App\Http\Requests\PostRequest::rules PHP Method

    public function rules()
    {
        return ['title' => 'required|max:255', 'slug' => 'required|max:255|unique:posts,slug', 'summary' => 'required', 'origin' => 'required', 'category' => 'required|max:255', 'tags' => 'tags'];
    }