Magento2 :Remplacement de la classe Block – ne génère pas de sortie

Question

J'essaie de remplacer le module-catalog/Block/Product/View/Options/Type/Select.php classe avec une nouvelle version qui inclut quelques autres éléments de php personnalisé (ajout de classes HTML et d'identifiants aux DIV contenants).J'essaie d'y parvenir en créant un nouveau module.Malheureusement, lorsque ce nouveau module est activé, les options de sélection ne sont pas affichées sur la page produit.Le reste de la page est correct, juste sans les options de sélection (cases à cocher et boutons radio).Je pense que tout semble bien et devrait fonctionner, donc je ne comprends pas pourquoi le Select.php ne renvoie pas les options de sélection.

Structure du répertoire :

app/
├── Mike/
│   ├── Newselect/
│   │   ├── Block/
│   │   │   ├── Product/
│   │   │   │   ├── View/
│   │   │   │   │   ├── Options/
│   │   │   │   │   │   ├── Type/
│   │   │   │   │   │   │   ├── Select.php
│   │   ├── etc/
│   │   │   ├── di.xml
│   │   │   ├── module.xml
│   │   ├── registration.php
│   │   ├── composer.json

di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Catalog\Block\Product\View\Options\Type\Select" type="Mike\Newselect\Block\Product\View\Options\Type\Select" />
</config>

module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
        <module name="Mike_Newselect" setup_version="1.0.0"/>
</config>

registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Mike_Newselect',
    __DIR__    
);

composer.json

{
    "name": "Mike/Newselect",
    "description": "Update the Select module to add HTML classes and IDs",
    "require": {
        "php": "~5.5.0|~5.6.0|~7.0.0",
        "magento/module-store": "100.0.*",
        "magento/module-eav": "100.0.*",
        "magento/module-cms": "100.0.*",
        "magento/module-indexer": "100.0.*",
        "magento/module-customer": "100.0.*",
        "magento/module-theme": "100.0.*",
        "magento/module-checkout": "100.0.*",
        "magento/module-backend": "100.0.*",
        "magento/module-widget": "100.0.*",
        "magento/module-wishlist": "100.0.*",
        "magento/module-tax": "100.0.*",
        "magento/module-msrp": "100.0.*",
        "magento/module-catalog-inventory": "100.0.*",
        "magento/module-directory": "100.0.*",
        "magento/module-catalog-rule": "100.0.*",
        "magento/module-product-alert": "100.0.*",
        "magento/module-url-rewrite": "100.0.*",
        "magento/module-catalog-url-rewrite": "100.0.*",
        "magento/module-page-cache": "100.0.*",
        "magento/module-quote": "100.0.*",
        "magento/module-config": "100.0.*",
        "magento/module-media-storage": "100.0.*",
        "magento/framework": "100.0.*",
        "magento/module-configurable-product": "100.0.*",
        "magento/module-ui": "100.0.*"
    },
    "suggest": {
        "magento/module-cookie": "100.0.*",
        "magento/module-catalog-sample-data": "Sample Data version:100.0.*"
    },
    "type": "magento2-module",
    "version": "100.0.5",
    "license": [
        "OSL-3.0",
        "AFL-3.0"
    ],
    "autoload": {
        "files": [
            "registration.php"
        ],
        "psr-4": {
            "Magento\\Catalog\\": ""
        }
    }
}

Select.php (ceci est juste une copie du fichier principal Select.php – pas encore mis à jour – en dehors de l'espace de noms et de l'extension de la classe principale)

<?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * Product options text type block
 *
 * @author     Magento Core Team <core@magentocommerce.com>
 */

namespace Mike\Newselect\Block\Product\View\Options\Type;

class Select extends \Magento\Catalog\Block\Product\View\Options\Type\Select
{
    /**
     * Return html for control element
     *
     * @return string
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     * @SuppressWarnings(PHPMD.NPathComplexity)
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    public function getValuesHtml()
    {
        $_option = $this->getOption();
        $configValue = $this->getProduct()->getPreconfiguredValues()->getData('options/' . $_option->getId());
        $store = $this->getProduct()->getStore();

        $this->setSkipJsReloadPrice(1);
        // Remove inline prototype onclick and onchange events

        if ($_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_DROP_DOWN ||
            $_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_MULTIPLE
        ) {
            $require = $_option->getIsRequire() ? ' required' : '';
            $extraParams = '';
            $select = $this->getLayout()->createBlock(
                'Magento\Framework\View\Element\Html\Select'
            )->setData(
                [
                    'id' => 'select_' . $_option->getId(),
                    'class' => $require . ' product-custom-option admin__control-select'
                ]
            );
            if ($_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_DROP_DOWN) {
                $select->setName('options[' . $_option->getid() . ']')->addOption('', __('-- Please Select --'));
            } else {
                $select->setName('options[' . $_option->getid() . '][]');
                $select->setClass('multiselect admin__control-multiselect' . $require . ' product-custom-option');
            }
            foreach ($_option->getValues() as $_value) {
                $priceStr = $this->_formatPrice(
                    [
                        'is_percent' => $_value->getPriceType() == 'percent',
                        'pricing_value' => $_value->getPrice($_value->getPriceType() == 'percent'),
                    ],
                    false
                );
                $select->addOption(
                    $_value->getOptionTypeId(),
                    $_value->getTitle() . ' ' . strip_tags($priceStr) . '',
                    ['price' => $this->pricingHelper->currencyByStore($_value->getPrice(true), $store, false)]
                );
            }
            if ($_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_MULTIPLE) {
                $extraParams = ' multiple="multiple"';
            }
            if (!$this->getSkipJsReloadPrice()) {
                $extraParams .= ' onchange="opConfig.reloadPrice()"';
            }
            $select->setExtraParams($extraParams);

