run migration
/migrations/db.sql
$db = new \App\Core\DB('localhost', 'testbase', 'root', 'root');
$categoryRepository = new CategoryRepository($db);
$category = $categoryRepository->create('Категория подарки');
$newsRepository = new NewsRepository($db);
$article = $newsRepository->create($category, 'Привет мир!');
$user = new UserRepository($db);
$user->create('[email protected]');
$newsRepository->like($article, $user);