cake-products/src/Controller/ProductVariantsController.php

<?php
declare(strict_types=1);

namespace CakeProducts\Controller;

use Cake\Log\Log;

/**
 * ProductVariants Controller
 *
 * @property CakeProducts\Model\Table\ProductVariantsTable $ProductVariants
 */
class ProductVariantsController extends AppController {

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

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

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

	/**
     * Add method
     *
     * @return \Cake\Http\Response|null|void Redirects on successful add, renders view otherwise.
     */
	public function add($productId) {
		$product = $this->ProductVariants->Products->get($productId);
		$productVariant = $this->ProductVariants->newEmptyEntity();
		if ($this->request->is('post')) {
			$saveOptions = [];
			$postData = $this->request->getData();
			$productCategoryVariant = $this->ProductVariants->ProductCategoryVariants->get($this->request->getData('product_category_variant_id', '-1'));
			$postData['name'] = $productCategoryVariant->name;
			$postData['product_id'] = $productId;
			$productVariant = $this->ProductVariants->patchEntity($productVariant, $postData);
			if ($this->ProductVariants->save($productVariant)) {
				$this->Flash->success(__('The product variant has been saved.'));

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

			Log::debug(print_r('$productVariant->getErrors()', true));
			Log::debug(print_r($productVariant->getErrors(), true));
			$this->Flash->error(__('The product variant could not be saved. Please, try again.'));
		}
		$productCategoryVariants = $this->ProductVariants->ProductCategoryVariants
			->find('list', limit: 200)
			->where(['product_category_id' => $product->product_category_id])
			->toArray();
		$this->set(compact('productVariant', 'productCategoryVariants', 'product'));
	}

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

				return $this->redirect(['action' => 'index']);
			}
			$this->Flash->error(__('The product variant could not be saved. Please, try again.'));
		}
		$productCategoryVariants = $this->ProductVariants->ProductCategoryVariants->find('list', limit: 200)->all();
		$products = $this->ProductVariants->Products->find('list', limit: 200)->all();
		$this->set(compact('productVariant', 'productCategoryVariants', 'products'));
	}

	/**
     * Delete method
     *
     * @param string|null $id Product Variant id.
     * @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
     * @return \Cake\Http\Response|null Redirects to index.
     */
	public function delete($id = null) {
		$this->request->allowMethod(['post', 'delete']);
		$productVariant = $this->ProductVariants->get($id);
		if ($this->ProductVariants->delete($productVariant)) {
			$this->Flash->success(__('The product variant has been deleted.'));
		} else {
			$this->Flash->error(__('The product variant could not be deleted. Please, try again.'));
		}

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

}