Magento – Update Const template at Magento 2 Class

classmagento2plugintemplate

I need to update a template defined in a Constant at Configurable Class(Magento/Swatches/Block/Product/Renderer/Configurable.php).

I tried with a Plugin, but how the function which gets the constant is protected, I can't update the Constant correctly.

Anyone knows the correct way to update this constant or rewrite the function to change the path to my Module template.

const CONFIGURABLE_RENDERER_TEMPLATE = 'Magento_ConfigurableProduct::product/view/type/options/configurable.phtml';

protected function getRendererTemplate()
{
return $this->isProductHasSwatchAttribute ?
self::SWATCH_RENDERER_TEMPLATE :
self::CONFIGURABLE_RENDERER_TEMPLATE;
}

Best Answer

You can create before plugin on setTemplate method and overwrite template argument.

Create plugin

class ProductSwatchPlugin
{
    public function beforeSetTemplate(
        \Magento\Swatches\Block\Product\Renderer\Configurable $subject,
        $template
    ) {
         return ['You_Module::template.phtml'];
    }
}

and declare it in DI.xml

<type name="\Magento\Swatches\Block\Product\Renderer\Configurable">
    <plugin name="you_module_change_template" type="ProductSwatchPlugin" />
</type>

See more details in official documentation

Related Solutions

Magento 2.1 – Add New Method to Block Class

Plugins are not used for adding a method, they are for altering the input/output of an existing public method.

You'll need to replace the block with one that reuses the template but has a class which extends Magento\ConfigurableProduct\Block\Product\View\Type\Configurable and contains your method.

In {module_dir}/view/frontend/layout/catalog_product_view_type_configurable.xml :

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="product.info.options.configurable" remove="true"/>
        <referenceBlock name="product.info.options.wrapper">
            <block class="Your\Module\Block\Product\View\Type\Configurable" name="my.product.info.options.configurable" before="-" template="Magento_ConfigurableProduct::product/view/type/options/configurable.phtml"/>
        </referenceBlock>
    </body>
</page>

Magento2 Module – Fix ‘main.CRITICAL: Plugin Class Doesn’t Exist’

I couldn't reproduce your error, but I got an other one.

Then I did some minor adjustments to your code and it worked.
First drop the InstallSchema.php file. It does nothing so it is useless.

Then make sure that your plugin file is in Amaj/CorePlugin/Model/Currency/Plugin.php and it looks like this:

<?php

namespace Amaj\CorePlugin\Model\Currency;

class Plugin
{
    protected $logger;

    public function __construct(\Psr\Log\LoggerInterface $logger) {
        $this->logger = $logger;
    }

    /**
     * @param $subject
     * @param \Closure $proceed
     * @param $price
     * @param array $options
     * @return string
     */
    public function aroundFormatTxt(
        $subject,
        \Closure $proceed,
        $price,
        $options = []
    )
    {
        $this->logger->info('Amaj aroundFormatTxt');
        return '2';
    }

}

you don't need parent::__construct(); in the constructor because there is no parent class.
And I replaced $logger->info with $this->logger->info because there is no $logger variable.

Best Answer

Related Solutions

Magento 2.1 – Add New Method to Block Class

Magento2 Module – Fix ‘main.CRITICAL: Plugin Class Doesn’t Exist’

Related Topic