CakeCarts/src/Controller/CartItemsController.php

<?php
declare(strict_types=1);

namespace CakeCarts\Controller;

use Cake\Core\Configure;
use Cake\Datasource\Exception\RecordNotFoundException;
use Cake\Http\Client;
use Cake\Log\Log;
use CakeCarts\Controller\AppController;

/**
 * CartItems Controller
 *
 * @property \CakeCarts\Model\Table\CartItemsTable $CartItems
 * @property \Authorization\Controller\Component\AuthorizationComponent $Authorization
 */
class CartItemsController extends AppController
{
    public function initialize(): void
    {
        parent::initialize(); // TODO: Change the autogenerated stub

        $this->loadComponent('CakeCarts.ShoppingCart', [
            // This is default config. You can modify "actions" as needed to make
            // component work only for specified methods.
            'actions' => ['add'],
        ]);
        if ($this->components()->has('Authorization')) {
            $this->Authorization->skipAuthorization();
        }
    }

    /**
     * Add method
     *
     * @return \Cake\Http\Response|null|void Redirects on successful add, renders view otherwise.
     */
    public function add()
    {
        $this->request->allowMethod(['post', 'put', 'patch']);

        Log::debug(print_r('$this->request->getData()', true));
        Log::debug(print_r($this->request->getData(), true));
        $cart = $this->viewBuilder()->getVar('cart');
        $postData = $this->request->getData();
        $postData['cart_id'] = $cart->id;
        // get product skus with variants
        $price = $this->request->getData('price');
        $qty = $this->request->getData('qty', 1);
        $postData['price'] = $price;
        $postData['subtotal'] = isset($price) ? bcmul("$price", "$qty", 5) : null;

        $newCartItem = $this->CartItems->newEntity($postData, [
            'validate' => Configure::readOrFail('CakeCarts.CartItems.requirePricing') ? 'requirePricing' : 'default',
        ]);

        if ($this->CartItems->save($newCartItem)) {
            $this->Flash->success('Added to cart');

            return $this->redirect($this->referer([
                'plugin' => 'CakeCarts',
                'controller' => 'CartItems',
                'action' => 'index'
            ]));
        }
//        Log::debug(print_r('$newCartItem->getErrors()', true));
//        Log::debug(print_r($newCartItem->getErrors(), true));
        dd(print_r($newCartItem->getErrors(), true));
        $this->Flash->error('Failed to add to cart.');

        return $this->redirect($this->referer([
            'plugin' => 'CakeCarts',
            'controller' => 'CartItems',
            'action' => 'index'
        ]));
    }

    /**
     * Edit method
     *
     * @param string|null $id Cart Item id.
     * @return \Cake\Http\Response|null|void Redirects on successful edit, renders view otherwise.
     * @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
     */
    public function edit($id = null)
    {
        $this->request->allowMethod(['post', 'put', 'patch']);

        $cartItem = $this->CartItems->find()
            ->where(['CartItems.id' => $id])
            ->contain(['Carts'])
            ->firstOrFail();

        $this->ShoppingCart->checkIfIsOwnCart($cartItem->cart);

        if ($this->request->is(['patch', 'post', 'put'])) {
            $postData = $this->request->getData();
            $qty = $this->request->getData('qty', 1);
            $price = $this->request->getData('price', null);
            $subtotal = isset($price) ? bcmul("$qty", "$price", 5) : null;
            $postData['subtotal'] = $subtotal;
            $cartItem = $this->CartItems->patchEntity($cartItem, $postData, [
                'validate' => Configure::readOrFail('CakeCarts.CartItems.requirePricing') ? 'requiresPricing' : 'default',
            ]);
            if ($this->CartItems->save($cartItem)) {
                $this->Flash->success(__('The cart item has been saved.'));

                return $this->redirect($this->referer([
                    'plugin' => 'CakeCarts',
                    'controller' => 'CartItems',
                    'action' => 'index'
                ]));
            }
            Log::debug(print_r('$cartItem->getErrors()', true));
            Log::debug(print_r($cartItem->getErrors(), true));
            $this->Flash->error(__('The cart item could not be saved. Please, try again.'));
        }

        return $this->redirect($this->referer([
            'plugin' => 'CakeCarts',
            'controller' => 'CartItems',
            'action' => 'index'
        ]));
    }

    /**
     * Delete method
     *
     * @param string|null $id Cart Item id.
     * @return \Cake\Http\Response|null Redirects to index.
     * @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
     */
    public function delete($id = null)
    {
        $this->request->allowMethod(['post', 'delete']);
        $identity = $this->getRequest()->getAttribute('identity');

//        $cart = $this->viewBuilder()->getVar('cart');
        $cartItem = $this->CartItems->find()
            ->where(['CartItems.id' => $id])
            ->contain(['Carts'])
            ->firstOrFail();

        $this->ShoppingCart->checkIfIsOwnCart($cartItem->cart);

        unset($cartItem->cart);
        if ($this->CartItems->delete($cartItem)) {
            $this->Flash->success(__('The cart item has been deleted.'));
        } else {
            $this->Flash->error(__('The cart item could not be deleted. Please, try again.'));
        }

        return $this->redirect($this->referer([
            'plugin' => 'CakeCarts',
            'controller' => 'CartItems',
            'action' => 'index'
        ]));
    }
}