gistfile1.txt

<?php

namespace App\Controller;

use Cart\Model\Table\Cart;
use Cake\Network\Exception\NotFoundException;

class CartController extends AppController {

	public function index()
	{
		$cart = Cart::factory();

		$products = $cart->all();

		$this->set(['cart'=>$products]);
	}

	public function add($id=null) 
	{
		$this->loadModel('Products');
		$product = $this->Products->find('all',[
			'conditions'=>[
				'Products.id'=>$id
			]
		])->first();

		if (empty($product)) {
			throw new NotFoundException("Artefact not found - Artefato não encontrado");
		}

		$product->qtd = 1;
		$cart = Cart::factory();
		$cart->add($product->toArray());
		return $this->redirect(['action'=>'index']);

	}

}