captions'=>$data['captions']
        ]);
        if ($update) {
            $activity = new Activity();
            $activity->activity = 'Updated Gallery Image';
            $activity->user_id = Auth::user()->id;
            $activity->save();
            toast('Gallery Image Has Been Updated','success','top-right');
        }
        else{
            toast('Sorry Something went wrong','warning','top-right');
        }
        return redirect()->back();
    }
    /**
     * Delete
     */
    public function delete($id)
    {
        $delete = Gallery::findOrFail($id)->delete();
        if ($delete) {
            $activity = new Activity();
            $activity->activity = 'Deleted Gallery Image';
            $activity->user_id = Auth::user()->id;
            $activity->save();
            toast('Gallery Image Has Been Deleted','info','top-right');   
        }
        else{
            toast('Sorry Something Went Wrong','warning','top-right');
        }
        return redirect()->back();
    }
}