CakeProducts/src/Controller/ProductsController.php

<?php
declare(strict_types=1);

namespace CakeProducts\Controller;

use Cake\Core\Configure;
use Cake\Log\Log;
use Cake\ORM\Table;
use Cake\ORM\TableRegistry;
use CakeProducts\Controller\AppController;
use CheeseCake\Controller\Traits\OverrideTableTrait;
;

/**
 * Products Controller
 *
 * @property \CakeProducts\Model\Table\ProductsTable $Products
 */
class ProductsController extends AppController
{
    use OverrideTableTrait;

    /**
     * @return void
     */
    public function initialize(): void
    {
        parent::initialize(); // TODO: Change the autogenerated stub
//        $this->_defaultTable = 'CakeProducts.Products';
//        $this->_tableConfigKey = 'CakeProducts.Products.table';
    }

    /**
     * Index method
     *
     * @return \Cake\Http\Response|null|void Renders view
     */
    public function index()
    {
        $query = $this->getTable()->find()
            ->contain(['ProductCategories']);
        $products = $this->paginate($query);

        $this->set(compact('products'));
    }

    /**
     * View method
     *
     * @param string|null $id Product id.
     * @return \Cake\Http\Response|null|void Renders view
     * @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
     */
    public function view($id = null)
    {
        $product = $this->getTable()->get($id, contain: [
            'ProductCategories',
            'ProductAttributes',
            'ProductAttributes.ProductCategoryAttributes',
            'ProductAttributes.ProductCategoryAttributeOptions',
            'ProductVariants',
            'ProductVariants.ProductCategoryVariants',
            'ProductVariants.ProductCategoryVariants.ProductCategoryVariantOptions',
            'ProductSkus',
            'ProductPhotos',
        ]);
        $this->set(compact('product'));
    }

    /**
     * Add method
     *
     * @return \Cake\Http\Response|null|void Redirects on successful add, renders view otherwise.
     */
    public function add()
    {
        $productsTable = $this->getTable();
        $product = $productsTable->newEmptyEntity();
        if ($this->request->is('post')) {
            $postData = $this->request->getData();
            $saveOptions = [
                'associated' => ['ProductAttributes'],
            ];
            Log::debug(print_r('$postData', true));
            Log::debug(print_r($postData, true));
            Log::debug(print_r('$saveOptions', true));
            Log::debug(print_r($saveOptions, true));
            $productVariantsData = [];
            if (isset($postData['product_variants']) && $postData['product_variants']) {
                foreach ($postData['product_variants'] as $postedProductVariant) {
                    if (!isset($postedProductVariant['enabled']) || !$postedProductVariant['enabled'] || !isset($postedProductVariant['product_category_variant_id'])) {
                        continue;
                    }
                    $existingVariant = $this->Products->ProductCategories->ProductCategoryVariants->get($postedProductVariant['product_category_variant_id'], contain: ['ProductCategoryVariantOptions']);
                    $optionsData = [];
                    foreach ($existingVariant->product_category_variant_options as $existingOption) {
                        $optionsData[] = [
                            'variant_value' => $existingOption->variant_value,
                            'variant_label' => $existingOption->variant_label ?? null,
                            'enabled' => $existingOption->enabled,
                        ];
                    }
                    $tmpVariantData = [
                        'name' => $existingVariant->name,
                        'product_category_variant_id' => $postedProductVariant['product_category_variant_id'],
                        'enabled' => true,
                        'product_category_variant_options' => $optionsData,
                    ];
                    $productVariantsData[] = $tmpVariantData;
                }
            }
            if ($productVariantsData) {
                $saveOptions['fields'] = [
                    'name',
                    'product_category_id',
                    'product_type_id',
                    'product_attributes',
                    'product_category_variants'
                ];
                $saveOptions['associated']['ProductCategoryVariants'] = [
                    'fields' => [
                        'name',
                        'enabled',
                        'product_category_variant_options',
                    ]
                ];
                $saveOptions['associated'][] = 'ProductCategoryVariants.ProductCategoryVariantOptions';
                $postData['product_category_variants'] = $productVariantsData;
            }
            $product = $productsTable->patchEntity($product, $postData, $saveOptions);
            if ($productsTable->save($product, $saveOptions)) {
                $this->Flash->success(__('The product has been saved.'));

                return $this->redirect(['action' => 'index']);
            }
            Log::debug(print_r('$product->getErrors() next - failed in products/add', true));
            Log::debug(print_r($product->getErrors(), true));
            $this->Flash->error(__('The product could not be saved. Please, try again.'));
        }
        $productCategory = $product->product_category_id ? $productsTable->ProductCategories->find()->where(['internal_id' => $product->product_category_id])->first() : null;
        $productCatalogs = $productsTable->ProductCategories->ProductCatalogs->find('list')->toArray();
        $this->set(compact('product', 'productCatalogs', 'productCategory'));
    }

    /**
     * Edit method
     *
     * @param string|null $id Product id.
     * @return \Cake\Http\Response|null|void Redirects on successful edit, renders view otherwise.
     * @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
     */
    public function edit($id = null)
    {
        $productsTable = $this->getTable();
        $product = $productsTable->get($id, contain: [
            'ProductAttributes',
            'ProductAttributes.ProductCategoryAttributes',
            'ProductAttributes.ProductCategoryAttributes.ProductCategoryAttributeOptions',
        ]);
        if ($this->request->is(['patch', 'post', 'put'])) {
            $saveOptions = [
                'associated' => ['ProductAttributes'],
            ];
            $product = $productsTable->patchEntity($product, $this->request->getData(), $saveOptions);
            if ($productsTable->save($product)) {
                $this->Flash->success(__('The product has been saved.'));

                return $this->redirect(['action' => 'index']);
            }
            Log::debug(print_r('$product->getErrors() next - failed in products/edit', true));
            Log::debug(print_r($product->getErrors(), true));
            $this->Flash->error(__('The product could not be saved. Please, try again.'));
        }
        $productCategory = $product->product_category_id ? $productsTable->ProductCategories->find()->where(['internal_id' => $product->product_category_id])->first() : null;
        $productCatalogs = $productsTable->ProductCategories->ProductCatalogs->find('list')->toArray();
        $this->set(compact('product', 'productCatalogs', 'productCategory'));
    }

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

        $productsTable = $this->getTable();
        $product = $productsTable->get($id);
        if ($productsTable->delete($product)) {
            $this->Flash->success(__('The product has been deleted.'));
        } else {
            $this->Flash->error(__('The product could not be deleted. Please, try again.'));
        }

        return $this->redirect(['action' => 'index']);
    }
}