add model in controller
use App\Article;

  // with pagination return
 $articles = Article::latest()->paginate(5);
 return view('articles.index',compact('articles'))
        ->with('i', (request()->input('page', 1) - 1) * 5);

// for validation
request()->validate([
        'title' => 'required',
        'body' => 'required',
    ]);

    // create with succusee
    Article::create($request->all());
    return redirect()->route('articles.index')
                    ->with('success','Article created successfully');

   //  Update with message
   Article::find($id)->update($request->all());
    return redirect()->route('articles.index')
                    ->with('success','Article updated successfully');

  // Delete with message
  Article::find($id)->delete();
    return redirect()->route('articles.index')
                    ->with('success','Article deleted successfully');


  for model add

protected $guarded = ['_token'];
public $timestamps = false;
//protected $fillable = ['title', 'body' ];