<?php

namespace App\Components;

use Nette\Application\UI\Form;
class ArticleMenu extends \Nette\Application\UI\Control  {



/** @var Articles */
private $articles;
/** @var string */
public $categoryID;


/**
* @param Articles $articles
 * @param string $categoryID
*/
public function __construct($categoryID, \App\Model\Articles $articles) {
    parent::__construct();
    $this->articles = $articles;
    $this->categoryID = $categoryID;


}

    protected function createComponentArticleMenu() {

     $form = new Form();

     $form->addSelect('category','Kategorie', $this->articles->getArticleCategories()->fetchPairs('id', 'name'))
    ->setPrompt('Všechny články');
     $form->addSubmit('submit', 'Zobrazit');
     return $form;
}

    public function articleMenuSuceeded($form, $categoryID) {


    $this->articles = !empty($categoryID) ?
     $this->articles->getByCategoryId($categoryID) :
     $this->articles->fetchAll();
     $form->onSuccess[] = $this->articleMenuSuceeded;
     $this->redirect('this', ['categoryID' => $form->values->category]);


    }

    public function render() {


    $this['articleMenu']->render();


    }
}

interface IArticleMenuFactory {
        /**
     * @param string $categoryID
     * @return ArticleMenu
     */
    function create($categoryID);
}

<?php



namespace App\Model;

/**
 * Description of Articles
 *
 * @author Freestyler
 */
class Articles extends Base {



    /*
     * Get all articles from db (limited to 10)
     */
    public function fetchAll() {
    return $this->database->table('articles')
            ->limit('10');
    }

    /**
     * Add article to db
     */
    public function addArticle() {


    }

    /**
     *
     * Get all categories
     */
    public function getArticleCategories() {

    return $this->database->table('categories');

    }
    /*
     * Get specific article based on category_id
     */

    public function getArticleByCategoryId($categoryID) {

    return $this->database->table('articles')
            ->where('categories_id', $categoryID);

   }


}
config.neon
#
# SECURITY WARNING: it is CRITICAL that this file & directory are NOT accessible directly via a web browser!
#
# If you don't protect this directory from direct web access, anybody will be able to see your passwords.
# http://nette.org/security-warning
#
parameters:


php:
    date.timezone: Europe/Prague
    # zlib.output_compression: yes


nette:
    application:
        errorPresenter: Error
        mapping:


    session:
        expiration: 14 days


services:

    authenticator: App\Model\Authenticate
    - App\RouterFactory
    - App\Model\Articles
    -
    implement: IArticleMenuFactory
    parameters: [categoryID]
    arguments: [%categoryID%]
    router: @App\RouterFactory::createRouter

<?php

namespace AdminModule;



/**
 * Homepage presenter.
 */
class HomepagePresenter extends BasePresenter
{

    /**
     * @var App\Components\IArticleMenuFactory
     * @inject
     */

    public $articleMenuFactory;

    protected function createComponentArticleMenu()
    {
    return $this->articleMenuFactory->create();

    }
    /**
      * Fetch all articles to table
      */
    public function beforeRender() {

        $this->template->articles = $this->articles->fetchAll();

    }

    }