public function validateRequest() {
    return request()->validate([
        'title' => 'required|max:255',
        'text' => 'nullable',
        'category_id' => 'required|integer',
        'user_id' => 'required|integer',
        
        'image' => 'sometimes|file|image|max:1999',

    ]);
}


public function store() {
    $news = News::create($this->validateRequest());
    $this->storeImage($news);

    Session::flash('success', 'News saved');
    return redirect()->route('news.index');
}