            if ($configValue) {
                $select->setValue($configValue);
            }

            return $select->getHtml();
        }

        if ($_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_RADIO ||
            $_option->getType() == \Magento\Catalog\Model\Product\Option::OPTION_TYPE_CHECKBOX
        ) {
            $selectHtml = '<div class="options-list nested" id="options-' . $_option->getId() . '-list">';
            $require = $_option->getIsRequire() ? ' required' : '';
            $arraySign = '';
            switch ($_option->getType()) {
                case \Magento\Catalog\Model\Product\Option::OPTION_TYPE_RADIO:
                    $type = 'radio';
                    $class = 'radio admin__control-radio';
                    if (!$_option->getIsRequire()) {
                        $selectHtml .= '<div class="field choice admin__field admin__field-option">' .
                            '<input type="radio" id="options_' .
                            $_option->getId() .
                            '" class="' .
                            $class .
                            ' product-custom-option" name="options[' .
                            $_option->getId() .
                            ']"' .
                            ($this->getSkipJsReloadPrice() ? '' : ' onclick="opConfig.reloadPrice()"') .
                            ' value="" checked="checked" /><label class="label admin__field-label" for="options_' .
                            $_option->getId() .
                            '"><span>' .
                            __('None') . '</span></label></div>';
                    }
                    break;
                case \Magento\Catalog\Model\Product\Option::OPTION_TYPE_CHECKBOX:
                    $type = 'checkbox';
                    $class = 'checkbox admin__control-checkbox';
                    $arraySign = '[]';
                    break;
            }
            $count = 1;
            foreach ($_option->getValues() as $_value) {
                $count++;

                $priceStr = $this->_formatPrice(
                    [
                        'is_percent' => $_value->getPriceType() == 'percent',
                        'pricing_value' => $_value->getPrice($_value->getPriceType() == 'percent'),
                    ]
                );

                $htmlValue = $_value->getOptionTypeId();
                if ($arraySign) {
                    $checked = is_array($configValue) && in_array($htmlValue, $configValue) ? 'checked' : '';
                } else {
                    $checked = $configValue == $htmlValue ? 'checked' : '';
                }

                $selectHtml .= '<div class="field choice admin__field admin__field-option' .
                    $require .
                    '">' .
                    '<input type="' .
                    $type .
                    '" class="' .
                    $class .
                    ' ' .
                    $require .
                    ' product-custom-option"' .
                    ($this->getSkipJsReloadPrice() ? '' : ' onclick="opConfig.reloadPrice()"') .
                    ' name="options[' .
                    $_option->getId() .
                    ']' .
                    $arraySign .
                    '" id="options_' .
                    $_option->getId() .
                    '_' .
                    $count .
                    '" value="' .
                    $htmlValue .
                    '" ' .
                    $checked .
                    ' price="' .
                    $this->pricingHelper->currencyByStore($_value->getPrice(true), $store, false) .
                    '" />' .
                    '<label class="label admin__field-label" for="options_' .
                    $_option->getId() .
                    '_' .
                    $count .
                    '"><span>' .
                    $_value->getTitle() .
                    '</span> ' .
                    $priceStr .
                    '</label>';
                $selectHtml .= '</div>';
            }
            $selectHtml .= '</div>';

            return $selectHtml;
        }
    }
}

catalog_product_view.xml

<block class="Magento\Catalog\Block\Product\View\Options\Type\Select" as="select" template="product/view/options/type/select.phtml"/>

Answer 1

Tout d'abord, nous devons ajouter la méthode d'injection Constructor à notre classe de sélection personnalisée : (Modifier:nous n'avons pas besoin d'ajouter Constructor Injection, nous devons ajouter le module de séquence)

    <?php
    namespace Mike\Newselect\Block\Product\View\Options\Type;

    class Select extends \Magento\Catalog\Block\Product\View\Options\Type\Select
    {
        public function __construct(
            \Magento\Framework\View\Element\Template\Context $context,
            \Magento\Framework\Pricing\Helper\Data $pricingHelper,
            \Magento\Catalog\Helper\Data $catalogData,
            array $data = []
        )
        {
            parent::__construct($context, $pricingHelper, $catalogData, $data);
        }
        .....

Il faut ajouter le :

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
        <module name="Mike_Newselect" setup_version="1.0.0">
            <sequence>
                <module name="Magento_Catalog"/>
            </sequence>
        </module>
</config>

http://devdocs.magento.com/guides/v2.1/extension-dev-guide/build/module-load-order.html

Deuxièmement, copiez vendor/magento/module-catalog/view/frontend/templates/product/view/options/type/select.phtml à notre module personnalisé app/code/Mike/Newselect/view/frontend/templates/product/view/options/type/select.phtml