test.php

<?php
include'vendor/autoload.php';

$app = new Warehouse();
//$app->initLayout('Centered');
            //$app->db = new \atk4\data\Persistence_SQL('mysql:host=127.0.0.1;dbname=warehouse;charset=utf8', 'root', 'root');

$f = $app->layout->add(new ui\LineForm());
$f->setModel(new Line($app->db));

/*
$cr->addColumn(new \atk4\ui\TableColumn\Template('<a href="article.php?article_id={$id}"><i class="stack overflow icon"></i> {$name}: {$stock} in stock</a>'));

$cr->fieldsGrid = ['category', 'brand', 'name'];
$cr->setModel(new Article($app->db));


$cr->menu->addItem(new ui\Manager(['Brands', 'icon'=>'tag']))
    ->setModel(new Brand($app->db));

$cr->menu->addItem(new ui\Manager(['Categories', 'icon'=>'folder']))
    ->setModel(new Category($app->db));
 */