Magento – Magento 2 create plugin for the module

magento2plugin

I have created plugin to add link for every product as below:

<?php
namespace Vendorname\Modulename\Plugin;

class ProductData
{


    protected $urlInterface;

    protected $scopeConfig;

    public function __construct(
        \Magento\Framework\UrlInterface $urlInterface,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
        ) {
        $this->urlInterface = $urlInterface;
        $this->scopeConfig = $scopeConfig;
    }

    public function aroundGetProductDetailsHtml(
        \Magento\Catalog\Block\Product\ListProduct $subject,
        \Closure $proceed,
        \Magento\Catalog\Model\Product $product
        )
    {
        $result = $proceed($product);

         return $result . '<a href="#">mydata</a>';

        return $result;
    }
}

Above is working fine added mydata link to every product. But it is not working on search page. Can anyone help me to add link to search page product using plugin

di.xml file

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

     <type name="Magento\Catalog\Block\Product\ListProduct">
        <plugin name="my-block"
                type="Vendorname\Modulename\Plugin\ProductData"
                sortOrder="10"/>
    </type>
</config>

Best Answer

Basically the search page uses the same template as the product list BUT it uses a virtual type block that uses the Magento\Catalog\Block\Product\ListProduct class you're plugin.

<virtualType name="Magento\CatalogSearch\Block\SearchResult\ListProduct" type="Magento\Catalog\Block\Product\ListProduct">
    <arguments>
        <argument name="catalogLayer" xsi:type="object">Magento\Catalog\Model\Layer\Search</argument>
    </arguments>
</virtualType>

That's where the official documentation is confusing because in the list of plugin limitations it is said that:

Plugins cannot be used with Virtual types

However, the following example is given:

<config>
    <type name="{ObservedType}">
        <plugin name="{pluginName}" type="{PluginClassName}" sortOrder="1" disabled="true"/>
    </type>
</config>

And it is said that:

type name. A class, interface, or virtual type, which the plugin observes.

Really confusing here, what I would try if I were you would still to try plugin the virtual type by updating your di.xml like this:

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

     <type name="Magento\Catalog\Block\Product\ListProduct">
        <plugin name="my-block"
                type="Vendorname\Modulename\Plugin\ProductData"
                sortOrder="10"/>
    </type>
     <type name="Magento\CatalogSearch\Block\SearchResult\ListProduct">
        <plugin name="my-search-block"
                type="Vendorname\Modulename\Plugin\ProductData"
                sortOrder="10"/>
    </type>
</config>

Related Solutions

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.

Magento – Magento 2.2.5: Overriding Admin Controller sales/order

It is recommendable use the plugin instead of preference for this.

https://devdocs.magento.com/guides/v2.2/extension-dev-guide/plugins.html

You must do the next.

Vendor/Namespace/etc/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">
<type name="Magento\Sales\Controller\Adminhtml\Order\Index">
    <plugin name="vendor_namespace_plugin_list" type="Vendor\Namespace\Plugin\ControllerOrderIndexPlugin"/>
</type>

Vendor/Namespace/Plugin/ControllerOrderIndexPlugin.php

<?php

namespace Vendor\Namespace\Plugin;

use Magento\Framework\Message\ManagerInterface;
use Magento\Sales\Controller\Adminhtml\Order\Index;

/**
 * Class ControllerOrderIndexPlugin
 */
class ControllerOrderIndexPlugin
{

    /**
     * @var ManagerInterface
     */
    private $messageManager;

    /**
     * ControllerOrderIndexPlugin constructor.
     *
     * @param ManagerInterface $messageManager
     */
    public function __construct(ManagerInterface $messageManager)
    {
        $this->messageManager = $messageManager;
    }

    /**
     * @param Index $subject
     */
    public function beforeExecute(
        Index $subject
    ) {
        $this->messageManager->addSuccessMessage(__('Message from new admin controller.'));
    }
}

Best Answer

Related Solutions

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

Magento – Magento 2.2.5: Overriding Admin Controller sales/order

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