interceptor not generate for \Magento\Catalog\Block\Product\ListProduct

Question

I'm trying to create plugin for getProductPrice but \Magento\Catalog\Block\Product\ListProduct Block Class not generate Interceptor Class like Magento\Catalog\Block\Product\ListProduct\Interceptor.

My 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\Catalog\Block\Product\ListProduct">
        <plugin name="addSimplePriceUnit" type="MagArs\PriceUnit\Plugin\Product\Simple"/>
    </type>
</config>

My plugin Class

namespace MagArs\PriceUnit\Plugin\Product;
    class Simple {
        public function beforeGetProductPrice(\Magento\Catalog\Block\Product\ListProduct $subject, $result){
            return $result;
        }
    }

moduel.xml file

<?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="MagArs_PriceUnit" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Catalog"/>
        </sequence>
    </module>
</config>

I am using magento enterprise version 2.2.5

Answer 1

I solve this by using virtual types plugins.

I just add in my di.xml file 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="addSimplePriceUnit" type="MagArs\PriceUnit\Plugin\Product\Simple" />
    </type>
    <virtualType name="Magento\CatalogSearch\Block\SearchResult\ListProduct">
        <plugin name="addSimplePriceUnitVirtualPlugin"
                type="MagArs\PriceUnit\Plugin\Product\Simple" />
    </virtualType>
</config>

and plugin class here

class Simple extends AbstractPriceUnit {
    public function afterGetProductPrice(\Magento\Catalog\Block\Product\ListProduct $product, $result){
        return $result."<h2>some html</h2>";
    }
}

I found the solution from the following link

Answer 2

Please try replacing your code with:

class Simple {
     public function 
    beforeGetProductPrice(\Magento\Catalog\Block\Product\ListProduct $subject, \Magento\Catalog\Model\Product $product){
          //you have to add your logic
      }
        }

Check after running below this commands:

rm -rf generated/*

php bin/magento c:c

php bin/magento c:f

Answer 3

There is no issue you just need to delete generated folder and then check.

If the cache is enabled then you need to refresh cache using

php bin/magento cache:clean

Update your di.xml with this code,

<?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="addSimplePriceUnit" sortOrder="1" disabled="false" type="MagArs\PriceUnit\Plugin\Product\Simple"/>
    </type>
</config>

Create Plugin MagArs\PriceUnit\Plugin\Product\Simple.php

<?php

namespace MagArs\PriceUnit\Plugin\Product;

class Simple
{
    public function beforeGetProductPrice(
        \Magento\Catalog\Block\Product\ListProduct $subject,
        $result
    ) {
        return $result;
    }

}

After this you can check your productlist page.